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taurus [48]
4 years ago
11

Hello I would like to know how did you get 143 3/8

Mathematics
1 answer:
Katarina [22]4 years ago
7 0

Answer:

142 3/8

Step-by-step explanation:

45 + 42 = 87

87 + 54 = 141

7/8 + 3/8 = 1 2/8

1 + 141 = 142

2/8 + 1/8 = 3/8

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Which of these pairs are like terms?<br><br> 17, 3x<br> 20x, 0.8x<br> 0.5x, 0.5y<br> 14x, 14
sukhopar [10]
B. 20x and .8x because they have the same variable
4 0
3 years ago
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What is the slope of the line that passes through the points ( −8,−1) and (-12,-2)
omeli [17]

Answer:

1/4

Step-by-step explanation:

We can find the slope of a line given two points from the formula

m = (y2-y1)/(x2-x1)

   = (-2--1)/(-12--8)

   = (-2+1)/(-12+8)

    =-1/-4

   = 1/4

6 0
3 years ago
The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what
harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

\mu=25,\sigma=4,x_1=20,x_2=30

The z-score formula is given by

z-\text{score}=\frac{x-\mu}{\sigma}

For x_1=20

z_1=\frac{20-25}{4}\\\\z_1=-1.25

For x_2=30

z_2=\frac{30-25}{4}\\\\z_2=1.25

Now, we find the corresponding probability from the standard z score table.

For the z score -1.25, we have the probability 0.1056

For the z score 1.25, we have the probability 0.8944

Therefore, the percent of the trees that are between 20 and 30 years old is given by

0.8944 - 0.1056

= 0.7888

=78.88%

6 0
4 years ago
Read 2 more answers
What is the common ratio for this sequence? Hurry!!!!!
valina [46]
A common ratio for that sequence is r = 5/1
6 0
3 years ago
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Solve for x I need help on this question
AlexFokin [52]

Answer:

x\approx7.8

Step-by-step explanation:

In relation to the given angle, we are given the triangle's opposite side and hypotenuse. Therefore, we use the sine function to set up a proportion and solve for the opposite side:

sin(\theta)=\frac{opposite}{hypotenuse}

sin(23^\circ)=\frac{x}{20}

20sin(23^\circ)=x

x=20sin(23^\circ)

x\approx7.8

Therefore, the length of the opposite side is about 7.8 units

3 0
2 years ago
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