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Serhud [2]
3 years ago
11

Simplify the expression: 2/3 divided by -4 minus (1/6 - 8/6)​

Mathematics
1 answer:
guapka [62]3 years ago
5 0

Answer:

1

Step-by-step explanation:

\frac{2}{3}  \div  - 4 - ( \frac{1}{6}  -  \frac{8}{6} )

-  \frac{2}{3}  \times  \frac{1}{4}  - ( -  \frac{7}{6} )

-  \frac{1}{3}  \times  \frac{1}{2}  +  \frac{7}{6}

-  \frac{1}{6}  +  \frac{7}{6}

\boxed{\green{= 1}}

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You need to figure out how much money you make each week at the sales job. Assume you work a
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Answer:

This true because why ?

Step-by-step explanation:

3 0
3 years ago
A window in the shape of a rectangle as shown below has a width of x+5 and a length of x^2- 3x+7 express the area of the rectang
Ksju [112]

Answer:

x^3+x^2-5x+28

Step-by-step explanation:

since a=lw, the area is (x^2-3x+7)(x+4)

1. distribute parentheses \left(x^2-3x+7\right)\left(x+4\right)=x^2x+x^2\cdot \:4+\left(-3x\right)x+\left(-3x\right)\cdot \:4+7x+7\cdot \:4

2. apply +(-a)=-a rule x^2x+4x^2-3xx-3\cdot \:4x+7x+7\cdot \:4

3. Simplify

    Steps to simplify:

x^2x=x^3

3xx=3x^2

3\cdot \:4x=12x

7\cdot \:4=28

x^3+4x^2-3x^2-12x+7x+28

4. Add like terms =x^3+4x^2-3x^2-5x+28

5. Add like terms =x^3+x^2-5x+28

6 0
3 years ago
The percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-sha
xxMikexx [17]

Answer:

a. The empirical rule.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed(bell-shaped) random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

So the correct answer is:

a. The empirical rule.

3 0
3 years ago
Which of the following is a solution to the equation x - 5/7 = -3/7
podryga [215]

Solve the equation:

          5              3
x  –  ——  =  –  ——
          7              7


           5
Add  ——  to both sides, so you get  x  isolated at the left-hand side:
           7

          5          5               3          5
x  –  ——  +  ——  =  –  ——  +  ——
          7           7              7           7

              3          5
x  =  –  ——  +  ——
              7           7


Now, add those fractions at the right-hand side of the equation:

          – 3 + 5
x  =  —————
               7

          2
x  =  ——     <———    this is the answer (first option:  2/7).
          7


I hope this helps. =)

8 0
3 years ago
An investment grows by 3% per year for 20 years. By what percent does it increase over the 20 year period?
Y_Kistochka [10]
3%?? The question doesn't make much sense.
7 0
3 years ago
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