All categories

3 years ago

Someone help me please. ASAP!

Mathematics

1 answer:

GrogVix [38]3 years ago

7 0

All you have to do is substitute the numbers in the variables so it would be
14/1-7+4(5)
=14-7+4(5)
But you have to do pemdas so you would start with multiplication so it would be
=14-7+20
=7+20
=27

You might be interested in

Two thousand brown trout are introduced into a small lake. The lake has a volume of 20,000 cubic meters. Use the Poisson table t

katrin [286]

Answer:

Step-by-step explanation:

5 0

3 years ago

What is 0. 72 [REPEATING] as a fraction in simplest form?

Nostrana [21]

The answer is 13/18 because it is congruent to 0.7(2).

6 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

4 years ago

1 and 2 plz help me im nice:)

jek_recluse [69]

Answer:

1. 13

2. 28

Step-by-step explanation:

hope this helps

7 0

3 years ago

Read 2 more answers

How do i work this out please?

Anna [14]

Answer:

$5 \sqrt{5} - 2 \sqrt{5} = 3 \sqrt{5} \\ 8 \sqrt{7} + 3 \sqrt{7} = 11 \sqrt{7}$

hope this helps.

6 0

3 years ago

Read 2 more answers