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3 years ago

Which expression is equivalent to (photo inserted) help asap please

Mathematics

1 answer:

alekssr [168]3 years ago

8 0

The answer would be A!

Whenever there is a fraction in the exponent, the numerator is under the square root, and the denominator is on the outside of the square root!

Additionally, since the negative is outside of the square toot, then it also outside of the parenthesis.

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What will be the reflected point across the y-axis of (-4,-4)

ladessa [460]

It would switch it wouldn’t be negative

6 0

3 years ago

Read 2 more answers

Correct answer gets brainliest

Ilia_Sergeevich [38]

Answer:

sides: isosceles
angles: right

Step-by-step explanation:

At first, lets find the distance from one point to the other.

$d(A,B)=\sqrt{(x_{A}-x_{B} )^2 +(y_{A}-y_{B} )^2 } \\d(A,B)=\sqrt{(2-0 )^2 +(-2-4 )^2 } \\d(A,B)=\sqrt{4 +36 } = \sqrt{40 } = \sqrt{4 * 10 } = 2\sqrt{10}$

The same way, you can find that:

$d(A,C)= 2\sqrt{10}\\d(A,B)= 2\sqrt{20}$

Since the triangle has only its two sides equal to each other (AB = AC),

it's an isosceles one.

As long as the angles are concerned, we gotta "cheat". In other words, we see that:

$AB^2 + AC^2 = (\sqrt{40})^2 + (\sqrt{40})^2 = 40 + 40 = 80\\ AB^2 + AC^2 = 80 = (2\sqrt{20})^2 = BC^2\\AB^2 + AC^2 = BC^2$

By the inverse of pythagorean theorem, we know that if the above equation holds, then we have a right-angled triangle. That is to say that,

A = 90

Since its an isosceles triangle, AB = AC,

B = C = (180 - A)/2 = 45 degrees

7 0

3 years ago

HELP PLEASE ! if right will mark as brainliest !

bekas [8.4K]

Answer:

Step-by-step explanation:

so pay attentyion t the numbners

6 0

3 years ago

Natalie plans to have tile put on her kitchen floor. The area to be covered with tile is 12 1/2 feet long and 11 feet wide. Nata

Paraphin [41]

If you would like to know what is the area in square feet including the additional amount, you can calculate this using the following steps:

12 1/2 feet long * 11 feet wide = 25/2 feet * 11 feet = 137.5 square feet

10% of 137.5 square feet = 10% * 137.5 = 10/100 * 137.5 = 13.75 square feet

137.5 + 13.75 = 151.25 square feet

The correct result would be 151.25 square feet.

7 0

3 years ago

What is the value of the expression 6m=m-4(-2m+1-m) when m=-8?

mote1985 [20]

Plug -8 in wherever there is an m

6(-8) = -8-4[-2(-8)+1-(-8)]

-48 = -8-4(16+1+8)
-48 = -8-4(25)
distribute the -4
-48= -8-100
-48=-108

which means -8 is not the right solution

3 0

4 years ago