-7(x+4) Please help ASAP

Mathematics

1 answer:

jekas [21]3 years ago

8 0

Answer:

-7x+28

hope this helps

Step-by-step explanation:

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If i had 18 trees to cut and i finished 12 what percent did i cut

mixer [17]

You would have 14.76 trees cut

4 0

2 years ago

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the Hamilton eighth-grader took a trip to Myrtle beach. They drove a speed of 60 miles per hour. The trip was 570 miles. Write a

Leni [432]

Answer:

9.5 hours

Step-by-step explanation:

Your general equation is this:

y = mh + b

There is no b value because there is no starting value of miles.

y is the total number of miles driven. m is the amount of miles per hour. h is the number of hours.

570 = 60h

To find h, divide both sides by 60.

h = 9.5 hours

Hope this helps!

8 0

2 years ago

Triangle XYZ, XY= 80, ZY= 64 XZ= 48 what is the cosine

SVETLANKA909090 [29]

Answer:

$cos=\frac{4}{5}$

Step-by-step explanation:

Cosine is the adjacent side over the hypotenuse (You can remember sin, cos, and tan by using sohcahtoa or sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite over adjacent). I think a picture would help, too.

I attached a picture of what I think the triangle would look like.

If the picture is right (we're assuming it is) and going with what we're given (the triangle was addressed as triangle XYZ, meaning that <u>angle Y is in the middle and that's the one we'll use</u>).

Looking at my picture then:

$cos=\frac{64}{80} \\cos=\frac{8}{10} \\cos=\frac{4}{5}$ .