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Mila [183]
3 years ago
7

30=7r+5 what’s does r stand for

Mathematics
2 answers:
harkovskaia [24]3 years ago
7 0

Answer:

An unknown variable

Step-by-step explanation:

r is an unknown variable -> the equation is used to solve for it.

kodGreya [7K]3 years ago
3 0

Answer:

In math, r usually stands for radius.

Step-by-step explanation:

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3 years ago
Without computing, determine which number is greater, [(-4)^4]^5 or -[(4^12)^3 Explain your reasoning.
Strike441 [17]

Answer:

I think [(-4)^4]^5, but I'm not completely sure

Step-by-step explanation:

1.0995116e+12 greater than -4.7223665e+21

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3 years ago
7a-5b+4<br> a=2, b=3 and c=-6
KengaRu [80]

Answer: 3

Step-by-step explanation:

the statement given us:

7a-5b+4

a= 2

b= 3

so we have:

7*(2)-5*(3)+4

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the answer is 3

6 0
3 years ago
The base of an isosceles triangle is 9 and its perimeter 49. The base of a similar isosceles triangle is 14. What is the missing
ratelena [41]

Answer: 76.2

Step-by-step explanation:

Perimetar of isiscales triangle is calculated using  equation;

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b=9

P=49

lets find sides of triangle.

P-b=2a

a=(P-b)/2

a=49-9/2

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If another triangle is similar that means that his base and sides are proportional to first triangle.

Base of first trianlge b₁=9

Base of similar triangle is b₂=14

use proportion to find out side of similar triangle:

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a₁:a₂=9:14

a₁=20

20: a₂=9:14

a₂=14*20/9=280/9=31.1

Perimetar of second triangle is:

P₂=b₂+2a₂

P₂=14+2*31.1=14+62.2=76.2

3 0
3 years ago
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