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AleksAgata [21]

3 years ago

7

2+2+9x8 will give brainliest

2 answers:

IceJOKER [234]3 years ago

6 0

The answer is 76
Step by step explanation
We are going to use pemdas so first multiply 9 * 8 which is 72. Now add 2+2 to 72 which equals 76

ella [17]3 years ago

5 0

Answer:

by folllowing the rules of pemdas we see that 2+2+9x8 is sovled as so:

2+2+9x8

2+2+72

4+72

76

Step-by-step explanation:

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Over a two week period you worked 7 1/2 hrs a day for 8 days. You earn $11.50 an hour. How much money did you earn in your paych

OleMash [197]

Answer: $\$687$

Step-by-step explanation:

Given

Working hours are $7\ \frac{1}{2}$ for 8 days

Money earned is $11.50 an hour

Total working hours

$=\dfrac{7\times 2+1}{2}\times 8=\dfrac{15}{2}\times 8\\\\=60\ hr$

Money earned

$=60\times 11.50=\$690$

After-tax deduction

$\Rightarrow 690-3=\$687$

4 0

3 years ago

A shirt with a price of $24 was on sale for 30% off its original price. What

Crank

Answer:

$7.20

Step-by-step explanation:

So you take the 24 and multiply it by .3

.3=30%

24x.3=7.2

8 0

3 years ago

Find all points on the x-axis that are 14 units from the point (4, -7).

BaLLatris [955]

Answer:

The points are: (16.12,0),(-8.12,0).

Step-by-step explanation:

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:

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

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

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

Distance between two points:

Suppose we have two points, $(x_1,y_1)$ and $(x_2,y_2)$ . The distance between them is given by:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Find all points on the x-axis that are 14 units from the point (4, -7).

Being on the x-axis mean that they have y-coordinate equal to 0, so the point is (x,0).

The distance is 14. So

$\sqrt{(x-4)^2+(0-(-7))^2} = 14$

$\sqrt{x^2 - 8x + 16 + 49} = 14$

$\sqrt{x^2 - 8x + 65} = 14$

$(\sqrt{x^2 - 8x + 65})^2 = 14^2$

$x^2 - 8x + 65 - 196 = 0$

$x^2 - 8x - 131 = 0$

So $a = 1, b = -8, c = -131$

$\bigtriangleup = (-8)^{2} - 4(1)(-131) = 588$

$x_{1} = \frac{-(-8) + \sqrt{588}}{2} = 16.12$

$x_{1} = \frac{-(-8) - \sqrt{588}}{2} = -8.12$

The points are: (16.12,0),(-8.12,0).

4 0

3 years ago

URGENT‼️NEED HELP ASAP

Nutka1998 [239]

2 units is the distance

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