Mathematics College

Please help!!!!! ASAP it’s a checkpoint

Answers

Answer 1

Answer:

Option A. x = –5 ± √133 / –6

Step-by-step explanation:

0 = –3x² + 5x + 9

From the above equation the following data were obtained:

Coefficient of x² (a) = –3

Coefficient of x (b) = 5

Constant (c) = 9

Using formula method, the solution to the equation can be obtained as follow:

x = –b ± √(b² – 4ac) / 2a

a = –3

b = 5

c = 9

x = –5 ± √(5² – 4 × –3 × 9) / 2 × –3

x = –5 ± √(25 + 108) / –6

x = –5 ± √133 / –6

Thus, option A gives the correct answer to the question.

Related Questions

An airplane is traveling at an altitude of 30,000 feet
above sea level and needs to get above 35,000 feet.
The airplane can climb 500 feet every minute. How
long will the airplane need to travel to get above 35,000
feet?

Answers

Answer:

Solution in photo

500 people were surveyed about their favorite type of pet. 55% of the people said
"dog", 1/10 said "cat", 0.3 said "bird", and the rest said "other". How many people
responded "other"?

Answers

Answer:

25/500 or 5% said 'other'

Step-by-step explanation:

55% = 275 (dog)

1/10 = 50 (cat)

0.3 = 150 (bird)

Total = 475

475 out of 500 (95%) gave an answer other than 'other'

Tony weighs his pet turtle on a scale in his bathroom. The turtle weighs 6 1/4 pounds. His turtle weighed 3 1/6 pounds when he first got him. About how much more does his turtle weigh now?

Answers

3 1/12. Find the lowest common denominator. Multiply the the numerator and denominator by that. Then simplify.

Mandy runs 4 km in 18 minutes. She plans to run in a 16 km race. Based on her current speed. how long will it take her to complete the race

Answers

Answer:

72 minutes

Step-by-step explanation:

You need to set up 2 fractions and set them equal to one another to be able to solve this.

Equation: 4km/18min = 16km/x min

You need to find x. In order to do this you can use that butterfly method/cross multiplication. You do 4 times set equal to 18*16.

Next, you get 18*16=288 and you must divide the other side (4x) to get your final answer. So, 288/4= 72 minutes.

Hope this was helpful!

multiply the polynomial
(x-1)(2x^2-5x+1)

Answers

Answer:

2x^3 - 7x^2 + 6x - 1

Step-by-step explanation:

Thank me later lol.

The dimensions of two square pyramids formed of sand are shown. How much more sand is in the pyramid with the greater volume?

I will ONLY give brainliest to whoever answer FIRST AND whoever answers CORRECTLY!

Answers

Answer:

There is 32in² more sand in the pyramid with greater volume.

Step-by-step explanation:

Volume of rectangular pyramid = l²*h/3, where l is the base length and h is height.

Volume of left pyramid=l²*h/3=8²*(6/3)=64*(2)=128in³

Volume of right period=l²*h/3=6²*(8/3)=36(8/3)=96in³

128-96=32, there is 32in² more sand in the pyramid with greater volume.

which names apply to the number
48

integer
irrational
real
whole
rational

Answers

Answer:

All except irrational apply to the number 48

3^x = 9x. What is the value of x?

Answers

x = 3

[tex]3^{3} =[/tex] 3 x 3 x 3 = 27

9x = 9 x 3 = 27

John buys an item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. What is the final price that John pays, including tax?

Answers

Answer:

$43.20

Step-by-step explanation:

20% of $50.00 is $10.00. $50 - $10 is $40. 8% of $40 is $3.20. Since this is tax, you must add it. $40+$3.20 = $43.20

please help i’ll give brainliest

Answers

The answer is 65pi for lateral surface area

Four friends each took a different path walking from the drinking fountain to the cypress tree. Who walked the farthest?
Rowan 150yd
Janelle 429ft 8in
Domingo 130yd 2ft
Lydia 460ft

Answers

Lydia because when you convert all of the distances into inches, Lydia’s total distance is 5520 inches.

Can someone help me pls

Answers

Answer:

AB is not a tangent

Step-by-step explanation:

yOA^2=OB^2+AB

AB y a tangent

19^2=361,15^2=225, 8^2+64=289

So here the tangent isn't a tangent.

Hope it helps.....

A box is being packed with cubes that measure 1 cubic foot. What is the volume of the box in cubic feet

Answers

Answer:

81 cubic foot

Step-by-step explanation:

It is given that the box is packed with cubes whose side is 1 foot. So the volume of one cube is 1 cubic foot.

Now from the figure, we can see that :

Number of cubes fitting the box across its length = 9 cubes

Number of cubes fitting the box across its width = 3 cubes

Number of cubes fitting the box across its height = 3 cubes

And each of these cubes measures 1 x 1 x 1 cubic foot

So the volume of the box can be found out by:

Volume = length x width x height

= 9 x 3 x 3

= 81 cubic foot

Therefore volume of the box is 81 cubic foot.

PLS HELP WILL GIVE BRAINLIEST IVE BEEN ASKING FOREVER :(((((

Answers

Answer:

C) 0.36

Step-by-step explanation:

4÷11= 0.36363636363636

so it's 0.36 with a line over it indicating a repeating decimal

What is the value of x in this figure?
Enter your answer in the box.
x=

Please help meeee!!

Answers

Answer:

x=48°

Step-by-step explanation:

We two lines cross over each other, making four angles, the angles opposite each other are equal. They're called vertically opposite angles.

x=48 degrees
extra characters:hsjahjshajsjanns

GCF of 48, 36, and 16. (this is all I need thx) :)

Answers

Answer:

Step-by-step explanation:

16=2^4

48=2^4·3

36=2²·3²

GCF=2^2

hope this helps :)

PLEASE HELP NO SCAM LINK OR REPORTED :) THANKS

Answers

Answer: b

Step-by-step explanation:

2x is x doubled

and then add 5 to the product

Find the vertex of the parabola y = x2 + 5x.

Answers

Write the equation as a mathematical expression.
y = x^2+5x

Rewrite the equation in vertex form
y = (x+(5/2))^2 -(25/4)

Find a h and k using the vertex form y=a(x-h)^2 + k
a=1
h=(-5/2)
k= (-25/4)

answer: (-5/2 , -25/4)

Alice has 5 quarters and 2 nickels. How many cents does Alice have

Answers

Answer:

Alice has 135 cents, or $1.35.

Step-by-step explanation:

A quarter is worth 25 cents.A nickel is worth 5 cents.Multiply 25 by 5, since there are 5 quarters. That will give you 125.Multiply 5 by 2, since there are 2 nickels. That will give you 10.Add 125 and 10. That will give you 135, which is your answer!

Cory writes the polynomial x7 + 3x5 + 3x + 1. Melissa writes the polynomial x7 + 5x + 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?

Answers

Answer:

Yes??

Step-by-step explanation:

7+3x5+3x+1

7+15+3x+1

22+3x+1

3x+23

7+5x+10

5x+17

Yes, much difference

---

hope it helps

sorry if i'm wrong, sum of the x's confused me

Answer:D

Step-by-step explanation:

Which point represents the opposite of —5 on the number line?

Answers

Answer:

5 :)

Step-by-step explanation:

The answer that points the opposite of -5 is 5

calculate (4-3,5(2 1/7-1 1/5)):0,14

Answers

Answer:

sin (330)

cos (390)

csc (60)

------------------------------------------------

Hope this helps!!! :)

What is the slope for a line that is perpendicular to the line y = 4x + 8?

Answers

Answer:

m2 =1/4

Step-by-step explanation:

m1 . m2 = 1

m1 is given 4 then

4.m2 =1

4.m2/4 =1/4

m2 = 1/4

Hello there!

The slopes of perpendicular lines are opposite reciprocals.

So, if one line has a slope of 4, then the slope of the line perpendicular to it is the opposite of 4 flopped over (-1/4)

And we're done! Hope it helps you!

If you have any questions, feel free to ask!

~An excited gal

[tex]MagicalNature[/tex] here to help

chose the number equal to -9 times -1/3

Answers

i’m pretty sure it’s 3. The number equal to -9 times -1/3 is 3

What App or what Website can help me solve problems of Statistics?

Answers

the varsity tutors ap statisyics app (app)

A family buys 4 airline tickets online. The family buys travel insurance that costs $19 per ticket. The total cost is $752. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

Answers

Answer : 169

Step-by-step explanation:

4(x+19) = 752

4x +76 = 752

4x = 752 - 76

x = 676/4

x=169

Hope this helps ;)

Please mark me the BRAINLIEST

Simplify. 6 to the power of 2+3 to the power of 2.

Thanks!

Answers

Answer:

Step-by-step explanation:

6 to the power of 2 + 3 to the power of 2

6² + 3²

(6 × 6) + (3 × 3)

36 + 9

What’s the correct answer for this question?

Answers

ANSWER

EXPLANATION

The given line has slope,

and

We can find the equation in the point slope form, which is given by,

We substitute the point and slope to get,

We can also simplify further to get,

We make y the subject to get,

This is called the slope intercept form.

We could also write in standard form to get

43.1424 divided by 8.56

Answers

Answer: 5.04

Step-by-step explanation:

the answer is 5.04 :p

On which day of the month were you born?

a Categorical
or
b Numerical

Answers

Answer:

a (typing more bc of limit lolol)

Other Questions

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