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Diano4ka-milaya [45]
4 years ago
14

Solve 8 x -22 = -7 (x+1)

Mathematics
2 answers:
wolverine [178]4 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

8x - 22 = -7 (x+1)

8x - 22 = -7x - 7

15x = 15

x = 1

worty [1.4K]4 years ago
3 0
8x - 22 = -7x - 7
Add -7 on both sides and you’ll get 15x - 22 = -7 add 22 on both sides and you’ll get 15x = 15 and you’ll get x= 1
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I need help on this :( pls help me
Musya8 [376]

Answer:

3.

x^{2}  - x - 12\\x^{2}  - 4x + 3x -12\\x(x -4)+3(x-4)\\(x+3)(x-4)

4.

x^{2} -8x +12\\x^{2} -6x -2x +12\\x(x-6)-2(x-6)\\(x-2)(x-6)\\

7 0
3 years ago
There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up rows of seat
aalyn [17]
Now, to find how many people are not there, all you have to do is subtract the amount of seats and the people there.
112- 70= 42
Now since there are 7 seats per row and 42 is divisible by 7, you can divide 42 by 7.
42÷7= 6
So, 6 rows were empty.
3 0
3 years ago
Read 2 more answers
Angle MNO is formed by segments MN and NO on the following coordinate grid:
Eva8 [605]

Answer:

I am 90% sure that the answer is M'N'O' is 90*

Step-by-step explanation:

A line segment MN is shown as M = -1,1 and N= -5,4 this makes a diagonal line across the grid. Another line segment NO is shown with O as ordered pair negative 1, 4. Angle MNO is rotated 90 degrees counterclockwise about the origin to form angle M′N′O′. this is where the angles meet, Rotating the shape (or the angles) does not change the degree of the angle of the shape. I am 99% sure that an 90* angle would be formed. but im just in middle school so what do i know?

6 0
3 years ago
Read 2 more answers
The price-demand and cost functions for the production of microwaves are given as
Nikolay [14]

Answer:

<u>ALTERNATIVE 1</u>

a. Find the profit function in terms of x.

P(x) = R(x) - C(x)

P(x) = (-60x² + 275x) - (50000 + 30x)

P(x) = -60x² + 245x - 50000

b. Find the marginal cost as a function of x.

C(x) = 50000 + 30x

C'(x) = 0 + 30 = 30

c. Find the revenue function in terms of x.

R(x) = x · p

R(x) = x · (275 - 60x)

R(x) = -60x² + 275x

d. Find the marginal revenue function in terms of x.

R'(x) = (-60 · 2x) + 275

R'(x) = -120x + 275

The answers do not make a lot of sense, specially the profit and marginal revenue functions. I believe that the question was not copied correctly and the price function should be p = 275 - x/60

<u>ALTERNATIVE 2</u>

a. Find the profit function in terms of x.

P(x) = R(x) - C(x)

P(x) = (-x²/60 + 275x) - (50000 + 30x)

P(x) = -x²/60 + 245x - 50000

b. Find the marginal cost as a function of x.

C(x) = 50000 + 30x

C'(x) = 0 + 30 = 30

c. Find the revenue function in terms of x.

R(x) = x · p

R(x) = x · (275 - x/60)

R(x) = -x²/60 + 275x

d. Find the marginal revenue function in terms of x.

R(x) = -x²/60 + 275x

R'(x) = -x/30 + 275

7 0
3 years ago
Given h(x) = |x+3| -5
statuscvo [17]

Answer:

The parent function f(x) is equal to f\left(x\right)=\left|x\right|

The translations is 3 units to the left and 5 units down

Step-by-step explanation:

we have

h\left(x\right)=\left|x+3\right|-5

The vertex of the function h(x) is the point (-3,-5)

we know that the parent function f(x) is equal to

f\left(x\right)=\left|x\right|

The vertex of the function f(x) is the point (0,0)

so

The rule of the transformation of f(x) to h(x) is equal to

(x,y) -----> (x-3,y-5)

That means ----> The translations is 3 units to the left and 5 units down

4 0
4 years ago
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