Complete the square to solve 3x^2+12x=9
A. x=-2±√13
B. x=3±√6
C. x=2±√7
D. x=-2±√7

Answers

Answer 1
The answer should be Maybe D
Answer 2

Answer:

I think its D also

Step-by-step explanation:


Related Questions

Will give brainiliest, 15 points!! Please help, due in 10 minutes.

Write an equation for one of the tables that represents a linear relationship. (y=mx+b)

Answers

Table 3
y=Mx+b
y=-2x+10

For every two dollars that Taylor saves in her account, her brother saves five dollars in his account. If Taylor has 40 dollars in her account, how much money does her brother have in his account?

Answers

Answer:

100 dollars

Step-by-step explanation:

Taylor saved two dollars each time and she has 40 which is 20 x 2=40 so do the same for her brother 5 x 20= 100.

we're you able to plot the given numbers?​

Answers

Step-by-step explanation:

calculate the x-intercept by making y=o and substitute the values of x into the equation to get y-values

A store is offering a 20% discount on all items. Write an equation for the relationship between the discount price of an item, d , and it's original price, p.

Answers

Answer:

80%p=d

Step-by-step explanation:

20% discount is 80% of original.

An equation for the relationship between the discount price of an item, d, and it's original price, p is p = 0.8d.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

A store is offering a 20% discount on all items.

Let the discount price of an item, d, and it's original price, p.

The original price = (100 - 20%)discount price

p = 80%d

p = 0.8d

Therefore, p = 0.8d is the required equation.

To learn more about the percentage;

brainly.com/question/24159063

#SPJ5

Jana wrote the expression 5n+3 as part of a problem she was solving. She wanted Sally to read it back to her verbally so she could check her work. Which verbal description best represents the expression 5n+3 (PLEASE ANSWER AS QUICK AS POSSIBLE!!)

Answers

Answer:

Step-by-step explanation:

Step-by-step explanation:

three more than five times some number n

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HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer: The correct answer is A

Step-by-step explanation:

At 1, there is a start of $45

Then for 2 it adds $25

Then 3 adds $25 dollars.

Because 1 started at $45, that means it is a rate of 25 dollars per hour, but a starting cost of 20+25= $45.

Hope this helped!

Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 555 salamanders, 333 crayfish, and 121212 minnows in her lab.
What is \text{P(salamander})P(salamander)start text, P, left parenthesis, s, a, l, a, m, a, n, d, e, r, end text, right parenthesis?
If necessary, round your answer to 222 decimal places.

Answers

Answer:

1/4

Step-by-step explanation:

Given

amount of  salamanders, = 5

amount of crayfish = 3

amount of minnows = 12

Total fish = Total outcome = 5+3+12

Total outcome = 20

Since we are looking for the probability of selecting  salamanders, our expected outcome will be 5.

Probability = expected outcome/total outcome

Pr( salamanders,) = 5/20

Pr( salamanders) = 1/4

Hence the probability of selecting  salamanders, is 1/4

Hope this helps and best of luck!!

Answer:

0.25

Step-by-step explanation:

I took the test on khan.

You are asked to draw a triangle using three of the following angles: 0°, 30°, 45°,55°, 60°, 80°, 90°, 105º. Which triangle cannot
exist?

Answers

The the triangle to me that couldn’t exist would be 0

Answer:

30°,45° and 55° cant exist

Step-by-step explanation:

30 + 45 + 55= 130

a triangle must have 180°

Subtract 3x + 5 from 7- 2x

Answers

(3x+5) - (7-2x)
=5x + -2
5x= 2



X=0.4




And if that’s not the answer you’re looking for then it would be X +12

The length of the legs of a right triangle are 9 feet and 12 feet. What is the length, in feet, of the third side of the triangle?
A 6 feet
B 10 feet
C 15 feet
D 40 feet

Answers

Answer:

c

Step-by-step explanation:

square them both and add them then square root that answer

Tomas is finding the coordinates of point A. He knows that point A has an x-coordinate of 8. He starts to compute the value of the y-coordinate. Complete Tomas’s work to answer the question.



Which is the coordinate of point A?

(8, –6)
(–6, 8)
(6, –8)
(–8, –6)
Mark this and return

Answers

I believe the answer would be (8, -6) considering this is the only option with an x-coordinate of 8. Hope this helped.

Find the standard deviation. {0, 4, 7, 1, 3, 5, 2}

Answers

Answer:

2.23

Step-by-step explanation:

Give the sum in simplest form: 4/10 + 1/10 = _____

Answers

Answer:

1/2

Step-by-step explanation:

bc 4/10 + 1/10= 5/10 divided by 2 =1/2

Answer:

1/2 or 5/10

Step-by-step explanation:

When you are adding fractions you only add the numerator (the top number) 4+1=5. So you get 5/10. But then you have to divide to get the simplest form. You can divide 10 and 5 by 5. So then after you are done dividing you end up with 1/2!

(Hope this helps)

Yours Truely, TheAnimeCatUwU

Please help me with these!

Answers

Answer:

Step-by-step explanation:

A1. C = 104°, b = 16, c = 25

Law of Sines: B = arcsin[b·sinC/c} ≅ 38.4°

A = 180-C-B = 37.6°

Law of Sines: a = c·sinA/sinC ≅ 15.7

A2. B = 56°, b = 17, c = 14

Law of Sines: C = arcsin[c·sinB/b] ≅43.1°

A = 180-B-C = 80.9°

Law of Sines: a = b·sinA/sinB ≅ 20.2

B1.  B = 116°, a = 11, c = 15

Law of Cosines: b = √(a² + c² - 2ac·cosB) = 22.2

A = arccos{(b²+c²-a²)/(2bc) ≅26.5°

C = 180-A-B = 37.5°

B2. a=18, b=29, c=30

Law of Cosines: A = arccos{(b²+c²-a²)/(2bc) ≅ 35.5°

Law of Cosines: B = arccos[(a²+c²-b²)/(2ac) = 69.2°

C = 180-A-B = 75.3°

HELLLLPPPP MEEEEEE PLEASEEE

Answers

Answer:

its 180 sjosjdoe hi irjsodkc

$70 shoes, with 6% sales tax

Answers

Answer: $4.20

Step-by-step explanation:

Answer:

Shoes would cost $74.2 with tax

Step-by-step explanation:

70 * 0.06 = 4.2

70+ 4.2 = 74.2

Whilit is the slope of the line that contains the points (-2, 2) and (3, 4)? I A. - 5 2 2 B. B. - 5 C. LAIN D. In​

Answers

Answer:

2/5

Step-by-step explanation:

slope is change in y/change in x

4-2 / 3+2 = 2/5

Answer:

m = 2/5

Step-by-step explanation:

(-2, 2) and (3, 4)

Slope:

m=(y2-y1)/(x2-x1)

m=(4 - 2)/(3 + 2)

m = 2/5

The Red Cross is distributing water to
disaster victims. They have 500 gallons of
water and they give 2 gallons to each
person in need. Write an equation
describing the amount of water, w, the Red
Cross has left and the number of people, p,
they have helped

Write the equation, then state how many victims could receive water until the red cross has only half of the original water that they started with left ?

Please help me asap it’s due in 30 minutes!

Answers

Step-by-step explanation:

500=2x

x= 250....ppl can get water

250==2x

125....ppl can get water now

Marissa wrote her bike to the park and back up halfway to the park she stopped at the library she was one 310 miles from the library how many miles and miles to ride her bike and all now

Answers

Answer:

5 1/5 miles

Step-by-step explanation:

Given that :

Library is located halfway between park and home ;

Distance between library and park = 1 3/10 miles

Hence, total distance between park and home :

1 3/10 + 1 3/10 = 2 6/10

The distance driven :

Home to park ; park back home

2 6/10 + 2 6/10 = 4 12/10

4 + 12/10 = 4 + 1 2/10

= 5 2/10

= 5 1/5 miles

Help? you don’t need to show work

Answers

Answer:

186/300

0.62

62%

more likely to get the tile z from the second bag

Step-by-step explanation:

Omg help me ASAP I’m stuck and people keep giving me different answers

Answers

Answer:

Scalene acute

Step-by-step explanation:

All angles measures are less than 90 so it would be acute. No sides are equal so it would be scalene

ABCD is a trapezoid. The coordinates are A(-4, -1), B(0,3), C(8,3) and D(8, -1). Find the length of the midsegment of the trapezoid.

Answers

Answer:

Step-by-step explanation:

Opppppssssssss

xjjdjdicjckxxjxixnjxnxnxnxnf​

Answers

Answer:

66

Step-by-step explanation:

Round 8,651 to the nearest thousand

Answers

Nearest Thousand is: 8,651, so rounding to it would be 9,000.

Answer:

9,000 is the nearest thousand

What is the side lengths in inches of a cube with volume of 1 cubic inch

Answers

Answer:

1 Inch

(Sorry for this, there wasn't enough letters in my answer)

Eric is designing a logo for a company. The logo consists of two identical parallelograms joined at their longest sides. One of the parallelograms has a length of 2.5 centimeters and a height of 1.25 centimeters. What is the area of the logo?

Answers

Answer:

[tex]A=3.125\ cm^2[/tex]

Step-by-step explanation:

Given that,

The base of the parallelogram, b = 2.5 cm

Height of the parallelogram, h = 1.25 cm

We need to find the area of the logo. The formula for the area of the parallelogram is given by :

[tex]A=b\times h\\\\A=2.5\times 1.25\\A=3.125\ cm^2[/tex]

So, the area of the logo is [tex]3.125\ cm^2[/tex].

Can someone pls help me with this?

Answers

Answer:

C.

Step-by-step explanation:

Look at the diagonal.  

Answer:

The answer is A

Step-by-step explanation:

The line should have a curve because the sets of points are nonlinear

convert the fraction into a decimal
12/25​

Answers

Answer:

it would be 0.48

Step-by-step explanation:

yeah you divide

[tex]{ \large{ \sf{ \dfrac{12}{25} = 0.48 }}}[/tex]

evaluate the problem

Answers

Answer:

-2

Step-by-step explanation:

[tex]Log_{2}\frac{1}{4}[/tex] = -2

I hope this helps!

Answer:

[tex]x=-2[/tex]

Step-by-step explanation:

Isolate x by taking the log of each side:

[tex]\frac{1}{4}=2^x\\log_2(\frac{1}{4})=log_2(2^x)\\x=-2[/tex]

This works because:

[tex]2^{-2} =\frac{1}{2^{2}}=\frac{1}{4}[/tex]

If this helped, a brainliest would be greatly appreciated!

Simplify the following expressions:

(25)6

Answers

1073741824 that is the answer

Answer:

Step-by-step explanation:

2 with and exponent of 5 is 10 then you have to multiply that answer by 6 which will give you the answer of 60

So your final answer is 60

hope this helped :)

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