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alexdok [17]
3 years ago
7

Can someone help asap

Mathematics
1 answer:
Komok [63]3 years ago
4 0

Part A:

Expression: 21 = 8h + 179

Part B:

21 = 8h + 179

h = - 19

Move 179 to the other side by subtracting 179 from both sides.

21 - 179 = -158

-158 = 8h

Then, divide both sides by 8 to get the feet descended per hour.

-158/8 = -19

h = -19

Therefore, Luther and Nicole descend approximately 19 feet per hour.

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How can i turn .888 into a fraction?
S_A_V [24]
You cant how many digits there are behind the decimal, 3, then ask your self which number has 3 zeroes, 1000, so after that you write 888 over 1000, simple. Hope it helped!!
7 0
3 years ago
The points A(-3,6), B(8,6), C(8,-4)and D(-3,-4)are vertices of rectangle ABCD. A point is selected at random from the interior o
aleksklad [387]

Answer:

the probability that the x-coordinate of the point is negative and the y-coordinate of the point is positive  is 16.36%

Step-by-step explanation:

Assuming that each point has the same probability to be chosen  ( uniform probability distribution in the rectangle area ) then the probability of choosing a negative x-coordinate and positive y-coordinate is the ratio of the area with those requirements over the total area of the rectangle.

therefore

Ar= area of negative x-values and positive y-values = (-3)*6 = 18

AT= total area of the rectangle = [8-(-3) ]*[6-(-4)] = 110

then

probability = Ar/AT = 18/110 = 0.1636 = 16.36%

4 0
3 years ago
What is the slope of the line?
stellarik [79]
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8 0
3 years ago
Read 2 more answers
(4^2)^4 simplify the expression in the form 4^n please
natulia [17]

Answer:

It would be 4^{8}

Step-by-step explanation:

(4^{2})^{4} is equivalent to 4^{2*4} or 4^{8}.

5 0
2 years ago
the sum of the first three terms of a sequence Is 42 The fourth term is 24. find u1 and the common difference
e-lub [12.9K]

10=2d

Given:

The sum of the first three terms of a sequence Is 42.

The fourth term is 24.

To find:

The  u₁ and the common difference

Step-by-step explanation:

nth term of a sequence is

u_n=u_1+(n-1)d

where, u₁ is first term and d is common difference.

4th term is 24.

u_4=u_1+(4-1)d

24=u_1+3d           ...(i)

Sum of nth term of an AP is

S_n=\dfrac{n}{2}[2u_1+(n-1)d]

Sum of first three terms is 42.

S_3=\dfrac{3}{2}[2u_1+(3-1)d]

42=\dfrac{3}{2}[2u_1+2d]

Divide both sides by 3.

14=u_1+d          ...(ii)

On subtract (ii) from (i), we get

10=2d

5=d

Put d=5 in equation (ii).

14=u_1+5

14-5=u_1

9=u_1

Therefore, the first term is u_1=9 and common difference is d=5 .

6 0
3 years ago
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