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2 years ago

Select all expressions that are equivalent to 10q + 5 ?

Mathematics

1 answer:

OLga [1]2 years ago

5 0

Answer:

5q + 5q + 5

2q + 5 + 8q

5(2q + 1)

Step-by-step explanation:

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Which statement describes the graph of the function?

meriva

Answer: A

Step-by-step explanation:

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3 years ago

Find the inverse of the function. f(x) = the cube root of quantity x divided by seven. - 9

elena-14-01-66 [18.8K]

To solve

replace f(x) with y
switch x and y
solve for y
replace y with f⁻¹(x)

so
I'm not sure if it is
$f(x)=\sqrt[3]{\frac{x}{7}}-9$ or
$f(x)=\sqrt[3]{\frac{x}{7}-9}$

first one
$f(x)=\sqrt[3]{\frac{x}{7}}-9$
replace f(x) with y
$y=\sqrt[3]{\frac{x}{7}}-9$
switch x and y
$x=\sqrt[3]{\frac{y}{7}}-9$
solve for y
$x+9=\sqrt[3]{\frac{y}{7}}$
$(x+9)^3=\frac{y}{7}$
$7(x+9)^3=y$
replace y with f⁻¹(x)
$f^{-1}(x)=7(x+9)^3$

2nd one
$f(x)=\sqrt[3]{\frac{x}{7}-9}$
replce f(x) with y
$y=\sqrt[3]{\frac{x}{7}-9}$
switch x and y
$x=\sqrt[3]{\frac{y}{7}-9}$
solve for y
$x^3=\frac{y}{7}-9$
$x^3+9=\frac{y}{7}$
$7(x^3+9)=y$
replace y with f⁻¹(x)
$f^{-1}(x)=7(x^3+9)$

if you meant $f(x)=\sqrt[3]{\frac{x}{7}}-9$ then the inverse is $f^{-1}(x)=7(x+9)^3$

if you meant $f(x)=\sqrt[3]{\frac{x}{7}-9}$ then the inverse is $f^{-1}(x)=7(x^3+9)$

7 0

2 years ago

Question 7: Please help. What are the coordinates of the point located 35 of the way from point A to point B?

SSSSS [86.1K]

Answer:

(3,-7)? I'm not sure.

3 0

2 years ago

X is a normally distributed random variable with a mean of 8 and a standard deviation of 4. The probability that x is between 1.

Natalka [10]

Answer:

P(1.48<X<15.56) ≈ 0.919 ≈ 91.9%

Step-by-step explanation:

2nd+DISTR --> normalcdf

P(1.48<X<15.56) = normalcdf(1.48,15.56,8,4) ≈ 0.919

7 0

2 years ago

Two standard six-sided dice are tossed. What is the probability of getting a 3 and a 5

Svetach [21]

Answer:

1/36

Step-by-step explanation:

Getting a 3 is 1/6

Getting a 5 is 1/6

Multiply those and get 1/36

4 0

2 years ago