3 years ago

Which expression is equivalent to 5x +10y-15

Mathematics

2 answers:

diamong [38]3 years ago

7 0

I think it's 5(x+2y-3)

Maksim231197 [3]3 years ago

7 0

Answer:

its C

Step-by-step explanation:

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Tom wants to paint a rectangular wall that measures 16 feet by 9 feet. The wall contains a window with the dimensions shown. If

ollegr [7]

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3 years ago

*30 POINTS* what is the answer to x= ___?

kompoz [17]

$\huge\pink{\fbox{\underline{\underline{\maltese{Answer}\maltese}}}}$

$\\$

Ratio of the sides of the similar triangles are equal ,

$\frac{DG}{EF} = \frac{CD}{CE}$

=> $\frac{10}{30} = \frac{9x–3}{36}$

=> $9x – 3 = \frac{36}{3}$

=> $9x – 3 = 12$

=> $9x = 15$

=> $x = \frac{15}{9}$

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7 0

3 years ago

Write the given expression as the cosine of an angle: cos60cos105 - sin60sin105?

Ahat [919]

We know that

The cosine of the sum of two angles is defined by the following trigonometric identity

cos(A + B) = cos A cos B − sin A sin B
A=60°
B=105°
cos A=cos 60
cos B=cos 105
sin A=sin 60
sin B=sin 105

then
cos(60 + 105) = cos 60 cos 105 − sin 60 sin 105
cos(165) = cos 60 cos 105 − sin 60 sin 105

the answer is
cos (105°)

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3 years ago

What is the measure of angle R ? hey guys 50 points! plz help in middle of my final

larisa [96]

Answer:

29 degrees I think

Step-by-step explanation:

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3 years ago

Please help this is a big test

maw [93]

Answer:it’s c

Step-by-step explanation:I don’t have one sorry I’m to kazy to type it

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3 years ago