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3 years ago

How do you solve the radical equation of square root x=10

Mathematics

1 answer:

Dvinal [7]3 years ago

7 0

Answer:

X=100

Step-by-step explanation:

To solve this equation we need to raise it to an exponent equals to the root's index. Which is 2

$(\sqrt{x} =10)^{2}$

$x=100$

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g My Notes Water flows from the bottom of a storage tank at a rate of r(t) = 200 − 4t liters per minute, where 0 ≤ t ≤ 50. Find

Arada [10]

Answer:

4,200 liters

Step-by-step explanation:

The flow rate is given by:

$r(t) = 200 - 4t$

Integrating the flow rate expression from t=0 to t=30 minutes, yields the total volume that flows out of the tank during that period:

$\int\limits^{30}_0 {r(t)} = \int\limits^{30}_0 {(200 - 4t} )\, dt \\V=(200t - 2t^2)|_0^{30}\\V= (200*30 -2*30^2)-(200*0 -2*0^2)\\V=4,200\ liters$

4,200 liters of water flow from the tank during the first 30 minutes.

3 0

3 years ago

A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample

suter [353]

Answer:

The expected frequency for the cell E2,2 is = 33

Step-by-step explanation:

The given data is

Gender | 0-30| 30-60| 60-90| 90+ Totals

Male | 23 | 35 | 76 | 46 180

Female | 31 | 42 | 46 | 16 135

Totals 54 77 122 62 315

The expected frequency for the cell E2,2 is :

Expected for the (30-60 box for females) = Total of (30-6)/ (total )* females

= ( 77/315)135= 33

Here p= 77/315 and n= 135

therefor X= pn = 33

χ²= (33-42)²/33= 2.455 ( for the single value of E2,2=33)

Expected for the (30-60 box for males) = Total of (30-6)/ (total )* males

= ( 77/315)180= 44

χ²= (44-42)²/44= 0.09

The critical region is χ² (0.05) 3 ≥ χ²= 11.34

Let the null and alternate hypothesis be

H0:the number of minutes spent online per day is not related to gender

against

Ha: the number of minutes spent online per day is related to gender

The single value of χ² for E2,2 = 2.45 is less than the critical value of 11.34.

6 0

2 years ago

Harvard University accepts 6 students for every 100 applicants. How many students will be accepted in 850 applicants apply for a

LenKa [72]

Answer:

51 students.

Step-by-step explanation:

First you need to establish a rate 6/100+3/50

8*100=800 6*8=48

3/50

850-800=50 3/50

48+3=51

5 0

2 years ago

Read 2 more answers

Solve: 4 x 11 + 5 x 28 + 4

Zarrin [17]

188

4x11 + 5 x 28 + 4

44 + 140 + 4

188

7 0

1 year ago

Read 2 more answers

If f(x) =2x^2 + 5 and g(x) = x^2 - 2 find (f-g) (x)

zzz [600]

The answer would be 420 this isn’t actually the answer i just need points sorry bruh

7 0

3 years ago