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3 years ago

Jus giving away free point so ye

Mathematics

2 answers:

ioda3 years ago

6 0

Wow! Thank you lol :)

Paha777 [63]3 years ago

3 0

Answer:

True

Step-by-step explanation:

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The function f is defined by f(x)=a−2x, where a is a constant. Find a, if the graph of f passes through the point (8,−21).

LekaFEV [45]

-21 = a - 2(8) because the graph passes through (8,
-21)

a = -21 + 16 = -5 answer

7 0

4 years ago

Read 2 more answers

Paddy and Anna each invest $2000 for 5 years.

Serga [27]

Answer: r= 1.22

Step-by-step explanation:

Formula for amount with simple interest = $P(1+rt)$

, where

P= principal value , r= rate of interest , t = time.

Given: P= $2000, t= 5 years, r= 1.25% = 0.0125

$A=2000(1+0.0125\times5)\\\\=2000(1.0625)=2125$

Formula to compute compound amount : $P(1+r)^t$

$=2000(1+r)^5$

When both have same worth then

$2000(1+r)^5=2125\\\\\\ (1+r)^5=\dfrac{2125}{2000}\\\\\\ (1+r)^5=1.0625$

taking log on both sides , we get

$5\ln (1+r)=\ln 1.0625\\\\\\ 5\ln (1+r)=0.0606246\\\\\\ \ln (1+r)=0.012125\\\\\\ 1+r=e^{0.005266}\\\\\\ 1+r=1.0122\\\\ r=0.0122\\\\ \\ r=1.22\%$

Hence, Value of r= 1.22

6 0

3 years ago

Need help plz its on the screenshot

user100 [1]

The answers are a and c

4 0

3 years ago

Read 2 more answers

Find the value of x.

LUCKY_DIMON [66]

The answer would be 28

3 0

3 years ago

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Find f(2) for f(x)=x^2+x+4/-2

swat32

F(2)=(2)^2+(2)+4/-2

Simplify both sides of the equation.

f(2)=2^2+2+4−2

Simplify

2f=4

Divide both sides by 2.

2f/2 = 4/2

f=2

Answer:

f=2

5 0

3 years ago