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3 years ago

15

X+3y = 9 2x+y = -2 Ushahahahbshshs

1 answer:

DaniilM [7]3 years ago

5 0

Answer:3

Step-by-step explanation:

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How do you solve for the value of PI using the formula for circumference?

stira [4]

$\text{The circumference of a circle}\\\\C=d\pi\\\\C-circumference\\d-diameter\\\\C=d\pi\to\pi=\dfrac{C}{d}\\------------------------------\\\\\text{The area of a circle}\\\\A=\pi r^2\\\\A-area\\r-radius\\\\A=\pi r^2\to\pi=\dfrac{A}{r^2}$

$EXAMPLE:\\\\d=7\ in\to2d=7\ in\to d=3.5\ in\\C=21.98\ in\\A=38.465\ in^2\\\\\pi=\dfrac{C}{d}\to\pi=\dfrac{21.98}{7}=3.14\\\\\pi=\dfrac{A}{r^2}\to\pi=\dfrac{38.465}{3.5^2}=\dfrac{38.465}{12.25}=3.14$

6 0

4 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

padilas [110]

Answer:

c. g

hope it helps simple question bro

8 0

2 years ago

Read 2 more answers

Myra took out a 20 year loan for $80,000 at an APR of 11.5% compounded monthly, approximately what would be the total cost of he

Mkey [24]

Answer:

$178251.203502$

Step-by-step explanation:

We have given:

Principal amount which is 80,000

Time which is 20 year

Rate which is 11.5%

And since, we have to find 13 years early so, time would be: 20-13=7 years.

And since, we have to find for 12 months

Hence, n=12

We have formula to calculate compound interest:

$P{1+\frac{r}{n}}^{nt}$

On substituting the values we get:

$80,000(1+\frac{0.115}{12})^{12\cdot 7}$

$\Rightarrow 80,000(1+(\frac{.115}{12}})^{84}$

On simplification we get:

$178251.203502$

5 0

3 years ago

Read 2 more answers

A 27% solution ( 27mg per 100 mL of solution) is given intravenously. Suppose a total of 1,36 L of the solution is given over

a_sh-v [17]

Answer:

Step-by-step explanation:

a.

(1.36 L)/(10 hr) = (0.136 L)/(hr)

Flow rate = (0.136 L)/(hr) × (1000 mL)/L = (136 mL)/(hr)

136 mL × (27 mg)/(100 mL) = 36.72 mg

Delivery rate = (36.72 mg)/(hr)

b.

(136 mL)/(hr) × (13 gtt)/(mL) = (1868 gtt)/(hr)

c.

10 hr × (36.72 mg)/)hr) = 367.2 mg

6 0

3 years ago

The area of a parallelogram is found using the formula bh, where b represents the length of the base and h represents the length

Alborosie

Answer:

120 square centimeters

Step-by-step explanation:

The question says the formula already.

Area = bh

b = base length b = 10

h = height length h = 12

Area = 10 · 12

Area = 120 square centimeters

8 0

3 years ago

Read 2 more answers