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STALIN [3.7K]
4 years ago
14

Evaluate the expression when x = –8.

Mathematics
2 answers:
Harrizon [31]4 years ago
7 0
7×-8= -56
-56+5= -51
B. 51
kotykmax [81]4 years ago
5 0
The answer is D
7(-8)+5 = -51
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It takes 282828 minutes for 777 people to paint 777 walls. How many minutes does it take 141414 people to paint 141414 walls?
LuckyWell [14K]

Complete Question

It takes 28minutes for 7 people to paint 7 walls. How many minutes does it take 14 people to paint 14 walls?

Answer:

28 minutes

Step-by-step explanation:

It takes 28minutes for 7 people to paint 7 walls.

Hence, the today number of minutes for 1 person to paint the wall =>

7 people = 28 minutes

1 person = 28 minutes × 7 people =

198 people minutes = 7 walls

1 wall = 198 /7

1 wall = 28 people minutes

How many minutes does it take 14 people to paint 14 walls?

From the above calculation,

1 wall = 28 people minutes

14 walls =

= 14 walls × 28 people minutes/14 People

= 28 minutes

Therefore, it would take 28 minutes for 14 people to paint 14 walls.

6 0
3 years ago
What is the cost per pound of oranges according to the graph?
iris [78.8K]
Ma’am the answer is 8



Please finis
5 0
3 years ago
Read 2 more answers
A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Listed below are the amounts of m
nignag [31]

Answer:

Confidence Interval: (0.44,1.00)

Step-by-step explanation:

We are given the following data set:

0.60, 0.74, 0.09, 0.89, 1.31, 0.51, 0.94

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{:5.08}{7} = 0.725

Sum of squares of differences = 0.8809

S.D = \sqrt{\frac{0.8809}{6}} = 0.383

90% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 6 and}~\alpha_{0.10} = \pm 1.943  

0.725 \pm 1.943(\frac{0.383}{\sqrt{7}} ) =0.725 \pm 0.2812 = (0.44,1.00)

No, it does not appear that there is too much mercury in tuna​ sushi.

5 0
4 years ago
Manuel's portfolio includes 66 shares of Dell, 95 shares of Coca Cola, and 180 shares of Nike. If Dell pays a yearly dividend of
KengaRu [80]
We are going to take out the dividends step by step:
 Dell:
 (66) * (1.79) = 118.14 $
 Coca Cola:
 (95) * (2.62) = 248.9 $
 Nike:
 (180) * (1.18) = 212.4 $
 Adding the three dividends we have:
 118.14 + 248.9 + 212.4 = 579.44 $
 Answer: 
 Manuel does receive 579.44 $ in dividends every year
7 0
4 years ago
the amount of energy it takes to lift a box might be a function of which of the following? the shape of the box , the weight of
ELEN [110]
Weight of the objects inside the box
Work= Force times distance (parallel)

8 0
3 years ago
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