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3 years ago

When did the United States first establish its measuring system, and who was responsible for

Mathematics

1 answer:

Dimas [21]3 years ago

8 0

Answer:

1975 Thomas Jefferson

Step-by-step explanation:

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125% of what number is 80?<br> Oa 36<br> Oь 40<br> Os 64<br> Od 72

Mnenie [13.5K]

Answer:

d. 72

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Graph the system of inequalities. Then use your graph to identify the point that

Alona [7]

Answer:

Step-by-step explanation:

b it is b just do what u think is right because i think u can do it no matter what

8 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

Please help me fast. Trying to figure this out. Answer a-C. You don’t need to explain

dlinn [17]

Answer:

The value of b would be $25 since it's the initial amt. The value of m would be $8. The equation would be y=8x+25

7 0

2 years ago

Dorado County, which has a population of about 6,720, is divided into 4 townships. About 1/4

Ostrovityanka [42]

Density of population = total population / area of the township

Emerson township:
Population of Emerson = 6720 * (1/4)
= 1680
Density of population = 1680 /344
= 5 per square miles

Franco township:
30% of 1680 = 0.3 * 1680 = 504
Population = 1680 + 504
= 2184
Density = 2184/512
= 4 per square mile

8 0

2 years ago