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galina1969 [7]
3 years ago
12

Can someone help me with all 3 questions thanks 10 points a question​

Mathematics
1 answer:
butalik [34]3 years ago
8 0

Answer:

2.) -2x+8

4.) 4x+3

6.)4x-5

Step-by-step explanation:

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A rectangular solid has sides of 10 cm, 6.5cm and 8.3 cm. What is the volume and the surface area?
dangina [55]
Part (1):
Volume of the rectangular prism can be calculated as follows:
volume = length * width * height
We are given the three dimensions, therefore, all we need to do is substitute in the above equation as follows:
volume = 10 * 6.5 * 8.3
volume = 539.5 cm³

Part (2):
Surface area of rectangular prism an be calculated as follows:
Surface area = 2(length*width) + 2(width*height) + 2(length*height)
Surface area = 2(10*6.5) + 2(6.5*8.3) + 2(10*8.3)
Surface area = 130 + 107.9 + 166
Surface area = 403.9 cm²

Hope this helps :)
3 0
4 years ago
Kaytelyn makes $10 an hour and receives weekly bonus of $25. How many hours dose she need to work this week to make more than $2
Ratling [72]

Answer:

$22.5

Step-by-step explanation:

250\leq 10x +25\\225\leq 10x\\x\geq 22.5

3 0
3 years ago
Find the roots of the function f(x) = 3x^4 – 48.
Andru [333]

Answer:

f(x) = 3x^4 – 48.

x=2,-2

Step-by-step explanation:

6 0
3 years ago
Help plss !! Will give branliest to who ever has the best answer
ozzi

Answer:

a c and e hope it helps :D

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
-2(m + 1) = 10. Find the value of m.
satela [25.4K]
-2(m+1)=10

Distributive property

-2m + -2 = 10

Elimination way

-2m + -2 + 2 = 10 + 2

-2m = 12

-2m/-2 = 12/-2

m = -6
4 0
3 years ago
Read 2 more answers
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