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3 years ago

Evaluate c -2 when c equals 7.

Mathematics

1 answer:

kherson [118]3 years ago

6 0

Answer:

the answer is 5

Step-by-step explanation:

hope it help

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Given the triangle below, which of the following equations correctly represents the relationship between a, b, and c?

maxonik [38]

Answer:

C. c^2=a^2+b^2-2abcos(90°)

Step-by-step explanation:

This is the law of cosine.

7 0

3 years ago

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The perimeter of a rectangle is 72 cm. The length is 3 more than twice the width What

solmaris [256]

<h3>Solution</h3>

Given :-

Perimeter of rectangle = 72 cm
The length is 3 more than twice the width.

Find :-

Dimensions of rectangle

<h3 /><h3>Explantion</h3>

Using Formula

$\boxed{\underline{\tt{\red{\:(perimeter_{rectang}\:=\:2\times (Length+Width)}}}}$

Let,

Length of Rectangle = x cm
Breadth of Rectangle = y cm

According to question,

==> perimeter of Rectangle = 72

==> 2(x+y) = 72

==> x + y = 72/2

==> x + y = 36_________________(1)

Again,

==> x = 2y + 3

==> x - 2y = 3__________________(2)

Subtract equ(1) & equ(2)

==> y + 2y = 36 - 3

==> 3y = 33

==> y = 33/3

==> y = 11

keep in equ(1)

==> x - 2×11 = 3

==> x = 3 + 22

==> x = 25

<h3>Hence</h3>

Length of Rectangle = 25 cm
Width of Rectangle = 11 cm

<h3 />

7 0

3 years ago

Which expressions are equal to 3 5x 3? (Select all that apply)

Nesterboy [21]

Step-by-step explanation:

The given expression is :

$\dfrac{3}{5}x+3$

We need to find the equivalent expression for the above expression.

We can write 3 as 2+1

$\dfrac{3}{5}x+2+1$ (This is the equivalent expression)

Also,

$\dfrac{3x+5\times 3}{5}\\\\=\dfrac{3x+15}{5}$

This is also an equivalent expression.

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3 years ago

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Between which two square roots of integers could you find 3.14

Drupady [299]

It is between 2 and 3

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4 years ago

The key idea of the transformation called a rotation is the moving of the plane a certain about a ______ point.

Svetlanka [38]

The key idea of the transformation called a rotation is the moving of the plane a certain angle around a fixed point.

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3 years ago