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2 years ago

Simplify: (-2x - 3) – (3x2 – 8x + 9). Choose the standard form of the answer.

Mathematics

1 answer:

lawyer [7]2 years ago

7 0

Answer:

Step-by-step explanation:

Given

(- 2x - 3) - (3x² - 8x + 9) ← distribute parenthesis

= - 2x - 3 - 3x² + 8x - 9 ← collect like terms

= - 3x² + 6x - 12 → C

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In a recent year, 31.6% of all registered doctors were female. If there were 53,000 female registered doctors that year, what wa

Naily [24]

Answer:

The total number of registered doctors was 167,722.

Step-by-step explanation:

Total number of doctors:

The total number of doctors is given by x.

31.6% of all registered doctors were female. 53,000 female doctors.

This means that:

$0.316x = 53000$

What was the total number of registered doctors?

We have to solve the above equation for x. So

$x = \frac{53000}{0.316}$

$x = 167722$

The total number of registered doctors was 167,722.

6 0

3 years ago

Composition of functions Find g (f(x)) for the following problems

beks73 [17]

$f(x)=-3x\qquad g(x)=5x-6\\\\g(f(x))=5(-3x)-6=\boxed{-15x-6}$

$f(x)=x-6\qquad g(x)=x^2+6x-2\\\\g(f(x))=(x-6)^2+6(x-6)-2=x^2-12x+36+6x-36-2=\\\\=\boxed{x^2-6x-2}$

$f(x)=4x+3\qquad g(x)=2x^2-x+1\\\\g(f(x))=2(4x+3)^2-(4x+3)+1=2(16x^2+24x+9)-4x-3+1=\\\\=32x^2+48x+18-4x-3+1=\boxed{32x^2+44x+16}$

$f(x)=2x^2\qquad g(x)=8x^2+3x\\\\g(f(x))=8(2x^2)^2+3(2x^2)=8\cdot4x^4+6x^2=\boxed{32x^4+6x^2}$

7 0

2 years ago

Equation Y equals 7X can be used to find the price of different amounts of honey

Fantom [35]

Answer:

x=y/7

Step-by-step explanation:

So, the variable x is the number of jars of honey.

y is the total price of the honey.

So, x=y/7

or,

y=7x

5 0

3 years ago

How do you find the sum to i87

Aneli [31]

Answer:

sum means add so add

Step-by-step explanation:

pls give me brainliest im almost lvled up

4 0

2 years ago

What is the slope of a line that is parallel to the line y=-1/5?

Hitman42 [59]

Answer:

slope = 0

Step-by-step explanation:

y = - $\frac{1}{5}$ is the equation of a horizontal line parallel to the x- axis.

Since it is parallel to the x- axis the slope = 0

Thus any line parallel to it will have a slope = 0

4 0

2 years ago