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2 years ago

Find the slope of the graph of y=−45x−2.

Mathematics

1 answer:

andriy [413]2 years ago

7 0

Answer:

The slope in this equation is $45$ .

Step-by-step explanation:

Slope-intercept form: $y = mx + b$

m = slope

b = y-intercept

x = variable

$y = mx + b\\y = -45x -2$

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The N71-90 virus will give an infected person a mild rash on their arms once the person has 1 billion of the virus cells in thei

Naya [18.7K]

Answer:

B. 256

Step-by-step explanation:

Given function:

v(h) = 2^(h/4)

It can be rewritten as:

v(d) = 2^d, where d- number of divisions

If number of divisions is 8, then:

v(8) = 2^8 = 256 virus cells

Correct choice is B

4 0

2 years ago

Read 2 more answers

Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

$x=4-2\sqrt{3}$

Step-by-step explanation:

Completing the square

when $ax^2+bx+c=0$

Given equation:

$3x^2-24x+40=28$

Subtract 40 from both sides:

$\implies 3x^2-24x=-12$

Divide both sides by 3:

$\implies x^2-8x=-4$

Add the square of half the coefficient of $x$ to both sides:

$(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

$\implies x^2-8x+16=-4+16$

Factor the left side and simplify the right side:

$\implies (x-4)^2=12$

Square root both sides:

$\implies x-4=\pm\sqrt{12}$

Add 4 to both sides and simplify the radical:

$\implies x=4\pm\sqrt{4 \cdot 3}$

$\implies x=4\pm\sqrt{4}\sqrt{3}$

$\implies x=4\pm2\sqrt{3}$

5 0

1 year ago

What is the total surface area of the prism?

Trava [24]

The total surface area of this prism is 480.

7 0

2 years ago

Read 2 more answers

What is the volume of this sphere?

Natasha_Volkova [10]

Answer:

Option c. 11,488.21 cm3

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The volume of the sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$r=28/2=14\ cm$ ---> the radius is half the diameter

$\pi =3.14$

substitute

$V=\frac{4}{3}(3.14)(14)^{3}$

$V=11,488.21\ cm^3$

3 0

2 years ago

Sorry i did not put the pick hear you go sorry my bad

frutty [35]

I’m thinking 170? sorry if it’s wrong :(

5 0

2 years ago