2 years ago

I Want to Test Somebody, Can you answer this?

Mathematics

1 answer:

Ratling [72]2 years ago

7 0

Answer 1/3

Explanation:

Write all numbers above common denominator

Then subtract the numbers

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Which Graph correctly solves the equation below? -1/2x^2 +2 = 2x^2 -8

lubasha [3.4K]

Answer:

see attachment

Step-by-step explanation:

The given equation is

$- \frac{1}{2} {x}^{2} + 2 = 2 {x}^{2} - 8$

The graph of the left hand side of this equation is

$y = - \frac{1}{2}{x}^{2} + 2$

This quadratic graph has its vertex at (0,2) and turns upside down.

The right hand side of the equation is

$y = 2 {x}^{2} - 8$

This quadratic graph opens upwards and has its vertex at (0,-8).

The two graphs intersects at two points , which are (-2,0) and (2,0).

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3 years ago

One day there is an accident and the tank cracks in 4 places. Water flows out of each crack at a rate of 12 liter per hour. An e

valentinak56 [21]

What’s the question?

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3 years ago

Explain how a(b + c ) can rewritten as (b + c) and as ba + ca

mart [117]

Answer:

The distributive property makes it possible

Step-by-step explanation:

Step one:

given the expression a(b + c )

the first step is to open the bracket, that is multiply all the terms in the bracket by a, so multiply b by a and c by a also.

Step two:

Thus, this property is called the distributive property of multiplication

a*b+ca

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3 years ago

PLEASE HELP IT'S DUE TODAY-

Marina86 [1]

bro.. i don't think someone is gonna answer all this for you, you should like figure this out on ur own..

8 0

3 years ago

Read 2 more answers

A circle has a radius of 4m . find the length s of the arc intercepted by a central angle of 77° . do not round any intermediate

Hoochie [10]

$s= \pi r ( \frac{C}{180} ) \ \ \ \ [C= central \ angle, \ r=radius, \pi =3.14] \\ \\ s=3.14*4* \frac{77}{180}= 3.14* \frac{77}{45} \approx 5.4 \ m
$

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3 years ago