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statuscvo [17]
3 years ago
14

HURRY I'LL PICK A BRAINLIEST!!!

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
6 0
K = 4a+9ab
k = a(4+9b)
k/(4+9b) = a
a = k/(4+9b)

None of the answer choices match what I got, so I'm thinking there's a typo. Perhaps choice A is supposed to say a = k/(4+9b) since that seems like the closest
Ber [7]3 years ago
6 0

Answer:

Step-by-step explanation:

A

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When conducting a significance test in practice, how should you choose the alpha level?.
iVinArrow [24]

The alpha level should always be set to 0.05.

The supplied statement;

How should you select the alpha() level when doing a significance test in practice,

⇒ Use a higher alpha when the consequences of wrongly rejecting the null hypothesis are more severe. Select alpha () = 0.05 in every situation since it is the best option. Use a smaller alpha when the consequences of wrongly rejecting the null hypothesis are more severe.

To learn more about significance test click here:

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6 0
1 year ago
What is the improper fraction for 8 and 3/47​
erastovalidia [21]

Answer:

379/47

Step-by-step explanation:

1.  Simplify

2. Reduce fraction to lowest terms

1 is the greatest common divisor of 3 and 47. The result can't be further reduced.

3.  Convert mixed number to improper fraction

4 0
2 years ago
Read 2 more answers
F has 10 more marbles than I. Both boys have 15 marbles combined. How many marbles does each boy have?
olganol [36]

Answer:

F has 10 marbles and I has 5 marbles.

Step-by-step explanation:

First, I subtracted 10 from 15 since F has 10  more marbles than I. When I subtracted I got 5.

Hope this helps!!!!

4 0
3 years ago
Suppose that you earned a​ bachelor's degree and now​ you're teaching high school. The school district offers teachers the oppor
stepan [7]

Answer:

Step-by-step explanation:

Answer:

a. The amount that is saved at the expiration of the 5 year period is $22,769.20¢

b. The amount of interest is $2,769.20¢

Step-by-step explanation:

Since the amount that is deposited every year for a period of five years is $4,000 and the rate of the interest is 6.5%. We can always calculate the amount that is saved at the expiration of the five years.

    We will first state the formula for calculating the future value of annuity:-

      Future value of annuity =

                      P[\frac{(1 + r)^{t}-1 }{r}]

   Where P is the amount deposited per year.

   r is the rate of interest

   t is the time or period

 

    and in this case, the actual value of P = $4,000

      rate of interest, r is 6.5% = 0.065

      time, t is 5 years.

   Substituting e, we have:

   Fv of annuity =

                          4,000[\frac{(1 + 0.065)^{5}-1 }{0.065 }]

   = 4,000 × [((1.065)^5)- 1/0.065]

 = 4,000 × [(1.37 - 1)/0.065]

 = 4,000 × (0.37/0.065)

 = 4,000 × 5.6923

 = $22,769.20¢

a. Therefore the amount that is saved at the end of the five (5) years is $22,769.20¢

b. To find the interest, we will calculate the amount of deposit made during the period of five years and subtract the sum from the current amount that is saved ($22,769.29¢).

  Since I deposited 4,000 every year for five years, the total amount of deposit I made at the period =

       4,000 × 5 = $20,000

  The amount of interest is then = $22,769.20¢ - $20,000 = $2,769.20¢

3 0
3 years ago
Which radical expressions are equivalent to 7 5/4
Troyanec [42]

Answer: = √(22·2) (x2·x) y2 (z4. z) EXAMPLE Put 3√24 x6 y5 z10 in standard form. EXAMPLE Put 3√− 2 x11 y4 in standard form. EXAMPLE Put 4√64 x4 y10 in standard form. DEFINITION Radical expressions are said to be similar when they have the same radical index and the same radicand. EXAMPLES 1. The redial expressions 3 √2 and 5 √2 are similar. 2.

Step-by-step explanation:

Yw and mark me brainiest

4 0
2 years ago
Read 2 more answers
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