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alisha [4.7K]
3 years ago
5

A rectangle is

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

21 by 3

Step-by-step explanation:

3x7=21

21+21=42

3+3=6

42+6=48

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What two kinds of exponents are not allowed to be in a polynomial?
Gekata [30.6K]

Answer:

The short answer is that polynomials cannot contain the following: division by a variable, negative exponents, fractional exponents, or radicals.

Step-by-step explanation:

The short answer is that polynomials cannot contain the following: division by a variable, negative exponents, fractional exponents, or radicals.

7 0
2 years ago
For the first four days of a five day vacation, the mean temperature was 80 degrees. What must the temperature be on the fifth d
V125BC [204]

Answer:

The 5th day must be 90

Step-by-step explanation:

The first 4 days averaged out to 80

You can find their total just by multiplying by 4. That won't tell you the exact values, but it will tell you their total when you add the 4 of them together.

80*4 = 320

Now you need to add another day into the mix. Call it x

320 + x

Now there are 5 days, not 4, and the new total is 82.

(320 + x) / 5 = 82          Multiply both sides by 5

5*(320 + x) / 5 = 82 *5

320 + x = 410                 Subtract 320

-320        -320

x = 90

6 0
3 years ago
4x+5y=20 in point slope form
Anna35 [415]

Answer:

y = -4/5x - 4

Step-by-step explanation:

y - y1 = m(x-x1)

4x + 5y = 20 ( subtract 4x on both sides)

5y = -4x + 20 (divide by 5 on each side)

y = -4/5x + 4

So we know one point is (0,4) y-intercept

now plug in (0,4)

y - 4 = -4/5(x-0) (Distribute -4/5 to x - 0)

y - 4 = -4/5x (now add 4 on each side)

y = -4/5x - 4

4 0
2 years ago
Read 2 more answers
1. Laura was carrying all of the ice cream cups home when she
seropon [69]

I can tell you the answer if you can tell me how much she was carrying before she dropped nine of them

4 0
2 years ago
Something added by -8 equals 20
LiRa [457]

Answer:

28 is added by -8 equals 20

Step-by-step explanation:

The equation to calculate something added by -8 equals 20 is as follows:

x-8 = 20

x = 20+8

x = 28

28 is added by -8 equals 20

8 0
3 years ago
Read 2 more answers
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