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3 years ago

Someone help me please!

Mathematics

1 answer:

dalvyx [7]3 years ago

3 0

Answer:

y = 4x + 8

Step-by-step explanation:

1) Find slope:

y2-y1/x2-x1

12-8/1-0 = 4/1 = 4

Slope = 4

2) Plug in a point in point-slope form

y-y1=m(x-x1)

y-8=4(x-0) =

y-8=4x-0 -> add 8 to both sides

y=4x+8

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20 POINTS!!! If you put $ 2 comma 700 a year for 3 years into an IRA that earns 3.3% a year, how much will you have saved at t

inysia [295]

Answer:

At the end of 3 years, we could save upto $ 2975.4 with an interest rate of 3.3 %

Step-by-step explanation:

If we are putting $ 2700 into our IRA ( individual Retirement Account) for 3 years and we are earning 3.3% profit every year, we need to find the total amount saved at the end of 3 years.

Since the interest is calculated for more than 1 year, this is an example of compound interest.

The formula used is:

$FV = P ( 1 + r/n) ^n^t$

where FV = future value

P= Principal amount of money deposited

r= annual interest rate ( in decimal form)

n= number of times interest rate is compounded (yearly)

t= time period

So for our given guestion:

P= $2,700

r = 3.3 % = 0.033

n= 1

t= 3

putting our values in the formula

$FV = P ( 1 + r/n) ^n^t$

$FV = 2700 ( 1+ 0.033 / 1 ) ^ 1 ^* ^ 3$

$FV = 2700 (1.033) ^ 3$

$FV = 2975.4$

So, at the end of 3 years, we could save upto $ 2975.4 with an interest rate of 3.3 %

4 0

3 years ago

The perimeter of a rectangle is 30 cm and its length is x cm. Find its area in terms of x. step by step explanation.

mars1129 [50]

Answer:

The area of the rectangle in terms of 'x' = 13x

Step-by-step explanation:

Perimeter = 30 cm

Length = x cm

Using the perimeter formula to find the width w.

$P=2(l+w)$

$P = 2l + 2w$

$2w = P-2l$

Dividing both sides by 2

$w\:=\:\frac{P}{2}-2$

as P = 30 cm

$w\:=\:\frac{30}{2}-2$

$w\:=\:15-2$

$w = 13$ cm

Using the formula of the rectangle area

$A = wl$

substitute w = 13 and l = x in the formula

$A=13\times \:x$

$A = 13x$

Therefore, the area of the rectangle in terms of 'x' = 13x

7 0

3 years ago

Here is the right photo please help i need this before july 1st thank you

Reil [10]

Answer:

i hope this helps

Step-by-step explanation:

2 $x^{2}$ -16=0

+16 +16

2 $x^{2}$ =16

÷2 ÷2

$x^{2}$ = 8

$\sqrt{x^{2} }$ = $\sqrt{8}$

x= $\sqrt{8}$

-5 $x^{2}$ +9=0

-9 -9

-5 $x^{2}$ =-9

÷-5 ÷-5

$x^{2}$ =1.8

$\sqrt{x^{2} }$ = $\sqrt{1.8}$

x= $\sqrt{1.8}$

6 $x^{2}$ -15=27

+15 +15

6 $x^{2}$ =42

÷6 ÷6

$x^{2}$ =7

$\sqrt{x^{2} }$ = $\sqrt{7}$

x= $\sqrt{7}$

4 0

4 years ago

HELP DOES ANYONE KNOW HOW TO DO THIS?

natta225 [31]

Answer:

im pretty positive its exponential

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A company plans to build at least 152 igloos in a single week by employing skilled workers from the cities of Tomsk and Kyzyl. A

Nikolay [14]

Answer:

each Tomskians will build 6 igloos per week

each Kyzylians will build 5 igloos per week

They achieved their goal

Step-by-step explanation:

6T + 5K ≥ 152

T = Tomskians

and each Tomskians will build 6 igloos per week

K = Kyzylians

and each Kyzylians will build 5 igloos per week

This is found by taking the coefficient on the inequality.

Substituting the values of T =10 and K = 19

6T + 5K ≥ 152

6*10 + 5*19 ≥ 152

60 + 95

155 ≥ 152

This is true, so they hired enough people.

5 0

3 years ago