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3 years ago

A weatherman predicted 8 inches of snow would fall last night.

Mathematics

1 answer:

icang [17]3 years ago

6 0

Answer:60%

Step-by-step explanation:

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What is -2t-5t ? is it -7t or is it something else?

Amiraneli [1.4K]

Answer:

-7t

Step-by-step explanation:

you are correct

5 0

3 years ago

The table displays the frequency of scores for a calculus class on an exam. The mean of the exam scores is 3.5. Score 1 2 3 4 5

vladimir1956 [14]

Answer:

f=11

Mode=4

Median=4

Explanation:

We are given that

a.Mean of the exam score, $\bar x$ =3.5

Score(x) frequency C.F

1 1 1

2 3 4

3 f 15(4+f=4+11)

4 13 28

5 4 32

$\sum f_i=1+3+f+13+4=21+f$

$\sum f_ix_i=1(1)+2(3)+3(f)+4(13)+5(4)=1+6+3f+52+20=79+3f$

$(\bar x)=\frac{\sum f_ix_i}{\sum f_i}$

Using the formula

$3.5=\frac{79+3f}{21+f}$

$73.5+3.5f=79+3f$

$3.5f-3f=79-73.5$

$0.5f=5.5$

$f=\frac{5.5}{0.5}=11$

b.Mode:The number which is repeat most times .

4 repeat most times

Hence, mode of all exam scores=4

N=32

N is even

$Median=\frac{(\frac{n}{2})^{th}+(\frac{n}{2}+1)^{th}}{2}$

Median= $\frac{16th+17th}{2}=\frac{4+4}{2}=\frac{8}{2}=4$

7 0

3 years ago

A. Identify the error. *

Nadya [2.5K]

Answer:

The answer is C. 8x-2

This is because the total no. Of jars is 8 x no. Of boxes = 8x

2 jars are removed

So what is left over is y = 8x - 2

Hope this helps!

3 0

3 years ago

So i'm confused.

ladessa [460]

Use order of operations... PEMDAS - the order you should attack all math problems.

Parentheses
exponents
multiplication
division
addition
subtraction

So you have to do the exponent THEN the multiplication

3a^2 =
3*8^2 =
3 * 64 =

192

4 0

3 years ago

To amend the U.S. Constitution, 3/4 of the 59 states must approve the amendment. If 35 states approve an amendment, will the con

Dominik [7]

Answer:

Step-by-step explanation:

3/4 of 59 is 44.25. More than 44 states need approve the constitution to be amended

8 0

3 years ago

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