3 years ago

How is an easy way to solve proportions with variables on both sides

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

m＋11/11=4m-2/33

m＋11(33)=4m-2(11)

33m＋363=44m-22

33m-44m=-22-363

-11m=-385

m=35

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3. Find f[h(a+4)], given the functions below. *

mote1985 [20]

Answer:

C 5a^2 +70a +240

Step-by-step explanation:

We have given these following functions:

$f(x) = 5x, g(x) = -2x + 1, h(x) = x^2 + 6x + 8$

h(a+4)

This function is:

$h(a+4) = (a+4)^2 + 6(a + 4) + 8$

$h(a+4) = a^2 + 8a + 16 + 6a + 24 + 8$

$h(a+4) = a^2 + 14a + 48$

f[h(a+4)]

$f(x) = 5x$

Thus

$f(h(a+4)) = f(a^2+14a+48) = 5(a^2 + 14a + 48) = 5a^2 + 70a + 240$

The correct answer is given by option C.

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3 years ago

The mean temperature for the first 4 days in January was 1°C.

soldier1979 [14.2K]

-4 degrees I think.

5 0

3 years ago

Use an addition or subtraction formula to find the exact value of the expression, as demonstrated in example 1. tan(105°)

strojnjashka [21]

Use an addition or subtraction formula to find the exact value of the expression, as demonstrated in example 1. tan(105°)

7 0

3 years ago

One positive integer is 5 times another positive integer and their product is 320. What are the positive integers?

seropon [69]

Answer:

The integers are (x, y) = (40, 8).

Step-by-step explanation:

x = 5y

xy = 320

Substitute the first equation into the second equation.

(5y)(y) = 320

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y^2 = 64

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2 years ago

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liraira [26]

Answer:

(y+b)/a = x

Step-by-step explanation:

y = ax − b

Add b to each side

y+b = ax − b+b

y+b =ax

Divide each side by a

(y+b)/a = ax/a

(y+b)/a = x

7 0

3 years ago

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