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3 years ago

Simplify the following

Mathematics

1 answer:

yarga [219]3 years ago

8 0

The answer is actually c. u just multiply 5 and 4n which gives u 20n. and then u multiply 5 and -13 which equals -65.

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The cost of bananas is 2.40 for 5 pounds, what is the price per pound?

lesya692 [45]

Answer:

$0.48

Step-by-step explanation:

$2.40 divided by 5 pounds equals $0.48 per pound.

6 0

3 years ago

Read 2 more answers

Nadia finds out her favorite horse family population is increasing at a constant rate. The horse family was at 24 in 2011 and is

pogonyaev

Answer:

The equation is p = (8/3) t + 24

In 2020, we will have about 48 horses.

Step-by-step explanation:

In 3 years the family increased by 32 - 24 = 8.

So the constant of proportionality = 8/3.

The required equation is p = (8/3)tx + 24

where p = the population and t is the number of years after 2011.

So in 2020 we can predict that in 2020 the number of horses

= (8/3) * 9 + 24

= 72/3 + 24

= 24 + 24

= 48.

4 0

2 years ago

If f (x) = x + 7 and g (x) = StartFraction 1 Over x minus 13 EndFraction, what is the domain of (f circle g) (x)?

Rashid [163]

Answer:

R-{13}

Step-by-step explanation:

We are given that

$f(x)=x+7$

$g(x)=\frac{1}{x-13}$

We have to find the domain of fog(x).

$fog(x)=f(g(x))$

$fog(x)=f(\frac{1}{x-13})$

$fog(x)=\frac{1}{x-13}+7=\frac{1+7x-91}{x-13}=\frac{7x-90}{x-13}$

Domain of f(x)=R

Because it is linear function.

Domain of g(x)=R-{13}

Because the g(x) is not defined at x=13

fog(x) is not defined at x=13

Therefore, domain of fog(x)=R-{13}

6 0

3 years ago

Read 2 more answers

-2 1/3 times 1 1/2<br> Enter the answer in simplest form

amm1812

Answer:

-(7/3) * (3/2) = -21 / 6 = -7 / 2 = -3 (1/2) = -3.5

Step-by-step explanation:

7 0

3 years ago

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Which of the following is equivalent to 2 ln e^ln 5x = 2 ln 15?

neonofarm [45]

Answer:

x = 3

Step-by-step explanation:

Given in the question an equation,

$2lne^{ln5x}=2ln15$

Step 1

$e^{lnx}=x$

so,

$2ln(5x)=2ln15$

Step 2

cancel 2 on both sides of the equation

$ln{5x}=ln15$

Step 3

$ln{5x}-ln15=0$

$ln\frac{5x}{15}=0$

Step 4

$ln\frac{x}{3}=0$

Step 5

$e^{ln\frac{x}{3}}=e^{0}$

Step 6

x/3 = 1

x = 3(1)

x = 3

8 0

3 years ago