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lions [1.4K]
3 years ago
10

HELP! Ill vote brainliest and 60 pts is on the line!

Mathematics
2 answers:
WITCHER [35]3 years ago
4 0

Answer:

2

Step-by-step explanation:

2x^2-8x+7=0\\\\

a=2

b=-8

c=7

\frac{8+ \sqrt{16-4(2)(7)} }{4}

4±\sqrt{2} /2

Burka [1]3 years ago
3 0

Answer:

The answer is 2 hope this helps :3

Step-by-step explanation:

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I don’t know what I’m doing wrong. I need help understanding this problem please...
denpristay [2]

Answer:

Step-by-step explanation:

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5 0
3 years ago
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6 0
3 years ago
Find the equation of the line.
Grace [21]

Answer:

m:-\frac{1}{3}

Step-by-step explanation:

Pick two points (0,5) and (3,4)

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7 0
3 years ago
Which answer is correct
andre [41]

Hello from MrBillDoesMath!

Answer:

The first choice,  Pi + (-Pi) = 0

Discussion:

Pi is an irrational number. Saying the irrational numbers <u>are</u> closed under addition means if we add two irrational numbers we will get another irrational number. In our case, Pi + (-Pi) = 0, which is correct, BUT 0 is a <u>rational </u>number. This shows the set of irrational numbers is NOT closed under addition.

Thank you,

MrB

7 0
3 years ago
If the dimensions of a pentagonal prism are quadrupled, then the surface area of the prism is multiplied by eight.
Lubov Fominskaja [6]

Answer:

false

Step-by-step explanation:

the relationship between lengths/dimensions and areas is that areas are created by multiplying 2 dimensions.

when you quadruple (×4) the dimensions, then the areas are growing with the square of the factor (×4×4 = ×16), because the factor goes twice into the multiplication : one time for every dimension involved.

so, quadrupling the dimensions would multiply the areas by 16.

8 0
3 years ago
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