What is the probability of flipping a coin 8 times getting heads 4 times

Answers

Answer 1

Answer: 1/2 because 8/4=2 so 2 means that there is two sides, so your answer is 1/2

Answer 2

Answer: 1 out of 2 or 50% is the probability

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Find the difference. (2x^2 - 3x + 7) - (x^2 + 6x - 12)A) A) x^2 + 3x - 5B) x^2 - 3x + 19C) x^2 - 6x + 12D) x^2 - 9x + 19

The formula represents the surface area S of a cube with side lengths x.S = 6x2
Solve for x.

Answers

Answer:

$s = 6 {x}^(2) \n {x }^(2) = (s)/(6) \n x = + - \sqrt{ (s)/(6) } \n x = ( √(s) * √(6) )/( √(6) * √(6) ) \n x = ( + - √(6s) )/(6)$

theanswer is4thoption

the answer is the last one
hope that helps

A cube has a volume of 64 cubic cm. What is the length of one side?

Answers

the length of one side is 4 V= a^3 so 4^3 is 64

Karla is riding vertically in a hot air balloon, directly over a point P on the ground. Karla spots a parked car on the ground at an angle of depression of 30o. The balloon rises 50 meters. Now the angle of depression to the car is 35 degrees. How far is the car from point P?

Answers

Answer:

407 m

Step-by-step explanation:

Refer the attached figure

Karla spots a parked car on the ground at an angle of depression of 30° i.e. ∠BDP = 30°

Now the balloon rises 50 meters.i.e. AB = 50 m

So, the angle of depression to the car is 35 degrees. i.e.∠ADP = 35°

Let DP be the distance of the car prom point P

Let BP be x

In ΔBDP

$Tan\theta = (Perpendicular)/(Base)$

$Tan 30^(\circ) = (BP)/(DP)$

$(1)/(√(3))= (x)/(DP)$

$DP= (x)/((1)/(√(3)))$ --1

In ΔADP

$Tan\theta = (Perpendicular)/(Base)$

$Tan 35^(\circ) = (AP)/(DP)$

$0.70020= (50+x)/(DP)$

$DP= (50+x)/(0.70020)$ --2

So, equating 1 and 2

$(50+x)/(0.70020) = (x)/((1)/(√(3)))$

$(50+x)/(x) = (0.70020)/((1)/(√(3)))$

$(50+x)/(x) =1.21278$

$50+x =1.21278x$

$50 =1.21278x-x$

$50 =0.21278x$

$(50)/(0.21278)=x$

$x=234.982$

Substitute the value of x in 1

$DP= (234.982)/((1)/(√(3)))$

$DP= 407.0007$

Hence the car is at a distance of approximately 407 m from point P

We form 2 similar rt. triangles:

Triangle #1.
X = Hor. side = dist. from P to the car.
Yi = Ver. side.
A = 30o.

Triangle #2.
X = Hor. side = Dist. from P to the car.
Y2 = Y1+50 = Ver. side.
A = 35o.

Use aw of Sines.
sin30/Y1 = sin35/(Y1+50).
Cross multiply:
(Y1+50)sin30 = Y1*sin35
Y1/2+25 = 0.574Y1
Multiply both sides by 2:
Y1+50 = 1.148Y1
1.148Y1-Y1 = 50
0.148Y1 = 50
Y1 = 337.8 m.

tan30 = Y1/X = 337.8/X
X = 337.8/tan30 = 585 m. 714 feet away hope that helps if not tell me.

How to know where the ( ) go in a math problem

Answers

i hope this helps

the brackets can represent multiplication or group large
for example

5 × 4 + 7 × 9
(5 × 4) + (7 × 9)
20 + 63
= 83

or

73 + 92 + 54 + 96 × 6

(73 + 92) + (54 + 96) × 6

165 + 150 × 6

315 × 6

= 1890

Also
2(3)=6 show as multiplication

Why is math important in every day life?

Answers

Answer:

Step-by-step explanation:

Math is important in everyday life because math helps us with better problem-solving skills. It helps you think analytically and have better reasoning abilities

Answer:

Math helps us have better problem-solving skills. Math helps us think analytically and have better reasoning abilities. Analytical thinking refers to the ability to think critically about the world around us. ... Analytical and reasoning skills are important because they help us solve problems and look for solutions.

Step-by-step explanation:

Solve. -1/8c=2
a. 4
b. –16
c. –4
d. 16

Answers

$(-1)/(8c) =2$
This requires that c ≠ 0 , meaning c≠0
$(-1)/(8c) =2$
Multiply by x to eliminate var in denominator
$( \not c*(-1))/( 8 \not c) =c*2$
$(-1)/(8) =c*2$
Common denominator is 8
$(\not 8(-1))/(\not 8) =8c*2$
$-1=8c*2$
$-1=16c$
$x=-16$
The answer is: b. -16

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There are 12 students in a classroom, including the triplets joey, chloe, and zoe. If 3 of the 12 are randomly selcted to give speeches, what is the probability that joey with be first, chloe will be second, and zoe will be third?A: 1/1320 B: 1/4 C: 1/48 D: 1/220

PLEASE HELP ME !!!The height of the pyramid in the diagram is three times the radius of the cone. The base area of the pyramid is the same as the base area of the cone. What is the expression for the volume of the pyramid in terms of the radius r of the cone? base area for cone= B base area for pyramid= B, 3r heigh A. V = pi r³ B. V = 1/3 pi r² C. V = 2 pi r² D. V = 1/9 pi r³ E. V = 3 pi r³