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belka [17]
2 years ago
15

HELP ASAP PLSSSSS SRRYY I JUST NEED ANSWER RNN:(

Mathematics
1 answer:
KIM [24]2 years ago
7 0

Answer:

# 1 - slope = 1/2

# 2 - slope = -5/3

# 5 - slope = 5/3

Step-by-step explanation:

going from where the point crosses at the y-axis it goes up 1 over 2 times

going from where the point crosses the y-axis it goes down 5 over 3

y_2 - y_1 / x_2 - x_1

5 - 0 = 5

4 - 1 = 3

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What is the distance between point A(−1, 3) and point B(−8, 3) ?
balu736 [363]

Answer:

7 units

Step-by-step explanation:

6 0
3 years ago
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A student must leave for campus in 10 mins or he will be late for class. Unfortunately he is snowed in. He can shovel the drivew
Leno4ka [110]
Since if he gets the driveway done in 20 minutes he gets 1/20th of the driveway done in 1 minute (if x=20 then x/20=1 by dividing both sides by 20) and if his brother gets 1/12th of the driveway done in one minute, then if t represents the time it takes to shovel the driveway, t/20+t/12=1 driveway shoveled as 1/20+1/12=amount they can do in 1 minute, so t/20+t/12 is how much they can do in t minutes. Multiplying both sides by 20*12=240, we get 12t+20t=32t=240. Dividing both sides by 32, we get 240/32=7.5 minutes to shovel the driveway.
7 0
3 years ago
the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati
luda_lava [24]

Answer:

The standard deviation of the data set is \sigma = 12.7906.

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}

we use the following formula

                                             \sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }

Step 1: Find the mean \left( \overline{X} \right).

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

                                     Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}

Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

\sum{\left(x_i - \overline{X}\right)^2} = 1472.4

Step 4: Calculate σ using the above formula.

\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }       = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906

3 0
3 years ago
Help what’s the answer
aivan3 [116]

Answer: 2⁴ * 5

<u>Step-by-step explanation:</u>

                    80

                     ∧

                  8    10

                 ∧      ∧

               4  2   2  5

               ∧        

              2  2

80: 2 x 2 x 2 x 2 x 5


7 0
3 years ago
helppppp please James has $32 and earns $10 per week for his allowance. What is the initial value for the scenario described? (4
telo118 [61]

Answer:

Anwser is **42** Because if you add 32 and 10 you end up with 42

Step-by-step explanation:

6 0
2 years ago
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