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inessss [21]
2 years ago
12

Help me please I really need it

Mathematics
1 answer:
Dmitrij [34]2 years ago
5 0

y = - 2x + 7; slope m = -2

Parallel lines, slope is the same

So y = -2x + b

b = y + 2x

Passing thru (4 , 1)

Plug in

b = 1 + 2(4)

b = 9

Equation

y = - 2x + 9

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Solve the equation. Round to the nearest thousandth. -12e-x + 8 = 7​
Marysya12 [62]

Answer:

-12e-x + 8 = 7

-12e-x = 7-8

-12e-x = -1

12e-x = 1

e-x = 1/12

ln(e-x) = ln(1/12)

x = -ln(1/12)

x = -2.485

7 0
2 years ago
What is 159as a percent
11Alexandr11 [23.1K]

Answer:

159 as a percent = 15900%

Brainiest if helpful!

Step-by-step explanation:

To convert 159 to percent multiply 159 by 100. The result is 15900 percent, or, using the percent sign, 15900 %. Put simply, to change 159 to % move the ″.″ two places to the right.

5 0
3 years ago
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Find the value of x. Write your answer in simplest form.
Brilliant_brown [7]

Answer:

by using Pythagoras theorm

{x}^{2}  +  {x}^{2}  =  {(9 \sqrt{2)} }^{2}  \\ 2 {x}^{2}  = 81 \times 2 \\ 2 {x}^{2}  = 162 \\  {x}^{2}  = 81 \\ x =  \sqrt{81}  \\ x = 9

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
-2(x+2)=-12 .............
Dima020 [189]

Answer:

x=4

Step-by-step explanation:

-2(x+2)=-12

x+2=-12/-2

x+2=6

x=6-2

x=4

6 0
3 years ago
a crane lifts a pallet of concrete blocks 9 ft from the back of the truck. the truck drives away and the crane lowers the pallet
goblinko [34]
Answer:
The final position is 5 feet below the back of the truck
Step-by-step explanation:
* Lets explain how to solve the problem
- A crane lifts a pallet of concrete blocks 8 feet from the back of
a truck
- The crane lowers the pallet 13 feet after the truck drives away
- Assume that the zero level of the position of the ballet of concrete
blocks is the back of the truck
∵ The crane lifts the pallet of concrete blocks 8 feet from the back
of the truck
- That means it take the pallet from zero to 8
∴ The height of the pallet of concrete blocks is 8 feet over
the starting position
∵ The crane lowers the pallet of concrete blocks 13 feet
- That means the crane lower the pallet from the height 8 and
lift it down 13 feet, so we must to take out from the 8 feet the
13 feet to find the final position of the pallet of concrete blocks
∴ The pallet position is ⇒ 8 - 13 = -5
∴ The position of the pallet of concrete blocks is 5 feet below the
starting position which is the back of the truck
* The final position is 5 feet below the back of the truck
8 0
3 years ago
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