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3 years ago

1. Show your work to simplify the expression 0.5(8a +6b) a + 4b

Mathematics

2 answers:

Anna11 [10]3 years ago

6 0

Answer:

Using distribute property

0.5(8a)(a) + 0.5(6b)(a) + 4b

4a^2 + 3ab + 4b

Step-by-step explanation:

ankoles [38]3 years ago

5 0

Answer:

4a+3ab +4b

Step-by-step explanation:

0.5(8a+6b) a +4b

4a +3b*a +4b

4a+3ab +4b

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A student must have at least 10 hours of instructor-assisted driving time to pass

Solnce55 [7]

Answer:

t ≥ 10

Step-by-step explanation:

Since the student needs at least 10 hours of driving time, they need greater than or equal to 10 hours to pass.

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3 years ago

The mean of three numbers is 4. Two of the numbers are shown below. What is the missing number? 1, 9, ?

ludmilkaskok [199]

The missing number is 2.

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3 years ago

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Tom makes $216.80 in 4 days. how much does he make in 2 days

V125BC [204]

Answer:

$108.4

Step-by-step explanation:

Divide $216.8 by 4 to find the amount of money Tom makes in 1 day:

== $54.2 per day

We are looking for money Tom makes in TWO days, so multiply the value we just found by 2:

$54.2*2

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3 years ago

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A. What are the coordinates of R’ if R (-2, 7) is dilated around the origin with k=3?

Sergio [31]

A: The coordinates of the point R' are (- 6, 21).

B: The coordinates of the point T' are (1, 3).

<h3>How to generate new points by definition of dilation</h3>

In this question we must make use of rigid transformations to find the location of new points, rigid transformations are transformations used in geometric loci such that Euclidean distance is conserved. In this case, we need to use a kind of rigid transformation known as dilation, which is defined below:

P'(x, y) = O(x, y) + k · [P(x, y) - O(x, y)] (1)

Where:

O(x, y) - Center of dilation
k - Dilation factor
P(x, y) - Original point
P'(x, y) - Resulting point

Part A - If we know that O(x, y) = (0, 0), R(x, y) = (- 2, 7) and k = 3, then the coordinates of point R' are:

R'(x, y) = (0, 0) + 3 · [(- 2, 7) - (0, 0)]

R'(x, y) = (- 6, 21)

Part B - If we know that O(x, y) = (- 2, 7), T(x, y) = (4, - 1) and k = 1/2, then the coordinates of point T' are:

T'(x, y) = (- 2, 7) + (1 / 2) · [(4, - 1) - (- 2, 7)]

T'(x, y) = (- 2, 7) + (1 / 2) · (6, - 8)

T'(x, y) = (- 2, 7) + (3, - 4)

T'(x, y) = (1, 3)

To learn more on dilations: brainly.com/question/13176891

#SPJ1

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2 years ago

In the following estimated regression equation Ŷ = b0 + b1x, a. b1 is the intercept. b. b1x is the slope. c. b1 is the slope. d.

Ahat [919]

Answer:

Option C) $b_1$ is the slope

Step-by-step explanation:

We are given the following in the question:

The estimated regression equation is:

$\hat{Y} = b_0 + b_1x$

where $\hat{Y}$ is the dependent variable and need to be predicted and x is the independent variable and is the predictor.

If we compare this regression equation to slope intercept form of straight line,

$y = mx + c$

Here, m is the slope if the line and c is the y-intercept hat is the value of y when x is zero.

Comparing the regression equation to the slope intercept form, we get,

Slope, m =

$b_1$

Intercept, c =

$b_0$

Thus, the correct answer is:

Option C) $b_1$ is the slope

5 0

3 years ago

1. Show your work to simplify the expression 0.5(8a +6b) a + 4b​

1. Show your work to simplify the expression 0.5(8a +6b) a + 4b