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3 years ago

Find the solution(s) of the following equation. x2 = 81

Mathematics

1 answer:

SSSSS [86.1K]3 years ago

8 0

The answer is C. 9 times 9 is 81

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Write an equation reprezeting x axis

Rudiy27

Answer:

y=0

Step-by-step explanation:

All y-values along the x-axis are equal to 0.

3 0

3 years ago

A triangle has side lengths of (2b+c)(2b+c) centimeters, (7b+4d)(7b+4d) centimeters, and (6d+2c)(6d+2c) centimeters. Which expre

Gnoma [55]

Answer:

(9b + 3c + 10d)cm

Step-by-step explanation:

Given the sides of a triangle expressed as (2b+c), (7b + 4d) and (6d+2c). The perimeter of the triangle is the sum of all the sides of the triangles.

Perimeter of the triangle = 2b+c + 7b+4d + 6d+2c

Perimeter of the triangle = 2b + 7b + c + 2c + 4d + 6d

Perimeter of the triangle = 9b + 3c + 10d

Hence the perimeter of the triangle is (9b + 3c + 10d)cm

3 0

3 years ago

Read 2 more answers

What is the parallel slope intercept form pls help?

malfutka [58]

<h2>Answer:</h2>

If the line is parallel to the one given, their slopes are the same, so we need to find the y-intercept, then we can determine the slope-intercept form parallel to the given line.

$-1 = 4(4) + b\\\\-1 = 16 + b\\\\-17 = b$

Now that we have the y-intercept, we can create the equation.

$y = 4x - 17$

We can prove this by graphing both lines, like so.

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3 years ago

In parallelogram LMNP if PQ=21 find QM.

Simora [160]

Answer:

QM = 21

Step-by-step explanation:

The diagonals of a parallelogram bisect each other, then

QM = PQ = 21

8 0

3 years ago

( HELP ASAP! EASY POINTS ) The picture below shows a box sliding down a ramp:

TEA [102]

Answer:

AC = 14 cosec(68)

Explanation:

Here given:

angle: 68°

opposite: 14 ft

hypotenuse: AC

Use sine rule:

$\rightarrow \sf sin(x) = \dfrac{opposite}{hypotenuse}$

$\rightarrow \sf sin(68) = \dfrac{14}{AC}$

$\rightarrow \sf AC= \dfrac{14}{ sin(68) }$

$\rightarrow \sf AC= 14 \ cosec(68)$

4 0

2 years ago