Mathematics High School

10 points, thank you in advance :)

Answers

Answer 1

Answer:

-3 + 10i

sqrt-100 = sqrt100i

sqrt100 = 10

So,

-3 + 10i

Related Questions

What is P(2, then 2) when spinning the spinner shown at the right twice?

Answers

Answer:

1/25

Step-by-step explanation:

Probability of an event = number of required outcomes / number Total possible outcomes

Total number of possible outcomes = (0, 1, 2, 3, 4) = 5

Required outcome = (2) = 1

P(2) = 1 /5

Second spin

P(2) = 1 /5

Therefore, the probability of ;

P(2, then 2) = first spin * second spin = 1/5 * 1/5 = 1/25

PLEASE HELPPPPPPPPP!!!!?????

Answers

Answers:

Mean = 69Median = 69Mode = {68, 70}

===============================================

Explanations:

To get the mean, you add up all of the values and then you divide by N, where N is the number of values in the list. In this case, you'll divide by N = 8.

Adding up all the values gets you 70+68+70+72+68+66+65+73 = 552. Dividing that over 8 then leads to the arithmetic mean of 552/8 = 69

-------

To find the median, you'll first sort the values from smallest to largest. You should have this set {65, 66, 68, 68, 70, 70, 72, 73} after sorting. Next, cross off the smallest and largest values to end up with this smaller set {66, 68, 68, 70, 70, 72}. We do this so we can locate the middle-most item.

Repeat the process of crossing off the smallest and largest items to get {68, 68, 70, 70}. Do so one more time and we get {68,70}.

The midpoint of those two values is (68+70)/2 = 138/2 = 69. The median is 69. The mean and median may not always be the same value.

--------

The mode is the most frequent value. In this case, we have 68 and 70 show up exactly twice for each unique value. This is the most compared to the other unique values that only show up exactly once.

It is possible to have more than one mode, as long those values are more frequent than the rest. We denote the mode as a set, so the mode is {68, 70}

Jane has saved 600 dollars in a college fund. She added money to the account over the next year and at the end of the year, the account had 890 dollars.
!! Write an equation to represent the amount she saved over the year. !!

Answers

Here’s the link.
explanation:

Answer:

S=End amount-Starting amount

Or(with values)

290=890-600

Step-by-step explanation:

So lets get together all our variables.

First, lets create a variable that shows the amount of money saved over the year.

Lets use S, for savings.

Next, lets take our end value, which was 890, and subtract it from our orgninal value.

This will get you the amount of money that Jane earned over the year. This will look like:

890-600

End value=orginal value.

Now S will be equal to the amount of money Jane earned.

So we can write this as:

S=890-600

Amount of money earned=end value-orginal value

Hope this helps!

pls help! easy and will give brainlyest. which of the following statements about the Pythagorean Theorem and its convers are true

Answers

Answer:

C: A and B are true

we struggling at the moment

Answers

Answer:

Step-by-step explanation:

area of square is a²

14²=196 m

haveca nice day

BRAINLIEST TO CORRECT ANSWER! NO links as answers, or you will be reported!! (question 5)

Answers

Answer:

The answer is B you do not have to subtract the 7... Hope this helps

Step-by-step explanation:

plz give brainliest and rating

Subtract 7 from the McQueen

A sphere has a surface area of 196 pi. What is the radius of the sphere?

r = 7

r = 14

r = 65.33

r = 12.12

Answers

R=12.12 is the answer

Explain how you determined your answer.

Answers

????

answer for what question

Answer:

sorry there is a blank there.

A total of 40 parents volunteered to bring a cake for the Holiday fair.Of the 40 volunteers that brought cake,10 of them brought two cakes. Out of all the cakes at the holiday Fair , 30% were chocolate. How many cakes were chocolate?

Answers

Answer:

15!

Step-by-step explanation:

so 40 people volentered to bring cakes, but 10 brought 2. So (30*1)+(10*2)=50 cakes. So, 30 percent of 50 cakes would be 15. To double check, times 50 by 100 and then 30 percent would become 30 (making super sure the actual answer is 15)

Which of the following is the solution to the equation 64^(z+4) = 1024

Answers

2^(6*(z+4)) = 2^10

6z + 24 = 10
z = -7/3

If the questions are correct I will give brainliest!

Answers

Answer:

Step-by-step explanation:

13. 2/3

14. 0

15. 5/2

Can angles that measure 60, 60 and 60 degrees form exactly one triangle, more than one triangle or no triangle? Why?

Answers

Answer:

Yes, a 60,60,60 angle triangle equals 180

Step-by-step explanation:

Every triangle has to equal 180 degrees or it's not a triangle at all. This forms 1 triangle.

A triangle has sides with lengths of 10 millimeters, 17 millimeters, and 18 millimeters. Is it a right triangle?

Answers

Answer:

no, it is not

if it were a right triangle, 10² + 17² = 18²

but this is not the case

Step-by-step explanation:

we would use Pythagoras theorem to determine if it is a right angle

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

10² + 17² =

100 + 289 = 389

square root of 389 is 19.72 and not 18. thus, it is not a right triangle

To calculate the area of a triangle, you find the product of the base and height and then divide by 2.

Answers

Ok thanks for the answer

Answer:

Yes

Step-by-step explanation:

Someoneee plsss helpppp

Answers

The answer: -5 limbs

Answer: Compared : 0 to _5

Step-by-step explanation:

Assuming the zombie-mutant starts at 0 right?(loGic 101).’

So:

1. He grew 5 so that’s 5 limbs,

2.He lost 12 meaning 5 - 12 which is -7,

3.And lastly, he grew another 2 meaning -7 + 2 = -5

Hope this helped!

Good luck and hope you have a amazing day!

❤️‍ 29

Hilary paints a wall in her bedroom that has two windows, it has a base of 3 feet adna length of 5 feet. What percent of the wall does she paint? Round your answer to the nearest whole percent, if necessary. A 75% B 79% C 90% D 96%

Answers

Answer:

thats D

Step-by-step explanation:

Find the value of x.
K (7x + 21)
J
L
147
M
X=

Answers

Answer:

x=16

Step-by-step explanation:

K + M =180. (opposite angles of a cyclic quadrilateral are supplementary )

7x+21+47=180

7x+68=180

7x=180-68

7x=112

7x/7=112/7

x=16

A city has a population of 280,000 people. Suppose that each year the population grows by 8.25%. What will the population be
after 14 years?

Answers

Population=280,000X(1.0825^14)= 849,471.2827814284 people.

You didn’t include what this needed to be rounded to. Probably nearest thousand people. 850,000 people.

In order for the data in the table to represent a linear function with a rate of change of +5, what must be the value of a?

a = 3
a = 8
a = 18
a = 33

Answers

Answer: C: A=18

Step-by-step explanation: If your are adding 5 every time the x value goes up by one, then you would add 5 to13, henceforth getting 18.

The value of a that completes the table is 18

Rate of change of a function

The rate of change of a function is expressed in term of the slope.

In order to determine the value of a, we will use the expression below;

Slope = a - 13/4-3 = 23-13/5-3
a-13 = 10/2

a - 13 = 5

Add 13 to both sides

a =5 + 13

a = 18

Hence the value of a that completes the table is 18

Learn more on rate of change here: https://brainly.com/question/8728504

#SPJ9

Question 3 please NO spam math grade 7

Answers

Answer:

Step-by-step explanation:

1. right

2. right

3. right

4. right

5. wrong

6. right

im not 100% sure but this is what i think

Find the Volume of a cone of 10 inches and height of 30 inches.

Answers

Answer:

If the radius = 10, then 3141.59 cubic in.

If the diameter = 5, then 785.4 cubic in.

Step-by-step explanation:

You didn't specify whether the 10 was the radius or diameter.

I used the formula V = 1/3 * h * π * r².

pls help
In the diagram, line m is parallel to line n.

What is the measure, in degrees, of angle ABC?

Answers

Answer:

I got 55..and I also got 50.......

PLZ HELPPPP !!!

What is the height of a cone that has a volume of 90 mand has a radius of 3.5 m?

Answers

Answer:

Step-by-step explanation:

Calculate the volume of a cone by its base and height with the equation volume = 1/3 * base * height. You can calculate the height of a cone from its volume by reversing this equation. Triple the volume amount. For this example, the volume is 100.

A company surveyed its employees regarding the number of miles
commuted each day. The data set below shows the results
9, 15, 26, 32, 65, 5, 10, 19, 26, 32, 8, 15, 25
30, 40, 7, 12, 21, 27, 35, 60, 29, 23, 14,8
Using a box plot, determine the outlier value of the data set above.
A. 65
OB. 23
C. 60
D. The data set does not contain an outlier.
E. 5

Answers

It might be c.60 I’m not sure

Answer: According to Study Island the answer is 65

Step-by-step explanation:

In order to determine the outlier value, create a box plot.

To create a box plot, order the data.

5, 7, 8, 8, 9, 10, 12, 14, 15, 15, 19, 21, 23, 25, 26, 26, 27, 29, 30, 32, 32, 35, 40, 60, 65

Find the median, the first quartile (Q1), the third quartile (Q3), and the interquartile range (IQR).

Median = 23

Q1 =

10 + 12

= 11

Q3 =

30 + 32

= 31

IQR = Q3 - Q1 = 31 - 11 = 20

Find the upper and lower fences for the given data.

Lower Fence = Q1 - 1.5 × IQR

= 11 - 1.5 × 20

= -19

Upper Fence = Q3 + 1.5 × IQR

= 31 + 1.5 × 20

= 61

10 A town is planning a new library. The architect uses a computer program to
design the new children's section shown in the diagram.
10
+
- 10
-8
Which expression can be used to find the area of the children's section?
Choose all that apply.
A (5 X 4) + (6 X 10)
B
(11 X 4) + (6 X 6)
C (11 X 10) - (6 X 6)
D(5 X 4) + (6 X 4) + (6 X 6)
E (11 X 4) + (6 X 11 - 15 X 6)

Answers

Step-by-step explanation:

wala bang tagalog na tanong

7x2 + 49x - 56
What is the GCF? (If there is no GCF, type "na")

When going through the process of determining the factors after removing any possible GCFs, the two factors need to:

•add up to______x
• multiply to_______

Answers

Answer:

Step-by-step explanation:

i know it already

Which expression has the same value as 16.2 – 8.7?
16.2 + (-8.7)
16.2 - (-8.7)
-8.7 + (-16.2)
8.7 – 16.2

Answers

Answer:

16.2 + (-8.7)

Step-by-step explanation:

16.2 + (-8.7) has the same value since the negative and positive will end up being negative.

I need this question now please

Answers

Cos inverse of 1/5.. so the answer is 78.46

Which is the slop of the line that passes through the points (-3, 1) and (4, -2)?

A.) slope = -3
B.) slope = -3/7
C.) slope = 1/2
D.) slope = -7/3

Answers

Answer:

The answer is b. ok ok ok ok

If 24 apples represents 30% of her apple supply. How many total apples does Jasmine have?

Answers

Answer:

She has 80 apples in all.

Step-by-step explanation:

24=30%

(24÷3)=(30÷3)%

8=10%

(8×10)=(10×10)%

80=100%

The answers to your question is 1.25

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