Mathematics High School

The coefficients of a quadratic equation are all integers.

The discriminant is 0. Which statement best describes its roots?

A) Two irrational roots
B) No real roots
C) One rational root
D) Two rational roots

plz help im having a really tuff time right now

Answers

Answer 1

Answer:

C: One rational root

Step-by-step explanation:

disc. > 0 means two real roots

disc. = 0 means one repeated root

disc. < 0 means two irrational roots

Related Questions

Brainly plssss someone!!!!!!

Answers

Answer:

15

Step-by-step explanation:

Answer:

C. 15

Step-by-step explanation:

As per intersecting chords theorem, we have following:

HA*HC = HB*HD3x*8 = 12*1024x = 120x = 120/24x = 5HA = 3x = 3*5 = 15

Correct choice is C

a bag contains 5 blue, 8 red, and 7 green marbles. a marble is selected at random. Write each answer as a fraction, percent, and a decimal.

Answers

Answer:

1/4 and 0.25 and 25% chance for blue, 2/5 and 0.4 and 40% chance for red, and 7/20 and 0.35 and 35% for green.

Step-by-step explanation:

add all the marbles (20) and that’s the total. then however many marbles in the color that’s the top number in the fraction. divide the top number by the bottom number to get the decimal and move the decimal 2 spaces to the right to get the percent.

A cone-shaped water tank is completely filled. The tank has a depth of 12 feet and a radius of 29 feet. A pump removes water from the tank at a rate of 1000 cubic feet per hour.

What is the volume of water in the tank before the water is pumped out?
Use 3.14 to approximate π and express your final answer to the nearest hundredth.
How many hours will it take to drain all the water?

Answers

Answer:

Volume = 10562.96  cu ft

10.56 hr. to drain all the water

Step-by-step explanation:

V = 1/3Bh        B = area of the base           h = height

The base is a circle, so [tex]B = \pi r^{2}[/tex]

[tex]V = \frac{1}{3} (3.14) (29^{2})(12)[/tex] = 10562.96  cu ft

10562.96/1000  = 10.56 hr.

plssssssssssss help I need to pass​

Answers

Answer:

x = 24

Step-by-step explanation:

We can tell by two ways: We already know the value of one of the angles; 66 degrees. We can tell the value of the other one, because it has the right angle symbol, meaning it's 90 degrees. Remember that every triangle's degrees always add up to 180. We can find x by adding 90 and 66 together, which results in 156. Subtract 156 from 180 and you get 24. Therefore, the value of x is 24 degrees.

Answer:

24 degrees

Step-by-step explanation:

The total of a triangle is 180 degrees and a right angle is 90 degrees ( you can tell it's a right angle if it forms the shape of a straight capital "L" or if it has the square in that corner).

So to simplify this , add 90 and 66 which equals 156.

Now we subtract 156 from 180 ---->    180 - 156 = 24

So 24 degrees is your answer.

solve with substitution 3x + y =19 -6x - 5 = y​

Answers

Answer:

x=-8

Step-by-step explanation:

3x + y =19

-6x - 5 = y

3x + y =19

-6x -y=5

-3x=24

x=-8

y= -6x -5

y=48-5=43

can i have brainliest please

The local Beep Boop store sells widgets and gizmos. If you subtract the cost of 3 gizmos from 7 widgets you would spend 28 Boop Bucks. Also, you would spend 16 Boop Bucks if you bought 4 widgets and 2 gizmos. Which of the two items, widgets or gizmos, does the Beep Boop store give away for free? How do you know? How much does the other item cost?

Answers

Answer:

$7

Step-by-step explanation:

5. Arianna purchased a house for $156,000 and obtained a mortgage for $147,700. She purchased 2 discount points and 3 origination points. What is the cost for each? (3 points)
discount: $2,954; origination: $4,431
discount: $3,120; origination: $4,680
discount: $4,431, origination: $2,954
discount: $4,680; origination: $3,120

Answers

D i think is the answer

Step-by-step explanation:

who has the problem gdjjsjegggshdgghdvdvvrbdhjlalalsleir

Guys im a not the smartest fifth grader and i need help pls help me my question is 5/6 divided by 1/3

Answers

the answer should be 5/2

Answer:

When dividing fractions, you keep the first fraction the same, change the problem into a multiplication problem, and flip the second fraction.

5/6 x 3/1 = 15/6 = 2 3/6

Step-by-step explanation:

What the answer someone help me!!!

Answers

Step-by-step explanation:

the answer to your question is

16/9

Answer:

16/9

Step-by-step explanation:

remove the bracket

Please help me solve this

Answers

n=8
x= -19

Let me know if you need to see how to solve it

Find the value of x, image attached below

Answers

Answer:

x = 10

Step-by-step explanation:

Sum of angles in a triangle is 180° , so

35° + (5x + 7)° + (9x - 2)° = 180°

The value of x can now be found by solving the linear equation.

5x + 9x + 35 + 7 - 2 = 180

14x + 40 = 180

14x = 180 - 40

14x = 140

x = 140/14

x = 10

Determine the area of the circle if the diameter is 4 inches.

9.78 square inches

12.56 square inches

14.8 square inches

19.32 square inches​

Answers

12.57 square inches

choose equation that will be used to solve this problem
Hugo sold blank tattoos

Answers

Answer:

It looks like the equataion is 2x(hugo)-10+y=137

Step-by-step explanation:

Hugo sold twice as many as italia but fewer 10.

Combine the like terms
X + x + y + y - y + x -2 =

Answers

The answer is >>>> 3x + y - 2

What is 6.02 x 10−5 written in standard form?

Answers

i’m pretty sure it’s 55.2

1/4 divided bye 3/3 is what

Answers

Step-by-step explanation:

.25 or 1/4 hope this helps

Answer:

1/4

Step-by-step explanation:

Any expression divided by itself equals 1

1/4÷1

Any expression divided by 1 remains the same

1/4

the solution is 1/4

Carlos left the mall at the same time as
Gabriella. They traveled in opposite
directions. Gabriella traveled at a speed
of 50 mph. After two hours they were 180
mi. apart. How fast did Carlos travel?

Answers

Answer:

40 mph

Step-by-step explanation:

After the 2 hours Gab travelled 100 miles (50*2), subtract this from 180 to find how many miles Carlos travelled. Divide this number by 2 to figure out the mph

which inequality is graphed below?

Answers

d. the last answer choice

Fourteen pounds less than eight times the pounds of chocolate Jo got for her birthday is three more than four times the pounds of chocolate Jo got. How much chocolate did Jo get for her birthday?

Answers

Answer:

Total chocolates Jo bought for her birthday  = 4.25 pounds

Step-by-step explanation:

Given - Fourteen pounds less than eight times the pounds of chocolate Jo got for her birthday is three more than four times the pounds of chocolate Jo got.

To find - How much chocolate did Jo get for her birthday?

Proof -

Let Jo bought total chocolates = x pounds

Then,

8x - 14 = 4x + 3

⇒8x - 4x = 3 + 14

⇒4x = 17

⇒x = [tex]\frac{17}{4}[/tex] = 4.25

∴ we get

Total chocolates Jo bought for her birthday  = 4.25 pounds

Justification -

8(4.25) - 14 = 4(4.25) + 3

⇒34 - 14 = 17 + 3

⇒20 = 20

Satisfied.

Which is an example of a current asset? *

A prepaid insurance

B prepaid income

C accrued expense

D trade payables

Answers

Answer:

accrued expense is the answer okkkkkkkkkkkkkkkk

Solve please!!!!bbbbb

Answers

1:1

one blue to one yellow. IT IS THAT EZ

Evaluate x^2 when x is 1/2

Answers

Answer:

1/4

Step-by-step explanation:

substitute 1/2 for x

(1/2)^2

1/4

don't forget to write the parenthesis when putting an exponent to a fraction.

hope this helped!!!!!!!!

1. Simplify (45) - (+14) .​

Answers

Step-by-step explanation:

45 - ( +14 )

= 45 - 14

= 31

Hope it helps

Complete the following equation <, >, or = 3.20_ 3.02

Answers

Answer:

Step-by-step explanation:

Complete the following equation using , or = 3.20 ___ 3.02 A.

The following equation 3.20 > 3.02

simplify 4(3x -2y) + 3 (4x - 3y)

Answers

Answer:

24x-17y

Step-by-step explanation:

12x-8y+12x-9y

please mark branliest

Answer:

24x−17y

Step-by-step explanation:

4(3x−2y)+3(4x−3y)

Distribute:

=(4)(3x)+(4)(−2y)+(3)(4x)+(3)(−3y)

=12x+−8y+12x+−9y

Combine Like Terms:

=12x+−8y+12x+−9y

=(12x+12x)+(−8y+−9y)

=24x+−17y

Answer:

=24x−17y

standard form 2.975 x 10-7-

Answers

22.75 I have no explanation I just used a calculator :)

A bus travels at a rate of 55 miles per hour. The distance between Chicago and San Francisco is 2130 miles. How long would it take for the bus to travel from Chicago to San Francisco?

Answers

Answer:

About 38.72 hours

Step-by-step explanation:

Since the bus goes 55 miles per HOUR. You have to divide the total distance by the mph. Therefore, you would do 2130/55. So, the answer would be about 38.72 hrs. Hope this helped!

The bus travel from Chicago to San Francisco in 38.h2 hrs

It is given that Rate = 55 miles/hr

Distance = 2130 miles

We have to find the time

What is the formula for Distance?

Distance = Rate × Time

2130=55×t

38.72=t

Therefore 38.72 hrs is taken by the bus to travel from Chicago to Francisco

To learn more about distance problems click here : https://brainly.com/question/23774048

#SPJ2

Help please can y’all please answer 4-6 please

Answers

Answer:

4. the circumference = approx. 21.99

5. 30 feet

6. 150.8 feet

Step-by-step explanation:

4: 3.5*π*2= 21.99

5:. 1800÷60= 30

6. circumference equals approx. 37.7 feet and I multiplied that by 4 because the boy went around 4 times

hope this helps <3

HELP ASAP. solve for x

Answers

Answer:

x = 80

Step-by-step explanation:

x + 30 = 110 (Opposite angles are equal)

x = 110 - 30

x = 80

Round 8.7719% to the nearest tenth of a percent

Answers

Answer:

8.8%

Step-by-step explanation:

Answer:

8.8

Step-by-step explanation:

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