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3 years ago

Could someone possibly help me with this question?

Mathematics

1 answer:

MrRa [10]3 years ago

8 0

Answer:

See explanation

Step-by-step explanation:

Statement Reason

1. the diagram shows segment AC with point B on this segment, then

$AB+BC=AC$ Segment addition postulate

2. Given $AB=2x,\ BC=6x+8,\ AC=32,$ then

$2x+6x+8=32$ Substitution property

3. Simplify the equation as follows

$8x+8=32$ Combine like terms

4. Subtract 8 from both sides

$8x+8-8=32-8\\ \\8x=24$ Subtraction property of equality

5. Divide by 8:

$x=3$ Division property of equality

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Casey bought sandwiches and bags of chips. Each sandwich cost three times asmuch as a bag of chips. She bought 5 sandwiches for

Lerok [7]

Answer:

Casey Bought 6 bags of chips

Step-by-step explanation:

If each sandwich costs 3 times the amount of a bag of chips and the sandwich is 6 dollars, the chips are 2 dollars. Casey bought 5 sandwiches and spent $30 dollars on sandwiches. Since the total was $42 dollars you have $12 dollars left to get your total of $42. 2x6 = 12 so therefore Casey bought 6 bags of chips.

5 0

3 years ago

Find f(-3) when f(x) = -x²+1

JulsSmile [24]

Answer:

3x²- 1

Step-by-step explanation:

f(-3) when f(x) = -x²+1

(-x²+1) × -3

3x²- 1

3 0

3 years ago

Triangle ABC is being dilated with the center of dilation at the origin. The image of C, point C' has coordinates of (7.2, 3.6).

MAXImum [283]

General Idea:

When we are given a point P(x, y) centered at origin with a scale factor of k, then the dilated point will be given by P' (kx, ky)

Applying the concept:

In the diagram given, the coordinate of C is (6, 3). Triangle ABC is being dilated with the center of dilation at the origin. The image of C, point C' has coordinates of (7.2, 3.6).

If C (x, y) centered at origin with a scale factor of k, then the dilated point will be given by C' (kx, ky)

We know $x = 6$ & $kx = 7.2$

Substituting 6 for x in the equation $kx = 7.2$ , we get $6k = 7.2$ .

Dividing 6 on both sides $\frac{6k}{6}=\frac{7.2}{6}$

Simplifying fractions on both sides $k=1.2$

Point A from the diagram is (-3, 3)

x-coordinate of A' = $kx=1.2 * -3 = -3.6$

y-coordinate of A' = $ky =1.2*3=3.6$

Point A' is given by (-3.6, 3.6)

Conclusion:

Scale factor of dilation is 1.2

The coordinates of point A' is (-3.6, 3.6)

6 0

3 years ago

Read 2 more answers

Can anyone help me out on this

Rashid [163]

Answer: y=x+60

So y=mx+b is slope intercept form

y=x+60

m=1/1 because we go equally up as we go right so just put x

b=60 because we start at 60

Hope this helps

4 0

3 years ago

Alex tried to find the lateral area of the pyramid. FIND HIS ERROR AND CORRECT IT.

sweet-ann [11.9K]

Answer:

His error is multiplying by 4 sides as he thought it was total surface not lateral surface area- the final answer is 12

Step-by-step explanation:

He should have multiplied it by 3, because the 3 sides- not including the base- is what lateral surface area is. He originally did total surface area not lateral surface area so each sides area is 4m squared then you just multiply it by 3 and its 12

5 0

3 years ago

Read 2 more answers