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irakobra [83]
3 years ago
10

What are the answers?

Mathematics
1 answer:
lina2011 [118]3 years ago
6 0

Heres the first 9 problems im on a time

You might be interested in
5m + 10 - 2m - 5<br> Simplify
crimeas [40]

Answer:

3m + 5

Step-by-step explanation:

Just add like terms. ( 5m - 2m) (10 - 5)

7 0
3 years ago
Read 2 more answers
50 POINTS!!!43 <br> what is 43 7/8% of $2.35?<br> Round your answer to the nearest cent
Natasha2012 [34]

Answer:

$1.03

Step-by-step explanation:

7/8 = 0.875

then

43 7/8 = 43.875%

43.875/100 = 0.43875

2.35 * 0,43875 = 1.031

Round to the neares cent:

1.03

4 0
3 years ago
Read 2 more answers
Solve the absolute value equation |8|=28
DENIUS [597]

The answer is false. This is because<u> 8 does not equal the number 28</u>.

Explination:

    |8| = 28

     8≠28

7 0
3 years ago
A square outdoor patio with side length x feet is surrounded by a brick walkway that is 4 feet wide. What is the area of the wal
Masja [62]

Answer:

Area of walkway = 16(x+4) ft^{2}

Step-by-step explanation:

Length of the sides of the square outdoor = x feet

Area of the square outdoor = length x length

                            = x * x

                            = x^{2} ft^{2}

The square outdoor is surrounded by 4 feet of walkway. So that,

length of the walkway = (x + 2(4))

                                     = (x + 8)

Area of walkway with outdoor = (x + 8)*(x + 8)

                                      = (x^{2} + 16x + 64) ft^{2}

Area of walkway = Area of walkway with outdoor - Area of the square outdoor

                            = ( x^{2} + 16x + 64) - x^{2}

                            = 16x + 64

Area of walkway = 16(x+4) ft^{2}

7 0
3 years ago
Prove (cosx+cosy)^2+(sinx-siny)^2 = 2+2cos(x+y)
hram777 [196]
<span>Here you go:
1) Applying (a + b)² = a² + b² + 2ab, 
(cosx + cosy)² = cos²x + cos²y + 2cos(x)*cos(y) and 
(sinx + siny)² = sin²x + sin²y + 2sin(x)*sin(y) 

2) ==> (cosx + cosy)² + (sinx + siny)² =  
= (cos²x + sin²x) + (cos²y + sin²y) + 2{cos(x)cos(y) + sin(x)sin(y)} 
= 2 + 2{cos(x - y)} = 2[1 + cos(x - y)]  
= 2*2cos²{(x - y)/2} [Multiple angle identity, 1 + cos(2A) = 2cos²A] 
= 4*cos²{(x - y)/2} [Proved]</span>
7 0
3 years ago
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