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ValentinkaMS [17]
3 years ago
8

Plz help you will get extra points if you explain

Mathematics
1 answer:
Tasya [4]3 years ago
7 0
The formula for it is A=2(w*l+h*l+h*w) 
So now to put values in A=2(4*5+7*5+7*4)
Now put it in a calculator and you get 166
I hope I helped! ♥
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Study the table representing the price of different amounts of apples, in pounds, and then complete the sentences. The constant
stellarik [79]

Answer: the first part is 1.25. The second part is y=1.25x

Step-by-step explanation: edge 2021

4 0
2 years ago
6.5 x 1/9 please help
hjlf

Answer:

13/18

Step-by-step explanation:

  • 6.5 · 1/9 = 6 5/10 · 1/9
  • 6 5/10 · 1/9 = 6 1/2 · 1/9
  • 6 1/2 · 1/9 = 13/2 · 1/9
  • 13/2 · 1/9 = 13/18

Therefore, 6.5 · 1/9 = 13/18.

7 0
2 years ago
One number is 12 more than another number. If one half of the smaller number equals one third of the larger number, what is the
NikAS [45]

Answer:

x=24

y=36

Step-by-step explanation:

x=smaller number

y=larger number

x+12=y         x/2=y/3

                   x/2=(x+12)/3

cross multiply and distribute

                   3x=2x+24

                   x=24

24+12=y

y=36

5 0
3 years ago
There are two values of a for which the equation 5x2+ax+7x+5=0 has only one solution for x. What is the sum of those values of a
JulsSmile [24]

Answer:

-14

Step-by-step explanation:

First of all, we know that 5x^2+ ax+7x +5=0 only has one root. That means that b^2 - 4ac=0, and we can use this to find the discriminant, ax + 7x.

Now, if we simplified 5x^2+ ax+7x +5=0, by dividing it all by 5, it would be x^2+(a+7)/5x + 1 = 0.

After, we can plug what we know into the formula, b^2 - 4ac=0. It would be:

(a+7)^2 / 25 - 4 = 0

(a+7)^2 / 25 = 4

(a+7)^2 = 100

Since this is a square root, a+7 can be both negative or positive.

a+7= 10, or a+7 = -10

a=3, or a=-17

The question asks for the sum of a, which is 3 + (-17) = -14

Therefore, the answer is -14.

:) have fun with your rsm problems, assuming you got this from the portal.

7 0
3 years ago
20 The table shows the linear relationship between the balance of a student's
Pavlova-9 [17]

Answer:7

Step-by-step explanation:it’s 7

7 0
2 years ago
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