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3 years ago

Find an expression which represents the sum of (-6x+y) and (−3x+5y) in simplest terms.

Mathematics

1 answer:

stepan [7]3 years ago

3 0

-9x+6y
Explanation I needed more characters

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IM SO DUMB I NEED HELP

alexdok [17]

Answer:

$76.0m^2$ (you have to have the .0 since it says to round to the nearest tenth)

Step-by-step explanation:

The formula for the surface area of a rectangular prism is:

$A=2(wl+hl+hw)$

So just plug in the values.

Height= 4

Width=2

Length=5

$A=2((2)(5)+(4)(5)+(4)(2))\\A=2(10+20+8)\\A=2(38)\\A=76m^2$

6 0

2 years ago

Dorit wants to make farmer’s cheese. She knows that for 2 gallons of milk, she will need 14 teaspoon of rennet. She only has 12

Alexeev081 [22]

Answer:

to do this you need to Multiply 14 by 6 to satisfy the fact she has 6 times the amount of milk for 14 teaspoons of rennet

6 0

2 years ago

Through:(-1,-5), slope=5

Travka [436]

What exactly are you looking for?

7 0

3 years ago

PLZ HELP!! WILL MARK BRANLYIST!!! 30 POINTS!!

V125BC [204]

Answer:

The distance between the light and the actor's face is 29.24 ft

Step-by-step explanation:

In the attached photo, you can see where the hypotenuse, the opposite side, and and adjacent side are located from the given angle measurement which is 70°. Our known side length is 10 ft which is our adjacent side and our variable is the hypotenuse. So, we will use cos.

$Cos=\frac{adjacent}{hypotenuse}$

Let's plug in our numbers and variable.

$(Cos)70=\frac{10}{x}$

Since our hypotenuse is a variable, we are going to flip the equation so we can find the value of the hypotenuse which is also our variable.

$x=\frac{10}{(cos)70}$

Divide 10 by (cos)70.

x = 29.24

So, the hypotenuse is 29.24 feet which shows the distance between the light and the actor's face.

8 0

2 years ago

two right triangles are similar if an acute angle of one triangle is congruent to an acute angle of the other triangle. a. true

MArishka [77]

Answer: True

One angle of a right triangle = 90°
Let x = the acute angle of one angle.
Let y = the angle of the other angle.

Because the sum of angles in a triangle is 180°,
x + y + 90 = 180
x + y = 90
y = 90 - x

Therefore the angles for each of the two triangles are
x, 90° - x, 90°.

The two triangles are therefore similar because of AAA (Angle, Angle, Angle).

5 0

3 years ago

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