Mathematics High School

Solve k^2+4k+4=25 by taking the square root of each side. Please show work, thanks

Answers

Answer 1

Answer:

Step-by-step explanation:

k=3 or k=−7 both choices are correct

Related Questions

A bag of Super Dog dog food, at $12.85, is one third the price of a bag of Power Dog dog food. Write and solve a division equation to find the price of a bag of Power Dog dog food. How much does a bag of Power Dog food cost?

Answers

Answer: $38.55

Step-by-step explanation:

Price of super dog dog food = $12.85

We can infer from the question that the bag of Super Dog dog food, costs $12.85, which is one third the price of a bag of Power Dog dog food.

Let the price of the Power Dog dog food.be represented by x. Therefore,

1/3 × x = 12.85

x/3 = 12.85

x = 12.85 × 3

x = 38.55

The price of a bag of Power Dog dog food is $38.55

If 7 is P percent of 13, then P is a number between

Answers

Where’s the question if

Answer:

25 and 50

Step-by-step explanation:

-25 – (-13) =




mathematics

Answers

It would be -12, because you have to use keep change change

Javon's first 3 quizzes had a mean score of 90%. If he scores 46% on his next quiz, what will be his mean quiz score for these 4 quizzes?

Answers

Answer:

[tex]Mean = 79\%[/tex]

Step-by-step explanation:

Given

[tex]Mean_3 = 90\%[/tex]

[tex]4th\ score =46\%[/tex]

Required

The mean of the 4 subjects

Mean is calculated as:

[tex]Mean = \frac{Total}{n}[/tex]

For: [tex]Mean_3 = 90\%[/tex]

[tex]Mean = 90\%\ n = 3[/tex]

So:

[tex]90\% = \frac{Total}{3}[/tex]

[tex]Total = 3 * 90\%[/tex]

[tex]Total = 270\%[/tex] --- this is the total in the 3 subjects

The mean of the 4 subjects is:

[tex]Mean = \frac{Total\ of\ 4\ subjecte}{4}[/tex]

[tex]Mean = \frac{270\% + 46\%}{4}[/tex]

[tex]Mean = \frac{316\%}{4}[/tex]

[tex]Mean = 79\%[/tex]

solve for x
similar triangles advanced

Answers

Answer:

x = 2.57

Step-by-step explanation:

6/x = 7/3

7x = 18

x = 2.57

check:

if x = 2.57

then:

2.57/6 = 3/7

0.4283 = 0.4283

that checks as correct

Frank made cookies for his class. He gave away half of them in his first period class, but then his mom dropped off 12 more cookies. If he now has 32 cookies, how many did he start with?

Answers

Answer:

Work backwards to solve this problem.

If he ends with 32 cookies, then subtract 12. That gives 20 cookies. 20*2 is 40, so now he has 40 cookies.

|-3| = ? I will give brainliest whoever gets it right

Answers

It’s 3 because the absolute value of any number is always positive

Have a great day :)

Answer:

3

Step-by-step explanation:

the absolute value of |-3| is 3

TIMED! please help!!
Thank you :)

Answers

Whats the question their is no question

6.) Ryan works at Best Buy and earns $12.00 an hour. His salary is
increased to $13.50 an hour. What was the percent increase of his raise?
percent

Answers

Answer:

$1.50

Step-by-step explanation:

If you had $12.00 you should have to add a dollar and 50 cents.

It went up a total percent of 1.5%

Sketch the triangle in the coordinate plane whose vertices are (0, -2), (2, 3).
and (4,-2). Find its area.
A. 10 sq. units
B. 15 sq. units
C. 20 sq. units
D. 30 sg, units

Answers

B is the right thing 15 squints

can some one help me with this

Answers

Answer:

A

Step-by-step explanation:

Answer:

C- 30

Step-by-step explanation:

When rolling a die, theres a 1 in 6 chance you will roll any number. So take the total number of times they rolled it, 180, and divide it by 6.

what does 2 3/4 and 3 1/8 look like as a decimal?

Answers

Answer:for 2 3/4 as a decimal is 0.75 and for 3 1/8 its 3.125

318 is 3.125 as a decimal and 312.50% as a percentage.

Step-by-step explanation:Hope this helped u also may i plz have brainlist?

Pls help with the matching

Answers

12-y=9
3x-y=21
4y-10=2
1/4xy=6

which of the following best describes the differences between simple and compound interest?

a. simple interest is easier to calculate than compound interest

b. simple interest earns interest on the previous interest earned only

c. compound interest earns interest on the principal plus any previous interest earned

d. compound interest earns interest on the principal only

Answers

Answer:

simple interest is easier to calculate than compound interest

Step-by-step explanation:

what are the solutions if any to f(x)=g(x)
i’ll give branliest

Answers

Answer:

The solution of the equation f(x) = g(x) is the set of all x for which the graphs of f and g intersect.

Step-by-step explanation:

the question is on the screenshot :)

Answers

Answer:

15.23 cm²

Step-by-step explanation:

area = 37.8 cm²

145°/360° = 0.4028 portion of entire area

0.4028 x 37.8 cm² = 15.23 cm²

Describe the translation that maps ABCD onto A’B’C’D’

Answers

One is negative the other is positive, the shapes haven’t changed they are the same

What should i do she’s always ignoring me and when she talks to me it’s so dry the only time she seems interested in talking to me is on some days and mostly at night

Answers

Either she lowkey doesn’t wanna be your friend or she’s going through something mentally.

Someone help me with this question please.

Answers

Answer:

no

Step-by-step explanation:

sdfghgfdsadfghjgftdrsewdfghgfdsdfgdsfghj

-1/4 divided by -4/7

Answers

Answer:

7/16

Step-by-step explanation:

Write this division problem as:

 -1

-----

  4

======

  -4

 -----

   7

Recall that we can divide by a fraction by inverting the fraction and then multiplying instead.  The above expression becomes:

 -1        7           7

------ * ------ = ---------

  4       -4          16

Write an equation for the relationship shown in the table. Then use the equation to find the estimated number of of shrimp in a 5 pound bag.

Answers

The answer to you equation is 5x7

If a right triangle has sides 9 and 12, what is the length of the third longest side

Answers

Answer:

15 cm

Step-by-step explanation:

Using Pythagoras Theorem ([tex]a^{2}[/tex]+[tex]b^{2}[/tex]=[tex]c^{2}[/tex])

[tex]x^{2}[/tex] = [tex]9^{2}[/tex] + [tex]12^{2}[/tex]

[tex]x^{2}[/tex] = 81 + 144

[tex]x^{2}[/tex] = 225 = [tex]\sqrt225[/tex]

[tex]x[/tex] = 15 cm

A man bought a car for ¢5.5 million and sold it for ¢6.5 million. Find the percentage gain.​

Answers

Answer:

Around 18% increase

Step-by-step explanation:

Formula for percentage gain: final value-original value/original value

PG= 6,500,000-5,500,000/5,500,000

PG= 1,000,000/5,500,000

PG= 0.18181818

around 18%

A camp counselor needs 12 bags of candy that each weigh 1 1/2pounds. How many ounces of candy does the camp counselor need??

Answers

Answer:

288 ounces

Step-by-step explanation:

1lb=16 ounces plus 8 ounces (1/2lb)= 24 ounces

24 x 12 (bags) = 288

What value of x satisfies the equation below?
[tex]\frac{-2x - 6}{5} = 4[/tex]

Answers

Answer: -13

Step-by-step explanation:

1. Isolate x: move 5 to the otherside

=> -2x-6=4*5 => -2x-6=20

2. Move 6 to the otherside: -2x=20+6 => -2x=26

3. Divide both sides by -2

=> x=26/-2 => x=-13

Have a nice day! :D

Please help, thank
You

Answers

. The answer is 9.0
C=2(3.142)(5)
C=31.42

A=3.142(5^2)
A=78.53

Working alone it takes mark 7 hours to mop the whole house it takes sue 9 determine to the nearest hundredth of the hour how long it will take then to mop the house together

Answers

Answer:

3.9375 hours

Step-by-step explanation:

Working alone it takes mark 7 hours to mop the whole house it takes sue 9 determine to the nearest hundredth of the hour how long it will take then to mop the house together

This is calculated as

1/Time it would take them to work together = 1/ Number of hours Mark mopped + 1/ Number of hours Sue mopped

= 1/T = 1/7 + 1/9

Lowest common denominator = 63

1/T = 9 + 7/63

1/T = 16/63

T = 63/16

T = 3.9375 hours

A coach is ordering shirts for a team.

• The coach pays a one-time fee of $24.
• The coach also pays $8 for each shirt ordered.

Which function can be used to find c, the total amount the coach pays in dollars when k shirts are ordered?

Answers

Answer:

c(k) = 8k + 24

Step-by-step explanation:

Filler sentence...

help i forgot how to do this

Answers

I think it’s Y is 5 and x is 4/1

What value of c makes the equation true?
15+c-1 = 23
А
7
B
37
C) 14
D
9

Answers

The answer to this is C
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