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3 years ago

Help!! please explain as well!! Thx!

Mathematics

1 answer:

KiRa [710]3 years ago

8 0

Answer:

Check my steps.

Step-by-step explanation:

So there are 125 total in the driver safety course.

There are 28 accidents.

28 / 125

0.224

So... when you round it down, you get 0.

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Which equation represents the values shown in the table?

konstantin123 [22]

Answer:

if y =50 then x = 10 ......... option d

8 0

3 years ago

Read 2 more answers

The 225 students who passed all of their classes on the last report card will attend a one-hour Friday Fun-Day sponsored by the

zhenek [66]

Answer:

C. is incorrect.

Step-by-step explanation:

Calculate the percentages for each prize desired by the 50 students responding in the sample survey. See the attached image for this calculation. Multiply these percentages times the total student body of 225 students to determine the likely selection for each prize (on the attachment).

A. is correct (126 students)

B. is correct

C. is incorrect. The total is (54 + 27) = 83

D. is true

8 0

3 years ago

SOMEONE PLEASE HELP!! i need it due right now!

yanalaym [24]

A) a=8
B) b=1/8
C) c=13/5
D) d=13/50

6 0

3 years ago

Read 2 more answers

The hypotenuse of an isosceles right triangle is 16 centimeters. Find the length of the 2 other sides of the triangle to the nea

scZoUnD [109]

Right triangle means we can use a^2+b^2=c^2
isosceles means 2 sides are equal legnths

the hypotenuse is normally the longest side so the equal sides are the other sides so therefore
a=b
therefor
(a^2)+(a^2)=c^2
2(a^2)=16^2
2(a^2)=256
divde both sides by 2
a^2=8
the side legnth of the other 2 sides is the square root of 8 which is aprox 2.8284271247452
but we only want the tenth so we look at the hundreths as well
2.82
round to the nearest tenth
2.8 cm is the answer of the legnths

4 0

3 years ago

A cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled.

aniked [119]

Answer:

Step-by-step explanation:

given that

A cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled.

Each box of cereal is supposed to contain 13 ounces of cereal.

A random sample of 31 boxes is tested.

The average weight is 12.58 ounces and the standard deviation is 0.25 ounces.

Sample mean = 12.58

Sample std deviation = 0.25

Sample size = 31

Sample std error = $\sqrt{\frac{0.25}{\sqrt{31} } } \\=0.0449$

confidence interval can be calculated using t critical value because population sd is not known.

df = 30

t critical for two tailed = 1.697

Margin of error = $1.697*0.0449\\=0.07620$

conidence interval = $(12.58-0.0762, 12.58+0.0762)\\=(12.5038, 12.6562)$

Since this does not contain 13 oz. we reject the claim that each box contains exactly 13 oz.

4 0

4 years ago