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adoni [48]
3 years ago
5

Evaluate the expression for x=1 and y=9 3x+y=

Mathematics
2 answers:
monitta3 years ago
8 0
3+9 = 12…………………………gdss goodnigh
sergejj [24]3 years ago
4 0

Answer:

12

Step-by-step explanation:

x = 1 and y = 9 so 3x1 + 9 = 12 as 3 x 1 is 3 and adding 9 to it will give 12

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The formula for the perimeter, P, of a rectangle is P = 2L + 2w, where L is the length and W is th width sovle the formula for t
vichka [17]

                                 P  =  2L + 2w

Subtract  2L
from each side:          P - 2L  =  2w

Divide each side
by  2 :                        (P - 2L) / 2  =  w

You could also write it as      (P/2  -  L)  =  w
Both answers are the same.

4 0
3 years ago
What is the volume of the figure below?
Alja [10]

Answer:

312

Step-by-step explanation:

Volume of the parallalelepiped:

base x width x height

V = 5 x 4 x 12 = 240

for triangular prism:

base = 8-5 = 3

base area = (base x height)/2 = (3x4)/2 = 6

V = base area x 12

V = 6 x 12 = 72

Total volume = 240 + 72 = 312

7 0
3 years ago
what's the equation for the length of a rectangle is twice its width the perimeter of the rectangle is 126 feet
sveticcg [70]
P = 2l + 2w
p-2w = 2l
p-2w/2 = l

Substitute the perimeter and you should be able to work it out
6 0
3 years ago
5. Original price of concert tickets:$100 . Discount: 21%
lutik1710 [3]

Answer:

Concert ticket now costs $79.

Step-by-step explanation:

21% is being removed from the original cost, in this case, that's $21.  100-21=79. Hope this helps ;)

4 0
3 years ago
Read 2 more answers
SOMEONE ANSWER MY QUESTION PLEASE!!!!!!<br> BRAINLIESTTTTTT
Rina8888 [55]
X intercepts are = 0 and 20
Maximum value = (10,15)

These can simply be read off of the graph. 

The intervals of increasing from x = 0-10 and that shows the ball going up. Decreasing from 10-20 and that is the exact opposite. 

The rate of change is often referred to as slope. The slope for the section described in part B is -1. It can be used by following the slope formula below: 

y2 - y1/x2 - x1

3 0
3 years ago
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