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3 years ago

I will give brainiest to whoever answers correctly !!

Mathematics

1 answer:

Semmy [17]3 years ago

4 0

$157.50 because if you use the simple interest formula (i=p*r*t), you get $157.50. Hope this helped with your homework!!

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An elevator descends into mine shaft at the rate of 6m/min. If the descend starts from 10m above the ground level , how long wil

AnnyKZ [126]

Answer: Hi!

So first, I'm going to convert "350 below ground level" to -350, as this is what "below ground level" represents.

Now, we should find the total distance traveled. Take the absolute value of -350 (350) and add it to 10, the metres above ground level. This is 360.

We already know the rate of travel; 6m/min. All we have to do now is divide the total distance (360) by the rate of travel (6)!

360 ÷ 6 = 60

So, it took 60 minutes, or one hour, for the elevator to travel down the shaft!

Hope this helps!

6 0

2 years ago

This question is kind of confusing and i need help, please and thank you! :)

solong [7]

ummmmmmmm a lot and alot

6 0

2 years ago

Read 2 more answers

Oil leaked from a tank at a rate of r(t) liters per hour. the rate decreased as time passed, and values of the rate at two hour

Galina-37 [17]

The given data is
t, h: 0 2 4 6 8 10
r(t), L/h: 8.6 7.9 6.8 6.4 5.7 5.3

The lower and upper estimates for the total amount that leaked may be computed as the Left and Right Riemann sums.

The shape of the graph of r versus will determine which of the two sums yields an upper or lower sum.
The plot of the graph is shown below.

The Left Riemann sum is
Sl = 2*(8.6+7.9+6.8+6.4+5.7) = 70.8 L

The Right Riemann sum is
Sr = 2*(7.9+6.8+6.4+5.7+5.3) = 64.2 L

Answer:
The lower estimate for oil leakage is 64.2 L
The upper estimate for oil leakage is 70.8 L

4 0

3 years ago

Read 2 more answers

An article included a summary of findings regarding the use of SAT I scores, SAT II scores, and high school grade point average

Harrizon [31]

Answer:

0.156

Step-by-step explanation:

Given that :

% of Explained variance by certain predictors of first year college grade :

SAT 11 scores = 17%

GPA = 15.6%

SAT 1 = 13.3%

Fitting a least squares line :

y = First year college GPA

x = high school GPA

THE r² value which is Coefficient of determination is the percentage of explained variance given by the regression line. The r² value of GPA will the as given above 15.6%

r² = 15.6% = 15.6/100 = 0.156

4 0

2 years ago

What is the mode of the data set 5,7,8,10,12,12

nekit [7.7K]

Answer:

The mode is twelve.

Step-by-step explanation:

The mode of a data set is the number that appears the most often. I've added an attachment so that you might be able to see some examples.

6 0

2 years ago