help please i got absolutely no clue how to solve this

Help Please I Got Absolutely No Clue How To Solve This

Answers

Answer 1

Answer:

A)

Step-by-step explanation:

To complete the square, we need to find such p and q that:

r^2 - 12r - 27 = (r - p)^2 - q =  r^2 - 2pr + h^2 - q

Because we know that 2pr = 12r, then p = 6

(r - p)^2 - q = (r - 6)^2 - q = r^2 - 12r + 36 - q

We know that 36 - q = -27, so q = 36+27 = 63

Now we can solve for = 0

(r - 6)^2 - 63 = 0

(r - 6)^2 = 63

r - 6 = √63   or     r - 6 = -√63

r = 6 + √63 = 6 + 3√7      or    r = 6 - √63 = 6 - 3√7


Related Questions

Use division to find all the whole number ratios equivalent to 56:24.​

Answers

Answer:

check step by step for it (:

Step-by-step explanation:

go in order

1 is 56:24

2 is 28:12

3 doesn't work for 56, the division doesn't result in a whole number

4 is 14:6

5, N/A

6 is N/A for 56

7 is 8 for 56 and NA for 24

8 is 7:3

boom (:

PLEASE HELP ME! Truthful answer only please

Answers

Answer:

D. [tex]-2a^2+2a+4[/tex]

Step-by-step explanation:

[tex]d_1=a^2+2a+3\\d_2=2a^2+a+1\\[/tex]

First, substitute both of these equations into [tex]2(d_1-d_2)[/tex]

[tex]2((a^2+2a+3)-(2a^2+a+1))[/tex]

Now, you just simplify. I don't have much to say about it, but here's the steps:

[tex]2(a^2+2a+3-2a^2-a-1)\\2(a^2-2a^2+2a-a+3-1)\\2(-a^2+a+2)\\-2a^2+2a+4[/tex]

Your answer is D. [tex]-2a^2+2a+4[/tex]


1. Is the relation on the right a function? Explain.
2. Can you state the domain and range of a relation that is not a function? If yes, what is the
domain and range of the relation on the right?

Answers

Answer:

Step-by-step explanation:

A relation is a function if every input has exactly one output. The domain and range of a relation that is not a function can have multiple outputs for a single input.

1. A relation is considered a function if every input has exactly one output. To determine if the relation on the right is a function, we can examine the x-values and see if any are repeated. If there are no repeated x-values, then it is a function. If there are repeated x-values, then it is not a function.

2. A relation that is not a function can have multiple outputs for a single input. The domain of a relation refers to the set of all possible input values, while the range refers to the set of all possible output values. Without the relation provided, it is not possible to state the specific domain and range.

Learn more about the topic of Functions here:

https://brainly.com/question/21145944

#SPJ3

For the functions f(x)=−7x2−x and g(x)=9x2−4x, find (f−g)(x) and (f−g)(1).

Answers

Step-by-step explanation:

f(x) = -7x² - x

g(x) = 9x² - 4x

(f - g)(x) = (-7x² - x) - (9x² - 4x)

(f - g)(x) = (-7x² - 9x²) + (-x + 4x)

(f - g)(x) = -16x² + 3x

(f - g)(1) = -16(1)² + 3(1)

(f - g)(1) = -16.1 + 3

(f - g)(1) = -16 + 3

(f - g)(1) = -13

How can we get Equation B from Equation A?

A. 2x−1=5x
b. −1=3x
Question 2 options:

Rewrite one side (or both) using the distributive property


Add/subtract a quantity to/from only one side


Add/subtract the same quantity to/from both sides


Rewrite one side (or both) by combining like terms

Answers

Answer:

-1 = 5x - 2x

Step-by-step explanation:

When 2x will go to the other side of the equal sign, it will become negative.

5x - 2x will become 3x

From here you will get Equation B

2x - 1 = 5x

-1 = 5x - 2x

-1 = 3x

y = 4x + 3 in standard form (NO LINKS,will give brainliest)

Answers

Answer:

4x−y=−3

Step-by-step explanation:

The standard form of a linear equation is Ax+By=C

Rewrite the equation with the sides flipped.

4x+3=y

Move all terms containing variables to the left side of the equation.

Subtract y from both sides of the equation.

4x+3−y=0

Move 3

4x−y+3=0

Subtract 3 from both sides of the equation.

4x−y=−3

Answer:

4x - y = -3

Step-by-step explanation:

Rearrange the equation.

y = 4x + 3

0 = 4x +3 - y

-3 = 4x - y

Solve by graphing
PLEASE HELP

Answers

Answer:

DX wonder if if you want to come over and watch the way to the way to the way to the way to the way to the way to work I you you you can send me the way to the way to the way to the way to the way to the way home now I will be more than enough for me for all of us her

Four more than three times a number is
greater than twenty-two.

Answers

Answer:

x > 6

Step-by-step explanation:

The first thing you need to know is that when you solve inequalities, imagine the greater than or less than sign as an equal sign as you solve. Use the same rules as you would use in algebra: do the same thing to one side to the other side. Now the equation is writen as 4 + 3x > 22. The first step is to subtract 4 to take it from that side of the equation and isolate the x. Remember that if you divide or multiply by a negative number, you must flip the inequality sign. Now you subract 4 from both sides as we were saying, the equation is now 3x > 18. The last step is to divide 3 from both sides to isolate the variable. The 3 next to the x represents multiplication. The final answer is x > 6

Hope this helped :)

tha distance y that cam swims in x minutes is a proportional relationship. the data from his most recent swims are shown in the table. Brittney calculates that she swims 51.3 meters per minutes. Who is the lower swimmers?


Answers

Step-by-step explanation:

Do not know sorry

........ M

If 8 boys went to the washroom, there would be as many boys as girls in the room. 3 If 8 girls went to the washroom, there would be 2 times as many boys as girls. Howmany boys and how many girls are there in the class?​

Answers

Answer:

24 kids in the classroom.

2) Compare the sets of numbers below.
Place a symbol (<, >, =) on the line between the numbers
A.
5.72
4.75
B.
36.2
36.12
C.
9.18
9.19
D.
7.6
7.60
E
0.8243
0.82
F.
0.43
0.425
125.6
G.
120.8
7.219
H.
7.229
I.
0.991
0.99100
J.
0.2
0.02
K.
62.99
3ها
L.
01.4
110.4
M.
0.031
0.310

PLEASE HELP ASAP

Answers

Solution:

A. 5.72 > 4.75

B. 36.2 > 36.12

C. 9.18 < 9.19

D. 7.6 = 7.60

E. 0.8243 > 0.82

F. 0.43 > 0.425

G. 125.6 > 120.8

H. 7.219 < 7.229

I. 0.991 = 0.99100

J. 0.2 > 0.02

L. 01.4 < 110.4

M. 0.031 = 0.310

I couldn't solve for K because the options are not given properly.

Do comment if you have any query.

Hope it helps.

In Isaac's closet, the ratio of short-sleeve to long-sleeve shirts is 5:2.

If Isaac has 30 short-sleeved shirts, how many long-sleeved shirts does he have?

Answers

Answer:

12 long sleeved

Step-by-step explanation:

30 / 5 = 6

6 x 2 = 12

Answer:

12

Step-by-step explanation:

The 5 part of the ratio relates to 30 short- sleeved shirts.

Divide by 5 to find the value of 1 part of the ratio

30 ÷ 5 = 6 ← value of 1 part , then

2 parts = 2 × 6 = 12 ← long- sleeved shirts

-2.08 - (-4.49) equals?

Answers

Answer:

2.41

Step-by-step explanation:

-2.08-(4.49)=

-2.08+4.49=2.41

Answer:

2.41

Step-by-step explanation:

The answer is 2.14 because the numbers in the problem are both negative making the solution/ answer positive 2.41! :D

Given A = {x ∈ ℤ : 4|x} and B = {x ∈ ℤ : 2|x}. Prove A ⊆ B.

Answers

Let a ∈ A. Then a is some integer that is divisible by 4, so we can write a = 4k for some integer k.

We can simultaneously rewrite a as a = 2•2k, so 2 clearly divides a, which means a ∈ B as well.

Therefore A ⊆ B.

What is the equation of a line, in point -slope form, that passes through (-8, 1) and has a slope of 5/6? -3/4

Answers

9514 1404 393

Answer:

  y -1 = 5/6(x +8)

Step-by-step explanation:

The point-slope equation of a line is ...

  y -k = m(x -h) . . . . . line through point (h, k) with slope m

For point (-8, 1) and slope 5/6, the equation is ...

  y -1 = 5/6(x +8)

_____

Additional comment

If you want a line with slope -3/4 through the same point, change 5/6 to -3/4:

  y -1 = -3/4(x +8)

what number is 25% of $115

Answers

Answer=28.75
I just finished the test. Hope it’s not to late for the answer.

What is the measure of angle x

Answers

Answer:

Correct answer is D 146°

Step-by-step explanation:

x= 90° +56° ( Exterior angle of a triangle is equal to the two opposite interior angles)

x= 146°

please help me, i will mark the brainliest pls!

Answers

Answer:

YES

Step-by-step explanation:

The blanks would be (5 x 6) - (5 x 3) hope this helps :)

₹7.50 into paise please help me​

Answers

Answer:

750 paise

Step-by-step explanation:

just remove the decimal!

help me please!!!!!!!!!!

Answers

-7.21 < - 7.18 < -7.09 < 6.99 < 7.15

Step-by-step explanation:

-7.21

-7.18

-7.09

6.99

7.15

Jason budgets 28% of his $1,500 income each month for food. How much money does he have to spend for everything else? O $53.57 O $420,00 O $1,080.00 O $1,446.43​

Answers

Answer:

$1,080.00

Step-by-step explanation:

$1,500 - 28% = $1,080.00

Help help math sucks please honest answer

Answers

the parallelograms are congruent
Yes they are, 5cm is in the same side from the other shape so as 2cm

Find the GCF of 9a^4b^2 and 21a^2b^3

Answers

Answer:

son varios carnal

Step-by-step explanation:

respuestas y pregunstas es que la explicacion tiene logica como mi rap asta rimo carnal para que guache loko nomas para que vea el flow que cargo loko asi nomas mijo ya vio

Plz help I need help

Answers

Answer:

x=31.5

Step-by-step explanation:

How many 3/4 can fit into 3?

Answers

Answer:

3

Step-by-step explanation:

okay i have between 20min to comlpter this please help

Answers

Answer:The first goes to the first, the second to the third, the third to the fourth and the fourth to the second.

Step-by-step explanation:

4 friends went golfing this morning. On a particular hole, Aisha is 3 under par, Bob is 4 above par, Claire is at par, and Dorian is 1 under par. What are the scores from least to greatest?

PLZ HELP WITH THIS

Answers

Answer:

Step-by-step explanation:

4

4

3

1

Each day David drives to work in the moming, returns home for lunch, drives back to work, and then goes to a gym to exercise before he returns home for the evening. Draw a reasonable graph to show the distance David is from his home for a two-day period​

Answers

Answer:

9 Km a su casa

Step-by-step explanation:

0j

Suppose $50,000 is divided into two bank accounts. one account pays 4% simple interest per year and the other pays 6.4%. after five years there is a total of $12,000 in interest between the two accounts. how much was invested into the bank account that pays 6.4% simple interest (rounded to the nearest cent)?

Answers

Answer:

$33333.33

Step-by-step explanation:

Suppose x invested into the bank account that pays 4% simple Interest

5x4%x+5x6.4%(50000)= 12000 { The interest due is equal to interest}

4x+6.4x50000-6.4x=240000

2.4x=80000

x=33333.33

Suppose that sin(t) = − 3/ 5 and is in quadrant 4. Find the following:
(a) cos(t) =

(b) sin(2t) =

(c) cos(2t) =

(d) tan(2t) =

(e) The quadrant of the angle 2t.

(f) The quadrant of the angle 1/ 2 t.

(g) sin 1 /2 t =

(h) cos 1 2/ t

Answers

Answer:

see below

Step-by-step explanation:

As sin(t) = -3 / 5 and in quadrant 4

so cos is positive

a) sin^2(t) + cos^2(t) = 1

(-3/5)^2 + cos^2(t) = 1

cos^2(t) = 1 - (9/25)

cos^2(t) = (25 - 9) / 25 = 16/25

cos(t) = +4/5

b) sin(2t) = 2 sin(t)cos(t)

= 2 * (-3/5) * (4/5)

= -24/25

c) cos(2t) = cos^(t) - sin^2(t)

= (4/5)^2 - (-3/5)^2

= 16/25 - 9 / 25

= 7 / 25

d) tan(2t) = sin(2t) / cos(2t)

= (-24/25) / (7/25)

= -24/7

e) as sin(2t) is negative and cos(2t) is positive

2t is in Quadrant 4

I am not sure for below three

f) cos(t) = cos^2(1/2 t) - sin^2(1/2 t) = 4/5

  cos^2(1/2 t) + sin^2(1/2 t) = 1

by adding and solving

1 + 4/5 = 2 * cos^2(1/2 t)

9/10 = cos^2(1/2 t)

cos(1/2 t) = +- 3/[tex]\sqrt{10}[/tex]

and sin(t) = 2 * sin(1/2 t) * cos(1/2 t) = -3/5

2 * sin(1/2 t) * 3/sqrt{10} = -3/5

sin(1/2 t) = +- 1/sqrt{10}

means here sin and cos for 1/2 t should be opposite signs

so it is either 2nd or 4th quadrant

g) sin( 1/2 t) = +-1/sqrt{10}

h) cos(1/2 t) = +- 3/sqrt{10}

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