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3 years ago

HELP FIRST GETS BRAINLY

Mathematics

1 answer:

TiliK225 [7]3 years ago

4 0

Answer:

3/21 most simplest form is 1/7

Step-by-step explanation:

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8) Solve: X + 250 = 700

Naddika [18.5K]

Answer:

8. x=450

Step-by-step explanation:

I can only answer 8 sorry qwq

4 0

2 years ago

Isaac went shopping for some shoes. In the Nike store he saw a pair of shoes that cost $160. The sign said they were

adelina 88 [10]

Answer:$120 dollars

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

1. Matt painted of his room with of a gallon of paint. How much

Solnce55 [7]

Answer: Around two gallon cans

Step-by-step explanation: One gallon can of paint covers up to 400 square feet, which is enough to cover a small room, like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room.

4 0

2 years ago

A superhero is trying to leap over a tall building. The function f(x)=-16x^2+200x gives the superhero's height in feet as a func

Gemiola [76]

Answer:

Since $\bigtriangleup \geq 0$ , the superhero makes it over the building.

Step-by-step explanation:

The height is given by the following function:

$f(x) = -16x^{2} + 200x$

Will the superhero make it over the building?

We have to find if there is values of x for which f(x) = 612.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

If $\bigtriangleup < 0$ , the polynomial has no solutions.

In this question:

$f(x) = -16x^{2} + 200x$

$-16x^{2} + 200x = 612$

$16x^{2} - 200x + 612 = 0$

We have to find $\bigtriangleup$

We have that $a = 16, b = -200, c = 612$ . So

$\bigtriangleup = (-200)^{2} - 4*16*612 = 832$

Since $\bigtriangleup \geq 0$ , the superhero makes it over the building.

7 0

3 years ago

Which expression can be used to find 32% of 130?

Gemiola [76]

Answer:

b. 0.32 • 130

Step-by-step explanation:

Change the percent to decimal form

32% = .32

.32 * 130

6 0

2 years ago