Round off 64.723 to the nearest hundredth

Answer:

1/2×4×2×6+8×5×3=144cm²

Answer: The probability of getting two red marbles is P = 0.141

Step-by-step explanation:

We know that in the bag there are 3 blue marbles and 5 red marbles, then there is a total of 8 marbles in the bag.

The probability of taking at random a red marble is equal to the quotient between the number of red marbles and the total number of marbles, this is:

p = 3/8

Suppose we got a red marble:

Now we replace the red marble we took, so in the bag there are again 3 red marbles and 8 total marbles, then the probability of getting another red marble is again:

q = 3/8

The joint probability (this is, the probability of both events happening) is equal to the product of the individual probabilities, with gives us:

P = p*q = (3/8)*(3/8) = 9/64 = 0.141

Answer:

3,34

Step-by-step explanation:

mark me please thanks

Answer:

correct

Step-by-step explanation:

9514 1404 393

Answer:

  367 miles per hour

Step-by-step explanation:

The speed of the faster train is half the total plus half the difference:

  s1 = (723.1 +10.9)/2 = 367 . . . . miles per hour

_____

Check

The slower train is 367-10.9 = 356.1, and the total is 723.1 mph, as required.

_____

If you want an equation, you can let x represent the faster speed. Then the total is ...

  x + (x -10.9) = 723.1

  2x = 723.1 +10.9

  x = (723.1 +10.9)/2 = 367

What do you mean? Like what do you mean doing math outside?

Answer:

B) 30

Step-by-step explanation:

An acute angle is an angle that is more than 0° but less than 90°. Common examples of acute angles include: 15°, 30°, 45°, 60°, etc.

Brainlist Pls!

Answer:

B

Step-by-step explanation:

tesfa = x

dad = 4x

mom= 4x-1

x+4x+4x-1=101

9x+1=101

9x=100

100/9= 11.1

1. The factoring step is

sin²θ - cos²θ sin²θ = sin²θ (1 - cos²θ)

Then the Pythagorean identity is invoked:

cos²θ + sin²θ = 1   →   1 - cos²θ = sin²θ

so that

sin²θ - cos²θ sin²θ = sin²θ sin²θ = sin⁴θ

(third option)

2. Recall that a ² - b ² = (a - b) (a + b). The numerator here is such a difference of squares:

csc²x - 1 = (cscx - 1) (cscx + 1)

Then

(csc²x - 1) / (1 + sinx) = ((cscx - 1) (cscx + 1)) / (1 + sinx)

Recall that cscx = 1/sinx, so rewrite this as

… = ((1/sinx - 1) (1/sinx + 1)) / (1 + sinx)

In the numerator, pull out a factor of 1/sinx from both terms:

… = (1/sinx (1 - sinx) × 1/sinx (1 + sinx)) / (1 + sinx)

… = ((1 - sinx) (1 + sinx)) / (sin²x (1 + sinx))

Cancel the common factor of 1 + sinx :

… = (1 - sinx) / sin²x

Expand the fraction and rewrite sin in terms of csc :

… = 1/sin²x - sinx/sin²x

… = 1/sin²x - 1/sinx

… = csc²x - cscx

Factor out cscx to get the second option,

… = cscx (cscx - 1)

Answer:

Step-by-step explanation:

9009g = 9kg 9g

Answer:

60.16 m

Step-by-step explanation:

Let w = width of river

Using trigonometry :

The width, w of the river is can be calculated thus :

Tan θ = opposite / Adjacent

Tan 76 = w / 15

4.0107809 = w / 15

w = 15 * 4.0107809

w = 60.1617 m

Hence, width of the river is 60.16 m

Answer:

42

Step-by-step explanation:

You can use proportions to solve this problem.

[tex]\frac{5cm}{30km}[/tex]=[tex]\frac{7cm}{xkm}[/tex]

Now just cross multiply.

5cm*Xkm=7cm*30km

you can simplify the cm and km since its multipying.

5x=210

x=42

Answer:

Stage crewmember's calculation is incorrect

Correct = 1/16x 1/16y

Step-by-step explanation:

Given that:

Dimension of backdrop : 20 feets long ; 16 feets high

Actual dimension of building : 320 feets long ; 256 feets high

The correct scale factor can be obtained thus :

Ratio of backdrop dimension to the actual dimension of building

Length : 20 / 320 = 1 /16

Height : 16 / 256 = 1/16

Hence, stage crewmember's calculation of (1/20x ; 1/20y) is incorrect.

Answer:

yes

Step-by-step explanation:

Answer:

31.5

Step-by-step explanation:

First we want to find what side NP is equal to. To do that we divide 4 by 12

12/4=3 so side mp=3

next we want to find the scale factor of the rectangles. to do that we divide 4 from 9

9/4=2.25

next we want to find what side st is equal too

to do that we multiply 3 by 2.25

3x2.25=6.75

finally we want to find the perimeter and to do that we do 2(6.75)+2(9)

2(6.75)+2(9)=31.5 so the perimeter of rectangle RSTU is 31.5

hope this helps :)

Answer:

-2592, -15552, -93312

Step-by-step explanation:

Just multiply the number by 6

Answer

-2,592

Step-by-step explanation:

Each number of the sequence is multiplied up by 6

-2x6= -12, -12x6= -72, -72x6= -423. To get your solution you do -432x6 = -2,592

HI hru

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

76.5

Step-by-step explanation:

Answer: v=210

Step-by-step explanation:

Answer:

178,303,038

Step-by-step explanation:

Multiply it

Or put it into a calculator

Answer:

Step-by-step explanation:

1,2,5

Answer:

a)  n  ≥ -2

b)  v > -6

Step-by-step explanation:

You did not state what you would like us to do with these. I will assume simplify.

a)

− 5 ( 6 n + 6 ) ≤ 30 first, distribute -5

-30 n + -30  ≤ 30 now, add 30 to both sides so we may isolate n our variable

-30 n  ≤ 60 now, divide -30 on both sides so we may isolate n completely. When we do this, the sign changes direction

n  ≥ -2

b)

8 v − 4 ( v − 8 ) > 8 first, distribute -4 (note: two negatives equal a positive)

8 v - 4v + 32  > 8 now, simplify

4v + 32  > 8 now, subtract 32 from both sides

4v > -24 now, divide both sides by 4 to isolate v

4v > -24

v > -6

Hope this helps! Please make brainliest <3

Answer:

x<7

Step-by-step explanation:

The app Photomath can solve these questions for you, all you have to do is scan it and then it solves it for you! :D

Answer:

110.25

Step-by-step explanation:

Cost of 1 pen = 15.75

Cost of 7 pens = 15.75 × 7 = 110.25

Answer:

$110.25

Step-by-step explanation:

1 pen = $15.75

7 pens x $15.75 = $110.25

(this pen is expensive t.f)

Answer:  8

Step-by-step explanation:

take 72 inches and divide it by 9 inches and you will have the answer

Answer:

What are we trying to find?

Step-by-step explanation:

Answer:

=5y+24

Step-by-step explanation:

Distribute:

=(8)(y)+(8)(3)+−3y

=8y+24+−3y

Combine Like Terms:

=8y+24+−3y

=(8y+−3y)+(24)

=5y+24

Answer:

15x² - 3x - 7

Step-by-step explanation:

(12x² + 2x) - (-3x²+ 5x + 7)

First open the parentheses by applying the distributive property.

To do this, multiply each term you have inside (-3x⅔ + 5x + 7) by -1.

Thus, you would have the following:

12x² + 2x + 3x² - 5x - 7

Add like terms

12x² + 3x² + 2x - 5x - 7

15x² - 3x - 7

Step-by-step explanation:

126 / 2 = 63 because the circular angle is 1/2 of the center angle

Answer:

EF = 10

Step-by-step explanation:

QUICK

9/15 = 6/x

x=10