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3 years ago

7

Louis is saving money for a car, he invests $1,200 in an account that pays an interest rate of 7.5%. How many years will it take

for the account to reach $14,000?

1 answer:

Artist 52 [7]3 years ago

3 0

Answer: n + d = 30

0.05n + 0.10d = 2.20

^^ ur system of equations

Step-by-step explanation:

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5. When y varies directly with x, the value of y = -2 when x = 4. What is the value of y when x = 8?

zmey [24]

Answer:

-4

Step-by-step explanation:

if y = -2 then x = 4

what is y when x = 8

$\frac{ - 2}{x} = \frac{4}{8} \\ - 16 = 4x \\ x = - 4$

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2 years ago

What is the standard deviation of the following data set rounded to the nearest tenth

photoshop1234 [79]

Answer:

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Step-by-step explanation:

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2 years ago

Given f(x) = x − 7 and g(x) = x2 . Find g(f(−1)).

ivann1987 [24]

Answer:

64

Step-by-step explanation:

$g(f(-1))$ can be found by first finding $f(-1)$ then taking that result and putting it into the function $g$ .

$f(-1)$ means we are going to take the expression $x-7$ and evaluate it for $x=-1$ :

$-1-7$

$-8$

So $f(-1)=-8$ .

So we have this so far:

$g(f(-1))=g(-8)=(-8)^2=64$ .

$g(-8)$ was found by replacing $x$ in $x^2$ with $-8$ .

8 0

3 years ago

2. P(-4, 2), (6, 4), R(11, -2), S(2, -3)<br><br> is this is parallelogram or not??

blondinia [14]

Yes that is a parallelogram

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2 years ago

What is the area of the circle?

hodyreva [135]

Diameter = radius x 2

So, the radius is half of the denominator.

10 / 2 = 5

A = pi x r^2

A = pi x 5^2

A = 3 x 25

A = 75 ft^2

Hope this helps!

4 0

2 years ago