can someone answer this with work :)

Answer:

  |-5i+10j| = 5√5 ≈ 11.18

  ∠(-5i+10j) ≈ 116.57°

Step-by-step explanation:

The magnitude is given by the Pythagorean theorem:

  |-5i+10j| = √((-5)² +10²) = √125 = 5√5

The direction is found using the arctangent function. The angle is a second-quadrant angle.

  ∠(-5i+10j) = arctan(10/-5) ≈ 180° -63.43° = 116.57°

Answer:

The correct answer is option C that is graph X.

Step-by-step explanation:

Given : 1 sack lunch has 3 sandwiches

x axis = Number of sack lunches

y axis = Number of sandwiches

The coordinate from the given data will be: (1,3)

So, from the given graphs the graph with coordinate point (1,3) is correct. It will also show change in number of sandwiches with respect to change in number of sack lunches.

Answer:

C = X

Step-by-step explanation:

Answer:

20 TV need to be sold to qualify for the trip.

Step-by-step explanation:

Given: Sale price of each TV is $250

           Sales target to qualify for trip is $5000.

As given, T represent TV sold.

Now, finding the number of TV sold to qualify for the trip.

Forming an inequality for the number of TV sold to qualify for trip.

We know, Total amount of TV sold= [tex]Selling\ price\ of\ each\ TV \times Number\ of\ TV\ sold[/tex]

∴ To qualify for trip: [tex]250T\geq 5000[/tex]

solving it by dividing both side by 250

∴[tex]T\geq \frac{5000}{250}[/tex]

[tex]T\geq 20\ TV[/tex]

Hence, Angelica need to sell minimum 20 TV to qualify for the trip.

Given expression: 21 + (36 + 0 + 19)

Using identity property of addition: a + 0 = a

21 + (36 + 0 + 19) = 21 + (36 + 19)

Using commutative property of addition: a + b = b + a

21 + (36 + 19) = 21 + (19 + 36)

Using associative property of addition: a + (b + c) = (a + b) + c

21 + (19 + 36) = (21 + 19) + 36

Now, add two numbers inside the bracket.

(21 + 19) + 36 = 40 + 36

Using closure property of addition: a + b = c any number.            

40 + 36 = 76

Hence 21 + (36 + 0 + 19) = 76.

Answer:

0.64

Step-by-step explanation:

Divide and multiply by 100.

Answer:

C

Step-by-step explanation:

Haley read five more than half as many books as her brother did last summer.

1/2b + 5 = 7 (the amount Haley read)

b = the amount Haley's brother read

Answer:

[tex]x^{2} +14x=0[/tex]

Step-by-step explanation:

Given:

Given root is

[tex]x=-14,\ 0[/tex]

Now we need to find the quadratic equation for given roots.

Solution:

The given roots are -14 and 0.

So, the sum of the roots.

[tex]\alpha +\beta = -14 + 0[/tex]

[tex]\alpha +\beta = -14[/tex]

Product of the given roots

[tex]\alpha\times \beta = -14\times 0[/tex]

[tex]\alpha\times \beta = 0[/tex]

Therefore, the required quadratic equation is.

[tex]x^{2} -(\alpha +\beta )x+\alpha\times \beta=0[/tex] -------------------(1)

Now we substitute [tex](\alpha +\beta )[/tex] and [tex](\alpha\times \beta)[/tex] in equation 1.

[tex]x^{2} -(-14)x+0=0[/tex]

[tex]x^{2} +14x=0[/tex]

Therefore, the quadratic equation for the given root is. [tex]x^{2} +14x=0[/tex]

Answer:

[tex]x=-3[/tex]

Step-by-step explanation:

Given the equation

[tex]7=|3x+9|+7[/tex]

1. Use Addition property of equality, add -7 to both sides:

[tex]7-7=|3x+9|+7-7\\ \\0=|3x+9|[/tex]

2. The absolute value of the number is 0 if and only if the number is 0, so

[tex]3x+9=0[/tex]

3. Use Addition property of equality, add -9 to both sides:

[tex]3x+9-9=0-9\\ \\3x=-9[/tex]

4. Use Division property of equality, divide both sides by 3:

[tex]\dfrac{3x}{3}=\dfrac{-9}{3}\\ \\x=-3[/tex]

The solution is x = -3.

To solve the equation 7 = |3x + 9| + 7, let us follow these steps:

First, we simplify absolute value expression:

7 = |3x + 9| + 7

0 = |3x + 9|

The absolute value of a number is zero only when the number itself is zero. So, we set the expression inside the absolute value equal to zero:

3x + 9 = 0

3x = -9

x = -3

The solution to the equation is x = -3.

Answer:

(4,-2)

Step-by-step explanation:

-y = 1/2(4)

-y = 2

divide both sides by -1

y = -2

Answer:

Step-by-step explanation:

A) bisect an angle

Answer:

10 apple

Step-by-step explanation:

4 + 6 = 10

Answer:

7850 square units

Step-by-step explanation:

According to the question;

We are required to find the area of the circle;

Perimeter of a circle = pi × D or 2 pi r

Therefore;

Rearranging the formula;

D = Perimeter ÷ pi

Taking pi to be 3.14

Then;

Diameter = 314 units ÷ 3.14

              = 100 units

But, radius = Diameter ÷ 2

                  = 100 units ÷ 2

                  = 50 units

We also need to know how we calculate the area of a circle;

Area of a circle = pi×r²

Therefore;

Taking pi as 3.14

Then, Area = 3.14 × 50²

                   = 7850 square units

Thus, the area of the circle is 7850 square units

Answer:

The solution is (0 ,0)

Step-by-step explanation:

–10x – y = 0   (1)

 10x – 4y = 0 (2)

solving by elimination:

(1)+(2)⇒ -5y=0 ⇒ y=0

if we replace y by 0 in the first equation we will get :

–10x – 0 = 0 ⇒ x=0

Answer:

Investing vs. Saving

Step-by-step explanation:

SAVING

Investing

Learn more about saving and investing here :

https://brainly.com/question/6661958

Final answer:

The y-intercept of the equation y = 2x + 10 is 10, which means the ordered pair for the y-intercept is (0, 10).

Explanation:

The y-intercept of the line given by the equation y = 2x + 10 can be found by looking at the equation in its slope-intercept form, which is y = mx + b. Here m represents the slope of the line, and b represents the y-intercept. Since the y-intercept is the value of y when x is zero, we can determine that the y-intercept for this line is the constant term in the equation, 10. Therefore, the y-intercept as an ordered pair is (0, 10).

Answer:

22

Step-by-step explanation:

8 - (-14)

two subtraction signs become addition

8 + 14

add

22

Answer:

First and Last Option.

Step-by-step explanation:

Took the test!

Keshawn could include the following statements in his explanation:

The domain of both functions is all real numbers.

The range of f(x) is y > 0.

The range of g(x) is y > 0.

Options A, D, and E are the correct answer.

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

f(x) = 5x

g(x) = 5

The domain of a function is the set of all possible input values.

The range of a function is the set of all possible output values.

Now,

For both of these functions, the domain is all real numbers.

This is because we can plug in any value for x and get a valid output.

For example:

If we plug in x = 0, we get.

f(0) = 5(0) = 0

g(0) = 5

For both functions, we get a valid output, even though they are different. We can do this for any real number value of x.

Now,

For f(x) = 5x, the range is y > 0.

This is because the function produces positive output values for any positive input value of x, and negative output values for any negative input value of x.

The only value for which f(x) produces a zero output is x = 0, but this is not included in the range since it is not greater than zero.

For g(x) = 5,

The range is also y > 0.

This is because the function produces a constant output of 5 for any value of x. Since 5 is greater than zero, the range of g(x) is also y > 0.

Thus,

The domain of both functions is all real numbers.

The range of f(x) is y > 0.

The range of g(x) is y > 0.

Learn more about functions here:

https://brainly.com/question/28533782

#SPJ7

Answer:

its 13

Step-by-step explanation:

take the highest and lowest answer and subtract them

if this helped plz give brainlest

Answer:

[tex]f(\frac{2}{9})=1[/tex]

Step-by-step explanation:

we have

[tex]f(x)=3x+\frac{1}{3}[/tex]

we know that

f(2/9) is the value of the function f(x) when the value of x is equal to 2/9

so

For x=2/9

substitute the value of x in the function and solve for f(x)

[tex]f(x)=3(\frac{2}{9})+\frac{1}{3}[/tex]

[tex]f(x)=\frac{2}{3}+\frac{1}{3}[/tex]

[tex]f(x)=\frac{3}{3}[/tex]

[tex]f(x)=1[/tex]

therefore

[tex]f(\frac{2}{9})=1[/tex]

Answer:

Second option: On a coordinate plane, rectangle A'B'C'D' prime has points [tex](-4,4),(12,4),(12,-4),(-4,-4)[/tex]

(See the graph attached)

Step-by-step explanation:

For this exercise it is importnat to know that a Dilation is defined as a transformation in which the Image (The figure obtained after the transformation) has the same shape as the Pre-Image (which is the original figure before the transformation), but they have different sizes.

In this case, you know that the vertices of the rectangle ABCD ( The Pre-Image)  are the following:

[tex]A(-1,1)\\\\B(3,1)\\\\C(3,-1)\\\\D(-1,-1)[/tex]

Therefore, to find the vertices of the rectangle A'B'C'D' (The Image)  that results of dilating the rectangle ABCD by a factor of 4 about the origin, you need to multiply the coordinates of each original vertex by 4. Then, you get:

[tex]A'=((-1)(4),(1)(4))=(-4,4)\\\\B'=((3)(4),(1)(4))=(12,4)\\\\C'=((3)(4),(-1)(4))=(12,-4)\\\\D'=((-1)(4),(-1)(4))=(-4,-4)[/tex]

Finally, knowing those points, you can identify that the graph that shows the result of that Dilation, is the one attached.

Answer:

answer A

Step-by-step explanation:

Answer:

A bag has 2 red marbles, 1 blue marble and 4 gold marbles. What is the probability of drawing two gold marbles, if the first marble is replaced after it is drawn?  The answer is 16/49

Step-by-step explanation:

Answer:

12x+32

Step-by-step explanation:

6(2x+5)+2

12x+30+2

12x+32

Answer:

90.7

Step-by-step explanation:

90.69

where 6 is tenth place

and     9 is hundredth place to the right of the decimal

the rule for decimals is that we look for the hundredth digit, if it is equal to or greater than 5 then 1 is added to the tenth place digit. and remove all the digits to the right

here 9>5

so 6+1=7

we write

90.7 ANSWER

Answer:

Parallelogram

Rhombus

Square

Rectangle

Step-by-step explanation:

The quadrilateral ABCD has 2 sets of parallel sides. That is all I know about it.

Now, we have to choose from the options that are the classifications for the quadrilateral.

The quadrilateral ABCD can be a parallelogram with opposite sides are equal and no angles are 90°.

The quadrilateral ABCD can be a rhombus with all sides are equal and no angles are 90°.

The quadrilateral ABCD can be a square with all sides are equal and all angles are 90°.

The quadrilateral ABCD can be a rectangle with opposite sides are equal and all angles are 90°. (Answer)

Answer:

Area of triangle = 64 cm²

Step-by-step explanation:

Base, b = 16 cm

Height, h = 12 cm

Formula of area of triangle:-

[tex]A=\dfrac{1}{2}\times b\times h[/tex]

[tex]A=\dfrac{1}{2}\times 16\times 8[/tex]

[tex]A=64[/tex]

Hence, the area of triangle is 64 cm²

Answer:

Area of triangle = 64 cm²

Step-by-step explanation:

Answer:

35 bottles

Step-by-step explanation:

455

- 175 = 280

280 ÷ 8= 35

Proof

8 x 30= 240

8 × 5= 40

240 + 40= 280

Answer:

No

Step-by-step explanation:

No, only if the triangle is a right triangle.

Final answer:

No, the centroid of a triangle is not necessarily the center of the circle circumscribing it. The centroid and circumcenter are distinct points that coincide only in equilateral triangles.

Explanation:

No, the centroid of a triangle is not necessarily the center of the circle circumscribing it. The centroid is the point of intersection of the medians of the triangle, which are the lines connecting each vertex to the midpoint of the opposite side. On the other hand, the circumcenter of a triangle is the center of the circle that passes through all three vertices of the triangle.

In some cases, the centroid and circumcenter might coincide, but this happens only when the triangle is equilateral. In all other cases, the centroid and circumcenter are distinct points.

For example, an equilateral triangle has its centroid and circumcenter at the same point. However, in an isosceles triangle, the centroid will lie on the line segment connecting the midpoint of the base to the opposite vertex, while the circumcenter will lie on the perpendicular bisector of the base.

Answer:I would say at least 8:05

Step-by-step explanation:I’m probably doing this wrong but... if you take two away from the seven and add it to 7:58 you get 8:00. But you still have the remaining 5 minutes so you simply add it to the 5:00 and get 5:05.

Final answer:

The expanded form of 4(7x+3) is achieved by using the distributive property, resulting in the expression 28x + 12.

Explanation:

The expanded form of the algebraic expression 4(7x+3) involves distributing the 4 to both terms inside the parentheses. This is accomplished using the distributive property of multiplication over addition. The steps are as follows:

Multiply 4 by 7x to get 28x.

Multiply 4 by 3 to get 12.

Combine these products to express the expanded form.

Therefore, the expanded form of 4(7x+3) is 28x + 12.

As for evaluating complex expressions such as 2+x(−7+x(2+x(−8+x(−2+3x)))), you would begin by substituting the value of x and simplifying from the innermost parentheses outwards. However, this is a different exercise than simply expanding an algebraic expression.