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nata0808 [166]
3 years ago
5

Help me nowwwwwww 7 a b and 8

Mathematics
1 answer:
maw [93]3 years ago
7 0
7 = a hope this helps
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If the simple interest on $6,000 for 3 years is $1,620, then what is the interest rate?
Volgvan

Answer:

Interest rate: 9%

Step-by-step explanation:

Using the simple interest formula: A=P(1+rt)

A=Final amount

P=Principal amount

r=rate

t=time (years)

We just need to put in the information we have from the question and solve for r.

7,620=6000(1+r3)

7,620/6000=1+r3

1.27=1+r3

0.27=r3

r=0.09

r=9%

3 0
2 years ago
What is f(–3) for f(x) = 2x2 – x + 5?<br> A) 11 <br> B) 17 <br> C) 20 <br> D) 26
nirvana33 [79]

Answer: D

<u>Step-by-step explanation:</u>

f(x) = 2x² - x + 5

f(-3) = 2(-3)² - (-3) + 5

      = 2(9) + 3 + 5

      = 18 + 3 + 5

      = 26

6 0
3 years ago
HELP ME PLZ!!!!!!!!!!
nevsk [136]


C. No, this is not a valid inference because she asked only 35 families

4 0
3 years ago
A line crosses through the point (3,10) and another point can be found on the line by going right 2 and down 7. find slope and y
DerKrebs [107]

Answer:

y =  \frac{-7x}{2}+\frac{41}{2}

Step-by-step explanation:

We are given the point (3, 10).

The second point is 2 on the x-axis and -7 on the y-axis. So our second point is: (3 + 2, 10 - 7) which is (5, 3).

Our formula for slope is m = \frac{rise}{run} = \frac{y2-y1}{x2-x1}

So, our equation would be \frac{3-10}{5-3} = \frac{-7}{2}

Using the standard formula of a line, y = mx + b, we can substitute for the slope, m.

y = \frac{-7x}{2} + b

Now, we can substitute a point on the line to determine the y-intercept:

Using the point (3, 10),

10 = \frac{-7(3)}{2} + b

b = 10 + \frac{21}{2}

b = \frac{41}{2}

So our full equation is: y =  \frac{-7x}{2}+\frac{41}{2}

3 0
2 years ago
Can someone help me with this problem?
Dmitriy789 [7]

Answer:

that is so ez but i cant help u cheat in your exam

3 0
2 years ago
Read 2 more answers
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