Mathematics High School

PLEASE HELP simplify the following expression 4+√-4+√-9+7

Answers

Answer 1

Answer:

your answer simplified is:

13+3i

Related Questions

A package of 4 pairs of insulated socks costs ​$26.76. What is the unit price of the pairs of ​socks ?

Answers

$6.69
just divide the total amount by how many there are..

whats 17+-44 describe how you got that answer”

Answers

Answer is -27
If it’s a negative and a positive then the answer will be a negitive but if it’s two negatives then the answer will be positive

Answer:

17 plus 44 is 61.

Step-by-step explanation:

I used a calculator. In order for ur brain to learn something new, its got to get rid of some stuff. am I right?

Which of the following shows the lengths of the sides of a right triangle?

A. 2, 3, 4

B. 5, 7, 11

C. 6, 8, 10

D. 8, 12, 15

Answers

Answer:

C

Step-by-step explanation:

use the formula a²+b²=c²

Which describes the graph of y=(x+6)^2+1?

A. Vertex at (-6,-1)
B. Vertex at (6,-1)
C. Vertex at (-6,1)
D. Vertex at (6,1)

Answers

C. Vertex at (-6,1)

Alfredo is buying a watch for $200. He will make an initial payment of $50 and
then pay the remaining balance in payments of $15 per week.
Which function can be used to find a, the amount he will still need to pay at the
end of n weeks?

Answers

Answer:

Step-by-step explanation:

There is nothing to choose from.

However, 200-50 down payment will leave 150 left on the watch. 150 divided 15 a month is 10 months.

200=50+15(n)

200=50+15(10)

What is -25.83538 times 29 to the power of three divided by 27.954?

Answers

i got −15,045,083.2130533

Question : WHICH OF THE LINES IS PARALLEL ? HOW DO YOU KNOW ? ​

Answers

Answer:

B and R

I think that is the name of the lines. If not the the first two lines!!!!

A company makes steel rods shaped like cylinders. Each rod has a radius of 2 centimeters and height of 70 centimeters. How much steel will the company need to make 243 rods? Use 3.14 for pie, and round your answer to one decimal

Answers

Answer:

213,645.6cm³

Step-by-step explanation:

Area of a cylinder is expressed as;

V = πr²h

r is the radius = 2cm

h is the height = 70cm

Get the volume of one rod;

V = πr²h

V = (3.14)(2)²(70)

V = (3.14)(4)(70)

V = 879.2cm³

one steel = 879.2cm³

243 rods = x

Cross multiply;

x = 879.2 * 243

x = 213,645.6

The company will need 213,645.6cm³ volume of steel to make 243 rods

What us the answer?​

Answers

Answer:

The graph so C

Step-by-step explanation:

Cause u can’t get two or more x values for different for one y value( if u plug in 3 and u get 5, u can’t plug in 3 again and get 10)


Need help ASAP plzzzzz

Answers

Answer:

y=2x+1

Step-by-step explanation:

Input X=2 into the function, so y=2(2)+1, which is 5. This matches the table.

Answer:

It's the first one: y= 2x +1

Step-by-step explanation:

If you multiply 2 by 2, you'll get 4. then you add 1. You'll get 5.

same with the others-

WILL GIVE BRAINLIEST HELP!!! THESE ARE FOR MY EXAM
An equal amount of three different juices are combined to make a quart of punch.

How much of each type of juice are needed to make 4 quarts of punch?

Answers

Answer:

1.33333333quarts

1.3(repeating) quarts

Step-by-step explanation:

please help! thanks

i kinda need it soon too

Answers

Answer:

43-5= 38 (subtract the y-intercept from the last number to see how many stamps were sold over the past two months)

38/2= 19 (the number of stamps sold over 2 months divided by how many months it took for those stamps to be sold)

19 is what goes in the box

Linear equations- please help me
−5(5x+3)−5x+1=−44

Answers

the answer is x=1
Add the numbers
Combine like terms
Add
to both sides of the equation

Simplify

Divide both sides of the equation by the same term

Write an equation of the line in slope-intercept form.
(0.2)

Answers

Answer:

y = x + 2

Step-by-step explanation:

The slope is 1

The y-intercept is 2

Answer: y=2x+0

Step-by-step explanation:

Jasmine took out a college loan of $55,000.00 for college for 10 years. The interest rate
is 4 7%. What will the total cost of the loan be for 10 years?

Answers

Answer:

57,585

Step-by-step explanation:

55,000.x4.7%=2585.

55000.+2585=57,585

Answer:

$57,337.50

Step-by-step explanation:

In order to get the answer we would have to add 55, 000 and 4 [tex]\frac{1}{4}[/tex]% of 55,000 (because of the interest rate). In order to find 4 [tex]\frac{1}{4}[/tex] % we would have to multiply 55, 000 by 0,0425. So now we get the following.

Total cost of the loan = 55,000 + 55,000 x 0.0425 = 55,000 + 2,337.5 =

57,337.5


For a fairground ride the maximum weight of a person is 100kg to the nearest kg.
What is the maximum a person can weigh to go on the ride safely

Answers

Answer:

The maximum a person can weigh to go on the ride safely is 100.5 kg

Step-by-step explanation:

The specification for the maximum weight of each person that goes on the ride = 100 kg

Therefore, given that the maximum possible error of a measurement is equal to 1/2 multiplied by the unit of measurement, we have that the specified maximum weight, [tex]W_{max}[/tex], can be written as follows;

[tex]W_{max}[/tex] = (100 ± 0.5) kg, which gives the maximum a person can weigh to go on the ride safely as 100 kg + 0.5 kg = 100.5 kg

whats the slope of y= 1 over 2x-2

Answers

Use Cymath to find your answer

What’s the length of the diagonal line that splits the square?

Answers

The length of the diagonal line is 191 meters.

135² + 135² = c²
18225+18225 =c²
√36450 = √c²
190.91 = c

Round to the nearest meter = 191 meters

I NEED HELP ASAP! SO EASY

Answers

Answer:

165 hope this helps

Step-by-step explanation:

[tex]--------------------------------------------[/tex]

Answer:

159

[tex]--------------------------------------------[/tex]

Step-by-step explanation:

-4 + 91=87

87 + 72=159

[tex]--------------------------------------------[/tex]

SIMPLE

find the length of x and y

Answers

Answer:

x = 10.296

y = 5.831

Step-by-step explanation:

You can use the Pythagorean theorem to solve the triangles shown in various ways.

9²+5²=x²

x = 10.296

5²+3²=y²

y = 5.831

Hello I need help. What's 10.40 + 66.9 + 100.4 x 2 =
help please

Answers

Answer:

278.1

Step-by-step explanation:

Follow order of operations

Multipacation first (in this situation) and then just add left to right :)

regularly $59.99, on sale for 40% off. What is the
totall paid, including 7.875% tax?


i just wanna know how to do the work:)

Answers

$59.99 divided by 40% would be $23.99 and if you deduct the said number by $59.99, this would make $36.

$36 + 7.875% tax (36 divided by 7.875 x 100) would be $38.39

A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than the second side. Find the length of each side of the triangle.

What equation represents the length of the third side if the second side is length s?
2s - 10
2s + 10
s - 10
s + 10

Answers

Answer:

side            -          equation       -         measurement

1st side       -           2s - 65         -                  55cm

2nd side     -               s               -                  60cm

3rd side      -            s - 10           -                  50cm

Step-by-step explanation:

total = 165

side - s

1st side = 2s - 65

2nd side = s

3rd side = s - 10

1st side + second side + 3rd side = 165

2s - 65 + s + s - 10 = 165

2s + s + s - 65 - 10 = 165

4s - 75 = 165

4s = 165+ 75

4s = 240

s = 60

1st side = 2s - 65

            = 2(60) - 65

            = 120 - 65

            = 55cm

2nd side = s

               = 60cm

3rd side = s - 10

              = 60 - 10

              = 50cm

3rd side is represented by s - 10 as it is less than the second side by 10cm hence taking away the 10 from the side forming the equation s - 10

Answer:

s-10

I took the quiz

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is
a positive or negative correlation, describe its meaning in the situation.

Answers

Positive correlation as time goes on there is more women in the army

Answer:

The answer is A

Step-by-step explanation:

hello pls help with this ​

Answers

Answer:

C

Step-by-step explanation:

it’s c step-by step explaination

In a group of 250 music lovers, 135 of them like folk songs and 150 like modem
songs. By drawing a Venn-diagram, find;
(i) how many people like both the songs?
(ii) How many people like only one song?




Please help me i will mark brainlist ​

Answers

Answer:

i cant make a diagram but here i go.

Step-by-step explanation:

250-135=115

250-150=100

100+115=215

250-215=35

So your answer is that 45 people like both, 115like modern, 100 like folk song, and 35 like both.

marissa got an 85% on her math quiz. She had 34 questions correct. how many questions were on the quiz?

Answers

Answer: 40 questions I think

Step-by-step explanation:

Answer:

40 is the answer

Step-by-step explanation:

85/100=34/x

Calculate the average speed of an insect that walked 27 centimeters in 9 seconds. *

A 9 cm/s
B 27 cm/s
C 243cm/s
D 3 cm/s

Answers

Answer:

D) 3cm/s

Step-by-step explanation:

Speed (or velocity) is calculated with d/t (distance/time). From the multiple-choice options, we know the unit is cm/s, which makes it super convenient.

Now, using the equation and seeing that 27cm is the distance and 9s is the time, 27/9 =3.

Therefore, the answer is D, 3cm/s.

Hope that helps!

someone buys a pen for 1.09 and paper for 2.50 how much more does the paper cost more then the pen

Answers

Answer:1.41

Step-by-step explanation: subtraction

2.50-1.09= 1.41 i think

Use the expression 10x2 + 9x + 11 to answer the following: Part A: How many terms are in the expression? Part B: Name all coefficients in the expression. Part C: What is the constant in the expression?

Answers

Answer:

terms 3

coefficients 2

constant is your 11

Step-by-step explanation:

Other Questions
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