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3 years ago

Someone plz help me with number 13 on this document

Mathematics

1 answer:

alukav5142 [94]3 years ago

3 0

The answer will be -1
(4,-1)

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Please help me, im about to cry cause im so confused. Please explain this to me

eduard

$\bold{2.5y=5x-5 }$

$\bold{y=\dfrac{5x-5}{2.5} }$

$\bold{y=\dfrac{2.5(2x-2)}{2.5} }$

$\bold{y=\dfrac{\cancel{2.5}(2x-2)}{\cancel{2.5}} }$

$\bold{ y=2x-2 }$

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3 years ago

What percentage of people spend between 41 and 56 minutes watching TV shows on this streaming service?

vekshin1

Answer:

13.5%

Step-by-step explanation:

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3 years ago

Hillary made 12 cupcakes james made 10 times as many as hillary how many cupcakes did james make

Llana [10]

12
x 10
______
120
it's pretty simply,sorry if I got it wrong,i'm kinda tired<span />

5 0

3 years ago

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Given △DEF, which is not equal to cos(F)? sin(F). sin(D). tan(F). cos(D)

valentina_108 [34]

Answer: The correct option is tan(F).

Explanation:

In the given figure the triangle is a right angle triangle because $\angle E=90^{\circ}$ .

It is also given that $DE=EF=5$ and $DF=5\sqrt{2}$ .

Since it is an isosceles right angle triangle, therefore the value of perpendicular and base is same for both angles D and F, which is 5.

$\cos (F)=\frac{Base}{Hypotenuse} =\frac{5}{5\sqrt{2}} =\frac{1}{\sqrt{2}}$

The value of cos(F) is $\frac{1}{\sqrt{2}}$ .

$\sin (F)=\frac{Perpendicular}{Hypotenuse} =\frac{5}{5\sqrt{2}} =\frac{1}{\sqrt{2}}$

The value of sin(F) is $\frac{1}{\sqrt{2}}$ .

$\sin (D)=\frac{Perpendicular}{Hypotenuse} =\frac{5}{5\sqrt{2}} =\frac{1}{\sqrt{2}}$

The value of sin(D) is $\frac{1}{\sqrt{2}}$ .

$\tan (F)=\frac{Perpendicular}{Base}=\frac{5}{5} =1$

The value of tan(F) is 1. Which is not equal to $\frac{1}{\sqrt{2}}$ .

$\cos (D)=\frac{Base}{Hypotenuse} =\frac{5}{5\sqrt{2}} =\frac{1}{\sqrt{2}}$

The value of cos(D) is $\frac{1}{\sqrt{2}}$ .

Therefore, the value of tan(F) is not equal to the value of cos(F), so the correct option is third.

3 0

3 years ago

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I need help on #16 and #14, when I did question 15 it was fine but I keep running into problems on how to solve 14 and 16

Inessa [10]

The area of a circle is pi*r^2.
The angles in a circle add up to 360 degrees.

Let's say I have a circle with radius 2.
The total area of the circle is pi* (2^2) = 4pi

Let's say I cut out 15 degrees of this circle. This piece is 15 out of 360 of the whole circle.

The area of this part is (15/360) * 4pi

The rest of the area is (360-15)/360 * 4pi.

I hope this helps.

4 0

4 years ago

Read 2 more answers