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grin007 [14]
3 years ago
12

The difference between a and b is 12. The number a is 5 more than 3 times the number b. Which of the following pairs of equation

s could be used to find the values of aand b?
Mathematics
1 answer:
klio [65]3 years ago
6 0

Answer:

a+b=12

3b+5=a

Step-by-step explanation:

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Find the indicated limit, if it exists.(7 points)
Alecsey [184]

Answer:

7

Step-by-step explanation:

The left hand limit is when we approach zero from left. We use the function on this domain in finding the limit.

\lim_{x \to 0^-} f(x)=7-x^2

\lim_{x \to 0^-} f(x)=7-(0)^2=7

The right hand limit is

\lim_{x \to 0^+} f(x)=10x+7

\lim_{x \to 0^+} f(x)=10(0)+7=7

Since the left hand limit equals the right hand limit;

\lim_{x \to 0} f(x)=7

7 0
3 years ago
A special box designed to hold an antique artifact is shaped like a triangular prism. The surface area of the box is 421.2 squar
Oksanka [162]
The area of the base is:
 A = root ((s-a) * (s-b) * (s-c) * (s))
 Where,
 a, b, c: sides of the triangle
 s = (a + b + c) / 2
 We have then:
 s = (9 + 9 + 9) / 2
 s = 13.5
 A = root ((13.5-9) * (13.5-9) * (13.5-9) * (13.5))
 A = 35.07
 Then, the surface area of the prism is:
 S.A = 2 * A + 9h + 9h + 9h
 Where,
 h: height of the prism:
 Substituting values:
 421.2 = 2 * (35.07) + 9h + 9h + 9h
 Clearing h:
 27h = (421.2 - 2 * (35.07))
 h = (421.2 - 2 * (35.07)) / (27)
 h = 13
 Answer:
 
the height of the box is:
 
h = 13 inches
8 0
3 years ago
When two is subtracted from one fourth of a number the result is 17 find the number
lisov135 [29]
76

17+2=19
19×4=76

I honestly don't know, cause I hate math.
7 0
4 years ago
Circle numbers (1,2,3), draw a box around variables (x,y,z) and underline & identify operation key words for each equation.
swat32

Answer:

test

Step-by-step explanation:

this is a test

6 0
3 years ago
PLEASE HELP!!!!!!!!!!There are 12 boys and 8 girls in a class.
netineya [11]

Answer:

12:10 or 6:5

Step-by-step explanation:

If 2 more girls join, the ratio will be 12:10 or 6:5.

8 0
3 years ago
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