Mathematics High School

Hurry plzzzzzz help

Answers

Answer 1

Answer:

8. 15

10. 90

12. 36

Step-by-step explanation:

The mean of the 5 data is 51.

(55 + 60 + 35 + 90 + x) ÷5 = 51

(240 + x) ÷5 = 51

240 + x = 255

x = 15

10.

The mean of the 5 data is 127.

(100 + 112 + 98 + 235 + x) ÷5 = 127

(545 + x) ÷5 = 127

545 + x = 635

x = 90

12.

The mean of the 5 data is 40.

(34 + 56 + 45 + 29 + x) ÷5 = 40

(164 + x) ÷5 = 40

164 + x = 200

x = 36

Related Questions

Please help, I will give brainliest to whoever helps!

Answers

63)B
64)J
65) i think B but i am not sure
66)
x -10
x 2
(x-10)(x+2)

A bag contains 7 orange marbles and 14 yellow marbles . If a representative sample contains 2 orange marbles then how much yellow marbles would you expect it to contain? explain.

Answers

Answer:

The answer is 6 marbels.

Hope this helps!

The representative sample for yellow marbles is 4. I got this answer because, since 7 is half of 14 and 2 is the representative sample for orange marbles and u multiply it by 2 it equals 4 and 2 is half of 4. Please mark brainliest answer

What is the sum of 5.3 x 10^5 and 3.8 x 10^4in scientific notation?

Answers

Answer:

=5.68×10^5

Step-by-step explanation:

Steven bought a watch for $140 and added a 40% markup before reselling.

What was the amount of markup?

Answers

Answer:

$196

Step-by-step explanation:

Find the area of the circle.
20 inches

Answers

The area is A≈31.83in²

Lu is making a quilt that is 20 squares wide and has 15 rows. The border of the quilt is made by using each toy design equally as often. There are a total of 6 toy designs. Each square can hold one design. How many of each design does she use for the border?

Answers

Answer:

Out of 6 designs 4 designs will have 12 repetitions and 2 designs will have 11 repetitions.

On the average each design will be repeated 11.67 times.

Step-by-step explanation:

HEre the width = 20 and length = 15

The perimeter = 2(l+b)

= 2( 20+ 15) = 70

The border of the quilt has 70 squares. Each square can have 1 design and there are 6 designs

Number of repetitions for each design = 70/6= 11. 67

6 designs can have 11 repetitions for 66 boxes= 6 *11= 66

4 squares will be left out. 70-66= 4

4 design can have additional repetition.

Meaning out of 6 designs 4 designs will have 12 repetitions and 2 designs will have 11 repetitions.

On the average each design will be repeated 11.67 times.

I need help with this question!!!!!

John was saving to buy a new pair of Nikes that cost $150. He has already saved $45. How much more does he need to save to buy the Nikes?

Answers

Answer:

105

Step-by-step explanation:

Answer:

105$

Step-by-step explanation:

150-45=105

Allison measures some artwork for framing. The first picture is 9 3/4 inches long and the second is 7 1/4 inches long. What is the difference in length of the art?

Answers

Answer:

2 2/4

Step-by-step explanation:

Since the first picture is 9 3/4 and the second is 7 1/4. You have to subtract to find the answer.

Ex:

5 - 1 2/4 = ?

First lets turn five in to a fraction 5 -> 5/1

Now lets turn one and a half into an improper fraction 1 2/4 -> 6/4

We can now subtract easily!

If f(x)= -9x+12, then f(20)=__

What is the answer?

Answers

Answer:

-168

Step-by-step explanation:

if this is right but hopefully

What is the approximate volume of the cone below?
7 cm
10 cm

Answers

Answer:

183

Step-by-step explanation:

The volume of the cone formula is : [tex]= \pi r^{2} \frac{h}{3}[/tex]

[tex]radius = 10 / 2 = 5[/tex][tex]v= \pi 5^{2} 7/3[/tex]

[tex]\pi 25 * 7/3= \pi * 58.33= 183. 26[/tex]

the approximate answer would be 183 cm

Find the value of x and the length of each chord.

Answers

Answer:

-50

Step-by-step explanation:

Of 220 seventh-grade students, 25% earn the Community Service Award. How many students earn the award?

Answers

Answer: 55

Step-by-step explanation:

55

Answer because it just works

2/3x - 5 = 1/2x - 3
X=

Answers

Answer:

x=12

Step-by-step explanation:

[tex]\frac{2}{3}x-5=\frac{1}{2}x-3\\\\\frac{2}{3}x-\frac{1}{2}=-3+5\\\\ \\\frac{4}{6}x-\frac{3}{6}=2\\\\\frac{1}{6}x=2\\ \\x=12[/tex]

Choose the graph that represents the following system of inequalities:

y ≤ −3x + 1
y ≤ 1 over 2x + 3

In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB.

Graph of two intersecting lines. Both lines are solid. One line f of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line g of x passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two lines intersecting lines. Both lines are solid. One line g of x passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two intersecting lines. Both lines are solid. One line passes g of x through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Graph of two intersecting lines. Both lines are solid. One line f of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded below the line.

Answers

9514 1404 393

Answer:

Step-by-step explanation:

Both inequalities have y ≤ ( ), so will be bounded by solid lines, and shaded below that line (where y-values are lower). The first inequality has a boundary line with a steeply negative slope; the second has a shallow positive slope.

Since both are shaded below, the doubly-shaded area (AB) will be in the bottom quadrant, below the point of intersection of the lines. The graph attached below shows the correct shading.

Multiplying and Dividing Rational Expressions.

Answers

Answer:

under division

Step-by-step explanation:

a rational number is not defined under division..

How many pint are in a quart and how many quarts are in a gallon? The whole system (customary units) is confusing to me.

Answers

Answer:

1 qrt Equals to 2 pints

1 gallon Equal 4 qrts

I hope you are having an amazing day!

Help with A and B? Plz

Answers

Answer:

The answer to this question should be A=18.84 and B=28.26

There are 240 girls at the park. There are 360 more boys than girls at the park.How many boys are at the park?

Answers

Answer:

600 boys

Step-by-step explanation:

To find how many boys are at the park, add 360 to 240:

240 + 360

= 600

So, there are 600 boys at the park

Answer:

There are 600 boys at the park.

Step-by-step explanation:

The information we know is that there are already 240 girls at the park, and we also know that there are 360 more boys than girls. So to find out how many boys there are we must add the two values together, 240 and 360.

240 + 360 = 600

So that means there are 600 boys at the park.

what is the equation of the line that passes through (6,5) and (-7,4)

Answers

Answer:

y = 1/13 + 59/13

Step-by-step explanation:

y2 - y1 / x2 - x1

4 - 5 / -7 - 6

-1 / -13

1/13

y = 1/13x + b

4 = 1/13(-7) + b

4 = -7/13 + b

59/13 = b

y = 1/13 + 59/13

If you have a new deck of shuffled cards, what is the probability you will choose an ace? (52 cards, no jokers) A) 1 13 B) 1 2 C) 1 4 D) 1 6

Answers

Answer:

B 1/2

Step-by-step explanation:

I looked it up.

But I think it'd be C because there would be 4 aces in the deck, and C has 1/4

Answer: 1/13 is the correct answer.

Step-by-step explanation: You put the total amount of aces, which is four, on the top part of your fraction and the total number of 52 cards on the bottom of your fraction. Since four will divide into both numbers, you simplify 4/52 to get 1/13. 4 divided by four is one. 52 divided by 4 is 13. That is how you get your 1/13 from 4/52. Answer was confirmed correct on the test I took. I hope this helps you! Thanks!

Solve negative 2 x plus 3 is greater than or equal to negative 3

Answers

Answer:equal

Step-by-step explanation:

Answer:

x is less than or equal to 3

Step-by-step explanation:

subtract three from both sides which will give you 2x is greater than or equal to -6. then divide by -2 on both sides to isolate x (dividing by a negative number flips the sign and a negative divided by a negative equals a positive) so then you get x is less than or equal to 3

Marvin has a coupon the discount is the rental of a full-size car by $25 they decide to buy insurance for each day if the cost is $465 how much days dear well they rent the car right and solve the equation

Answers

Answer:

tht hard

Step-by-step explanation:

so i need points

I need help on finding the inverse for this help me.

Answers

So I have 2 answers are b and d u choose I tried my best to help mate

Which of the following are solutions to 2x^2-8x-90

Answers

Answer:

2(x-9)(x+5)

Step-by-step explanation:

(15 points) Which expression has a value of 5 x 10^-3

Answers

Answer:

Yellow is the answer

Step-by-step explanation:

In the following diagram, medians AD and BE intersect at F. Which of the following segments would not be true

1) ECD~ACB
2) EF= 1/2EB
3) ED||AB
4) the median drawn from C would pass through F

Answers

Answer is number 1 you welcome

The segment that is false is (2) EF= 1/2EB

The median lines of a triangle always meet at a point.

This means that the line from point C is true (option 4 is true)

The median divides the side lengths of the triangle into equal segments.

However, the centroid at point F do not divide line EB into equal segments

This means that:

The equation EF= 1/2EB is false

Hence, the segment that is false is (2) EF= 1/2EB

Read more about median and centroid at:

https://brainly.com/question/14317682

Nelson needs to separate 1/2 of medicine into 8 equal cups how much medicine is in each dose

Answers

Answer:

1/4 medicine is in each dose

What is a correct way to write the statement, "All dogs are mammals" in conditional form?
All mammals are dogs.
If an animal is a mammal, then it is a dog,
All mammals are not dogs.
If an animal is a dog, then it is a mammal.

Answers

Answer:

Step-by-step explanation:

I believe it’s the last one. A conditional statement will have “if”. The second statement doesn’t make sense. The first and third statements aren’t conditional. The 4th or last statement works.

(a + b)(a - b) = a^2 - b^2

1. Multiply the numerator and the denominator by the complex conjugate of the denominator.

2. Simplify the results into the real part and the imaginary part.

Divide the complex numbers. Show all work.

Answers

Answer:

Step-by-step explanation:

hello : given z = (-6-10i)/(4+7i)

the complex conjugate of the denominator is : 4-7i

1. Multiply the numerator and the denominator by the complex conjugate of the denominator: z = (-6-10i)(4-7i)/(4+7i)(4-7i)

use identity : (a + b)(a - b) = a² - b² calculate the product : (4+7i)(4-7i)

(4+7i)(4-7i) = 4² -(7i)² =16 -49i² =16+49 = 65..... ( i² = -1)

2) Simplify the results calculate the numerator : (-6-10i)(4-7i)

(-6-10i)(4-7i) = -24+42i -40i+70i² = -24+42i -40i-70 .....( i² = -1)

(-6-10i)(4-7i) = -94+2i

now : z = (-94+2i )/65 = (-94/65) +(2/65) i

the real part is : ( -94/65) and the imaginary part is : 2/65

Question 1 of 10
Which rays form the sides of ZCDE?
C
E
O A. DC
B. CE
C. CD
D. DE
E. ED
F. EC

Answers

Answer:

Ray DC and Ray DE

Step-by-step explanation:

Dc de i think am not completely sure

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