Find the x-intercepts for y = -7x2 + 4x + 9 using the quadratic formula. Choose all
correct answers.

Answers

Answer 1
what are the answer choices 35

Related Questions

halp
A 43-foot ladder is leaning against a building and forms a 29.37° angle with the ground. How far away from the building is the base of the ladder? Round your answer to the nearest hundredth.

21.09 feet
24.20 feet
37.47 feet
49.34 feet

Answers

Answer:

37.46

Step-by-step explanation:

I think not sure tho

What is the area of this trapezoid enter your answer in the box

Answers

9514 1404 393

Answer:

  336 cm^2

Step-by-step explanation:

The area of a trapezoid is given by the formula ...

  A = 1/2(b1 +b2)h

where b1 and b2 are the base lengths, and h is the height. Filling in the values shown gives ...

  A = (1/2)(28 +14)(16) = (1/2)(42)(16) = 336 . . . . cm^2

15 to 18 =
What are 3 equivalent ratios to 15:18

Answers

Answer:

30 : 36

45 : 54

60 : 72

please help i m clusless

Answers

Answer:

-25+? = -5

cross -5 over and it the negative sign would turn to postive sign

-25+(5)=?

Therefore answer = 20

To confirm this answer

-25+20= -5

Answer: (1) 20 (2) -15 (3) -10

Explanation:
I know it’s late but hope this helps! ^^

Match the following words to the correct definition:
_____ translation ______ rotation ______reflection _____dilation

A. Flip B. Enlarge/reduce C. Turn D. Slide

Answers

Answer:

A. Flip ---> reflection

B. Enlarge/reduce ---> dilation

C. Turn ----> rotation

D. Slide ----> translation

Step-by-step explanation:

D and translation

A and reflection

C and rotation

B and dilation

it just makes sense.

dilation means like if you stung by a bee and it starts to swell but it can also be used as a way to say something shrunk.

reflection means yourself flipped

rotation means like your turning around or turning something around

i don't know if translation has anything to do with slide but it was the last option and all the others make sense.

3 1/8 divided by 1 2/3

Answers

Answer:

15/8 and mixed number is 1 7/8

Step-by-step explanation:

Answer:

1 7/8

Step-by-step explanation

Drag the values from the problem and fill in the blanks to create and solve a system of equations.
Overview
KM
First
<
Previous
>
Skup
Huck has a handful of coins. There are 13 total
coins and he only has nickles and dimes. He knows
that he has $1.05 in total money. How many dimes
and nickles does he have?
x + y = |(13
Let x = # of nickels
Let y = # of dimes
y = ||1.05
Equation for the
number of coins
Remember
X
Give up
X +
Equation for the
value of the coins
Submit
X =
y =

Answers

Answer: uhhh

Step-by-step explanation:

Solve for X using this system of equations. Then just explain what you would do to solve for Y.
2Y + 2X = 10
Y = 1 + X

Answers

2(1+x)+2x=10
2+2x+2x=10
4x=10-2
4x=8. /:4
x=2

y=1+2
y=3

In 2nd u know y it says y= and then u put it in the 1st one

The population of a certain community is known to increase at a rate proportional to the number of people present at time t. If the population has doubled in 5 years, how long will it take to triple?

Answers

Answer:

[tex]t=7.85 years[/tex]

Step-by-step explanation:

We can write this rate as an ordinary differential equation.

[tex]\frac{dP}{dt}=aP[/tex]

Where a is proportional constant, P the population variable, and t the time.

[tex]\frac{dP}{P}=adt[/tex]

Integrating each side of the equation.

[tex]\int \frac{dP}{P}=\int adt[/tex]

[tex]ln(P)=at+c[/tex]

[tex]P=e^{at+c}[/tex]

[tex]P=e^{c}e^{at}=Ce^{at}[/tex]

To find C we need to use the initial condiction, it means evaluae P at t=0.

[tex]P_{0}=Ce^{0}=C[/tex]

[tex]P=P_{0}e^{at}[/tex]

Now, we use the sentence  the population has doubled in 5 years.

[tex]2P_{0}=P_{0}e^{a5}[/tex]

We can find "a" in this condition.

[tex]2=e^{a5}[/tex]

[tex]ln(2)=a5[/tex]

[tex]a=\frac{ln(2)}{5}[/tex]

[tex]a=0.14[/tex]

Finally, let's find how long will it take to triple.

[tex]3P_{0}=P_{0}e^{0.14t}[/tex]

[tex]3=e^{0.14t}[/tex]

[tex]t=\frac{ln(3)}{0.14}[/tex]

[tex]t=7.85 years[/tex]

I hope it helps you!

I'm back.... Can someone please help me with these two problems?

Answers

Answer:

It is b and a

Step-by-step explanation:

Graph the inequality by finding the boundary line, then shading the appropriate area.

y>−7/3+2x/3

Answer: b and a is ur answer

Step-by-step explanation:

4) Which formulas can be used to find the area of a parallelogram and a
square? There are two possible answers. Check one.
10 pa
O A = b x h
A = 2L + 2W
A = L + L + W + W
A = bh

Answers

Answer:

O A = Bx H and A = L + L + W + W.

Step-by-step explanation:

Graph 16x−4y=2.Please answer I will make you the brainlist and rate you 5 stars if good.And report if bad.

Answers

Answer:

First one is the graph second one is the equation

Step-by-step explanation:

Hope this helps :)

Answer:

Step-by-step explanation:

as graphed

what is equal to 2/5

Answers

Answer:

0.4

Step-by-step explanation:

if fractions: 4/10, 6/15, 8/20, 10/25 and so on. decimal form: 0.4
percentage: 40%
hope that helps!!

The number of dimes in Kiara's collection is 13 more than 5 times the
number of quarters in her collection. Kiara has 78 dimes in her
collection. Which equation could be used to find the number of
quarters in Kiara's collection?

Answers

Answer: I don’t think I understand can you set this up differently so I can answer this please

Step-by-step explanation:

There are 300 students in a middle school,
150 students are fluent in a second language.
What percent of the students are fluent in a
second language?

Answers

The percentage of students that are fluent in a second language in 50%

The table below shows the number of tea bags needed to make different amounts of iced tea. What is the total number of quarts of iced tea that can be made with 24 tea bags?

Answers

Answer:

6

Step-by-step explanation:

Search it up.

For 24 Tea bags 6  quarts of iced tea that can be made.

What is Proportion?

In general, the term "proportion" refers to a part, share, or amount that is compared to a total.

According to the concept of proportion, two ratios are in proportion when they are equal.

A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.

Given:

We have the Table,

With 8 tea bags, 2 Quartz of Iced Tea made.

As, there is proportionality between two values.

So, 16 / 4= 24 / x

4 = 24 / x

x = 24/4

x= 6

Hence, For 24 Tea bags 6  quarts of iced tea that can be made.

Learn more about proportion here:

https://brainly.com/question/26974513

#SPJ2

Tony can type at a constant rate of 110 words every 2 minutes.

Write an equation for the number of words, W, Tony can type in T minutes.

Answers

Answer:

W = 55T

Step-by-step explanation:

He types 110 / 2 = 55 words every minute. Thus, W = 55T

Lamar rented a truck for one day there was a base fee of 18.95 and there was an additional charge of 93 cents for each Miles driven. Lamar had to pay 154.73 when he returned the truck . For how many miles did he drive the truck

Answers

Answer:

146 miles

Step-by-step explanation:

Hope this helps!

Answer:

146 miles

Step-by-step explanation:

He payed 135.78 total for gas. Take that number, and divide it by .93 to find out how many miles he drove.

Please help.. Please. Is this a positive trend or negative trend or no trend ​

Answers

Answer:

it's a no trend cause its literally nothing but dots

Bo, Ryan and Zach walked 1/4 miles from school to Bo’s house. They walked 4/6 miles from Bo's House to the park what is the total distance the boys walk?

Answers

Answer: They walked 11/12 miles

Step-by-step explanation:

1/4 + 4/6

3/12 + 8/12

11/12

(15 POINTS) Select the correct answer.
Which equation has infinitely many solutions?

A. -5(x + 2) = -4x - 12 - X + 2
B. 3x – 4 + 2x = 5(x-4)
C. 5(x + 7) = -5(X - 7)
D. 6x + 2 - x = -2x - 2 + 7 x

Answers

A. -5(x+2)=-4x-12-X+2

22= 18x + 4 please help!!

Answers

Answer:

x=1

Step-by-step explanation:

22-18=4  18-18=/

18x1=18

22=18(1)+4

22-18(1)=4

Answer:

22=18x + 4

Step-by-step explanation:

collect like terms 22 and +4

+4 crosses equality sign and turns to -4

you get 22-4=18x

therefore 18x=18

cancel 18 in both sides x = 1

Use cubic regression to find a
function that fits the following
points.
(1,-9), (2,-15), (3,-29),(-1,3)

Answers

The cubic regression equation that fits the points (1,-9), (2,-15), (3,-29),(-1,3) is given as follows:

f(x) = -x³ + 2x² - 5x - 5.

How to find the equation of regression using a calculator?

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that:

The values of x are: 1, 2, 3, -1.The values of y are: -9, -15, -29, 3.

Using the calculator, the equation is given by:

f(x) = -x³ + 2x² - 5x - 5.

More can be learned about regression equations at https://brainly.com/question/16793283

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1) A recipe for a fruit drink calls for 2 cups of fruit juice for every 5 cups of water. Look at each drink mix. Does each drink mix
follow the recipe?
Yes
No
A 4 cups of fruit juice and 10 cups of water
Yes
No
B 0.5 cup of fruit juice and 1 cup of water
Yes
No
с
1 cup of fruit juice and 2.5 cups of water
Yes
No
D
7 cups of fruit juice and 17 cups of water

Answers

Answer:

yes, no , yes, no in order

Step-by-step explanation:

Katie's deli can make 60 sandwiches in 4 hours. Stacy's can make double that in the same amount of time. How many sandwiches can Stacy's deli make in 6 hours​

Answers

Answer:

Step-by-step explanation:

Answer: 150 sandwhiches

Step-by-step explanation: 60 sandwhiches in 4 hours. 15 sandwhiches per hour so you add 30 to the doulbe of 60 which is 120 then you add 30

Find whole numbers a,b,c so that

Answers

Answer:

Step-by-step explanation:

I can't give answer you by step to step cause I can't make any symbols through my computer.

Directions: Convert the following equations from standard form to slope-intercept form.
(10 points)

14. 4x + y = -1

15. 5x - 2y = 14

16. 10x - 2y = -6

17. 8x + y = 12

18. 6x - 10y = 20

Answers

y= -4x-1
y= 5/2x-7
y=5x+3
y= -8x +12
y= 3/5x-2

The y intercept is at the point '?'

The roots are x = ? and x = ?

The turning point is at ( ? , ? )

Answers

Answer:

See below.

Step-by-step explanation:

The y-intercept is the point where the line passes the y-axis. In this instance, that is at the point (0, 3).

The roots are the x-intercepts are the points where the line crosses the x-axis. In this instance, the roots are x = -3 and x = -1.

The turning point is the vertex of the equation. In this instance, the vertex is on the point (-2, -1).

Now let's assume that you have a newer toilet that uses 6 L per flush, but you are considering upgrading to a dual-flush toilet. If you flush the toilet four times per day, but three of those times you could use the 3 L flush, how many liters of water would you save in 1 year

Answers

Answer: 3,285 Liters

Step-by-step explanation:

In the actual case, all your flushes consume 6 L of water.

You flush 4 times per day, then you consume 4 times 6 L per day, this is:

4*6L = 24 L per day.

And in one year there are 365 days, then in one year you consume:

365*24 L = 8,760 L

Now, if you upgrade the toilet, now per day you use:

one time 6 L and 3 times 3 L

Then in day, you use:

1*6 L + 3*3 L = 6L + 9L = 15L

And in the complete year, you will use 365 times that, which is:

365*15 L = 5,475 L

The amount of water that you would save is equal to the difference between the amount that you use in one year with no upgrade (8,760 L) and the amount that you would use in a year if you upgraded your toilet ( 5,475 L)

The difference is:

D = 8,760 L - 5,475 L = 3,285 L

This means that, in this situation, you would save 3,285 liters of water per year if you upgrade your toilet.

Can someone please help!!!!

Answers

Answer:

2/5

Step-by-step explanation:

since the denominators are the same, the question is basically -4+6, which is 2.  But remember to include the denominator

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