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Artemon [7]
3 years ago
8

What is the slope of the line that contains the points (-1,9) and (5,21)

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0
Y-y
——-
X-x

21-9=12
5-(-1) =6
So the answer is D
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The circumference of a circle is 28 x inches. What is the length of the radius of this circle?
meriva
Answer: 14



Explanation: The radius is half of the value of the circumference.
4 0
3 years ago
Can somebody explain to me how they got 3^4(x) = 3^3(x+2)? Then explain what happened to the 3 in 3^4 and the 3 in 3^3? Please a
musickatia [10]

Answer:

x=6

Step-by-step explanation:

81^x = 27 ^(x+2)

81 = 3^4    and 27 =3^3  so replace 81 and 27 in the equation

3^4^x = 3^3^(x+2)

When we have a power to a power we can multiply the exponents

a ^b^c = a^(b*c)

3^(4x) = 3^(3*(x+2))

Since the bases are the same, the exponents  have to be the same

a^b = a^c   means b=c

4x = 3(x+2)

Now we can solve for x

Distribute

4x = 3x+6

Subtract 3x from each side

4x-3x = 3x-3x+6

x = 6

3 0
3 years ago
Simplify. 2^5−4⋅3^3<br> 7+(1+100√)
frez [133]

\\ \sf\bull\longmapsto 2^5-4(3^3)

\\ \sf\bull\longmapsto 32-4(27)

\\ \sf\bull\longmapsto 32-108

\\ \sf\bull\longmapsto -76

7 0
2 years ago
(-4k4 + 14 + 3k?) + (-364 - 14k - 8)
zepelin [54]

Answer:

it equals 38 because eit makes alot of sense and I e it with

5 0
3 years ago
I need help I would really thank whoever answers this for me
Mars2501 [29]
To do these problems, you plug in the ‘n’ value given into the equation.

a. 6j - 3 : j = 4
6(4) - 3
24 - 3
21

b. 1/2b + 5 : b = 14
1/2(14) + 5
7 + 5
12

c. 8 + 4k : k = 3.5
8 + 4(3.5)
8 + 14
22
6 0
3 years ago
Read 2 more answers
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