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antiseptic1488 [7]
3 years ago
13

What is equivlent to 15x-20

Mathematics
1 answer:
Tanzania [10]3 years ago
8 0

Answer:

5(3x - 4)

Step-by-step explanation:

5(3x - 4)

use the distributive property

15x - 20

so its correct

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A bottlenose dolphin is 10 feet below sea level. Then it begins to dive at a rate of 9 feet per second. What is the equation of
a_sh-v [17]
Y = -9x - 10
The dolphin is diving 9 feet per second so the rate of change is -9.
It's also 10 feet below sea level which makes the y-intercept -10
Hope this helped!
7 0
3 years ago
Read 2 more answers
Really needed !!!!!! Please
Ivahew [28]
PRT means multiply p, r, and t
2000*0.08*2=320
8 0
3 years ago
Read 2 more answers
Help pleaseeeeeeee.
Dmitry_Shevchenko [17]
Answer: 11x

---------------------------------------------------
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Explanation:

Let L be the length of rectangle B
There are two copies of L (along the top and bottom of the rectangle). The vertical pairs of sides are both 7x each.

For the triangle, we have three sides of 12x since this is an equilateral triangle. All three sides are congruent for any equilateral triangle.

The perimeter of the triangle is
P = s1+s2+s3
P = 12x+12x+12x
P = 36x

The perimeter of the rectangle is 
P = 2*L+2*W
P = 2L+2*7x
P = 2L+14x

Since both perimeters are the same, this means 
perimeter of triangle = perimeter of rectangle
36x = 2L+14x
36x-14x = 2L+14x-14x
22x = 2L
2L = 22x
2L/2 = 22x/2
L = 11x

So the length of the rectangle, in terms of x, is 11x. This is the final answer.

Note: if we knew the value of x, then we could find the numeric value of the length for the rectangle. But since we don't know x, we leave it as 11x.

7 0
3 years ago
In order to study the color preferences of people in his town, Andrew samples the population by dividing the residents by region
emmainna [20.7K]

Answer:

Cluster sampling

Step-by-step explanation:

Cluster sampling refers to the sampling that is used in market analysis. It is used when a researcher can not obtain information as a whole for the population but may obtain information through the groups or clusters

In the given case since andrew divides the residents through regions so this reflected the cluster sampling method

3 0
3 years ago
Round to the whole number: 46.94= and 7.09=. What is 10/40=.
frez [133]
46.94 ≈ 47

7.09 ≈ 7

10/40 = (10*1)/(10*4) = (10/10)*(1/4) = 1/4
6 0
3 years ago
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