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Eddi Din [679]
3 years ago
14

I need help with 2 plz help

Mathematics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

a=31.61

Step-by-step explanation:

Pythagorean theorem states that square hypotenuse side is equal to square opposite side plus  square adjacent side

Hyp²= Opp²+Adj²

the opposite is represented by a in the question, so

60²=a²+51²

3600=a²+2601

combine the like terms

3600-2601=a²

999=a²

a²=999

square root both sides to remove the square

√a²=√999 {square cancels the square root

a=√999

a=31.606

a=31.61 approximately


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September 6 is a Read Book Day.Polina read 5 times as many pages as Marcus read.Together,the read 108 pages.How many pages did e
Gemiola [76]

Answer:

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

Step-by-step explanation:

Let

x -----> number of pages that Polina read

y ----> number of pages that Marcus read

we know that

x+y=108 ----> equation A

x=5y -----> equation B

substitute equation B in equation A and solve for y

5y+y=108\\6y=108\\y=18

Find the value of x

x=5y -----> x=5(18)=90

therefore

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

3 0
2 years ago
6mn (2m-3n) equals to?
Free_Kalibri [48]

Answer and Step-by-step explanation:

Distribute the 6mn to the 2m and -3n

The answer is:

(12m^{2} n ) - 18mn^{2}

#teamtrees #WAP (Water And Plant)

6 0
3 years ago
Read 2 more answers
8(2x-3)-6x if 3=x and simplify
Rom4ik [11]
Simplify the expression:

8(2x - 3) - 6x = 8×2x - 8×3 - 6x = 16x - 24 - 6x = 10x - 24

for x=3

put value of "x" to the expression:

<u>10×3 - 24 = 30 - 24 = 6</u>
5 0
2 years ago
Can someone please help me
Umnica [9.8K]

9514 1404 393

Answer:

  • central: XWR, VWU
  • inscribed: VST

Step-by-step explanation:

Point W is the center of the circle. Any angle with W as its vertex is a central angle:

  angles XWR and VWU are central angles

Any angle with its vertex on the circle and rays that intersect the circle is an inscribed angle.

  angle VST is an inscribed angle

7 0
2 years ago
Combine like terms. x^2y-3xy^2-6x^2y
balu736 [363]

The result after combining like terms is: -5x^2y-3xy^2

Step-by-step explanation:

Given expression is:

x^2y-3xy^2-6x^2y

The like terms are those terms with whom the variable or product of variables is same.

As in the given expression, first and third, both terms have x^2y so both terms are like terms

Combining like terms, means the indicated operation is performed on them

So,

Combining like terms:

x^2y-6x^2y-3xy^2\\= -5x^2y-3xy^2

Hence,

The result after combining like terms is: -5x^2y-3xy^2

Keywords: Expressions, polynomials

Learn more about polynomials at:

  • brainly.com/question/846474
  • brainly.com/question/833559

#LearnwithBrainly

3 0
2 years ago
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