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2 years ago

Solve 3x² + 4x=2 What is the answer? And how do you solve?

Mathematics

1 answer:

alexgriva [62]2 years ago

3 0

Answer:

1st one

Step-by-step explanation:

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What does n/5 = ? <br><br> A) f/9<br><br> B) 9/5

nadezda [96]

Answer:

I think is A but check it just in case

Step-by-step explanation:

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3 years ago

Hello please help i’ll give brainliest

crimeas [40]

Answer:

the 2nd one

Step-by-step explanation:

5 0

2 years ago

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In this unit, you worked with geometric proofs. A proof is a logical sequence of justified conclusions that lead from a hypothes

Alborosie

Answer:

Not only in mathematics, scientific proof also are required in the other field of science. Also maths proofs are of particular structure, containing steps and logics. So proving is like doing science, it is science. That's why it is important to prove.

Step-by-step explanation:

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3 years ago

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You must calculate the number of sheets of plywood needed for subflooring. Each sheet of plywood measures 4'by 8. The measuremen

snow_lady [41]

Answer:

25 sheets of plywood will be needed

Step-by-step explanation:

Each sheet of plywood measures $4ft*8ft=32ft^{2}$ .

We have to cover the surface of the house, minus the surface of the hole of the stairs.

$Surface _{to cover} = Surface _{house} -Surface _{hole}= (28ft*30ft)-(12ft*4ft)= 840ft^{2}-48ft^{2}=792ft^{2}$

To know how many sheets will be needed, we divide the surface to be covered by the surface of each sheet

$Sheets_{needed} =\frac{Surface _{house}}{Surface _{sheet}} =\frac{792ft^{2}}{32\frac{ft^{2}}{sheet} } = 24,75 sheets$

As we can't buy 0,75 of a sheet, we round it up, i.e. we will need 25 sheets of plywood for subflooring.

8 0

3 years ago

Plot the line for the the equation on the graph y-2=-2(x+4)

Murrr4er [49]

Y=-2x-8+2
y=-2x-6
if x=0;Y=-6
IF y=0;x=-3
to plot the graph; plot point in -6 y-axis and -3 on the x-axis join them together then extend the line
hope u understood

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3 years ago