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Georgia [21]
2 years ago
6

Help a girl out doods uwu

Mathematics
2 answers:
igomit [66]2 years ago
4 0

the answer is 64


I know im late xD

nadezda [96]2 years ago
3 0
Substitute n with 4 to find d(4):
d(4)=d(4-1)+17
d(4)= d(3)+17=47+ 17= 64

Substitute n with 3 to find d(3):
d(3)= d(2)+17=30+17 =47

Substitute n with 2 to find d(2):
d(2)=d(1)+17= 13+17= 30

The 4th term is 64
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3 years ago
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Step-by-step explanation:

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The altitude of a triangle is increasing at a rate of 1.5 1.5 centimeters/minute while the area of the triangle is increasing at
seraphim [82]

Answer:

The base reduces at 3.75cm/min

Step-by-step explanation:

Given

Let

h \to altitude

b \to base

A \to Area

So:

\frac{dh}{dt} = 1.5cm/min

\frac{dA}{dt} = 1.5^2cm/min

The area of a triangle is:

A = \frac{1}{2}bh

Calculate b when A =88cm^2; h =8cm

A = \frac{1}{2}bh

88=\frac{1}{2} * b * 8

88 =b * 4

Solve for b

b = 88/4

b = 22

We have:

A = \frac{1}{2}bh

Differentiate with respect to time

\frac{dA}{dt} =\frac{1}{2}(h\frac{db}{dt} + b\frac{dh}{dt})

Substitute the following values in the above equation

\frac{dh}{dt} = 1.5cm/min        \frac{dA}{dt} = 1.5^2cm/min      b = 22     h = 8

1.5 = \frac{1}{2}(8 * \frac{db}{dt} + 22 * 1.5)

Multiply both sides by 2

3 = 8 * \frac{db}{dt} + 22 * 1.5

3 = 8 * \frac{db}{dt} + 33

Collect like terms

8 * \frac{db}{dt} = 3 -33

8 * \frac{db}{dt} = -30

Divide both sides by 8

\frac{db}{dt} = -\frac{30}{8}

\frac{db}{dt} = -3.75

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John pays $0.25 per minute plus $7 per month for a long distance phone plan. Which expression represents this scenario. Then fin
anyanavicka [17]

Answer:

b

Step-by-step explanation:

because you have to add them

5 0
3 years ago
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