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zmey [24]
3 years ago
6

Simplify. (-√7)(-√7)

Mathematics
1 answer:
Savatey [412]3 years ago
5 0

Answer:

<em><u>7</u></em>

Step-by-step explanation:

(-√7)(-√7)

(-\sqrt{7})^2

(\sqrt{7})^2

<em><u>7</u></em>

<em><u /></em>

<em><u>Please Mark As Brainliest</u></em>

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If a quantity increases by 25% and then decreases by 25%, will that result be the original quantity? Explain.
alexandr1967 [171]
<span>If a quantity increases by 25% and then decreases by 25%, will that result be the original quantity? Explain.
Let’s try to be able to know the answer:
=> Let’s have 10 as the value
Increase by 25%
=> 10 + 25%
=> 10 * .25 =  2.5
=> 10 + 2.5 = 12.5 the new value
Now, decrease this by 25%
=> 12.5 – 25%
=> 12.5 * .25 = 3.125
=> 12.5 – 3.125 = 9.375 or 9.4
Thus, the given statement is false.

</span>



3 0
3 years ago
Change to a fraction 3.025
scoray [572]

Answer:

3.025 as a fraction is 121/40

3 0
3 years ago
How do you find the value of x for this figure?
Studentka2010 [4]
The 2 lines intersect, and by definition it will create equal opposite angles.  Since we know that the angle created is 125 degrees, then the angle on the opposite side also must equal 125 degrees.  But wait, they broke up the angle into 2 angles made up of a 64 degree angle and an X degree angle.  These 2 angles must add up to 125 degrees.

x + 64 = 125
x = 125 - 64
x = 61 degrees
6 0
3 years ago
NEED HELP ASAP!!!
lys-0071 [83]

Answer:

3 and 4: B

Step-by-step explanation:

As per the property of traversal lines, when two parallel lines are cut by traversal then the corresponding angles formed are equal.

In given case ∠6 is corresponding angle of ∠8 and ∠8 is corresponding to ∠18.

Hence option B is correct for 3 and statements!

If lines are ||, corresponding angles are equal.

8 0
3 years ago
Multiply. Write your answer as a fraction in simplest form 9/10 x 2/3
Oduvanchick [21]

Answer:

3/5

Step-by-step explanation:

9/10 and 2/3 can cross cancel

3 goes into 9, 3 times

2 goes into 10, 5 times

they both go into themselves once

our new fractions are 3/5 and 1/1 which equals 3/5

8 0
3 years ago
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