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exis [7]
3 years ago
9

NEED HELP PLEASE WILL MARK BRAINLIEST !!!

Mathematics
1 answer:
Leona [35]3 years ago
3 0
The answer you need is b
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Which expression is equivalent to 7m + 5 + 6 + 3m
Yuki888 [10]

Answer:21

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How many eighth-size parts do you need to model 3/4? explain
Alik [6]
To know the amount of eights you want to get something that looks like ?/8. Basically, the bottom number needs multiplying by 2 (8 divided by 4 is 2). To keep the fraction accurate you multiply by 2 the top and bottom number so you get: 
<span>3/4=(3x2)/(4x2)=6/8</span>
6 0
3 years ago
Solve the equation 2x^2-3x-6=0 give your answer correct to two decimal places
IRISSAK [1]

Answer:

<h2>x = - 1.14 or x = 2.64</h2>

Step-by-step explanation:

2x² - 3x - 6 = 0

Using the quadratic formula

x =  \frac{ - b± \sqrt{ {b}^{2}  - 4ac} }{2a}

a = 2 , b = - 3 , c = 6

Substituting the values into the above formula

We have

x =  \frac{ -  - 3± \sqrt{ { - 3}^{2}  - 4(2)( - 6)} }{2(2)}

x =  \frac{3± \sqrt{9 +48 } }{4}

x =  \frac{3± \sqrt{57} }{4}

x =  \frac{3 -  \sqrt{57} }{4}  \:  \:  \:  \: or \:  \:  \:  \:  \: x =  \frac{3 +  \sqrt{57} }{4}

We have the final answer as

<h3>x = - 1.14 or x = 2.64</h3>

Hope this helps you

6 0
3 years ago
Please help me i really really really need help please please help me please
Dafna1 [17]

9514 1404 393

Answer:

  ∠4 = 100°

Step-by-step explanation:

This has nothing to do with parallel lines.

Angles 1 and 4 are "vertical angles", hence congruent.

  ∠1 = ∠4 = 100°

_____

Vertical angles are on opposites sides of the intersection where lines cross.

7 0
3 years ago
Write an expression for "the sum of d and 9
mixer [17]

Answer:

Sum means to ADD in the math world

Step-by-step explanation:

So your answer would be d + 9

3 0
3 years ago
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