Sue has taken four exams so far in her History course. Her scores are 84.0, 78.2, 93, and 87.5. What is the average of these scores?

Answers

Answer 1

Answer: 85.7

Step-by-step explanation:


Related Questions

4. You are playing poker with some friends and are about to be delt 5 cards from a
well - shuffled deck.
A) How many different hands are possible?
B) How many hands contain clubs?

Answers

Answer:

hi

Step-by-step explanation:

If the order did matter, we'd be talking about permutations and the o... ... Paul Richard McElravy, Started playing poker with friends in 1982, casinos in 1991. ... There are 2,598,960 different combinations of five card poker hands. ... How many 5 card hand dealt from a standard deck of 52 playing cards contain exactly the ...

i think b

What's the name of angle C thanks for the help :)

Answers

Answer:

Reflex angle

Step-by-step explanation:

Properties of reflex angles:

1). Any angle measuring between 180° and 360°.

2). Other side of the reflex angle is either acute or obtuse angle.

By these properties,

Since, angle C measures more than 180° but less than 360° and opposite angle is an acute angle.

By these properties angle C and angle D are the reflex angles.

giving brainliest!!!

Answers

Answer:

133 square centimeters

Step-by-step explanation:

Answer:

Surface A≈146.25 square centimeters

Step-by-step explanation:

Pls help!! I’ve been trining to get the answer but I can’t pls help!!

Answers

Answer:

$5740

Step-by-step explanation:

get 2.5% of 5600

5600/x=100/2.5

(5600/x)*x=(100/2.5)*x

5600=40*x

5600/40=x

140=x

x=140 <----- 2.5% of 5600

5600 + 140 = $5740


2√63
Simplify
Bsbahajjssjjxjsjsjj

Answers

38 is your factor 36 and 63

“if there are 12 boys and 48 girls in a room, fill out all of the possible ratios of boys to girls that could be made.”

Answers

Answer:

1 boy 4 girls, 2 boys 8 girls, 3 boys 12 girls, 4 boys 16 girls

Find the difference 7/9 - 5/13 in lowest term

Answers

Answer:

46/117

Step-by-step explanation:

Answer:

46/117

Step-by-step explanation:

this is a type of fraction which can not be simplified

The price of a carton of eggs at Supermarket A is $2.10. The price of a carton of eggs at Supermarket Bis 40% less than the price at Supermarket A
What is the price of a carton of eggs at Supermarket B?

Answers

$1.26...Subtract $2.10-40%=$1.26

What is the inverse function

Answers

Answer:

it's simple just divide

Determine if the triangles are similar. If they are similar state why they are similar and
complete the similarity statement. If the triangles are not similar, select "N/A" for the last
two dropdowns.
R
Q
11
14
U
V
22
28
S
[ Select)
The triangles are
vby
[ Select]

SUV-A [Select]

Answers

Explanation is in a file when they travel

Please help for today

Answers

Answer:

football and soccer looks right :)

Step-by-step explanation:

Most likely football and soccer

Hye guys I need some heeeeeeeelp lol

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y= 19.25x / which is the 3rd one

Help pls!!!! Pls explain how you got the answer if you can!!! Have a blessed day
Also if you don’t know the exact answer answer and comments. And pls don’t waste my points this assignment is very important

Answers

Step-by-step explanation:

for perimeter you just add up all of the sides so :

(x+4) +( 2x)+(4x-2)+(3x-1) = 10x +1

Find the area of the shape below.
Give your answer in terms of pi
6cm
8cm
32cm
The diagram is not drawn to scale.

Answers

9514 1404 393

Answer:

  164π cm²

Step-by-step explanation:

The area of a circle is given by the formula ...

  A = πr²

The radius (r) is half the diameter (d), so the area of a semicircle in terms of its diameter is ...

  1/2A = (1/2)(π)(d/2)² = (π/8)d²

The given shape is the combination of three (3) semicircles. The smallest has a diameter of 6 cm; the middle-sized one has a diameter of (32 cm -6 cm -8 cm) = 18 cm. The largest has a diameter of 32 cm.

The total area will be ...

  area of largest + area of middle-size - area of smallest

  = (π/8)(32² +18² -6²) = (π/8)(1312) . . . . cm²

The area of the shape is 164π cm².

ONLY answer if you know! Which of the following will have a negative result? (1 point)
O-8-(-10)
O 12-14
07-(-3)

Answers

the negative would be 12-14 witch = -2

What is 0.9 divide by 2.647

Answers

Answer:

0.340007556

Step-by-step explanation:

its correct

Use the calculator mah g

Simplify quantity x squared plus 6 x plus 8 end quantity over quantity x plus 2 x2 + 1 x2 − 1 x − 4 x + 4

Answers

First off, remember that finding the x-intercepts means setting y equal to zero and solving for the x-values, so this question is really asking you to "Solve 4x2 – 2x – 5 = 0".

Now, let's start the completing-the-square process. To begin, we have the original equation (or, if we had to solve first for "= 0", the "equals zero" form of the equation). In this case, we were asked for the x-intercepts of a quadratic function, which meant that we set the function equal to zero

Answer:

D . x + 4

Step-by-step explanation:

(x² + 6x + 8) / (x + 2) =(x² + 2x + 4x + 8) / (x + 2) = (x + 2)(x + 4) / (x + 2) = x + 4

Correct choice is D

does a/9=25 i dont know

Answers

Answer:

225

Step-by-step explanation:

225 ÷ 9 =25

9 x 5= 225
225/9= 25
a=25

Plz help! Pretty easy problems!

Answers

Answer:

The first is 9 sq.units

The second is 8 sq units

The third is 180mm squared

Step-by-step explanation:

I WILL GIVE YOU 100 points and Braine at Math Properties of Equality, Part 2

For each expression, write an equivalent expression to show the

mathematical properties of equality.

Distributive Property:

6(m +4) = ?

Associative Property:

2 + (m + x) = ?

Commutative Property:

x + 3 = ?

Distributive Property:

3(2y - 6) = ?

Distributive Property:

m(y + 5) = ?

Answers

Answer:

1. 6(m + 4) = 6m + 24

2. 2 + (m + x) = (2 + m) + x

3. x + 3 = 3 + x

4. 3(2y - 6) = 6y - 18

5. m(y + 5) = my +5m

Step-by-step explanation:

1. Distributive property "distributes"/multiplies the 6 outside the parentheses to each term inside the parentheses.

2. Associative property deals with how terms and numbers are grouped into parentheses. The terms/numbers stay in the same order.

3. The commutative property means terms can change in order, and you will still get the same result.

4, 5. See #1 above. Distribute/multiply the number/term outside the parentheses to the numbers/terms inside.

Let me know if you have questions.

What is the value of a?

Answers

since the quadrilateral is covex, the sum of four exterior angles is 360 degrees

127 + 71 + 102 = 300

360 - 300 = 60

the answer is 60 degrees

Match each fraction on the left with the corresponding percent on the right. Some options on the right will be used more than
once.

Answers

Answer:

no picture

Step-by-step explanation:

HELP PLEASE CORRECT ANSWER PLEASE

Answers

Answer:

96 units^2

Step-by-step explanation:

(8*24)/2

According to the guideline from the Health Department, every over-weight child needs to take a fitness test.
Every ten over-weight children would be randomly grouped together to attend the fitness test. According to
the past experience, the probability for each child to pass the fitness test is 0.75 and whether a child can pass
the test is independent with the test result of other children.
(a) Many test sessions will be conducted regularly, each with 10 independent children. Find the expectation
and standard deviation of the number of children can pass the fitness test in a test session.
(b) Most likely, how many children can pass the fitness test in a test session? Justify your answer by
comparing the two outcomes with the relatively high probability.
(c) Find the probability that less than 8 children can pass the fitness test in one test session.

Answers

Answer:

According to the guideline from the Health Department, every over-weight child needs to take a fitness test.

Every ten over-weight children would be randomly grouped together to attend the fitness test. According to

the past experience

Step-by-step explanation:

Find slope of (2,3) and (-5,6).

Answers

Answer:

Slope is 3/-7

Step-by-step explanation:

[tex]slope = \frac{6 - 3}{ - 5 - 2} = \frac{3}{ - 7} [/tex]

2. Karen sells newspaper subscriptions. She earns $12 for each daily subscription and $4 for each Sunday- only subscription. How much will she earn if she sells 24 daily and 13 Sunday-only subscriptions in a week?​

Answers

Your Answer;

❀♡ 12 x 24 + 4 x 13 = 340 ♡❀

Answer:

340

Step-by-step explanation:

2 2/5 x 3/4
plz help me! and plz show your work.

Answers

Answer:1.8

Step-by-step explanation:

What is the value of x
15x + 1=46
Help plz
I will give brainliest

Answers

Answer:

3

Step-by-step explanation:

Answer:

The answer to this question is X=3

Step-by-step explanation:

15x3=45

45+1=46

Hope my answer helps you!!!

please help me if you know the answer

Answers

the expression equals 10 and if you solve all of the choices you will get 10 except for the 2 one the the correct answer is C
answer: C

At a new exhibit in the Museum of Science, people are asked to choose between 94 or 220 random draws from a machine. The machine is known to have 99 green balls and 78 red balls. After each draw, the color of the ball is noted and the ball is put back for the next draw. You win a prize if more than 61% of the draws result in a green ball. a. Calculate the probability of getting more than 61% green balls.

Answers

Answer:

0.0869 = 8.69% probability of getting more than 61% green balls.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

The machine is known to have 99 green balls and 78 red balls.

This means that [tex]p = \frac{99}{99+78} = 0.5593[/tex]

Mean and standard deviation:

[tex]\mu = p = 0.5593[/tex]

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.5593*0.4407}{99+78}} = 0.0373[/tex]

a. Calculate the probability of getting more than 61% green balls.

This is 1 subtracted by the pvalue of Z when X = 0.61. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.61 - 0.5593}{0.0373}[/tex]

[tex]Z = 1.36[/tex]

[tex]Z = 1.36[/tex] has a pvalue of 0.9131

1 - 0.9131 = 0.0869

0.0869 = 8.69% probability of getting more than 61% green balls.

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