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inna [77]
3 years ago
11

I need help with this what’s the answer

Mathematics
2 answers:
Vikentia [17]3 years ago
8 0
Twice the weight: 2x
2.5 pounds more: +2.5
2x + 2.5
The solution would be B
Dovator [93]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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The slope of a line that passes through points (5, 14) and (-4, y) is 4/9. What is the value of y?​
Monica [59]

Answer:

slope=m=4/9

(x',y')=(5,14)

(x",y")=(-4,y)

we have

m=(y"-y')/(x"-x')

4/9=(-4-5)/(y-14)

4y-56=-81

4y=-81+56

y=-25/4

3 0
3 years ago
Read 2 more answers
A girl is on the beach and the angle of elevation from her feet to the top of a lighthouse is 62' If the lighthouse is 30ft tall
soldi70 [24.7K]

Answer:

15.95 feets

Step-by-step explanation:

Given that:

Angle of elevation = 62°

Using trigonometric relation :

Tanθ = opposite / Adjacent

From the drawing attached :

Opposite = 30 feets

Distance between girl and lighthouse = d

Tan 62 = 30 / d

1.8807264 * d = 30

d = 30 / 1.8807264

d = 15.951283

d = 15.95 feets

3 0
3 years ago
-3m+10=25 need this fast please!
Ymorist [56]

Answer:

m=-5

Step-by-step explanation:

7 0
2 years ago
Ms. Mincey wants to spend less than $80 on presents for her 2 brothers. What is the most amount of money she can spend on each o
TiliK225 [7]

Answer:

49 each!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

4 0
3 years ago
Read 2 more answers
Why did I get this question wrong?
lord [1]

Step-by-step explanation:

∫₀³⁰ (r/V C₀ e^(-rt/V)) dt

If u = -rt/V, then du = -r/V dt.

∫ -C₀ e^u du

-C₀ ∫ e^u du

-C₀ e^u + C

-C₀ e^(-rt/V) + C

Evaluate between t=0 and t=30.

-C₀ e^(-30r/V) − -C₀ e^(-0r/V)

-C₀ e^(-30r/V) + C₀

C₀ (-e^(-30r/V) + 1)

I got the same answer.  Try changing the lowercase v to an uppercase V.

4 0
3 years ago
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