Please help me with this 8th grade math

Mathematics

1 answer:

VMariaS [17]2 years ago

7 0

The answer is -21 I just took the test

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julia-pushkina [17]

In step 1 the difference of 1.5x(-3.2) & 1.5x(2.5) should be written as a sum. Hope that’s right :).

4 0

1 year ago

Determine the value of y is x is -10:<br> y=x-91+2

cestrela7 [59]

Answer:

$y = x - 91 + 2 \\ x = - 10 \\ y = - 10 - 91 + 2 \\ y = - 101 + 2 \\ x = - 99$

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3 years ago

Solve the inequality. 1/2y +6<0

Assoli18 [71]

$\dfrac{1}{2}y+6 < 0\ \ \ \ |-6\\\\\dfrac{1}{2}y < -6\ \ \ \ |\cdot2\\\\\boxed{y < -12\to y\in(-\infty;-12)}$

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3 years ago

The areas of the squares adjacent to two sides of a right triangle are shown below.

UkoKoshka [18]

Answer:

$85\:\mathrm{units^2}$

Step-by-step explanation:

All side lengths of a square are equal. The three squares create a right triangle, and the hypotenuse of this triangle represents the side length of the square.

All right triangles must follow the Pythagorean Theorem $a^2+b^2=c^2$ where $c$ is the hypotenuse of the triangle.

Therefore, let $h$ be the side length of this largest square. Since the area of a square with side length $s$ is given by $s^2$ , $h^2$ will represent the area of the square: