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3 years ago

HURRY! PAST DUE MATH HOMEWORK!

Mathematics

2 answers:

Anettt [7]3 years ago

8 0

10•4=40. 40 is the perimeter of the square. To find the perimeter of the semicircle use the circle perimeter (circumference) formula and divide that answer by two. This would be pi•10. You get 31.4. Then divide by 2 so it’s 15.7. Finally add 15.7 and 40. Hope this helps... sorry it’s such a long answer

Llana [10]3 years ago

4 0

Answer:

45.7 inches

Step-by-step explanation:

The perimeter uses 3 sides of the square, so 3 x 10 = 30. We'll add that later.

Then we need to find the circumference of the half-circle. We know the diameter is 10, because that's the side of a square.

Circumference = pi x diameter

C = 3.14 x 10 = 31.4

But that's for the whole circle. We only have a half.

31.4 /2 = 15.7 is the perimeter for the half circle. Add this to the 3 sides of the square

30 + 15.7 = 45.7

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Juan has $8 less than julio together they have $48 how much does each have ?

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Juan has $20 and Julio has $40

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4 years ago

Read 2 more answers

What is the maximum width of the mail slot?

Anna71 [15]

Step-by-step explanation:

Using Pythagoras theoram,

AC²= AB²+BC²

$AC= \sqrt{ {AB}^{2} + {BC}^{2} }$

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3 years ago

HELPPPPP!!!!!!! PLEASESWE

harina [27]

What you are trying to do, I don't know. I will combine them for you.

8)

$\displaystyle \frac{6}{x-1} - \frac{5x}{4} \\ \\ = \frac{4(6)}{4(x-1)} - \frac{5x(x-1)}{4(x-1)} \\ \\ 
= \frac{24}{4(x-1)} + \frac{-5x(x-1)}{4(x-1)} \\ \\
= \frac{24}{4(x-1)} + \frac{-5x^2+5x}{4(x-1)} \\
= \frac{24 - 5x^2 + 5x}{4(x-1)}$

____________________

9)

$\displaystyle 
\frac{3}{x+7} + \frac{4}{x-8} \\ \\ = 
\frac{3(x-8)}{(x+7)(x-8)} + \frac{4(x+7)}{(x+7)(x-8)} \\ \\ =
\frac{3x-24}{(x+7)(x-8)} + \frac{4x+28}{(x+7)(x-8)} \\ \\ =
\frac{3x-24}{(x+7)(x-8)} + \frac{4x+28}{(x+7)(x-8)} \\ \\ =
\frac{7x + 4}{(x+7)(x-8)}$

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3 years ago

How much would you be willing to rent an additional oven when the order size is 1 dozen cookies

Kamila [148]

The amount that you should be willing to rent an additional oven when the order size is 1 dozen cookies is the amount that is less than the profit of producing those cookies.

<h3 /><h3>What amount should be paid to rent an additional oven?</h3>

The dozen cookies that Kristen’s Cookie Company are about to make are an additional order which means that they do not have the ovens to make it.

They will therefore have to rent an additional oven. If they did this, the amount they pay for the additional oven should not give them losses. They should therefore rent the oven at a cost that is less than the profit they will get for the additional 1 dozen cookies.

Find out more on accepting additional orders at brainly.com/question/25811981.

#SPJ4

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2 years ago

Write y= -4x² -16x -14 in vertex form.

adell [148]

Put brackets around the first two terms on the right. y = (-4x^2 - 16x) - 14
Pull out the common factor in the first two terms. y = -4(x^2 + 4x) - 14
Divide the middle term by 2. Add that inside the brackets. square y = -4(x^2 +4x +(4/2)^2 - 14
y = -4(x^2 + 4x + 4) - 14 + 16 This is the step where most people stumble. The point is why is 16 added? It is because what you have done inside the brackets is multiplied 4 by - 4 (on the left). That means you have changed the equation by -16. To counter that, you must add 16 after the - 14. The result is y= -4(x^2 + 4x+4) + 2
Express the terms inside the brackets as a square. y = - 4(x + 2)^2 + 2

B and D are both wrong. B has +4 outside the brackets. It is - 4

D is wrong because there is no 4 of any kind outside the brackets.

A is incorrectly represented inside the brackets as 16. That's not right

That only leaves C. <<<< Answer

Graphs

Notice that the red parabola and the green one are the same thing.

Red: y = -4x^2 - 16x - 14

Green: y = -4(x + 2)^2 + 2

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4 years ago