Find the surface area of this rectangular prism. Be sure to include the correct unit in your answer.

Answer:

1/4

Step-by-step explanation:

Q=event of pulling a quarter (25 cents)

D=event of pulling a dime (10 cents)

N=event of pulling a nickel (5 cents)

P=event of pulling a penny (1 cent)

Simon needs to pull out the penny last, so that the first three coins add up to $0.40.

We assume the coins are wrapped so it is a random choice.

For the first coin, probability of NOT pulling a penny is 3/4,

similarly, for the second coin, probability of NOT pulling a penny is 2/3,

for the third coin, probability of NOT pulling a penny is 1/2,

For all this to happen, we use the multiplication rule

P(3 coins but no penny) = (3/4*2/3*1/2) = 1/4

Answer:

3(7a - 9)

Step-by-step explanation:

21a–27

3*7*a - 3*9

Factor out 3

3(7a - 9)

Answer:

3(7a-9)

Step-by-step explanation:

The greatest common factor between 21a and 27 is 3. Hope this helps!

Answer:

11 and 11

Step-by-step explanation:

brainliest^:)

Answer:

11  i do not think there is a 2nd one unless 1

Step-by-step explanation:

The only one I could think of because  It is the positive solution of the equation x to the 2nd power = 121. The number 121 is a perfect square. 1.

Answer:

independent and explanatory

Step-by-step explanation:

In a study, an independent variable may be defined as the variable that does not affect the other variables in the study when it is changed. Thus a variable is said to be independent when it is not affected by the any other variable in the study.

Whereas, an explanatory variable can be manipulated or changed by the experimenter. It is the variable that is not independent for certain variables.

Thus in the context, the scatterplot showing the total precipitation and the percent of the people who tested positive for the malaria test. The precipitation from the graph is the independent as well as the explanatory variable.

Step-by-step explanation:

1 mile=5280 feet

0.5 mile=2640 feet.

The fastest that a seahorse can travel is 2,640 feet per hour. The top speed in miles per hour is 0.5 miles per hour.Can be also.

If the answer is correct plz mark me as brainliest.

Answer:

9 and 16

Step-by-step explanation:

let the two numbers are X and Y

X+Y=24

X^2-Y^2=144

solve simultaneously

Answer:

Step-by-step explanation:

Work done by Kayla in 1 hour = 1/15

Work done by Jennifer in 1 hour = 1/16

Work done by both Kayla and Jennifer = [tex]\frac{1}{15}+\frac{1}{16}[/tex]

                 [tex]= \frac{1*16}{15*16}+\frac{1*15}{16*15}\\\\=\frac{16}{240}+\frac{15}{240}\\\\=\frac{31}{240}\\[/tex]

Hours taken  by both = 240/31 = 7  23/31 hours

Answer:a. 0.13% b. 2.28%

Step-by-step explanation:

Let x  denotes the useful life of batteries.

Given: [tex]\mu=56[/tex] months, [tex]\sigma=6[/tex]

Since X is normally distributed.

The probability that batteries with a useful life of less than 38 months

[tex]P(X<38)=P(\frac{X-\mu}{\sigma}<\frac{38-56}{6})\\\\=P(Z<-3) \ \ \ [Z=\frac{X-\mu}{\sigma}]\\\\=1-P(Z<3) \\\\=1- 0.9987\\\\=0.0013[/tex]

The percent of batteries with a useful life of less than 38 months =0.13%

The probability that batteries will last longer than 68 months

[tex]P(X>68)=P(\frac{X-\mu}{\sigma}>\frac{68-56}{6})\\\\=P(Z>2) \ \ \ [Z=\frac{X-\mu}{\sigma}]\\\\=1-P(Z<2)\\\\=1-0.9772=0.0228[/tex]

The percent of batteries that will last longer than 68 months =2.28%

Answer:5/12

Step-by-step explanation:

Answer:

the answer is 16.5 or when runner becomes 17.

Step-by-step explanation:

The product of a number and five

= the number is always replaced by a variable. and I used

[tex]x[/tex]

[tex]5 \times x[/tex]

less than the number is 66

=

[tex]5 \times x - x = 66[/tex]

[tex] = 5x - x = 66[/tex]

[tex]4x = 66[/tex]

you divide both sides by 4 since we want X to stand alone .

[tex] \frac{4x}{4} = \frac{66}{4} [/tex]

[tex]4 \: will \: cancel \: 4 \: and \: 66[/tex]

[tex]giving \: you \: 16.5 \: or \: when \: run \: becomes17[/tex]

Answer:

C

Step-by-step explanation:

18 x 5.85 = 105.3

105.3 is closest to the estimate of $120

Answer:

I believe it is B

Step-by-step explanation:

Remember - x,y. The 1 was found on the x-axis.

Answer:

X - 7 = - 3

X = - 3 + 7

X = 4

the 7 turns positive because it was moved to the other side of the symbol "=" so we reverse the sign

- becomes +

and

+ becomes -

Answer:

a 3² +4² = 25 the factors are 5²

b 8²+6²= 100 the factors are 5²and 2²

c 12²+5²= 169 the factors are 13²

d 8²+15²= 289 the factors are 17²

Answer:

Step-by-step explanation:

The Bible uses this same value for pi. Just an irrelevant fact to add to your list of such facts.

pi is about 3

r = 3

C = 2 pi * r

C = 2 * 3 * 3

C = 18

Answer:

The circumference of circle is 18.

Step-by-step explanation:

Given :-

To Find :-

Formula Used :-

Where,

r, is the radius of circle.

Solution :-

Using Formula

Circumference of circle = 2 π r

substitute the values

Circumference of circle = 2 × 3 × 3

multiply the values

Circumference of circle = 18

Hence, the circumference of circle is 18.

Step-by-step explanation:

= 2x +b

Use the given point (2, 5)

5 = 2(2) +b

b = 5 -4 = 1

The equation of the line is

y = 2x +1

Note general form of the slope-intercept form of a line is y = mx +b, where m is the slope and b is the y-axis intercept

Answer:

4.85 ÷ 5 = 0.97

hope this helps

Answer:

a. False.

b. False.

Step-by-step explanation:

Statement a:

The median salary is $27,200 and the 57th percentile is $30,400.

Thus, 57-50 = 7% of the salaries are between $27,200 and $30,400, that is, not between $26,500 and $30,400, and thus, statement a is false.

b. The percentile rank of $25,400 is 50.

The median salary is $27,200, and thus, the percentile rank of $27,200 is 50, and the percentile rank of $25,400 is less than 50, and this statement is false.

Answer:

P(Red) = 26/52, P(Black) = 26/51

Step-by-step explanation:

There are 26 red cards and 26 black cards in a standard deck of 52 cards.

This means the probability of picking a red card from the deck is 26/52.

Now, since we are taking out the red card after drawing from the deck, we only have 51 cards. Therefore, the probability of picking a black card from the deck is 26/51.

Answer:

1.5

Step-by-step explanation:

The constant of proportionality is the slope

m= (y2-y1)/(x2-x1)

Pick any two points

m = (12-6)/(8-4)

   = 6/4

   = 3/2

   = 1.5

m = (12-6)/(8-4)

→ 6/4

→ 3/2

→ 1.5

The required answer is 1.5.

Answer:the ratio of brooms to mops is 3:2

Step-by-step explanation:

6:4 can be simplified to 3:2

Answer:

6:4

Step-by-step explanation:

also can be simplified 3:2

Answer:

qijejejsllaoajvrjaoaq

Answer:

false and 8 hours and 55 min

Step-by-step explanation:

Answer:

false. 8.9 in the scenario would be 9 hours and 30 minutes

Step-by-step explanation:

using decimals is not an accurate way to measure time.

if it was used, 8.9 would be 8 hours and 90 minutes. However, there are only 60 minutes in an hour, so 8.9 would translate to 9 hours and 30 minutes.

Answer:

Step-by-step explanation:

Sum of all angles of the triangle = 180

∠A + ∠C + ∠E = 180

5x - 3 + 2x +5 + 3x -2 = 180

Combine like terms

5x + 2x + 3x - 3 + 5 - 2 = 180

            10x + 0 = 180

10x = 180

Divide both sides by 10

x = 180/10

x = 18

∠A = 5x - 3 = 5*18 - 3 = 90 - 3 = 87

∠C = 2x +5 = 2*18 + 5 = 36 + 5 = 41

∠E = 3x - 2 = 3*18 - 2  = 54 - 2 = 52

Side opposite to smallest angle is small

∠C is smallest. So, AE is smallest side

Next smallest is ∠E. So, AC is the next side

AE < AC < CE

Answer:

p = 72

q = 18

Step-by-step explanation:

Complementary means they add to  90o

p + q = 90

p = 4*q

Substitute 4q for p

4q + q = 90            Combine

5q = 90                  Divide by 5

5q/5 =90/5

q = 18

p = 4q

p = 4*18

p = 72

Answer:

A is the Far Left

B is the Base

C is the Hypotenuse

Step-by-step explanation:

Interpretation

Answer:

5

Step-by-step explanation:

90 ÷ 18 = 5 days. Hope this helps! :)

Answer:

15

Step-by-step explanation:

15=90/60=1.5 as whole is 15

Step-by-step explanation:

A U B= {2,3,4,5,6,7,8,9,10,11,12,13}

A n B= {5}

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Answer:

  False

Step-by-step explanation:

  (A/B) ÷ (C/D) = (A/B) × (D/C) = AD/(BC) ≠ AC/(B/D)