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3 years ago

Giving brainliest ! easy

Mathematics

2 answers:

AveGali [126]3 years ago

8 0

Answer:

348

Step-by-step explanation:

IrinaVladis [17]3 years ago

3 0

348
Multiply by 180/pi
As a check: 2pi equals 360 degrees and your almost at 2pi

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Use the quadratic formula to solve the equation x2+7x

monitta

The solution of the equation x2+7x is 0, -7 using the quadratic formula.

Step-by-step explanation:

x2 + 7x = 0

-b ± √ b2 - 4(ac)/ 2a

substitution,

a = 1, b = 7, c = 0

= -7 ± √(7)2 - 4(1 x 0) / 2 x 1

= - 7 ± 7 / 2

x = 0 , -7

4 0

4 years ago

What will be the next in the series 2,60,10,120,30,?

grandymaker [24]

2 to 60 is 58 -48 is 10
so you have think what sort of maths skills are used like it could n+58 -48 then square or something ,but check what the differences are between the numbers.
hope it helped.

8 0

3 years ago

Which is a correct first step for solving this equation?<br> - 32 + 2 - 52 - 7 = 4x + 2

MArishka [77]

Answer:

-8x - 5 = 4x + 2

6 0

3 years ago

A school gymnasium is being remodeled. The basketball court will be similar to an NCAA basketball court, which has a length of 9

valkas [14]

Answer:

Perimeter of NCAA court=288 feet

Perimeter of new court=259.2 feet

Step-by-step explanation:

We are given that

Length of NCAA court, l=94 feet

Width of NCAA court, b=50 feet

Width of new court, b'=45 feet

We have to find the perimeter of an NCAA court and new court in the school.

Perimeter of NCAA court= $2(l+b)$

Perimeter of NCAA court= $2(94+50)$ feet

Perimeter of NCAA court=288 feet

When two rectangles are similar then the ration of their corresponding sides are equal.

Using the property

$\frac{Perimeter\;of\;NCAA\;court}{Perimeter\;of\;new\;court}=\frac{Width\;of\;NCAA\;court}{Width\;of\;new\;court}$

$\frac{288}{Perimeter\;of\;new\;court}=\frac{50}{45}$

Perimeter of new court= $\frac{288\times 45}{50}$ feet

Perimeter of new court=259.2 feet

6 0

3 years ago

What is the magnitude of -9

ExtremeBDS [4]

Answer:

I think the answer would be 9

Step-by-step explanation:

[ Sorry it's making type a longer answer ]

5 0

3 years ago

Giving brainliest ! *easy*

Giving brainliest ! easy