The solution of the expression is,
⇒ x = 3,211 / 1,014
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ (x + 2 3/13) - 1 7/26 = 4 5/39
Now, We can simplify as;
⇒ (x + 2 3/13) - 1 7/26 = 4 5/39
⇒ x + 29/13 - 33/26 = 161/39
⇒ x + 58/26 - 33/26 = 161 / 39
⇒ x + 25/26 = 161 / 39
⇒ x = 161/39 - 25/26
⇒ x = (4,186 - 975) / 1014
⇒ x = 3,211 / 1,014
Thus, The solution of the expression is,
⇒ x = 3,211 / 1,014
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what are the trig ratios for a right triangle?
Sintheta=[tex]\frac{Perpendicular}{Hypotenuse}[/tex]
Costheta=[tex]\frac{Base}{Hypotenuse}[/tex]
Tantheta=[tex]\frac{Perpendicular}{Base}[/tex]
Easy way to remember this ' Some People Have Curly Brown Hair Through Proper Brushing'
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The trigonometric ratios for a right triangle are sine, cosine, and tangent, which relate the sides of the triangle.
Explanation:The trigonometric ratios for a right triangle are sine, cosine, and tangent. Each ratio is defined in terms of the sides of the triangle.
The sine (sin) ratio is defined as the ratio of the opposite side to the hypotenuse. It is calculated as sin(A) = y/h, where y is the length of the opposite side and h is the length of the hypotenuse.
The cosine (cos) ratio is defined as the ratio of the adjacent side to the hypotenuse. It is calculated as cos(A) = x/h, where x is the length of the adjacent side and h is the length of the hypotenuse.
The tangent (tan) ratio is defined as the ratio of the opposite side to the adjacent side. It is calculated as tan(A) = y/x, where y is the length of the opposite side and x is the length of the adjacent side.
What is the answer to this question?
Answer:
80 HOPE THIS HELPED
Step-by-step explanation:
20+20+20+20=80
20 X 4 = 80
Consider two parallel line segments.
Part A: Find the slope of segment CD with endpoints C(−5, 4) and D(2, 1). Show your work. (2 points)
Part B: What is the value of y so that segment AB with endpoints A(−6, y) and B(1, −5) is parallel to segment CD question mark Show your work. (2 points)
Answer:
Part A: -3/7
Part B: y = -2
Step-by-step explanation:
Parallel lines have the same slope. Find the slope of CD. Then substitute it to find the value needed for AB.
The slope formula is
[tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{4-1}{-5-2} = \frac{3}{-7}[/tex]
Use the same formula and solve for y.
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\\\-\frac{3}{7}= \frac{y--5}{-6-1} \\\\\frac{3}{-7} =\frac{y+5}{-7}\\\\3 = y+5\\3-5 = y\\-2 = y[/tex]
Find the area of the parallelogram.
A. 54cm2
B. 85cm2
C. 170cm2
D. 27cm2
Answer:
170 cm2
Step-by-step explanation:
Area of Parallelogram = Base x Altitude
Base = 10
Altitude = 17
10 x 17 = 170
Answer = 170 cm2
Given a=-3 and b=4 and c=-5, evaluate |c-a-b|.
Answer:
2
4
6
answer should be 6
explanation: -5-(-3)-4 = -5 + 3 - 4 = -2 - 4 = -6 and the absolute value of -6 is 6
Adam wants to tip the room service person 15 percent of the food bill of $165.56. how much should he tip?
he should tip around this $24.83
Answer:
$24
Step-by-step explanation:
15 % of $165.56
15/100 x 165.56/100 =
245340/10000 = 24.534 ($24)
sara works at a local hotdog stand. she makes $5.00 per hour (h) and $1 per hot dog (d) that she sells. write an equation that sara could use to determine her pay check.
Answer: 5h + d
Step-by-step explanation: The equation that Sara could use to determine her pay check is 5h + d = amount she will earn.
what is the volume of a cylinder with a radius of 6 cm and height of 13
Answer:
V≈1470.27cm³
Hope this helps :D
What are the dimensions of the poster at 1/3 it’s current size
Answer:
2 in. by 3 in
Step-by-step explanation:
i think i could be totally wrong i probably am so so sorry
Complete each of the following statements with the letter that represents the expression
The equivalent expressions are:
(3x² - 7x + 14) + (5x² + 4x - 6) = B. 8x² - 3x + 8
(2x² - 5x - 3) + (-10x² + 2x + 7) = A. -8x² - 3x + 4
(12x² - 2x - 13) + (-4x² + 5x + 9) = C. 8x² + 3x - 4
We have,
Expression:
(3x² - 7x + 14) + (5x² + 4x - 6)
Combine like terms.
3x² - 7x + 14 + 5x² + 4x - 6
8x² - 3x + 8
Expression:
(2x² - 5x - 3) + (-10x² + 2x + 7)
Combine like terms.
2x² - 5x - 3 - 10x² + 2x + 7
-8x² - 3x + 4
Expression:
(12x² - 2x - 13) + (-4x² + 5x + 9)
Combine like terms.
12x² - 4x² - 2x + 5x - 13 + 9
8x² + 3x - 4
Thus,
(3x² - 7x + 14) + (5x² + 4x - 6) = B. 8x² - 3x + 8
(2x² - 5x - 3) + (-10x² + 2x + 7) = A. -8x² - 3x + 4
(12x² - 2x - 13) + (-4x² + 5x + 9) = C. 8x² + 3x - 4
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Question
There are 18 black-and-white photos in the album if there are 90 photos in the album with fraction of the photos are black and white
Answer:
18/90 or you can say 18 over 90.
Step-by-step explanation:
So we have 18 out of the total of 90 photos.
So we know automatically the fraction is 18/90, we have 18 out of the rest of the 90 photos.
The fraction of photos in the album that are black and white is calculated by dividing the number of black and white photos (18) by the total number of photos (90) which results in a fraction of 0.2 or 1/5.
Explanation:To find what fraction of the photos are black and white, you'll start by considering all of the photos in the album. This is your total and it's 90 photos. Then, focus on the specific type of photos you're interested in, which are the black and white ones. There are 18 black and white photos. So to find the fraction of photos that are black and white, you would divide the number of black and white photos (18) by the total number of photos (90). This calculation would look something like this: 18 ÷ 90 = 0.2
So, the fraction of black-and-white photographs is 0.2 or, expressed as a common fraction, 1/5. This means that out of every 5 photos in the album, 1 of them is black and white.
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A cube had a volume of 1/512 cubic meter. What is the length of each side of the cube using the formula "volume=Length×Width×Hight." Please explain your thinking.
Answer:
The length of each side of the cube is [tex]\frac{1}{8}\ m[/tex]
Step-by-step explanation:
we know that
The volume of a cube is equal to
[tex]V=LWH[/tex]
but remember that in a cube
Length, width and height have the same value
so
Let
b-----> the length side of the cube
[tex]L=W=H=b[/tex]
substitute in the formula
[tex]V=(b)(b)(b)=b^{3}[/tex]
In this problem we have
[tex]V=\frac{1}{512}\ m^{3}[/tex]
substitute and solve for b
[tex]b^{3}=\frac{1}{512}[/tex]
[tex]b=\sqrt[3]{\frac{1}{512}}\\ \\b=\frac{1}{8}\ m[/tex]
therefore
The length of each side of the cube is [tex]\frac{1}{8}\ m[/tex]
For the angles α and β in the figures, find cos(α + β)?
Answer:
[tex]\cos(\alpha +\beta)=\frac{2}{3}(1-\frac{\sqrt{5}}{5})[/tex]
Step-by-step explanation:
Let the hypotenuse of the smaller triangle be h units.
Then; from the Pythagoras Theorem.
[tex]h^2=4^2+2^2[/tex]
[tex]h^2=16+4[/tex]
[tex]h^2=20[/tex]
[tex]h=\sqrt{20}[/tex]
[tex]h=2\sqrt{5}[/tex]
From the smaller triangle;
[tex]\cos (\alpha)=\frac{4}{2\sqrt{5} }=\frac{2}{\sqrt{5} }[/tex] and [tex]\sin(\alpha)=\frac{2}{2\sqrt{5} }=\frac{1}{\sqrt{5} }[/tex]
From the second triangle, let the other other shorter leg of the second triangle be s units.
Then;
[tex]s^2+4^2=6^2[/tex]
[tex]s^2+16=36[/tex]
[tex]s^2=36-16[/tex]
[tex]s^2=20[/tex]
[tex]s=\sqrt{20}[/tex]
[tex]s=2\sqrt{5}[/tex]
[tex]\cos(\beta)=\frac{2\sqrt{5} }{6}=\frac{\sqrt{5} }{3}[/tex]
and
[tex]\sin(\beta)=\frac{4}{6}=\frac{2}{3}[/tex]
We now use the double angle property;
[tex]\cos(\alpha +\beta)=\cos(\alpha)\cos(\beta) -\sin(\alpha)\sin(\beta)[/tex]
we plug in the values to obtain;
[tex]\cos(\alpha +\beta)=\frac{2}{\sqrt{5} }\times \frac{\sqrt{5} }{3}-\frac{1}{\sqrt{5} }\times \frac{2}{3}[/tex]
[tex]\cos(\alpha +\beta)=\frac{2}{3}(1-\frac{\sqrt{5}}{5})[/tex]
Answer:
[tex]cos(\alpha + \beta)=cos(68.4\°) \approx 0.37[/tex]
Step-by-step explanation:
Little triangle.We know both legs, we can use the tangent trigonometric reason to find the angle.
[tex]tan\alpha =\frac{2}{4}\\ tan \alpha=\frac{1}{2}\\ \alpha=tan^{-1}(\frac{1}{2} )\\ \alpha \approx 26.6\°[/tex]
Larger triangle.We know the hypothenuse and the opposite leg. We can use the sin trigonometric reason to find the angle
[tex]sin\beta =\frac{4}{6}\\ sin\beta=\frac{2}{3}\\ \beta=sin^{-1} (\frac{2}{3} )\\\beta= 41.8\°[/tex]
So, the sum of them is
[tex]\alpha + \beta = 26.6+41.8= 68.4\°[/tex]
Then,
[tex]cos(\alpha + \beta)=cos(68.4\°) \approx 0.37[/tex]
Therefore,
[tex]cos(\alpha + \beta)=cos(68.4\°) \approx 0.37[/tex]
write an expression for the calculation the difference of the products 5 and 2 and 5 and 1
Answer: 5
Step-by-step explanation: The first piece of information that you need to know is that the product is the answer when two numbers are multiplied. Therefore, you need to multiply the two sets of numbers, and then subtract.
The formula will be:
(5 x 2) - (5 x 1)=
First, do what is inside the parentheses:
10 - 5=
And solve...
5
The expression for the calculation the difference of the products 5 and 2 and 5 and 1 is (5 x 2) - (5 x 1).
What are arithmetic Operation?Addition (Finding the Sum; '+') Subtraction (Finding the difference; '-') Multiplication (Finding the product; '×' ) Division (Finding the quotient; '÷')
The first thing you should be aware of is that the result of multiplying two integers is the product.
The two sets of numbers must therefore be multiplied before being subtracted.
The Expression will be:
(5 x 2) - (5 x 1)
First, work on the brackets separately
(5 x 2) = 10
(5 x 1)= 5
So, (5 x 2) - (5 x 1)
= 10 - 5
=5
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What’s the answer to this question
Answer:
The length is 65 cm and the width is 12 cm
Step-by-step explanation:
A = lw = 780
P = 2 (l+w) = 154
The length is 5 more than 5 times the width
l=5w+5
P = 2 (l+w) = 154
Divide each side by 2
2 /2 (l+w) = 154/2
l+w = 77
Substituting l = 5w+5
5w+5 +w = 77
6w+5 = 77
Subtract 5 from each side
6w +5-5 = 77-5
6w = 72
Divide each side by 6
6w/6 = 72/6
w = 12
Now lets find l
l = 5w+5
l = 5(12)+5
l = 60+5
l = 65
which describes the type of sequence in 99, 89.9, 78.8, 68.7, . . . . . ?
a) neither geometric nor arithmetic
b) geometric
c) arithmetic
d) both arithmetic and geometric
(pLeAsE TelL mE wHY yOu PIcKeD YoUr AnSwER)
Answer:
Step-by-step explanation:
The is neither geometric nor arithmetic. The differences have to be the same.
99 - 89.9 = 9.1
89.9 - 78.8 = 11.1
78.8 - 68.7 = 10.1
==========
Find angle A. to the nearest tenth
Answer:
A ≈ 56.1°
Step-by-step explanation:
By the law of sines, ...
sin(A)/a = sin(C)/c
sin(A) = (a/c)·sin(C)
A = arcsin((a/c)·sin(C)) = arcsin(5/6·sin(95°)) ≈ 56.1°
PLEASE HELP FAST!!!
Simplify the expression.
(x + 6)^2
Please don’t guess I really need to get this problem correct. My grade depends on it!
(a+b)²=a²+2ab+b²
(x+6)²=x²+2× x × 6+6²=x²+12x+36
hope this helps :)
Answer:
[tex]\large\boxed{(x+6)^2=x^2+12x+36}[/tex]
Step-by-step explanation:
[tex](x+6)^2\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\=x^2+2(x)(6)+6^2=x^2+12x+36\\\\\text{Other method}\\\\(x+6)^2=(x+6)(x+6)\\\\\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(x)(x)+(x)(6)+(6)(x)+(6)(6)=x^2+6x+6x+36\\\\=x&^2+12x+36[/tex]
Help need ASAP!! Thanks!! Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the squares share one side with the rectangle. The total area of the constructed figure is 120 cm2. What is the perimeter of the rectangle?
Answer:
The perimeter of rectangle is [tex]18\ cm[/tex]
Step-by-step explanation:
Let
x-----> the length of the rectangle
y----> the width of the rectangle
we know that
[tex]x=y+5[/tex] ----> equation A
[tex]120=xy+2x^{2}+2y^{2}[/tex] ---> equation B (area of the constructed figure)
substitute the equation A in equation B
[tex]120=(y+5)y+2(y+5)^{2}+2y^{2}[/tex]
[tex]120=y^{2}+5y+2(y^{2}+10y+25)+2y^{2}\\ 120=y^{2}+5y+2y^{2}+20y+50+2y^{2}\\120=5y^{2}+25y+50\\5y^{2}+25y-70=0[/tex]
using a graphing tool -----> solve the quadratic equation
see the attached figure
The solution is
[tex]y=2\ cm[/tex]
Find the value of x
[tex]x=y+5[/tex] ----> [tex]x=2+5=7\ cm[/tex]
Find the perimeter of rectangle
[tex]P=2(x+y)=2(7+2)=18\ cm[/tex]
The graph models which linear equation?
3x + 5y = 10
v-2x-2
3x - 5y = 10
Answer:
a
Step-by-step explanation:
Based on the slope and y-intercept, the graph most closely models the linear equation 3x + 5y = 10.
Out of the three choices you provided, the graph most closely resembles the equation 3x + 5y = 10. Here's why:
Slope: The slope of the line in the graph is positive. This means that as x increases, y also increases. The equation 3x + 5y = 10 has a positive slope of [tex]$\dfrac{3}{5}$[/tex], which matches the slope of the line in the graph.Y-intercept: The y-intercept of the line in the graph is 2. This means that the line passes through the point (0, 2). When you plug x = 0 into the equation 3x + 5y = 10, you get 5y = 10, which means y = 2.So, the equation 3x + 5y = 10 also has a y-intercept of 2.
The other two equations do not match the graph as well:
The equation v - 2x - 2 does not have a positive slope.The equation 3x - 5y = 10 has a negative slope and a different y-intercept.Which container has the greatest surface area? (Use 3.14 for π .)
cone
cylinder
square pyramid
rectangular prism
Answer:
The rectangular prism has the greatest surface area
Step-by-step explanation:
Verify the surface area of each container
case A) A cone
The surface area of a cone is equal to
[tex]SA=\pi r^{2} +\pi rl[/tex]
we have
[tex]r=6/2=3\ in[/tex] ----> the radius is half the diameter
[tex]l=10\ in[/tex]
substitute the values
[tex]SA=(3.14)(3)^{2} +(3.14)(3)(10)=122.46\ in^{2}[/tex]
case B) A cylinder
The surface area of a cylinder is equal to
[tex]SA=2\pi r^{2} +2\pi rh[/tex]
we have
[tex]r=6/2=3\ in[/tex] ----> the radius is half the diameter
[tex]h=10\ in[/tex]
substitute the values
[tex]SA=2(3.14)(3)^{2} +2(3.14)(3)(10)=244.92\ in^{2}[/tex]
case C) A square pyramid
The surface area of a square pyramid is equal to
[tex]SA=b^{2} +4[\frac{1}{2}bh][/tex]
we have
[tex]b=6\ in[/tex] ----> the length side of the square
[tex]h=10\ in[/tex] ----> the height of the triangular face
substitute the values
[tex]SA=6^{2} +4[\frac{1}{2}(6)(10)]=156\ in^{2}[/tex]
case D) A rectangular prism
The surface area of a rectangular prism is equal to
[tex]SA=2b^{2} +4[bh][/tex]
we have
[tex]b=6\ in[/tex] ----> the length side of the square base
[tex]h=10\ in[/tex] ----> the height of the rectangular face
substitute the values
[tex]SA=2(6)^{2} +4[(6)(10)]=312\ in^{2}[/tex]
Answer:
The rectangular prism has the greatest surface area
Step-by-step explanation:
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Jamal is making a scale drawing of his property. The drawing is 15 inches long and 12 inches wide. How long and wide is the property if one-inch equals 5 feet?
Answer:
75ft long 60 ft wide
Step-by-step explanation:
one inch is 5 feet so for every foot you would x 5
15x5=75
12x5=60
The actual dimensions of Jamal's property are 75 feet long and 60 feet wide.
How to solve for the dimensionsIf Jamal's scale drawing is 15 inches long and 12 inches wide, and one inch on the drawing represents 5 feet in real life, we can calculate the actual dimensions of the property.
Length of the property:
15 inches on the drawing represents 15 * 5 = 75 feet in real life.
Width of the property:
12 inches on the drawing represents 12 * 5 = 60 feet in real life.
Therefore, the actual dimensions of Jamal's property are 75 feet long and 60 feet wide.
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what is the product mentally of (ab + 3)(ab - 3)
Answer:
ab² - 9
Step-by-step explanation:
Given in the question an expression
(ab + 3)(ab - 3)
To product mentally we will use polynomial identity called
Difference of squares
a² - b² = (a+b)(a-b)here a = ab
b = 3
(ab + 3)(ab - 3) = ab² - 3² = ab² - 9
Answer:
[tex]a^2b^2 - 9[/tex]
Step-by-step explanation:
We are given the following expression and we are to determine its product mentally:
[tex] ( a b + 3 ) ( a b - 3 ) [/tex]
For this, we can use the FOIL method, which stands for First, Outer, Inner, Last.
First means multiply the terms which come first in each of the binomial, Outer means multiply the outermost terms in the product. Inner means multiply the innermost two terms. Last means multiply the terms which occur last in each binomial.
So we get:
[tex]ab*ab +3*(-3)=a^2b^2 - 9[/tex]
for f(x)=3x+1 and g(x)=x^2-6, fine (f-g)(x)
Answer:
= -x^2 +3x+7
Step-by-step explanation:
f-g(x)
means to subtract g(x) from f(x)
f(x)- g(x)=3x+1 -(x^2-6)
Distribute the minus sign
f(x)-g(x)= 3x+1 -x^2 +6
= 3x+7-x^2
= -x^2 +3x+7
Answer:
[tex]\large\boxed{(f-g)(x)=-x^2+3x+7}[/tex]
Step-by-step explanation:
[tex](f-g)(x)=f(x)-g(x)\\\\f(x)=3x+1,\ g(x)=x^2-6\\\\\text{Substitute:}\\\\(f-g)(x)=(3x+1)-(x^2-6)\\\\(f-g)(x)=3x+1-x^2-(-6)\\\\(f-g)(x)=3x+1-x^2+6\\\\(f-g)(x)=-x^2+3x+(1+6)\\\\(f-g)(x)=-x^2+3x+7[/tex]
Can i get help on 80 and 90 please
Answer:
vvv
Step-by-step explanation:
80: The answer is .1675 or .17 (rounded)
Explanation: 1/4 = .25 and 2/3 = .66 repeated/ .67
.25x.67=.1675
90: B baskets in a attempts. There is 12 baskets in 25 attempts. 12/25 = .48
The field goal average is .48
Hope this helps xoxo
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Felipe transferred a balance of $3700 to a new credit...
Answer:
(3700)(1+.059/12)^4(1+.172/12)^8 is the corect answer -Apex
Step-by-step explanation:
Answer:
Option C is correct.
Step-by-step explanation:
Felipe transferred a balance of $3700 to a new credit.
The card had an introductory offer of 5.9% APR for the first 4 months and after that 17.2 % APR.
The card compounds interest monthly, that gives n = 12
So, the equation that represents Felipe's balance at the end of the year will be:
[tex]p(1+\frac{r}{n})^{a}\times (1+\frac{r}{n})^{b}[/tex]
Here a is the introductory rate number of months that is 4
And b is the rest of the standard months that is 8
So, the expression becomes:
[tex]3700(1+\frac{0.059}{12})^{4}\times (1+\frac{0.172}{12})^{8}[/tex]
The following figure is a trapezoid. The top base is 18 inches, and the bottom base is 22 inches. The height of the trapezoid is 8.5 inches. Find the area of the trapezoid. Explain or show how you got your answer.
Answer:
The area would be 170 cubic inches.
Step-by-step explanation:
To find the area, use the area of a trapezoid formula.
A = (a + b)/2*h
Now input the values
A = (18 + 22)/2 * 8.5
A = 40/2 * 8.5
A = 20 * 8.5
A = 170
Which expression is a factor of 9r^2-4r+1?
A)3r-1
B)r-1
C)9r-1
D)There are no real factors
Answer:
Step-by-step explanation:
We could answer this either by checking each listed expression to see whether it is a factor of 9r^2-4r+1, or
We could take the coefficients of 9r^2-4r+1, determine the quantity b²-4ac (called the 'discriminant') and draw a conclusion based upon whether the discriminant is -, + or 0.
Let's use the 2nd approach.
Here, a = 9, b = -4 and c = 1.
Then the discriminant is b²2 - 4ac, or (-4)² - 4(9)(1), or 16 - 36.
Since 16 - 36 is negative, we conclude that this 9r^2 - 4r + 1 has NO REAL FACTORS.
Answer: is C
Step-by-step explanation:
Can you please help me with this?
Answer:
A
Step-by-step explanation:
The volume of a prism can be found by multiplying the area of the base by the height. It is the formula V = B*h. Here B = 108. Substitute and solve.
V = 108*8 = 864
This is answer A.
Which equation can be used to find the time, t, it takes for the ball to reach the ground?
Check the picture below, well that picture is using feet, but is pretty much the same curve for meters.
notice, it hits the ground when y = 0, or h(t) = 0, thus
[tex]\bf ~~~~~~\textit{initial velocity} \\\\ \begin{array}{llll} ~~~~~~\textit{in meters} \\\\ h(t) = -4.9t^2+v_ot+h_o \end{array} \quad \begin{cases} v_o=\stackrel{12}{\textit{initial velocity of the object}}\\\\ h_o=\stackrel{1.8}{\textit{initial height of the object}}\\\\ h=\stackrel{}{\textit{height of the object at "t" seconds}} \end{cases} \\\\\\ 0=-4.9t^2+12t+1.8\implies -4.9t^2+12t+1.8=0[/tex]
There are several equations that can be used to find the time for a ball to reach the ground in projectile motion. The specific equation depends on the given information and scenario.
Explanation:The equation that can be used to find the time it takes for the ball to reach the ground depends on the specific scenario and information given. There are several equations that can be used for projectile motion, including those that involve quadratic equations or simple equations of motion. It is important to analyze the given information and use the appropriate equation to solve for the time. For example, the quadratic formula can be used to find the time for projectile motion with vertical motion only, while the equation x = xo + vot + at² can be used to solve for the time when the initial and final positions and velocities are known.
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