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3 years ago

Helpppppppppppppppppppppppp WILL MARK BRAINLIST

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

7 0

Sub in -7 as x
-(-7)^2 + 8(-7)
= -49 -56
= -105

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Instructions: Determine if the two triangles in

leonid [27]

The 2 triangles are congruent

4 0

3 years ago

1/x+a=b, solve for x. im lost

mina [271]

Answer:

Step-by-step explanation:

First, Let's take a on both sides:

$\frac{1}{x}+a-a=b-a$

$\frac{1}{x}=b-a$

Remember that 1/x is called the reciprocal. For example the reciprocal of 2 is 1/2 and the reciprocal of 5 is 1/5. If we read the equation is telling us: "Reciprocal of x is b - a". Therefore, $\frac{1}{b-a}=x$ .

Another way to solve it is to multiply x on both sides. Then,

$\frac{x}{x}=(b-a)*x$

$1=(b-a)*x$

Then divide by (b-a). Remmebre to treat b-a as a factor:

$\frac{1}{(b-a)}=\frac{(b-a)*x}{(b-a)}$

Cancelling (b-a) on the right hand side:

$\frac{1}{(b-a)}=x$

7 0

4 years ago

Can someone help me solve this step by step?:)

navik [9.2K]

15. you have to subtract 8 from 5 and then times 3

3 0

3 years ago

Pls help I’ll brainlest for the right answer

Zanzabum

Answer:

5.9+z=−9

Step 1: Simplify both sides of the equation.

z+5.9=−9

Step 2: Subtract 5.9 from both sides.

z+5.9−5.9=−9−5.9

z=−14.9

Answer:

z=−14.9

Step-by-step explanation:

I hope this can help!!!

8 0

3 years ago

Is 2x+4 in lowest form?

BabaBlast [244]

Answer:

x+2 is the lowest turn

Step-by-step explanation:

2x+4 can be simplified into x+2

3 0

4 years ago