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sashaice [31]
3 years ago
8

What is the sum of (8a+2b-4) and (3b-5)

Mathematics
1 answer:
Yuki888 [10]3 years ago
7 0

Answer:

8a+5b-9

Step-by-step explanation:

(8a+2b-4)+(3b-5)

8a+2b+3b-4-5

8a+5b-9

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Find the length of WR<br><br>If M &lt;WCR = 49 and CR = 7. What is WR
UkoKoshka [18]
We know that
if ∠WCR=49°
then 
measure arc WR=49°-------> by central angle

circumference C=2*pi*r
for r=7 in
C=2*pi*7-----> 43.96 in

if 360°(full circle) has a length of----------> 43.96 in
 49°---------------> x
x=49*43.96/360-----> x=5.98 in

alternative method 
applying the formula
L=(∅/360°)*2*pi*r
where
∅ is the angle in degrees
r is the radius
L=(49°/360°)*2*pi*7------> L=5.98 in

the answer is
5.98 in 
4 0
3 years ago
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Make an input-output table for the function y = 2x - 2 with the domain {1,2,3}.
ki77a [65]
Top boxes:   | X  |   1   |   2   |   3   |
bottom boxes:   |   Y=2X - 2   |   0   |   2   |   4   |
  
4 0
3 years ago
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Jerry bought a coat on sale for 30% off. The sale price for the coat was $63, what is the regular price for the coat?
NNADVOKAT [17]

Answer:

The original regular price for the coat is $90

Step-by-step explanation:

The given information in the question are;

The percentage that was off (removed) from the sale price = 30%

The sale price at which Jerry bought the coat = $63

Whereby the regular price = P, we have;

P - 30% of P = $63

P - 0.3×P = $63

P×(1 - 0.3) = $63

0.7·P = $63

P = $63/0.7 = $90

Therefore, the regular (original) price for the coat = $90

The coat regular price at which the coat is displayed is at $90.

4 0
3 years ago
Which is the completely factored form of 3xsquared<br> -12x-15?
tekilochka [14]

Answer:

3(x - 5)(x + 1).

Step-by-step explanation:

3x^2 - 12x - 15

Dividing through by 3:

= 3(x^2 - 4x - 5)

We need 2 numbers whose sum is -4 and whose product = -5. That is -5 and +1 , so the factors are:

3(x - 5)(x + 1).

7 0
3 years ago
I can’t really afford to lose this...It can help me just need the last answer
nikitadnepr [17]

Answer:

x = 5

Step-by-step explanation:

the angles of a triangle add up to 180°

17x+13x+6x=180

36x = 180

x = 5

6 0
2 years ago
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