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mylen [45]
2 years ago
13

Solve for x. -3(3x+3)= -2x+5

Mathematics
2 answers:
Nataliya [291]2 years ago
8 0

-9x-9=-2x+5

Then add 9+14

-9x=-2x+14

Then add 2+-9

-7x=14

So x=-2

notsponge [240]2 years ago
4 0

Answer:

x = -2

Step-by-step explanation:

So we are given the equation -3(3x + 3) = -2x + 5 and we are solving for x. We will have to try to get the equation into the form x = _. That would be our answer.

-3(3x + 3) = -2x + 5

Distribute the -3 on the left side.

-9x - 9 = -2x + 5

Add 2x to both sides to get rid of the -2x on the right side.

-9x - 9 + 2x = 5

Simplify.

-7x - 9 = 5

Add 9 to both sides to get rid of the - 9 on the left side.

-7x = 5 + 9

Simplify.

-7x = 14

Divide both sides by -7 to get rid of the coefficient of -7 on the left side.

x = 14 ÷ (-7)

Simplify.

x = -2

The answer is x = -2.

I hope you find my answer helpful. :)

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A) 1.00

Just look at where the slope crosses 2 miles and then look left on the y-axis where the price is given
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2 years ago
Use the given facts about the functions to find the indicated limit.
Yuki888 [10]

Answer:

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Step-by-step explanation:

3 0
3 years ago
I am the number of red tiles in a design with red and blue tiles. The red tiles each have 3 sides. The blue tiles each have 5 si
nekit [7.7K]
If each blue tile has 5 sides and you know you have 3 blue tiles you can multiply 5 by 3
5 x 3 = 15 sides


Next you know the total number of sides is 30 and you just figured out that your 3 blue tiles have a total of 15 sides so you can subtract 15 from 30 to find how many sides are left
30 - 15 = 15sides

Since you know that these are not blue tiles because in the question it stated that you have 3 blue tiles. These have to be sides for red tiles.

Each red tile have 3 sides so you can divide 15 by 3
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8 0
2 years ago
News article reports that "Americans have differing views on two potentially inconvenient and invasive practices that airports c
OverLord2011 [107]

Answer:

1) p1=0.83

2) p2=0.81

3) Option B

4) p=0.82

5) s=0.03

6) z=0.67

7) P=0.50

8) Do not reject H0

Step-by-step explanation:

1) The proportion of Republicans who think the full-body scans should be applied in airports is equal to the ratio between the republicans that think it should over the total Republicans in the poll:

p=X/n=258/311=0.83

2) The proportion of Democrats who think the full-body scans should be applied in airports is equal to:

p=X/n=294/363=0.81

3) As we want to know if there is a difference in the proportions calculated, not if one is higher or lower than the other, the correct option is B:

H_0:p_1-p_2=0\\\\H_a:p_1-p_2\neq0

4) The pooled estimate of a proportion is the average of both proportions:

\bar{p}=\frac{p_1+p_2}{2}= \frac{0.83+0.81}{2}=0.82

5) The standard error can be calculated as:

s=\sqrt{\frac{\bar{p}(1-\bar{p})}{n_1} +\frac{\bar{p}(1-\bar{p})}{n_2}} \\\\s=\sqrt{\frac{0.82*0.18}{311} +\frac{0.82*0.18}{363}} \\\\s=\sqrt{0.00047+0.00041} =\sqrt{0.00088}=0.03

6) The z-statistic can be calculated as:

z=\frac{p_1-p_2}{s}=\frac{0.83-0.81}{0.03}=\frac{0.02}{0.03}=0.67

7) The P-value for z=0.67 is P=0.50 (from the standard normal distribution table).

2P(Z>|z|)=0.50286

8) If the significance level is 0.01, the P-value is bigger than the significance level. The effect is not significanct. The null hypothesis is not rejected.

There is not enough evidence to say that both proportions are different.

A. Do not reject H0

8 0
2 years ago
5x - 2y = 3
svlad2 [7]

Answer: Your answer is c

Step-by-step explanation:  The first thing you can do is add the two equations together to cancel out x

5x-2y=3

-5x+4y=9

added them together will get us 2y=12, from here divide 2 and get y=6

Plug 6 into the first equation and solve for x.

5x-2(6)=3

5x-12=3, add 13 to the other side

5x=15, divide 5 and get the answer

x=3

5 0
2 years ago
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