Solve by completing the square with working out please

x^2-7x-30=0

Answer:

x1 = -3 and x2 = 10

Step-by-step explanation:

hope this helps

Answer:

answer attached below

Step-by-step explanation:

can someone please help to explain it the quick way? ASAPPPPP

A group of students must collect at least $120 to organize a science fair. They have already collected $40. Which graph best represents the possible amounts of money the students still need to collect?


Number line graph with closed circle on 80 and shading to the right.

Number line graph with closed circle on 120 and shading to the right.

Number line graph with closed circle on 40 and shading to the right.

Number line graph with closed circle on 160 and shading to the right.

A photograph measures 5 inches wide and 7 inches long. If you have the photograph enlarged to fit a frame 49 inches long, what is the widest the photograph can be?

can someone answer this

Please help! :/

The dimensions of a rectangular prism are shown below:

Length: 1 1/2 feet
Width: 1 foot
Height: 2 1/2 feet
The lengths of the sides of a small cube are 1/2 foot each.

Part A: How many small cubes can be packed in the rectangular prism? Show your work.

Part B: Use the answer obtained in part A to find the volume of the rectangular prism in terms of the small cube and a unit cube.


Correct answers: Brainliest and a Thanks!
Incorrect answers: 1-2 star (Make sure you know the answers please!)
Improper answers: Reported and 1 star (No links!!)

I need help to figure this out. If you happen to answer this, thank you very much.

HELP WILL MARK BRAINIEST
What is the median for the set of data?
71
70
72
74

Sam rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 99 cents for each mile driven. Sam had to pay $162.53 when he returned the truck. For how many miles did he drive the truck?

HELP THIS IS DUE TMR

....................

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

BRAINILIST TO FIRST PERSON TO GET IT CORRECT AND BE FIRST!! (COIN JACKPOT!!!!) I need help! so answer soon to get all my goods!!! (DON'T MISS OUT!!) XD But seriously- HELPPPPP!

No rush. Don’t answer if you don’t know.

What is the solution to the equation -6x -11=19

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.

The scatter plot to the right shows the fat and calorie content of several snack foods. The function y = 10x + 190 represents the relationship of the given data. What does the 10 in the function represent in the relationship between grams of fat and calories in the snack food studied?

Solve the equation −12 + x = −16 for x.

Can someone help?- I will mark brainliest !!

Petra is making a batch of extra large donuts by stamping circles in dough using a pastry stamp with a diameter of 5 inches. For the donut hole, she stamps out a circle using a pastry stamp that has a diameter of 2 inches.

How many square inches of dough are left in the donut after the hole has been removed?

Step 1 - Find the radius of each circle

Step 2 - Find the area of the large circle

Step 3 - Find the area of the small circle

Step 4 - Area of large circle minus area of small circle

Area = \(\pi\)²


Describe how you solved this problem using complete sentences and include all relevant formulas and calculations. Use 3.14 for \(\pi\)

One angle of a triangle measures 125°. The other two angles are in a ratio of 2:9. What are the measures of those two angles?

Please help me. Mark me the branliest.

Topic: Percentage

Q1) 80% of a dog's mass is equal to 24% of the mass of a lion. If the mass of the lion is 105 kg more than the mass of the dog, find the total mass of the dog and the lion.​

Mr. Poyser uses 4 2/3 cups of flour to make 7 dozen oatmeal-raisin cookies.

Question 1
PART A

How many cups of flour does he need to make a dozen cookies? Use the equation 7c = 4 2/3.

Enter the correct answer in the box.

explain why it is the only solution. 4+8t-y=y-t+8

The cost of the fabric is $1.31. What would you expect to pay for a similar piece of fabric that is 18 inches by 42 inches?

Create a histogram that shows this information.

please help due soon ​

A. Find the smallest positive integer m such that C^m(9) = 1
B. Find all n such that C^3(n) = 16

Saskia is solving an equation in one variable and gets the equivalent equation 3=3. Assuming her work is correct, what can she conclude about the original equation?

Find the area of the following figure if a line drawn from the side of length 8 to the side of length 2 is 8 units long.

The coordinates of the four vertices of the rectangle are (1,-1), (4,-1), (4,1), and (1,1). The perimeter of the rectangle is how many units?

Bob's Gift Shop sold 700 cards for Mother's Day. One salesman, Samantha, sold 10% of the cards sold for Mother's Day. How many cards did Samantha sell?
Divide/scale down to solve for the missing percent.