What is the sum o\(\sqrt{-} 2 and \sqrt{} -18\)

Answer:

Step-by-step explanation:

\(\sqrt{-2}=\sqrt{2}i\\\\\sqrt{-18}=\sqrt{2*3*3}i=3\sqrt{2}i\\\\\sqrt{-2}+\sqrt{-18}= \sqrt{2}i+3\sqrt{2}i\\ =(1+3)\sqrt{2}i\\\\=4\sqrt{2}i\)

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Solve each equation. Check your solution: t-7=2

What is 95×95 using mental math?

simplify 5.142857142857143

The length of a rectangle is 3 1/6 cm to longer than its width If the perimeter of the rectangle is 15 1/3 cm, What is the width and length of this rectangle? I WILL MARK BRAINLIEST!

I'LL GIVE BRAINLIEST!!
( True / False ) Force is used in aristocracy.
If true how?
If false why?

The solution to ? Is m= 1.

A). m + 2 = 1

B). m + 1 = 3

C). m + 1 = 2

D). m - 2 = 1

1. Cara has saved $4,000 to buy a car. Rick wants to buy a new television set. He has saved 1/10 as much as Cara. How much has Rick saved. Explain how you got your answer.
2.Nathan’s orchestra has 18 string musicians, 9 percussion musicians, 15 brass musicians, and 12 woodwind musicians. Six of the musicians cannot play in the next performance. If the remaining musicians plan to sit in rows of 6 chairs, how many rows of chairs are needed? Write an equation and/or explain how you solved the problem.





3.A bakery sold croissants to local restaurants. The table shows how many croissants were sold to each restaurant. The croissants were sold 6 to a box.

Croissants Sold

Restaurant
Number of Croissants
The Coffee Counter
546
La Claudette
768
Bon Jour
858
How many boxes of croissants did the bakery sell to La Claudette? Write an equation and/or explain how you solved the problem.






4.Gina is training for a marathon. She ran 4.6 miles on Friday and 6.75 miles on Saturday. On Sunday, she ran13 miles. How much farther did she run on Sunday than she did on Friday and Saturday combined? Write an equation and/or explain how you solved the problem.




5.At a dry cleaning store, it costs $1.79 to clean a man’s dress shirt and $8.25 to clean a suit. Thomas brought in 4 shirts and 1 suit to be cleaned. How much will he be charged for the dry cleaning? Write an equation and/or explain how you solved the problem.




6.At the grocery store, Sunil buys 5 pounds of chicken breast for $1.59 per pound. He also buys a jar of tomato sauce that costs $3.98. He gives the cashier a $20 bill. How much change should Sunil receive? Write an equation and/or explain how you solved the problem.






7. Maria likes to watch Olympic swimmers on TV. In the closest race, her favorite swimmer lost by two-thousandths of a second. What is this amount represented as a decimal?



8.The table below shows the cost of fruits at a produce stand. Alberto bought two bananas, a kiwi, and a pound of apples. How much did he spend? Write an equation and/or explain how you solved the problem.

Fruit
Cost
Apples
$2.05 per pound
Bananas
$0.39
Kiwis
$0.50 each







9. Students are selling muffins at a school bake sale. One muffin costs $0.25, 2 muffins cost $0.37, 3 muffins cost $0.49, and 4 muffins cost $0.61. If this pattern continues, how much will 6 muffins cost? Write an equation and/or explain how you solved the problem.






10. The four highest highest scores in a dance competition were 7.509, 7.3, 7.5, and 7.51. List the scores from greatest to least.

Deanna borrowed $650 at 8% 0 simple interest. How much - 52 interest did she pay for 1 year?​

Which statement is the best comparison between the populations of the two continents in 2008

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(Can someone pls answer all questions and show how u got it?)
1. Find 5% of 196
2. Find 15% of 430
3. Find 10% of 8
4. Find 5% of 88
5. Marco bought a 64 ounce bag of popcorn. He ate 5% of the bag with his lunch. How much popcorn did he eat at lunch?
6. Wesley spent $35.60 at the grocery store. 15% of that was spent on fruit. How much did Wesley spend on fruit?
7. Xavier filled a 36 ounce cup with water. He quickly drank 20% of it. How much water did he drink?

Brandon came home from school and informed his mother that he had volunteered to make cookies for his entire grade level.He needs 3 cookies for each of the 36 students in seventh grade. Unfortunately, he needs the cookies the very next day! Brandon and his mother determined that they can fit 96 cookies on two cookie shIs the number of cookies proportional to the number of cookie sheets used in baking?
Create a table that shows data for the number of sheets needed for the total number of cookies baked.

Number of pans
Number of cookies


2
36


4
72


10
180


16
288


The unit rate of x/y is __________.
Constant of Proportionality:_______.
Explain the meaning of the constant of proportionality in this problem?

Two pounds of peaches cost $4.50, 5 pounds cost $11.25, and 10 pounds cost $22.50. Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship.


Y Cost
$4.50






X pounds
2







k=y/x Write an equation where y is the cost and x is the number of pounds.

What is (a+b) whole squared?

Becky takes out a loan for $5,000. She plans to repay the loan in 8 years. The interest rate is 7.3% compounded annually. How much will she have to pay in interest?

Which figure has a greater volume, and how much greater is it?


The volume of figure 1 is 972 feet cubed greater than the volume of figure 2.

The volume of figure 2 is 972 feet cubed greater than the volume of figure 1.

The volume of figure 1 is 1,134 feet cubed greater than the volume of figure 2.

The volume of figure 2 is 1,134 feet cubed greater than the volume of figure 1.

Deposition does NOT occur

A. as a glacier melts.

B . as rocks move downhill due to gravity.

C . when a river empties into the ocean.

D . as calcite dissolves from limestone.

PLZ HELP WILL MARK BRAINLIEST

Find the perimeter of this shape.

At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.


Ketchup Relish Chili
54 36 60


Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042

30-2⁴+4(8-5)/6
(answers with steps pls-)

Macy’s is having a sale on designer handbags. A coach Purse had a 30% discount off their original price of $375.00.

1: How much discount was taken off ?

2: What is the new selling price? Write your answer in a complete sentence

Directions: Drag each tile to the correct box.

Place the parallelograms in order from least area to greatest area.

This figure is made up of two rectangular prisms.

What is the volume of the figure?

Do the ratios
8
12
and
3
2
form a proportion?

5y-3/5=4/5. Solve for y.

please provide answer and explanation !!

Three lines are given on each graph that intersect at one point. Find the slope-intercept equation of each line. Graph and write an equation for one additional line that intersects at the same point. Vertical and horizontal lines are not permitted.

x-12-23+7.5=1 ; what is the value of x?

Davin and Kevin both think that their lego tower is the tallest. Davin's tower is 346.7 centimeters tall and Kevin's is 346.700 centimeters tall. Who has the tallest tower? How do you know? Explain your answer in complete sentences.

Please Hurry. I need this answer quickly please.

can someone help me please its a big part of my grade