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3 years ago

Solve −2(2x + 5) − 3 = −3(x − 1).

2 answers:

7 0

X=-16 -2(2x+5)-3=-3(x-1) (-4x-10)-3=-3x+3 -4x-13=-3x+3 Move -13 to the right side by adding it to +3 and itself to cancel the original -13 out, and move -3x to the left side by adding it to -4x and itself to cancel the original -3x out -4x+3x=3+13 -1x=16 Divide -1 from both sides x=-16

harkovskaia [24]3 years ago

5 0

- - Solve for "x"

Steps:
You need to simplify for both sides of your equation
Then add your "3x" to both of the sides of the problem
Now add 13 to both sides
and then final step is to divide both sides by "-1"

Final answer:

x= -16

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Please help:) thank you

Delvig [45]

The answer is slope

6 0

3 years ago

Find the area of the polygon with the given vertices x(2,4) y(0,-2) z(2,-2)

weeeeeb [17]

Answer:

Step-by-step explanation:

b = 2 units

h = 6 units

A=1/2 *b*h

= 1/2 *6*2

= 6

8 0

2 years ago

100 POINTS!!!!!!!!

yawa3891 [41]

Form the confidence level (99%), we calculate the "alpha" value

alpha=1-(99/100)=0.01

Now, calculate the critical probability (p-start)

p*=1-(alpha/2)=1-(0.01/2)=0.995

z-score could be calculated from p*,,,

z-score=2.57583

Now, calculate the Margin of Error:

standard deviation = s

number of adults = n

ME=(z*s)/(sqrt n)=(2.57583*12)/(sqrt 250) = 1.955

The confidence interval = mean +or- ME

= 70+1.955 or 70-1.955

So that we can conclude that the 99% confidence interval for the mean beats per minute is 68.045 and 71.955

I hope you got the idea!

5 0

3 years ago

Read 2 more answers

How many times bigger is 10 to the 11th power than 10 to the 3rd power?

Lapatulllka [165]

10^11 is 100,000,000,000

10^3 is 1000

1,10,100,1000,10000,100000,1000000,100000000,100000000000.

I think it might be 4 times bigger

5 0

3 years ago

A line passes through the point (-8, 7) and has a slope of negative 3/4Write an equation in slope-intercept form for this line.

Arlecino [84]

Answer:

$y=-\frac{3}{4}x+1$

Step-by-step explanation:

We do not have enough information for slope intercept form. But we can use the point-slope formula to find the information. The formula is $y -y_{1} =m(x -x_{1})$ where we substitute a point (x,y) for $(x_{1},y_{1})$ .