help me with this !!

Help Me With This !!

Answers

Answer 1
Answer:  17

Multiply the probability of getting a correct answer (0.25) with the number of questions (68) to get 0.25*68 = 17

The student should expect to get about 17 questions correct.


Related Questions

hurry please
What is the value of 12 Superscript 0?

Answers

Answer:

the answer is 1

Step-by-step explanation:

anything to the 0th power is 1

Answer:

The answer you are looking for is 1

Step-by-step explanation:

Any number raised to the power of one equals the number itself. Any number raised to the power of zero, except zero, equals one. This multiplication rule tells us that we can simply add the exponents when multiplying two powers with the same base.

Please tell me if it is correct using the ratings or thanks

Wegnerkolmp2741o Plz answer

The best shooters in the NBA make about 90% of their free throws (shots from the line). If a player took 20 shots, what number of those shots would you expect to go in?

Answers

Answer:

18 shots

Step-by-step explanation:

By criss cross method

100% -> 20 shots

90% - >?

[tex]answer = \frac{90 \times 20}{100} = 18[/tex]

Hope this helps...

Answer:

18

Step-by-step explanation:

Take the number of shots times the probability that they will go int

20 * 90%

Change to decimal form

20 *.90

18

18 of the shots would be expected to go in

In a group of Year 9 students, the ratio of boys to girls is 9 : 7. There are 4 more boys than girls in this group. How many students are in this group altogether?

Answers

Answer: 32

Step-by-step explanation:

There are 18 boys and 14 girls (4 more boys than girls.  32 students total.

If the ratio of boys to girls is 9 : 7, there are 32 students in this Year 9 group altogether.

Let's denote the number of boys as "9x" and the number of girls as "7x" since the ratio of boys to girls is 9:7. We are also given that there are 4 more boys than girls, so we can set up an equation:

Number of boys = Number of girls + 4

9x = 7x + 4

Now, we can solve for "x":

9x - 7x = 4

2x = 4

x = 2

Now that we have the value of "x," we can find the number of boys and girls:

Number of boys = 9x = 9 * 2 = 18

Number of girls = 7x = 7 * 2 = 14

Finally, to find the total number of students in the group, we add the number of boys and girls:

Total number of students = 18 (boys) + 14 (girls) = 32.

The ratio of boys to girls is 9:7, and there are 4 more boys than girls.

To learn more about ratio click on,

https://brainly.com/question/30925663

#SPJ2

What is the expression and value of "six less than the quotient of a number and two, increased by ten" when n = 8?

Answers

Answer:

n/2 - 6 + 10

8/2 - 6 + 10

4 - 6 + 10

= 8

Step-by-step explanation:

Answer:

It's B

Step-by-step explanation:

I just took the test, sorry if I didn't come on time.

what is the sum of the geometric series?

a. 21/2
b. 21/8
c. 21
d. 10

Answers

Answer:

A

Step-by-step explanation:

Lauren’s book is 180 pages long. She has read 80% of it. How many pages has she read.

Answers

Answer: 144 pages

Step-by-step explanation: if you take 180 and multiple it by the decimal of 80% which would be .8 you get 144

Answer:

144 pages

Step-by-step explanation:

You have to do 180 times 80/100.

that will get you to 144 pages.

A gumball machine contains 7 red, 5 yellow, and 6 orange gumballs. What is the probability that the next gumball that comes out will be either red or yellow?

show work pls tnx!

Answers

Answer:

2/3

Step-by-step explanation:

7 red, 5 yellow, and 6 orange  =18

P( red or yellow) = number of red or yellow / total

                           = (5+7)/18

                             =12/18

                             =2/3

what is the circumference of a circle witha radius of 4 in​

Answers

25.12 in or 8π

Step-by-step explanation:

Since you didn't specify whether or not to leave pi or to make it be 3.14, I did both.

The formula for the circumference of a circle is...

[tex]C=2\pi r[/tex]

So...

[tex]C=2*3.14*4[/tex]

C = 25.12 in

If you want to leave pi...

[tex]C=2*\pi *4[/tex]

C =

In ΔLMN, the measure of ∠N=90°, ML = 97, NM = 65, and LN = 72. What ratio represents the tangent of ∠L?

Answers

Answer:

tan ∠L = 65/72

Step-by-step explanation:

The tangent ratio is:

tan of angle x = opposite/adjacent

Looking from the perspective of angle L, find the opposite side.

This side is MN, measuring 65 units.

opposite = 65

Now let's find the adjacent side.

This side is LN, measuring 72 units.

adjacent = 72

Therefore, the tangent ratio of angle L is 65/72.

Answer:

65/72

Step-by-step explanation:

a(b-x)=cx
make x the subject of formular

Answers

Answer:

×=

[tex] \frac{ab}{?c + a} [/tex]

Answer:

x = [tex]\frac{ab}{c+a}[/tex]

Step-by-step explanation:

a(b-x) = cx

ab - ax = cx

ab = cx + ax

ab = x (c + a)

divide both sides by (c + a) for x to stand alone

x  = ab/ c + a

Joaquin used 1-3/6 cups of apple juice and 1-4/6 cups of orange juice in a recipe for punch. How much juice did Joaquin use?Solve this problem any way you choose.

Answers

Answer:

The answer is 3 and 1/6 cups.

Step-by-step explanation:

If Joaquin used 1 and 3/6 cups of apple juice and 1 and 4/6 cups of orange juice for the punch, there is a total of 2 cups and the fractions can be added as their denominators are the same.

3/6 + 4/6 = 7/6 cups

So the total juice in the punch is 3 and 1/6 cups.

I hope this answer helps.

Anyone know the answer?

Answers

Answer:

A≈18.38

Step-by-step explanation:

Solve for area

Shape: Parallelogram

Formula: Base*Height

5.25*3.5=18.375

Round answer

Hope this helps.

A right triangle has sides of length 3, 4, and x. Find x, if x were the hypotenuse.

Answers

Answer:

[tex]x = 5[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

So the right answer is 5.

look at the attached picture

Hope it will help you

Good luck on your assignment

What is the area of the circle below, the circle has a radius 20.5 ft.
84 feet
92 feet
O 1319.59 ftsq
659.79 ftsa
O 128.74
O none

Answers

Answer:

It is approximately 1320.25

how would you change x + 3y = 18 -3x - 12y = -75 to eliminate x

Answers

Answer:

Multiply the equation  by 3 making positive 3X which will cancel out with negative 3X

Which algebraic expression represent this phase

Answers

The answer would be A because product means multiplication.

Which graph shows a solution to the following system?
{ x -y ≥ -1
{ x+y ≤ 0​

Answers

Answer:

That's the answer attached, whatever answer matches up with it is correct.

Step-by-step explanation:

Solve the system of equations

-10x+3y=5
x=y-4

x=
y=

Answers

Answer:

So the answer is y=5 and x=1

Diana works at a clothing store. She sold 1/3 of the total shirts on Tuesday and 5/12of the total number of blue shirts on Wednesday. What fraction of blue shirts did she sell on Tuesday and Wednesday?

Answers

Answer:

The fraction of blue shirts that she sold is [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

She sold:

1/3 on Tuesday.

5/12 on Wednesday.

What fraction of blue shirts did she sell on Tuesday and Wednesday?

Sum of fractions.

The lesser common multiplier between 3 and 12, which is 12.

So

[tex]\frac{1}{3} + \frac{5}{12} = \frac{\frac{12*1}{3} + \frac{12*5}{12}}{12} = \frac{4 + 5}{12} = \frac{9}{12} = \frac{3}{4}[/tex]

The fraction of blue shirts that she sold is [tex]\frac{3}{4}[/tex]

Find the range for the following data: 40 , 52 , 48 , 20 , 68 , 100 , 99

Answers

Answer:

80

Step-by-step explanation:

The range is the largest number minus the smallest number

100 -20

80

Evaluate each series

Answers

Answer:

solution is 147

work is shown

$900,000 is what percent of $900,000?

Answers

What type of question is this

Answer:

It is 100 percent.

Step-by-step explanation:

Since the two numbers are identical, it is 100 percent.

The question is on a screenshot

Answers

Answer:

[tex]x=\frac{4}{15}[/tex]

Step-by-step explanation:

[tex]\frac{3}{4}x=\frac{1}{5}\\\mathrm{Multiply\:both\:sides\:by\:}4\\Simplify\\4\cdot \frac{3}{4}x=\frac{1\cdot \:4}{5}\\\mathrm{Simplify\:}4\cdot \frac{3}{4}x:\quad 3x\\\mathrm{Simplify\:}\frac{1\cdot \:4}{5}:\quad \frac{4}{5}\\3x=\frac{4}{5}\\\mathrm{Divide\:both\:sides\:by\:}3\\\frac{3x}{3}=\frac{\frac{4}{5}}{3}\\Simplify\\\frac{3x}{3}=\frac{\frac{4}{5}}{3}\\\mathrm{Simplify\:}\frac{3x}{3}:\quad x\\\mathrm{Simplify\:}\frac{\frac{4}{5}}{3}:\quad \frac{4}{15}\\x=\frac{4}{15}[/tex]

Answer:

[tex] \frac{4}{15} [/tex]

2nd answer is correct

step by step explanation

[tex] \frac{3}{4} \times x = \frac{1}{5} \\ x = \frac{1}{5} \times \frac{4}{3} \\ x = \frac{4}{15} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

a Fair coin is tossed 4 times. What is the probability of not getting all heads?​

Answers

Answer:

15/16

Step-by-step explanation:

The probability of not getting all heads is

1 - P(all heads)

P (all heads) =P(heads) *  P(heads)* P(heads) * P(heads)

                      1/2* 1/2 * 1/2 * 1/2 = 1/16

1 - 1//16 = 15/16

Please help me in this question.

Answers

Answer:

Step-by-step explanation:

(i) Area of ABCD = (base1+base2)*height/2

                           = (6+12)*4/2 = 36 cm2

(ii) Volume = Area of ABCD * length = 36 * 25 = 900 cm3

(iii) Total SA = Area of ABCD *2 + 25*5*2 + 6*25 + 12*25

                    = 72                         + 250      + 150   + 300

                    = 772cm2

If a =(9,18) and b=(1,12) what is the length of ab

Answers

Answer:

AB = 10

Step-by-step explanation:

Use the distance formula: √(12 - 18)^2 + (1 - 9)^2

√36 + 64

10

Answer:

10 units

Step-by-step explanation:

Use the distance formula. Substitute the values, (1-9)²+(12-18)²=100. The square root of 100 is 10.

If y varies directly as the square root of x and y = 8 when x = 36, find the value of y when x = 144. y =

Answers

Answer:

y=32

Step-by-step explanation:

cross multiply

36/4 *144/y

144*8/36

=1152/36

y=32

Answer:

D. -180

Step-by-step explanation:

Suppose you are planning a ward party. Last year, there was a similar activity and 150 people attended. If the ward has grown by 9%, how many people do you expect will attend this year? (Round your answer to the nearest whole number.)

Answers

Answer:

164 people

Step-by-step explanation:

100% represents the 150 people who attended last year.

this year , there is an increase of 9% , which will make the total percentage to be 109%.

if ; 100% = 150 people

     109% = ?

cross multiply to get 163.5 the round off to get 164

What is the x-value that solves the system 4x-y=21 and y=3x-7

Answers

Answer:

x=14

Step-by-step explanation:

4x-y=21

y=3x-7

Substitute the second equation in for y in the first

4x - (3x-7) = 21

Distribute the minus sign

4x -3x +7 = 21

x +7 = 21

Subtract 7 from each side

x+7-7=21-7

x=14

Answer:   x=14 is right answer

4x-y=21 =

Slope = 4

x-intercept = 21/4 = 5.25000

 y-intercept = 21/-1 = -21.00000

y=3x-7 =

 Slope = 6.000/2.000 = 3.000

 x-intercept = 7/3 = 2.33333

 y-intercept = -7/1 = -7.00000

Step-by-step explanation:

Step  1  :

Equation of a Straight Line

Graph of a Straight Line

Calculate the Y-Intercept

Calculate the X-Intercept

Calculate the Slope

Hope this helps.

A rectangular pyramid has a volume of 1.512in, a height of 12 in., and a base length of 21 in. What is the width of its buse?
2 in.
6 in.
12 in
18 in.

Answers

The answer this 6 in because 12 x 21 x 6 = 1512in
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