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3 years ago

Can someone help me with 20

Mathematics

1 answer:

Alexxandr [17]3 years ago

7 0

D is subset of Z, so D∩Z=D. hope it helps.

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7 to the negative 3rd porwer times 7 to the negative 2nd porwer times 2 the 0 power divided by 7 to negative 1st power times 7 t

Jobisdone [24]

oof

remember some rules

(a/b)(c/d)=(ac)/(bd)

$\frac{x^a}{x^b}=x^{a-b}$

$x^0=1$

$(x^a)(x^b)=x^{a+b}$

$x^{-a}=\frac{1}{x^a}$

$\frac{(7^{-3})(7^{-2})(2^0)}{(7^{-1})(7^{-4})(2^3)}=$

$\frac{(7^{-3-2})(2^0)}{(7^{-1-4})(2^3)}=$

$\frac{(7^{-5})(2^0)}{(7^{-5})(2^3)}=$

$(\frac{7^{-5}}{7^{-5}})(\frac{2^0}{2^3})=$

$(7^{-5-(-5)})(2^{0-3})=$

$(7^0)(2^{-3})=$

$\frac{1}{2^3}=$

$\frac{1}{8}$

7 0

3 years ago

May i please have some help

fomenos

Answer: Help with what

Step-by-step explanation:1 + 1 = 2

3 0

3 years ago

What’s the slope and y intercept of all of them

Anestetic [448]

Answer:

See below:

Step-by-step explanation:

Take the difference between y values of any two values and divide by difference in corresponding x values

for example, 1: 66-50/4-1=16

2. 36-30/8-6= 6/2=3

3. 63-56/8-7= 7/1 = 7

4. 100-78/9-7= 22/2 = 11

you can choose any two points, not just the two I used.

3 0

3 years ago

U.s cities grew quickly during the early 1800s because:

ozzi

Answer:

The industrialization of the late nineteenth century brought on rapid urbanization. The increasing factory businesses created many job opportunities in cities, and people began to flock from rural, farm areas, to large urban locations. Minorities and immigrants added to these n

3 0

3 years ago

Read 2 more answers

Express the fractions 1/2, 3/16, and 7/8 with an LCD

UkoKoshka [18]

LCD of 2 16 and 8 is definitely 16.

1/2 = (1/2)*(16/16) = 8/16

3/16 = (3/16)*(16/16) = 3/16

7/8 = (7/8)*(16/16) = 14/16

5 0

3 years ago