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2 years ago

MATH PLEASE HELP! WILL MARK BRAINLIEST ANSWER!

Mathematics

2 answers:

Nikolay [14]2 years ago

7 0

I believe it is 3,4 4,5 3,6

Valentin [98]2 years ago

5 0

Supplementary Angles—angles that have a sum of $180$ °

We know that a straight line is $180$ °. So, look for two angles that create a line. Here's the supplementary angles. Hope this helps!

Answers: ∠4 and ∠3, ∠4 and ∠5, ∠3 and ∠6

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Help me solve it please

snow_tiger [21]

Answer:

$\fbox{\begin{minipage}{5.8 em}x =5.97 cm\end{minipage}}$

Step-by-step explanation:

(1) As definition, the area ( $A$ ) of a circle is calculated by:

$A = \pi$ x $r^{2}$ with $r$ is radius of circle.

(2) The relation between radius ( $r$ ) and diameter ( $d_{1}$ ) of a circle is:

$d_{1}$ = 2 x $r$

(3) Applying the Pythagorean theorem for a square with sides of length $x$ ,

the relation between side $x$ and diagonal $d_{2}$ is:

$x^{2} +x^{2} = d^{2} \\or\\2x^{2} = d^{2}$

=> The diagonal ( $d_{2}$ ) of that square is calculated by:

$d_{2}$ = $x\sqrt{2}$

(4) The square fits exactly inside a circle, with each of its vertices being on the circumference of the circle.

Applying the theorem of inscribed angle in a circle, the measure of arc BD is twice as the measure of inscribed angle BAD.

In other words, the measure of arc AC = 2 x 90 = 180 deg, or half of circle.

It means that the diagonal BD is coincide with a diameter of circle.

=> $d_{1} = d_{2}$

or $2$ x $r$ = $x\sqrt{2}$

or $r$ = $x\frac{\sqrt{2} }{2}$

Substitute $r$ back into original formula used for calculating the area of circle:

=> A = $\pi$ x $(x\frac{\sqrt{2}}{2})^{2}$ = $\pi$ x $\frac{x^{2}}{2}$

=> $x^{2} = A$ x $\frac{2}{\pi }$

=> $x = \sqrt{A}$ x $\sqrt{\frac{2}{\pi } }$ = $\sqrt{56}$ x $\sqrt{\frac{2}{\pi } }$ = 5.97 cm

Hope this helps!

4 0

3 years ago

Four friends went to the movies together. Each ticket cost $8, and then each person also bought a soda for $3.75. Two friends ea

photoshop1234 [79]

Answer:

$37.00

Step-by-step explanation:

Tickets:

4 friends, each ticket costs $8

4*8=32

$32

Sodas:

4 friends, each soda costs $3.75

4*3.75=15

$15

Total:

tickets + sodas

32+15=47

$47

Coupons:

2 friends each had a coupon for $5 off

2*5=10

$10 discount

Grand Total:

total-discount

47-10=37

$37.00

7 0

3 years ago

3 gal = pt please I'm in 5th grade

Sergeeva-Olga [200]

24 pints
since there are 8 pints in a gallon you can do 3 x 8 and get 24 cause you are converting a bigger unit into a smaller unit

7 0

3 years ago

Watcha help me now now nkw

Valentin [98]

Answer:

que mal

no te ayudare

por culpa de brailyn

Step-by-step explanation:

culpables

BRAILYN

CULPABLES

BUUUUUUUUU

FUERAAA MODERADORES

BUUUUUUUUUU

3 0

2 years ago

Derrick will need $39,500 in 10 years for college tuition. How much should his parents invest now at 9.5% annual interest, compo

erastova [34]

Answer:

His parents should invest $15,278.16 to reach this goal ⇒ 4th answer

Step-by-step explanation:

* Lets explain how to solve the problem

- Derrick will need $39,500 in 10 years for college tuition

∴ The future amount is $39,500

∴ The time for investment is 10 years

- P is the money his parents invest now at 9.5% annual interest,

compounded daily

∴ The rate is 9.5% per year compounded daily

- The formula of the compounded interest is:

$A=P(1+\frac{r}{n})^{nt}$ , where

# A is the future value of money

# P is the value of investment

# r is the rate of interest in decimal

# t is the time of investment

# n is the period of the time

∵ A = $39,500

∵ t = 10

∵ r = 9.5/100 = 0.095

∵ n = 365 ⇒ compounded daily

- Lets use the formula above to find P

∴ $39500=P(1+\frac{0.095}{365})^{365*10}$

∴ $39500=p(2.58539)$

- Divide both sides by 2.58539

∴ P = $15278.16

∴ His parents should invest $15,278.16 to reach this goal

7 0

3 years ago