Answer:
8cm
Step-by-step explanation:
1/2 × 18b = 72
9b = 72
b = 72/9
b = 8
Answer:
Answer:
8 cm
Step-by-step explanation:
1/2 × 18 b = 72
9 b = 72
b = 72/9
b = 8
. A coin is flipped 100 times and it lands on HEADS 61 times and TAILS 39 times. Find the experimental probability that the coin lands on TAILS. Express all probability as fractions in simplest terms.
Answer:
39%
Step-by-step explanation:
100% = 61% + 39%
Answer:
39/100
Step-by-step explanation:
if the coin lands on tails 39 out of 100 times the probability would be 39 out of 100 and 39 is odd so it cannot go into 100 cause it's even
GIVING BRAINLIEST ..Can somebody help me (explain your answer)
Answer:
13.04 units to the nearest hundredth.
Step-by-step explanation:
Use the Pythagoras theorem:
c^2 = a^2 + b^2 where a, b and c are the sides of a right triangle with c the hypotenuse.
In our triangle ( x = length of the hypotenuse):
x^2 = 13^2 + 1^2
x^2 = 169 + 1 = 170
x = √170
= 13.04.
If we are doing this mentally the best we can do is say that the hypotenuse is a small amount greater than 13.
What is the average speed of a cheetah that runs 9 km in 10 minutes? Give your answer in km/hr. (Hint: 10 minutes is 1/6 of an hour.)
Answer:
54kph
Step-by-step explanation:
Find the sum of the areas of a kite with diagonals of 28 and 32 inches and a rhombus with diagonals of 37 and 63 inches. Round answer to the nearest tenth of a square inch.
Answer:
total area = K + R = 448 + 1,165.5 = $1,613.5 sq. in.
Step-by-step explanation:
Use formulas for area of Kite and area of rhombus.
K = area of Kite
R = area of rhombus
K = (1/2) *(diagonal 1)*(diagonal 2)
R = (1/2)*(diagonal 1)*(diagonal 2)
K = (1/2)*(28 in.)*(32 in.) = 14 * 32 = 448 sq. in.
R = (1/2)*(37 in.)*(63 in.) = 1,165.5 sq. in.
total area = K + R = 448 + 1,165.5 = $1,613.5 sq. in.
To calculate the cost of painting his silo, a farmer must find its height. The farmer uses a cardboard square to line up the top and bottom of the silo as shown in the diagram below. Approximate the height of the silo, rounded to the nearest foot.
By calculating angles and side lengths using trigonometric ratios and the Pythagorean theorem, we determined that the height of the silo (length CE) is approximately 18 feet.
Calculate angle ACD using the tangent trigonometry ratio:
Given AD = 8 feet and DP = 5 feet, we find C using tan(C) = AD/DP, which gives C = arctan(8/5) = 32 degrees.
Calculate angle BCA:
BCA = 90 - 32 = 58 degrees.
Calculate side length AC using the Pythagorean theorem:
Given AB = 5 feet and BC = 8 feet, AC^2 = AB^2 + BC^2, so AC = sqrt(89) = 9.4 feet.
Calculate the height of the silo (length CE) using the cosine ratio:
With AC = 9.4 feet and BCA = 58 degrees, cos(58) = BC/AC = CE/9.4. Solving for CE, we get approximately 17.7 feet.
Therefore, the height of the silo is approximately 18 feet.
Each time you click the "FLIP" button, the
computer will flip four coins at the same time. For
this experiment, "success" is a head.
Flip 1's number of successes:
Flip 2's number of successes:
Flip 3's number of successes:
Flip 4's number of successes:
DONE
Answer:
2
3
0
2
Step-by-step explanation:
Just did intro
Answer:
2
3
0
2
Step-by-step explanation:
just did it on edg
1. 4 and 4
Find the geometric mean between each pair of numbers
Answer:
2
Step-by-step explanation:
i think bc its on the middle but its ben a min since ive done it
Look at the attached screen shot. The population is 2 while the geometric mean is (Xg):4
The quadratic equation 4x2 + 45x + 24 = 0 was solved using the Quadratic Formula, x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a.
One solution is −10.69. What is the other solution? Round to the hundredths place.
0.51
10.69
−1.12
−0.56
Answer:
The other solution is -0.56
Step-by-step explanation:
Quadratic equation :[tex]4x^2 + 45x + 24 = 0[/tex]
General quadratic equation : [tex]ax^2+bx+c=0[/tex]
Om comparing :
a=4
b = 45
c=24
Formula : [tex]x =\frac{-b \pm \sqrt{b^2-4ac}}{2a}[/tex]
Substitute the values in the formula :
[tex]x=\frac{-45 \pm \sqrt{45^2-4(4)(24)}}{2(4)}\\x=\frac{-45 + \sqrt{45^2-4(4)(24)}}{2(4)},\frac{-45 - \sqrt{45^2-4(4)(24)}}{2(4)}\\x=-0.5613,-10.688[/tex]
So, One solution is −10.69.
So, Other solution is −0.56
Hence the other solution is -0.56
The second solution to this equation is −0.56.
Explanation:In the given quadratic equation 4x2 + 45x + 24 = 0, the quadratic formula is used to find the solutions, or roots, of the equation.
This formula is x = [-b ± sqrt(b² - 4ac)] / (2a).
For this specific equation, a is 4, b is 45, and c is 24.
Since it's already given that one root is -10.69, the other root should be obtained by substituting the values into the formula and choosing the alternative sign:
x = [-45 - sqrt(45² - 4*4*24)] / (2*4) this calculation would give −0.56, which is the other solution to the equation.
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The scatter plot below shows the points scored and the points allowed by the bulldogs football teamwork several games . Which association (corrrlation) best describes the data?
Answer: I think it is positive association
Step-by-step explanation:
I am not that sure
The numbers 1 through 10 are put in one bag. The numbers 5 through 14 are put in another bag. When you pick one number from each bag, what is the probability you get the same number?
Answer:
0.06 or 6%
Step-by-step explanation:
Both bags have the numbers 5, 6, 7, 8, 9 and 10. Thus, there are 6 similar number in both bags.
The probability of picking the number 5 in both bags is:
P(5)= 1/10 * 1/10= 1/ 100
It is the same probability of picking the number 6 or 7 or 8 or 9 or 10 in both bags.
P ( 6)= 1/100
P ( 7 ) = 1 /100
P (8)= 1 /100
P ( 9 ) = 1 /100
P ( 10 ) = 1 /100
Consider this right triangle with given measures. A right triangle has a side length of 5 feet and hypotenuse of StartRoot 61 EndRoot feet. What is the length of the missing leg? 6 ft 7 ft StartRoot 51 EndRootft StartRoot 86 EndRootft
Answer:
6ft
Step-by-step explanation:
correct on Edge 2020 :-)
6 feet is the length of the missing leg of the right angles triangle.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
A right triangle has a side length of 5 feet and hypotenuse of √61
We need to find the missing length which is x.
By pythagoras theorem we can find this.
√61²=5²+x²
61=25+x²
Substitute 25 from both sides
61-25=x²
36=x²
x=6
6 feet is the length of the missing leg
Hence, 6 feet is the length of the missing leg of the right angles triangle.
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Please help me . Find the value of x
Answer:
89
Step-by-step explanation:
1
Which is an equation of an asymptote of the hyperbola?
A) y=-3x+8
B) y=3X+10
C) y=-1/3x
D) y=1/3x+2
Answer:
it is 3x+10
Step-by-step explanation:
Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater than 2 feet. In population E, 20 percent of the turtles have a shell length greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length greater than 2 feet. Let pˆD represent the sample proportion for D, and let pˆE represent the sample proportion for E.
What is the probability that pˆD−pˆE is greater than 0.1917?
Answer:
Step-by-step explanation:
The probability is obtained by calculating the z score,
(pˆD−pˆE) - (PD - PE)
0.0914
10.1917-0.1
0.0914 = 1.0029
P(z > 1.0029) = 1 - P(z ≤ 1.0029)
The probability is obtained from the z distribution table,
P(Z > 1.0029) = 1-0.8420 = 0.1580
Which of these values would you most likely see on a U.S. speed limit sign?
A. 150 miles / day
B. 45 miles/hour
C. .08 miles / second
D. 25 feet / second
SUBMIT
h
Answer:
Hi there! The answer is B: 45 Miles/Hour (or mph)
Step-by-step explanation:
When looking at speed signs in the U.S. they always use miles per hour, or MPH. Making it so the other options are incorrect!
Hope this helps!! :)
The most common unit on a U.S. speed limit sign is B. 45 miles/hour. Speed limits are displayed in miles per hour, not in units like miles per day, miles per second, or feet per second.
The value you would most likely see on a U.S. speed limit sign is B. 45 miles/hour. In the U.S., speed limits are almost always shown in miles per hour (mi/h). Therefore, options like 150 miles/day, .08 miles/second, or 25 feet/second are not standard measurements for speed limits on road signs.
To address the conversion exercises, converting 80 km/h to metric units of meters per second (m/s), you use the conversion factor 1 km/h = (1/3.6) m/s. So, 80 km/h equals approximately 22.2 m/s. The conversion to imperial units of miles per hour requires knowing that 1 km is roughly 0.621 miles, making 80 km/h about 49.7 mi/h.
Similarly, 100 km/h equals about 27.8 m/s (not an option here), and in miles per hour, it's approximately 62 mi/h. When converting from metric to imperial or vice versa, it's useful to remember that 1 m/s equals 3.6 km/h and roughly 2.2 mi/h.
The equation of a circle is given below.
(x +1.6)2 + (y +9.8)2 = 26
What is its center?
What is its radius?
If necessary, round your answer to two decimal places.
units
As per the equation of the circle, the center of the circle is (-1.6, -9.8) units, and its radius is approximately 5.10 units.
The standard form of the equation of a circle is (x - h)² + (y - k)² = r², where (h, k) represents the center of the circle, and r is the radius. By comparing the given equation with the standard form, we can easily identify the values of h, k, and r.
Comparing the given equation
=> (x + 1.6)² + (y + 9.8)² = 26
with the standard form, we find that h = -1.6 and k = -9.8.
These values represent the x-coordinate and y-coordinate of the center of the circle, respectively.
To find the radius, we need to take the square root of the constant term on the right side of the equation.
R² = 26
r = √26 ≈ 5.10 (rounded to two decimal places)
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help me plz thank you :D
Answer:
Step-by-step explanation:
[tex]-10 + (-\frac{3}{4})=-10-\frac{3}{4}\\\\[/tex]
[tex]=\frac{-10*4}{1*4}-\frac{3}{4}\\\\=\frac{-40}{4}-\frac{3}{4}\\\\=\frac{-40-3}{4}\\\\=\frac{-43}{4}\\\\=-10\frac{3}{4}[/tex]
Joseph measured his height and found out that he was 5.9 feet tall. There are about 0.304 meters in 1 foot. About how many
meters tall is Joseph?
The height of Joseph in meters is 1.79 m.
What is Height?
Height, altitude, elevation mean vertical distance either between the top and bottom of something or between a base and something above it. Height refers to something measured vertically whether high or low.
Here, Height of Joseph = 5.9 ft.
1 feet = 0.304 m
5.9 ft = 0.304 X 5.9 m.
5.9 ft = 1.79 m.
Thus, the height of Joseph in meters is 1.79 m.
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what is the volume of a cylinder with a radius of 3 and a hight of 6?
Answer:
Around 169.65.
Step-by-step explanation:
The formula is (pi)r^2*h
(pi)3^2*6
(pi)9*6
54(pi)
169.65
Which are the solutions of the equation x^4 - 5x^2 - 36 = 0
Answer:
x = ± 3, x = ± 2i
Step-by-step explanation:
Given
[tex]x^{4}[/tex] - 5x² - 36 = 0
Use the substitution u = x² then the equation is
u² - 5u - 36 = 0 ← in standard form
(u - 9)(u + 4) = 0 ← in factored form
Equate each factor to zero and solve for u
u - 9 = 0 ⇒ u = 9
u + 4 = 0 ⇒ u = - 4
This indicates there will be 2 real roots and 2 complex roots
Change back to find values of x, that is
u = 9 ⇒ x² = 9 ⇒ x = ± [tex]\sqrt{9}[/tex] = ± 3 ← real roots
u = - 4 ⇒ x² = - 4 ⇒ x = ± [tex]\sqrt{-4}[/tex] = ± 2i ← imaginary roots
ABC bookstore sells packages of books that include both new and used books. New books cost $18 and used books cost $9. The bookstore wants to sell packages that have 36 books total, and the store charges $432 for each package. How many new and used books will each be in the package?
Answer:12 new, 24 used
Step-by-step explanation: i think this is right, sorry if not.
12 x 18= 216
9 x 24 = 216
216 + 216 = 432
Evaluate p+(-q)-2 where p = 3 and Q =5
Answer:
3+(-5)-2
Step-by-step explanation:
Answer:
-10
Step-by-step explanation:
which statement is true?
Answer:
A
Step-by-step explanation:
line 1 is perpendicular to line 2 because of 90°.
line 2 is parallel to line 3 because of corresponding angles
need this done please :)
Answer:
y = 11x
Step-by-step explanation:
First we find the slope
m = (y2-y1)/(x2-x1)
= (11-0)/(1-0)
= 11/1
=11
We know the y intercept is 0 ( the y value where x is zero)
We can use the slope intercept form of the equation for a line
y = mx+b where m is the slope and b is the y intercept
y = 11x+0
y = 11x
Multiply and simplify:
(x + 3)2
A) x2 + 6
B) x2 + 9
C) x2 + 6x + 9
D) x2 + 9x + 6
Answer:
[tex] {x}^{2} + 6x + 9[/tex]
Answer C is correct.Step-by-step explanation:
[tex](x + 3) ^{2} \\ (x + 3)(x + 3) \\ x(x + 3) + 3(x + 3) \\ {x}^{2} + 3x + 3x + 9 \\ {x}^{2} + 6x + 9[/tex]
The expression [tex](x+3)^2[/tex] on multiplication and simplification becomes [tex]x^2+6x+9[/tex]. So, option c) is correct.
Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
Given, expression can be solved by following some basic steps as follows:
Firstly, solve the brackets.
Then perform multiplication and addition.
[tex](x+3)^2=(x+3)(x+3)=x\times (x+3)+ 3\times (x+3)\\(x+3)2=x^2+3x+3x+9\\(x+3)^2=x^2+6x+9[/tex]
So, on multiplication and simplification (x+3)2 becomes [tex]x^2+6x+9[/tex]. So, option c) is correct.
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FOR EASY BRAINLIEST BRAINLIEST!! Do it With a drawn picture!
Answer:
Step-by-step explanation:
-q/7>-1
Help plz Step-by-step
Answer:
q < 7
Step-by-step explanation:
Given:
[tex]\frac{-q}{7} > -1[/tex]
Required:
Find the value of q.
First, multiply both sides by 7
[tex]7 * \frac{-q}{7} > -1 * 7[/tex]
-q > -7
Then, multiply both sides by -1
q < 7
Note that the sign of the inequality changed.
When multiplying or dividing an inequality by a number less than 0 (in other words, a negative numbers), the sign of the inequality will change.
Hence, the solution to the expression above is
q < 7
What is the answer? I’m not sure about this one
Answer: Choice A) 3n^2
A monomial has exactly one term. So the answer is between choices A and C based on this fact alone. We can rule out choice C as this has a coefficient of 2. Choice A has a coefficient of 3 and an exponent of 2 (so its degree 2). This is a quadratic monomial.
Find all real square roots of 100
Answer:
square root of 100 is 10
Step-by-step explanation:
The real roots of 100 are 10 and -10.
What are roots?The root of a number x is another number, which, when multiplied by itself a given number of times, equals x.
Roots of 100 = [tex]\sqrt{100}[/tex] = ± 10
Hence, The real roots of 100 are 10 and -10.
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Which term in this expression is a constant?
14x − 10 + 6y − x
A) 14x
B) 6y
C) x
D) 10
Answer:
B
Step-by-step explanation:
i jst did it