If ax2 + bx + c = 0, then x= ? (Hint: Quadratic Formula)

Answers

Answer 1

Answer:

x = ± [tex]\sqrt{\frac{b^{2} -4ac}{2a}[/tex]

It didn't insert but just look up the quadratic formula.  

x = ± root [(b²-4ac]/2a]


Related Questions

y+4=x
2y+2x=8

PLEASE ANSWER QUICK I HAVE A QUIZ DUE PLS ITS 15 POINTS​

Answers

Answer:

hope it helps...thnk u...and best of luck

Which number sentence is TRUE?

A. 3 ÷ 1 < 0 ÷ 3
B. 0 ÷ 3 > 3 ÷ 3
C. 3 ÷ 1 > 3 ÷ 3
D. 3 ÷ 3 < 4 ÷ 4

Answers

Answer:

i think it c but i don't know if im right

Answer:

Step-by-step explanation:

C is the answer

3/8,3/6,3/10 order from least to greatest

Answers

Step-by-step explanation:

The least to greatest would be 3/10, then 3/8, then 3/6

I need help on this question can some help

Answers

Answer:There’s a that you can download with a ton of edginuity answers if you type down edginuity answers and hit the pdf by reservamesa and you can find some.

Step-by-step explanation:

1-sin^2 theta/cot^2 theta
Simplify

Answers

Answer:

sin²θ

Step-by-step explanation:

Using the trigonometric identities

sin²x + cos²x = 1 ⇒ cos²x = 1 - sin²x

cotx = [tex]\frac{cosx}{sinx}[/tex]

Given

[tex]\frac{1-sin^20}{cot^20}[/tex]

= [tex]\frac{cos^20}{\frac{cos^20}{sin^20} }[/tex]

= cos²θ × [tex]\frac{sin^20}{cos^20}[/tex] ( cancel the cos²θ )

= sin²θ

Which expression is equivalent to (7 + 2i)(-3 - 4i)?
A 13+34i
B -13 - 34i
C -29 - 34i
D 29 + 34i

Answers

B -13 -34i

(7 + 2i)(-3 - 4i)
Take the 7 then times it buy the second bracket 7x(-3-4i) then take 2i from the first bracket and times it with the second bracket 2ix (-3-4i)

Then keep simplifying

PLES ANSWER QUICK IT URGENT

Answers

Answer:

Answer is 6.

Step-by-step explanation:

1--1/2 ÷ 1/4 = 6

Stephanie gets on her bike and rides for 3 hours. She rides at an average speed of 12.5 km per
hour.
- What distance did Stephanie travel?

Answers

Stephanie rode the bike with an speed of 37.5 km. If she ride the bude and the average speed for her is 12.5 km per hour, multiply 12.5 with how much hour to get the answer. 12.5x3=37.5. This means that Stephanime rode her bike and got a speed of 37.5 km.

Aaron bought a model airplane. The

model used a scale of 1/4 inch = 50 feet.
If Aaron's model airplane is 18 inches
long, how long is a real airplane?

Answers

Answer:

4.5 Ft

Step-by-step explanation:

1/4(18)= 4.5 Ft

0.25(18)=4.5Ft

What is wrong with the equation? What would be the answer? Plz help, i need to answer the problem soon

Answers

Step 2 is wrong bc you would multiply 9&3 then get 27 and then add 11 to get the final answer of 38
B.) In Step 2, the associative property cannot regroup addition and multiplication.

Help ASAP don't spam please, its about exponents

Answers

Answer:

i think A

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

[tex] \frac{64 \times {5}^{ \sqrt{25} } \times {17}^{ \sqrt{27} \times {17}^{ - \sqrt{12} } } }{2 \times {5}^{5} \times 16 \times {17}^{ \sqrt{3} } } \\ \\ = \frac{64 \times {5}^{ 5 } \times {17}^{ 3\sqrt{3} \times {17}^{ - 2 \sqrt{3} } } }{32 \times {5}^{5} \times {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {5}^{ 5 } \times {17}^{ 3\sqrt{3} \times {17}^{ - 2 \sqrt{3} } } }{{5}^{5} \times {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {17}^{ 3\sqrt{3} - 2 \sqrt{3} } }{ {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {17}^{ \sqrt{3}} }{ {17}^{ \sqrt{3} } } \\ \\ = 2[/tex]

Write the ordered pairs of the plotted points. a. b. C. d ?!?!?!?​

Answers

Answer:

A = (6,0)

B = (5,8)

C = (9,8)

D = (2,4)

Of the 16 students in Mrs. Miller's class, 10 are girls and 6 are boys. Write a ratio
that represents the number of girls to the total number of students in the class.

Answers

Answer:

10/6 or 5/3

Step-by-step explanation:

f(x) = -3x + 5 find f(4)

Answers

Answer:

Step-by-step explanation:

f(4)=-3(4)+5 = -12+5=-7

A baby narwhal is born at 1 meter in length and grows / meter in length each year. Write an
equation that fits the scenario.

Answers

Answer:

what subject is this for

Step-by-step explanation:

Stacy is doing a science project on narwhals. She needs to document the growth of narwhals over a period of time. If narwhals are born at 1 meter in length and grow 1 meter in length per year, how long will a narwhale be in 20 years?

hope this helps :)

`x^{2}+15x\ +\ 56=0`

Answers

Answer:

x=-7, -8 i think sorry

Step-by-step explanation:

Please help due ASAP
Please show workings!!

Answers

Answer:

FC = 27, QC = 18

Step-by-step explanation:

The centroid Q is [tex]\frac{1}{3}[/tex] the way along CF , therefore, QF is half as long as CQ

Given FQ = 9, then

QC = 2 × 9 = 18

FC = FQ + QC = 9 + 18 = 27

Part 3: Decide whether each set of lengths are sides of a right triangle, answer YES or NO. Show work
to support your answer. MGSE8.6.6 (8 points each)
7.)
9m, 4m, 5m
8.) 5cm, 12cm, 14cm

Answers

Answer:

No

No

Step-by-step explanation:

In a right angled triangle :

The square of the length of the longest side is equal to the sum of the squares of the two remaining sides : - Pythagoras

That is :

a² = b² + c² (condition must be satisfied).

9m, 4m, 5m

9² = 4² + 5²

81 = 16 + 25

81 ≠ 41 (not right angled)

5cm, 12cm, 14cm

14² = 12² + 5²

196 = 144 + 25

196 ≠ 169 (not right angled)


The base angles of a trapezoid are two _____ angles of a trapezoid whose common side is the base.

Answers

Answer:

Consecutive

Step-by-step explanation:

Answer:

consecutive

Step-by-step explanation:

have a good day!

The ratio of boys to girls in the entire 6th grade is 3 to 2. Given this ratio, which two class compositions are possible?

Answers

Answer:

There's an infinite number of possible answers because there might be any multiplication of 3 for boys and any multiplication of 2 for girls. So, for example:

There might be 3 boys and 2 girls.

There might be 6 boys and 4 girls.

There might be 9 boys and 6 girls.

There might be 12 boys and 8 girls.

etc...

In each case the ratio stays the same - 3 : 2.

Of course there probably can't be more than a few dozens of people in one class, but theoretically we can raise the numbers up to infinite.

Step-by-step explanation:hope this help.

Lin has 13 mystery novels. Each month, she gets 2 more. Select all expressions that represent the total number of Lin's mystery novels after 3 months.

Answers

answer:

Lin should have about 19 novels in total when you add up all the amounts she gets after 3 months.


In AXYZ, the angle measures are in the ratio 2:4:6. What are the measures of the angles?

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given that the measures of the Angles of the triangle ΔXYZ are in the ratio 2:4:6.

As the angles are in the proportion 2:4:6. Thus, the measure of the angles will have the same scale factor x.

Also, the sum of the measure of angles in a triangle is 180°.

so

2x + 4x + 6x = 180

Add similar elements: 2x + 4x + 6x = 12x

12x = 180

Divide both sides by 12

12x/12 = 180/12

Simplify

x = 15

Therefore, the measure of the angles of a triangle will be:

2x = 2(15) = 30

4x = 4(15) = 60

6x = 6(15) = 90

Verification:

30 + 60 + 90 = 180

180 = 180

A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.
How tall is the palm tree

Show your work Please

Answers

Answer: The height of the palm tree is 21 feet.

Step-by-step explanation:

We can use a ratio to solve this:

Actual height to shadow for both objects. The fraction equivalents must be equal.

6/8 = x/28 . Cross multiply

6(28) = 8x

168 = 8x   Divide both sides by 8  (8's "cancel" on the right)

168/8 =8x/8

21 = x . This gives us the tree's height as 21 feet.

Another way to solve this is to use the ratios, but simplify the first fraction

6/8 = 3/4

Then multiply the length of the shadow by 3/4

3/4 × 28 = height

28÷4 = 7    7 × 3 = 21

21  feet= the height of the palm tree.

Find the square of 111 base two give ur answer in base two​

Answers

Answer: I'm not 100% sure what your asking but I believe the answer is 12321.

Step-by-step explanation:

Mrs trent spends £68 on her weekly food shop.

Answers

Answer:

a. 80%

b. £34

c. £340

Step-by-step explanation:

a. We are given that Mrs Trent spent 20% of her weekly wage on food. This means she would have 80% of her weekly wage left with her.

b. 10% of Mrs Trent weekly wage:

If 20% = £68

10% = (10*68)/20 = £34

c. Let x represent weekly wage of Mrs Trent

Given that she spends £68 of x (weekly wage) on food, which is 20% of x.

This means that, 20% of x = £68

Let's find her weekly wage, x:

[tex] \frac{20}{100} * x = 68 [/tex]

[tex] 0.2x = 68 [/tex]

Divide both sides by 0.2

x = 340

Her weekly wage is £340.

Answer:

a) 80%

b) £34

c) £340

Step-by-step explanation:

A -

100% - 20% = 80%

B -

68 = 20%

34 = 10%

c -

34 = 10%

340 = 100%

as you times both sides by 10

I hope this helps :)

what do parallel line prove

Answers

Answer:

the pairs of corresponding angles are congruent

Step-by-step explanation:

A graph titled position versus time has an horizontal axis time (seconds) and a vertical axis position (meters). A straight line passes from 0 seconds, 0 meters to 5 seconds, 20 meters.
Calculate the slope of the line on the graph using the formula:

m = m = v subscript 2 - v subscript 1 over x subscript 2 minus x subscript 1.

Answers

The Answer is 4 meters per second

Answer:

4

Step-by-step explanation:

You want to take the farthest coordinates ( 16/4 ), the closest coordinates to 0 ( 4/1 ), and then subtract to get 12m/3s, then divide 12m by 3s to get 4m/s.

Remember to solve for Slope is SUBTRACTING then dividing.

I hope this helps!!

Last summer, an ice cream shop sold a small ice cream for $1.25 and a large ice cream for $3.75. The ice cream shop decided to raise its prices this summer while keeping them proportional to last year's prices. Which of the following answer choices are possible prices for the ice cream this summer?

A.small ice cream: $2.50 , large ice cream: $5.00
B. small ice cream: $1.50, large ice cream: $4.50
C.small ice cream: $2.00, large ice cream: $4.25
D. small ice cream: $1.80, large ice cream: $7.20

Answers

Answer:C

Step-by-step explanation:

keeping proportional and thats the only answer where the difference is still $2.25

Answer:

Correct choice: B

Step-by-step explanation:

Proportions

The ice cream shop sold small ice creams for $1.25 each and large ice creams for $3.75 each.

This summer the prices will be raised at the same proportion. If x is the new price for small ice creams and y is the new price for large ice creams, then it should be satisfied:

[tex]\frac{1.25}{x}=\frac{3.75}{y}[/tex]

Let's test each option:

A.

[tex]\frac{1.25}{2.50}=0.5[/tex]

[tex]\frac{3.75}{5.00}=0.75[/tex]

B.

[tex]\frac{1.25}{1.50}=0.83[/tex]

[tex]\frac{3.75}{4.50}=0.83[/tex]

C.

[tex]\frac{1.25}{2.00}=0.625[/tex]

[tex]\frac{3.75}{4.25}=0.88[/tex]

D.

[tex]\frac{1.25}{1.80}=0.694[/tex]

[tex]\frac{3.75}{7.20}=0.52[/tex]

Correct choice: B

What does this equal?
8m-6-2m-31

Answers

8m-6–2m-31
(Group them by similar terms)

(8m-2m) (-31-6)
SOLVE:


Answer:
6m-37

I think your questions is not clear

Can someone answer this please. I need to answer this before class ends and it ends at 8:40

Answers

4i because everything I. Square root turns to positive
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