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3 years ago

Subtract 9a from -15a

Mathematics

2 answers:

miv72 [106K]3 years ago

7 0

Answer:

24a

Step-by-step explanation:

kotegsom [21]3 years ago

5 0

24a if it's wrong correct me in the comments

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Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating c

Lerok [7]

Answer:

Following are the responses to the given choice:

Step-by-step explanation:

For point a:

$H_0: \mu_1 - \mu_2 = 0\\\\ H_1: \mu_1 - \mu_2 < 0$

For point b:

$t = -2.953$

For point c:

$\to p- value = 0.0021$

For point d:

Reject $H_o$ . It could deduce that the pay of higher banking is considerably lower than the pay of higher project management.

7 0

3 years ago

WILL MARK BRAINLIEST!!

Snowcat [4.5K]

15/10 = 18-x/x is the ratio of the larger to the smaller triangle

Cross multiply:
15x = 10(18 - x)
15x = 180 - 10x
25x = 180
x = 7.2

Plug back in to check
15/10 = 1.5

18-7.2/7.2 = 10.8/7.2 = 1.5 :)

6 0

3 years ago

Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming poo

sergey [27]

Answer:

It would take you 5/3 hours, or 1 hour and 40 minutes.

Hope I helped! ☺

7 0

2 years ago

Could anyone help me with this ASAP ?

Ahat [919]

Answer:

Step-by-step explanation:

-3x^4 -9x^3+ 15x^2

-3x^2 ( x^2 + 3x -5)

if you use quadratic formula (see image)

~~~~~~~~~~~~~~~~~~~~~~

10x^3 -35x^2 +6x -21

5x2(2x-7) +3(2x-7)

(5 $x^{2}$ + 3) (2x-7)

3 0

3 years ago

Read 2 more answers

Find the sum that amounts to Rs 9,144 in 3 years at 9% per year simple interest.

Hunter-Best [27]

Given:

Amount = Rs. 9,144

Time = 3 years.

Rate of simple interest = 9%

To find:

The principal value.

Solution:

The formula for simple interest is:

$I=\dfrac{P\times r\times t}{100}$

Where, P is principal, r is the simple rate of interest, and t is the number of years.

Putting $r=9,t=3$ in the above formula, we get

$I=\dfrac{P\times 9\times 3}{100}$

$I=\dfrac{27P}{100}$

$I=0.27P$

We know that,

$\text{Amount}=\text{Principal + Interest}$

$9144=P+0.27P$

$9144=1.27P$

Divide both sides by 1.27, we get

$\dfrac{9144}{1.27}=P$

$7200=P$

Therefore, the principal value is Rs. 7200.

8 0

3 years ago