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4 years ago

What is the fifth term of the arithmetic sequence 7,3,-1....

Mathematics

1 answer:

Dmitrij [34]4 years ago

7 0

The formula is a1+d(n-1). 7+ -4(5-1). a5 = -9.

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2) what is the perimeter of the kite shown above? (Hint: there are 4 right angle triangles here

VMariaS [17]

The answer would be D 95.8.

You have to use the Pythagorean theorem to find the missing side length
So it would be 10 squared plus 12 squared equals 15.62
Then you double it because of the two top side lengths
Then you use the Pythagorean theorem for the bottom

12 squared plus 30 squared which equals 32.31
And you double that as well

31.24 plus 64.62 equals 95.86 and you just round to 95.8

3 0

3 years ago

HELP ASAP !!

masya89 [10]

Answer:

$y$

Step-by-step explanation:

The graph in the attached figure

Find the equation of the dashed line

we have

points (0,2) and (5,3)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given values

$m=\frac{3-2}{5-0}$

$m=\frac{1}{5}$

Find the equation of the dashed line in slope intercept form

$y=mx+b$

we have

$m=\frac{1}{5}$

$b=2$

substitute

$y=\frac{1}{5}x+2$

Remember that

The solution of the inequality is the shaded area below the dashed line

therefore

The equation of the inequality is

$y$

3 0

3 years ago

Liam is saving up for a new cell phone. He uses the equation P= I + HB, where P is the cost

Stels [109]

Answer:

$H=\dfrac{P-I}{B}$

Step-by-step explanation:

Given the expression: P= I + HB

Where:

P = cost of the phone Liam is saving for.
I = amount of money he started with.
H = number of hours he babysits
B = hourly rate for babysitting.

We want to find an expression for H, the number of hours Liam will need to babysit to save enough money for a cell phone.

Our goal is to isolate the variable H in the expression P= I + HB.

P= I + HB

Subtract I from both sides

P-I=I-I+HB

HB=P-I

Divide both sides by B

$\dfrac{HB}{B} =\dfrac{P-I}{B}\\\\$Therefore\\\\H=\dfrac{P-I}{B}$

4 0

3 years ago

The sales tax T on an article is equal to the tax rate R times the selling price P of the article

disa [49]

I can't provide the answer. But...I can provide examples.

Hope these help!

https://www.mathstips.com/sales-tax-trade-tax/

5 0

3 years ago

Read 2 more answers

How do you answer 89 divided by 4731 show work

Luden [163]

Since 89 is much smaller than 4731, your answer will be a small decimal fraction.

4731 is your divisor. Convert your dividend, 89, into a mixed decimal decimal number: 89.000000 ....

Now divide 89.000000 ... by 4731. 4731 goes into 8900 twice. So the first digit of your answer must be 2. Can you finish this? Show your work, please.

7 0

4 years ago

Read 2 more answers