MATHEMATICS HIGH SCHOOL

Select the statistical questions?How many days are in a year?
How many houses are in your town?
What percent of students like pizza?
What is the average temperature in January?
When does the bank open in the morning?

Answers

Answer 1
Answer: The 3 sounds the most statisticapm

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SOLVE PLS I WILL GIVE BRAINIEST AND 5 STARSSolve for b:

  3.5b + (-8) = (-6.25b) - 6.5

Solve for x:
 
-5x + 3 > (-7x) - 12
​

Answers

Answer:

1)b=0.153846

2)x > -15/2

Step-by-step explanation:

I used this site called math-

way

Solve for m, c, and d.

3m + 4c +7d = 5.45

Answers

3m + 4c +7d = 5.45 => m = (5.45 - 4c - 7d)/3;

One solution is c = -1, d = 0, m =3.15; and so on .........

Answer:

i dont know but good luck

Step-by-step explanation:

sorry tried my best

How much pure alcohol must be added to 400 ml of a 15% solution to make its strength 32%

Answers

Quantity of alcohol =400*15/100 = 60ml
x is pure alcohol which must be added : (x + 60)/(x + 400) = 32/100
100x + 6000 = 32x + 12800 => 68x = 6800 => x = 100
100ml pure alcohol must be added

A sprinkler mounted on the ground sends out a jet of water at a 30o angle to the horizontal. The water leaves the nozzle at a speed of 12 m/s. (a) How far does the water travel before it hits the ground?

Answers

Answer:

12.7m

Step-by-step explanation:

The equation for motion to be used to find how far the water travels is

xf = xi + Vix(t) + 1/2axt^2

xf = 0 + ViCos α(t) + 0

xf = ViCosα(t)

xf = 12 Cos 30°(t)

xf = (6√3)t

To find the total times we will use the vertical displacement equation

yf = yi + Viy(t) + 1/2ayt^2

0 = 0 + ViSinα(t) + (1/2 * (-9.8)t^2)

0 = 12Sin30°(t) - 4.9t^2

4.9t^2 = 12Sin30°(t)

4.9t^2 = 6t

Divide through by t

4.9t = 6

t = 6/4.9

t = 1.22secs

Put t = 1.22 into (6√3)t

xf = 6√3 * 1.22

xf = 12.7m

There it is can someone help me it's a tricky one lol

Answers

15 minutes. 28-13=15

1/10 of 700
1/5 of 700

Answers

(1)/(10)*700= (700)/(10) = 70 \n \n (1)/(5) *700= (700)/(5) =140
1/10=0.1
700x0.1=70

1/5=0.25
700x0.2=140
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A traffic helicopter pilot 60 meters above the road spotted two antique cars. The angles of depression are 10.2 and 8.7 degrees. How far apart are the cars? A. 58.6 B. 392.1 C. 333.5 D. 57.8
Round 32.697 to the nearest hundredths
What is the sum of 2/5 and 2/4?a. 9/10b. 6/7c. 10/20d. 8/20