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Sophie [7]
4 years ago
12

Solve2x^2 + 3x = 5 by factoring

Mathematics
2 answers:
diamong [38]4 years ago
8 0
Downloaded Photomath it’s going to help you a lot, and teaches you step by step, also it’s free try it
hodyreva [135]4 years ago
4 0

Answer:

x = -5/2

x = 1

Step-by-step explanation:

2x² + 3x = 5

2x² + 3x - 5 = 0

(2x + 5)(x - 1) = 0

2x + 5 = 0

2x = -5

x = -5/2

x - 1 = 0

x = 1

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What is the length of the base of a triangle with height 18 m and area 99 square m?
Ivan
Use the equation for the area of a triangle:
A =  \frac{1}{2} hb
where A = area, h = height of the triangle, and b = base of the triangle.

You know that h=18m and A=99m^{2}. Plug those values into the equation and solve for b, the base.
A = \frac{1}{2} hb \\ 
99 = \frac{1}{2} (18)b \\ 
99=9b\\
b=11

The base is 11m long. 
8 0
3 years ago
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Sching Equations with Variables on both sides 1<br> A<br> Acelas<br> Solve for x.<br> X-6 = 5(x + 2)
Allisa [31]

Answer:

Step-by-step explanation:

here you go mate

step 1

x-6 = 5(x + 2)  equation/Question

step 2

x-6 = 5(x + 2)  simplify

x+(-)6=5x+10

x-6=5x+10

step 3

x-6=5x+10  subtract 5x

-4x-6=10

step 4

-4x-6=10  add 6

-4x=16

step 5

\frac{-4x}{-4}=\frac{16}{-4}  \\

answer

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5 0
3 years ago
Someone came into my shop and stole $100 from the register without my knowledge, the same person came back with the $100 five mi
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10x - 4y=-20<br> Please help find number that fit to x and y that get me -20
garik1379 [7]

Answer: (0, 5) and (-2, 0)

<u>Step-by-step explanation:</u>

10x - 4y = -20

Let x = 0, then 10(0) - 4y = -20

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                               <u> ÷ -4 </u>   <u>÷ -4  </u>

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Let y = 0, then 10x - 4(0) = -20

                         10x -  0    = -20

                      <u> ÷10           </u>    <u> ÷10   </u>

                             x         = -2

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3 years ago
1/3 (4 ∙ 3) + 23<br> I need help
ANTONII [103]

Answer:

27

But tell me the exact question it has on there

Step-by-step explanation:

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