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Sunny_sXe [5.5K]
3 years ago
9

I need help with these...

Mathematics
1 answer:
DaniilM [7]3 years ago
7 0
All you have to do is do the distributive property. So, for the first one you would do 5 times x which equals 5x and then you would do 5 times 4 which equals twenty. All you are left with is the addition sign. Your full equation now would be 5x+20
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A dilation with a scale factor of 2 is applied to the image below. What is the length of the new image?
STatiana [176]

A dilation of factor k multiplies all lengths by k.

So, in your case, all lengths double. The new length is 4.

8 0
3 years ago
What is the difference between −5x+7 and 3x−2?
julia-pushkina [17]

Answer:

-5x+7-(3x-2)

=-5x+7-3x+2

=-8x+9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Jeremy and April are braiding a rug. Jeremy makes 4 braids every 11 minutes. April makes 7 braids every 17 minutes. Who is braid
nevsk [136]
April would. She braids more, but at a slower pace. However, when they reach the 187 minute mark, April would have braided 77 times. Jeremy would have braided 68 times.
4 0
3 years ago
Click here What is the average rate of change for this exponential function for the interval from x=2 to x = 4? 15 10 -5 5 10 O
Triss [41]

Answer:

c. 6

Step-by-step explanation:

Given

See attachment for graph

Required

Average rate of change

This is calculated as:

Rate = \frac{f(b) - f(a)}{b - a}

Where

(a,b) = (2,4)

So, we have:

Rate = \frac{f(4) - f(2)}{4 - 2}

Rate = \frac{f(4) - f(2)}{2}

Using the attached graph, we have:

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f(4) = 16

So, we have:

Rate = \frac{16- 4}{2}

Rate = \frac{12}{2}

Rate = 6

4 0
2 years ago
The first term of an arithmetic sequence is -2. The eighth term of the sequence is 26. What is the common difference of the arit
andreev551 [17]

Answer:

d = 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₁ = - 2 and a₈ = 26 , then

- 2 + 7d = 26 ( add 2 to both sides (

7d = 28 ( divide both sides by 7 )

d = 4

8 0
3 years ago
Read 2 more answers
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