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Natasha2012 [34]
3 years ago
10

Factor 2x2 - 9x - 5 using substitution.

Mathematics
1 answer:
Otrada [13]3 years ago
5 0

Answer:

(2x+1)(x−5)

Step-by-step explanation:

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PLEASE HELP <br> What is the volume, in cubic m, of a cube with an edge length of 14m?
Lera25 [3.4K]

Answer:

v = 2744 m³

Step-by-step explanation:

Volume of cube

= length³

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5 0
3 years ago
I need help with all 4 <br> For # 31 - 34, solve the equation for the unknown variable.
Sati [7]
31 is g = -19
32 is x = -9
34 is w = -11
31:
g-(-7) = -12
g+7 = -12
g = -19
32:
-5x = 45 divide by -5
x = -9
33 looks like it has a print error so I can’t figure that out, I don’t know where the |-2| is supposed to be
34:
(w-1)/4 = -3 multiply by 4
w - 1 = -12
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3 0
3 years ago
Please I need some help on this
ivann1987 [24]

It wouldbe D.) because you would do

12-4=x

x would be the number of adults

you would solve for x and get 8 so you would have to solve so it would be D.)

3 0
3 years ago
Read 2 more answers
A fast food restaurant sells hamburgers for $5.50 each and hotdogs for $4 each. Write an algebraic expression to find the total
Inessa [10]
X = hamburgers and y = hot dogs

5.50x + 4y <== ur expression


5 0
3 years ago
Read 2 more answers
laws of Sines special cases. Find each measurement. Round your answer to the nearest tenth. Part 1. Please show your work. #1-4​
Andrews [41]

Answer:

Apply sine theorem:

1.

c/sinC = a/sinA

=> sinC = sinA x (c/a) = sin70 x 28/24 = 1.096 => Invalid ( 1.096 > 1)

=> C is undefined

=> B is undefined

2.

c/sinC = b/sinB

=> sinB = sinc x (b/c) = sin40 x 34/33 = 0.662

=> B = arcsin(0.662) = 41.47 deg

3.

c/sinC = b/sinB

=> sinB = sinC x (b/c) = sin29 x 26/6 = 2.101 => Invalid ( 2.101 > 1)

=> B is undefined

=> A is undefined

4.

c/sinC = a/sinA

=> sinC = sinA x (c/a) = sin28 x 20/16 = 0.587

=> C = arcsin(0.587) = 35.93 deg

Hope this helps!

:)

7 0
3 years ago
Read 2 more answers
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