Hi please help me i will mark as brainiest just please help!

Answers

Answer 1

Answer:

Step-by-step explanation:

Kahlil wants it to be more than 10 seconds long, and his friend wants it 5 seconds longer than that. So it has to be at least 10 + 5 seconds long or 15 seconds. B is the only option with >15, and all the possible track lengths below satisfy the inequality.

Related Questions

y = x2+6x+8 and y = (x+2)(x+4) both define the same quadratic function. Without graphing, identify the x- and y-intercepts of the graph.

Put each of the intercepts in the form of an ordered pair ( . ) ( . ).

You should have three ordered pairs in your answer. Two x-intercepts and one y-intercept.

Answers

Answer:

x-int:(-2,0)(-4,0) . y-int:(0,8)

Step-by-step explanation:

y = x2+6x+8 and y = (x+2)(x+4)

x-int:

x+2=0

x= -2

(-2,0)

x-int:

x+4=0

x=-4

(-4,0)

y-int: plug 0 for x

y=(0+2)(0+4)

y=8

(0,8)

The intercepts of a graph are the points where the graph crosses the x or y axes.

The x-intercepts are: (-2,0) and (-4,0)The y intercept is (0,8)

Given that:

[tex]y = x^2 + 6x + 8[/tex]

[tex]y = (x + 2)(x + 4)[/tex]

The x-intercepts

This is when [tex]y = 0[/tex]

So, we have:

[tex]y = (x + 2)(x + 4)[/tex]

[tex](x + 2)(x + 4) = 0[/tex]

Split

[tex](x + 2) = 0[/tex] or [tex](x + 4) = 0[/tex]

Solve for x

[tex]x = -2[/tex] or [tex]x = -4[/tex]

Hence, the x-intercepts are: (-2,0) and (-4,0)

The y-intercepts

This is when [tex]x = 0[/tex]

So, we have:

[tex]y = x^2 + 6x + 8[/tex]

Substitute 0 for x

[tex]y = 0^2 + 6 \times 0 + 8[/tex]

[tex]y = 8[/tex]

Hence, the y intercept is (0,8)

Answers

Step-by-step explanation:

The TMV (total market value) of a new car with zero miles decreases by 9% the first minute after it leaves the car lot. Determine the TMV of a new car that was purchased for $29,500 the first minute after it leaves the car lot.

Answers

Answer:2

Step-by-step explanation:

What is the slope of the line below? Be sure to scroll down first to see all
answer options.
(-14,3) (2,-5)

Answers

Answer:

Step-by-step explanation:

The slope of a line can be determined by any two points on the line and is defined as

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

We are given points (-14,3) and (2,-5) so

m=(-5-3)/(2-(-14))

m=(-8)/(16)

m= -1/2. (Answer F)

simplify 1/2 +2/3-1/6

Answers

Answer:

Step-by-step explanation:

1/2 = 3/6

2/3 = 4/6

3/6 + 4/6 = 7/6

7/6 - 1/6 = 6/6 or 1

The answer is 1 I believe

plsss help meee in math :(((

Answers

Answer:

a = 30

2a = 60

3a = 90

Step-by-step explanation:

3a + 2a + a = 180 ( Sum of angles of a triangle is 180)

6a = 180

a = 180/6

a = 30

2a = 2 x 30 =60

3a = 3 x 30 = 90

Which of the following are compound events in which the results of one event affect the likelihood of the other event? PLZ HELP ASAP
Answers: 1. independent events
2. dependent events
3. theoretical events
4. fair events

Answers

Answer:

2. Dependent events

Step-by-step explanation:

A bus driver covers a certain distance in 3 hours at an average speed of 80 km/h. How long will the journey take at an average speed of 50 km/h?

Answers

Answer:

d= s x t

=50km/h x 3h

= 150km/h

Triangle Theorems, Help!!!

Answers

Answer:

x = 8

Step-by-step explanation:

(6x + 7)° + 45° = (13x - 4)° => exterior angle theorem of a triangle

6x + 7 + 45 = 13x - 4

6x + 52 = 13x - 4

Collect like terms

6x - 13x = -52 - 4

-7x = -56

Divide both sides by -7

x = -56/-7

x = 8

A 3D shape is shown below.
Select the matching net or nets from the options given.
plz tell me the answer

Answers

Answer:

my best guess would be B but I am so sorry if its incorrect

the top teams speed for each leg is 56.81, 59.22, 57.39 and 60.11. whats the best time

Answers

enejxjkwsoqoapspwpdoeowo

I really need help on this!

Answers

hii! i just wanted to say hope you're having a fantastic day and hope that things are going well (: stay strong and stay safe!

17

You know that O and M are congruent because of NM and NO being congruent. You also know NMO = 180. So after substitution it’s 12y-24=180

how to do this plz help

Answers

Answer:

13. 8

14.3

15.5

17.3

18.4

19.10

PLEASE HELP ME THANKS SO Much

Answers

9514 1404 393

Answer:

(b) x = 7, AB = 9, AC = 12

Step-by-step explanation:

ΔAEB ~ ΔCDB so corresponding sides are proportional.

AB/CB = AE/CD

(x+2)/(x -4) = 12/4

x +2 = 3(x -4) . . . . . . multiply by x-4

x +2 = 3x -12 . . . . . . eliminate parentheses

14 = 2x . . . . . . . . . . . add 12-x

7 = x . . . . . . . . . . . . . divide by 2

AB = x +2 = 7 +2 = 9

BC = x -4 = 7 -4 = 3

AC = AB +BC = 9 +3 = 12

In summary, ...

x = 7, AB = 9, AC = 12 . . . . . matches the 2nd choice

_____

Additional comment

Please note the other choices make no sense.

(a) AB = x +2 = -5 +2 = -3 ≠ -9

(d) segment lengths are never negative in a geometrical figure

find the volume of a plastic cube vuilding block with a side length of 12 centimeters

Answers

Step-by-step explanation:

Length of the plastic cube (L) = 12 cm

Volume of the cube

= L³

= ( 12)³

= 1728 cm³

Hope it will help :)❤

How do you write "Hello World" in an alert box?

Answers

i can't type it in here, so i wrote in a paper for you

I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS

Answers

Answer:x=4.2643

Step-by-step explanation:

tan35degrees=x/9

9(tan35degrees)=x

4.2643=x

Answer:

Answer:x=4.2643

Step-by-step explanation

1/4 1.5230×10−5 – 2.3645×10−5 –

1/8 8.8284×10−7 4.11 7.4676×10−7 4.98

1/16 6.2147×10−8 3.83 6.1723×10−8 3.60

1/4 1.4831×10−7 – 4.0071×10−7 –

1/8 1.7259×10−8 3.10 2.8021×10−8 3.84

1/16 9.7124×10−10 4.15 1.6602×10−9 4.08

1/32 6.4505×10−11 3.91 1.0675×10−10 3.96

1/64 4.8334×10−12 3.74 8.1590×10−12 3.71

In ΔOPQ, the measure of ∠Q=90°, OP = 7.7 feet, and PQ = 4.1 feet. Find the measure of ∠O to the nearest degree.

Answers

Answer:

32 degrees

Step-by-step explanation:

Answer:

32 degrees

Step-by-step explanation:

A storage box in the garage is 3 feet tall, 4 feet long and has a volume of 9 cubic feet. How many square feet is the area of the base of the box?

Answers

Answer:

3 ft^2

Step-by-step explanation:

first find the width of the storage box using the given volume

V = L * W * H

9 = 4 * W * 3

9 = 12 * W

9/12 = W

W = 3/4 or .75

then with that to find the are of the base multiply the length and the width

a = l * w

a = 4 * 3/4

a = 3

Homework
Answers are given at the end of
the chapter
Q1 Change 0.035 g to milligrams.

Answers

Answer:

the answer 0.035 g = 35 milligrams

Answer:

Step-by-step explanation:

35miligram in 0.035g

please help me with this!!!!!

Answers

Answer:

Step-by-step explanation:

it c because i said so. and im right so the answer is C

Answer:

C. 3/8

Step-by-step explanation:

To solve think about how many sections there truly are. The 5 section represents 3 parts, the 2 section represents 2 parts, and the 1, 4, 3 sections represent 3 parts in total. This means overall there are 8 parts to this spinner. Since 5 takes up 3 of these 8 parts, the probability of the pointer landing on 5 is 3/8.

How many grams of a radioactive kind of neodymium will be left after 33 days if the half-life is 11 days and you start with
160 grams?

Answers

Answer:

20 grams will be left.

Step-by-step explanation:

Half-life is 11 days

This means that in each 11 days, you lose 50% of the amount.

33 days

33/11 = 3 half-lifes.

You start with 160 grams

After 11 days: 160/2 = 80 grams

After 22 days: 80/2 = 40 grams

After 33 days: 40/2 = 20 grams.

20 grams will be left.

Answer:10

Step-by-step explanation:

So I have a grade of 100.6 (an A+) and I had this assignment that was due a while ago (that was 15 points) and now I’m not allowed to turn it in. What would be my grade now that I didn’t do that assignment?

Answers

Answer:

maybe an 80 or 90

Step-by-step explanation:

Which expression is equal to 48 + 72?
A
24(2 + 3)
B
8(6 + 12)
с
3(14 + 24)
D
2(24 + 38)

Answers

Answer:

Step-by-step explanation:

I did the math and i have no doubt

I need help on this problem

Answers

Step-by-step explanation:

[tex] {f}^{ - 1} (x) = x \: value[/tex]

[tex]f(x) = \sqrt[4]{x} + 6 \\ [/tex]

[tex]x - 6 = \sqrt[4]{x} [/tex]

[tex] {(x - 6)}^{4} = x[/tex]

[tex] {f}^{ - 1}(x) = {(x - 6)}^{4} [/tex]

Shane can type 275 words in 5 minutes. Hillary can type 240 words in 4 minutes.

Who is the fastest at typing and what is their unit rate?

A

Shane can type 1,375 words per minute.

B

Shane can type 55 words per minute.

C

Hillary can type 960 words per minute.

D

Hillary can type 60 words per minute.

Answers

Answer:

The Answer Is D

Step-by-step explanation:

It kind of self explanatory .

Hillary is the fastest typer and D. Hillary can type 60 words per minute.

What is a unitary method?

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, Shane can type 275 words in 5 minutes.

So, Shane can type (275/5) = 55 words per minute.

Also given that Hillary can type 240 words in 4 minutes.

So, Hillary can type (240/4) = 60 words per minute.

Therefore, Hillary is the fastest typer.

learn more about the unitary method here :

https://brainly.com/question/28276953

#SPJ2

The relationship between income (I), in dollars, and the time (h), in hours, for 2 different jobs is represented. Compare the hourly rates of Job A and Job B.

Which job offers a higher rate per hour and by how much?

A. Job A pays $5.25 more per hour than Job B.

B. Job A pays $4.75 more per hour than Job B.

C. Job B pays $5.25 more per hour than Job A.

D. Job B pays $4.75 more per hour than Job A.

Answers

Answer the answer is d

What are the zero(s) of the following function: f(x)= -8X - 4?

Answers

0=-8x-4
you then move the variable to the left and you get
8x=-4
you then divide both sides to get the answer
x=-1/2

What values of the variables highlighted would create an equation infinitely many solutions

Answers

a = -5
b = 2
I’m pretty sure

Divide $400 in the ratio 3 :5

Answers

Solution:

Given ratio - 3:5

1 part = 3

2 part = 5

Total no. of parts = 3 + 5 = 8 parts

400 / 8 = 50

3 * 50 = 150

5 * 50 = 250

I think that's it :D

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