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Novay_Z [31]
3 years ago
12

Which group was charged the highest rates by the railroads during the late 19th century?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
8 0
The correct answer is D
Vesnalui [34]3 years ago
6 0

Answer:

Its B. Farmers. Not D.

Step-by-step explanation:

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Is 64 a perfect cube?
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It's a perfect square because 8 times 8 equals 64.

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What is the length of the hypotenuse of the right triangle shown below? If necessary, round your answer to the nearest hundredth
kolezko [41]
It is ten units, as the two sides are of 6 and 8 so you must square them both, add them together (which gives you 100) and then square root that, which gives you 10

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The sales tax for an item was $24.50 and it cost $350 before tax. Find the sales tax rate.
Karo-lina-s [1.5K]
Find the number that when multiplied with 350 will give you 24.5. This number happens to be .07 or in terms of sales tax, 7%.
3 0
3 years ago
The value of w varies directly with z. If z = 4, then w = 12. What is the value
IrinaVladis [17]

Answer:

18

Step-by-step explanation:

w varies directly with z, let k be the constant of proportionality, hence this can be represented by the equation:

w = kz

When z = 4, w = 12, hence we need to find the value of the constant of proportionality, substituting:

12 = 4k

Dividing both sides by 4:

12/4 = 4k/4

k = 3

Therefore the equation becomes:

w = 3z

The value of w when z = 6 is given as:

w = 3(6)

w = 18

7 0
3 years ago
Which of these choices show a pair of equivalent expressions? Check all that apply.
AleksAgata [21]
The main rule we use in this exercise is 

( \sqrt{a} ) ^{m} =( a^{ \frac{1}{2}} )^{m} = a^{ \frac{1}{2}*m}=a^{ \frac{m}{2}}

and the more general case: 

(  \sqrt[n]{a}  ) ^{m} =( a^{ \frac{1}{n}} )^{m} = a^{ \frac{1}{n}*m}=a^{ \frac{m}{n}}
Using these rules, we make all the indices, or exponents, look like a^{ \frac{m}{n}}, and compare them to each other.

A. ( \sqrt{8} )^{9} =  (  8^{ \frac{1}{2}}   )^{9} = 8^{ \frac{1}{2}*9}= 8^{ \frac{9}{2}}

B. ( \sqrt{4} ) ^{5} =( 4^{ \frac{1}{2}} )^{5} = 4^{ \frac{1}{2}*5}=4^{ \frac{5}{2}}

C. (  \sqrt[3]{125} ) ^{7} =( 125^{ \frac{1}{3}} )^{7} = 125^{  \frac{1}{3}*7}= 125^{ \frac{7}{3}}

D. ( \sqrt{12} ) ^{7} =( 12^{ \frac{1}{2}} )^{7} = 12^{ \frac{1}{2}*7}=12^{ \frac{7}{2}}
4 0
3 years ago
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