Mathematics High School

helpp. Pleasee need answerr

Answers

Answer 1

Answer:

This probaly sounds a little confusing

Step-by-step explanation:

1 day = 10 laps

1 lap = 400 meters

1 km = 1000 meters

12 km = ? days

We can use this information to find out a lot that we don't know.

HOW MANY METERS PER DAY??

In order to find the number of meters in a day, we think, "She ran 400 meters 10 times... 400 times 10... that's 4000 meters in one day."

1 day = 4000 meters (10 x 400 meters)

HOW MANY KILOMETERS PER DAY?

In order to find the number of km in a day, we can think, "One thousand is a kilo. There are 4 'one thousand's in 4000. Kali ran 4 kilometers (literally 4 thousand meters) per day.

1 day = 4 km (4000 m / 1000)

From here you can solve simply by thinking "How many 4km does it take to get to 12km?"

4 x ? = 12

? = 12 / 4

? = 3

Related Questions

PLEASE HELP 20+ POINTS!!!! VERY VERY IMPORTANT

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Answer:C

Step-by-step explanation:30 percent of 7500 is 5250

someone help please :(

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Answer:

Step-by-step explanation:

Given f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift left of a units

• If a < 0 then a shift right of a units

Then

g(x + 3)² is the graph of f(x) translated 3 units left

Given f(x) then f(x) + c is a vertical translation of f(x)

• If c > 0 then a shift up of c units

• If c < 0 then a shift down of c units

Then

g(x) = g(x + 3)² - 7 is the graph of f(x)

Translated 3 units left and 7 units down

Select all the correlation coefficients that represent a linear model with a weak correlation .
A. -0.982
B. -0.618
C. -0.103
D. 0.204
E. 0.907
F. 1

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Answer:

C) -0.103 and D) 0.204

Step-by-step explanation:

A linear model with a weak correlation is gonna have an r value closest to 0, whether it be negative or positive. C and D seem to be the best choice as they're closest to 0.

Write an inequality to represent the real-world problem. Then complete the statements.

Jasmine’s computer cost more than $300.

The variable in the inequality represents
The inequality symbol needed is
The constant is
The inequality that correctly represents the problem is

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Answer:Just did the question 2021 edge

Step-by-step explanation:

Arjay records the number of chirps per minute (x) that crickets make at
different temperatures (™) in degrees Fahrenheit.
He determines that the association is linear and that the line of best fit is
y= *x + 40
What is the interpretation of the slope and y-intercept of this equation?
Temperature (°F)
90
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45
Chirps per minute

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Answer: B

Step-by-step explanation:

does anyone know how to do this or could explain how they got their answer?

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Answer:

Step-by-step explanation:

Answer:

using trigonometric ratio sin, which is

sin[tex]\alpha[/tex]=opp/hyp to mean opposite/ hypotenuse

sin 40°= x/9

multiply both sides of this by 9 to remove the 9 in the side we have x, we will have

sin 40°/9=x

sin° 40 =0.7451

so x= 0.7451/9

which is

x= 0.0827888888

to give it in 3 decimal places, the answer will be 0.083 since 7 is the fourth number and is more than five, we add 1 to the 2 making it 3

Hope this helps, and please mark brainiest

Step-by-step explanation:

Are the 2 triangles congruent? *
2 points
e) Yes or No
REASON:
A

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Answer:

Step-by-step explanation:

because they are struggling with their identity

A westbound train travels 16 miles per hour slower than the eastbound train. If two trains are 800 miles apart after 5 hours what is the rate of the westbound train?

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Answer:

Step-by-step explanation:

The rate can be calculated as follows

x + x -16

2x-16

(2x-16)×5

10x - 80= 800

10x = 300-80

10x, = 220

x = 220/10

= 22

22-16

= 6 mph

Hence the rate of the west bound tsin is 6mph

A trapezoid has a height of 6 inches, an area of 120 square inches, and one base measuring 13 inches. Find the length of the other base.

Answers

Answer:

Step-by-step explanation:

Givens

b1 = 13

b2 = ?

h = 6

Area = 120

Formula

Area = (b1 + b2) * h/2 Multiply by 2

2Area = (b1 + b2)*h Divide by h

2Area/h = b1 + b2 Subtract b1 from both sides

2Area/h - b1 = b2

Solution

2*120 / 6 - 13 = b2

40 - 13 = b2

b2 = 27

It is always handy to solve an equation in the form that finds the unknown on one side. It makes the solution much easier.

The formula to find the zero of linear polynomial in the form of y=ax+b is

Answers

Oten oten oten oten

Answer:

X = - b / a

Step-by-step explanation:

What is the slope of the line represented by -3x + 5y = 20 ?

Answers

The slope would be 3/5x

3/5 is the right one

Noha rides his bike 4 miles and andrew rides his bike 2 miles how long dose it take for them to meet up( there 15 miles away

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Step-by-step explanation:

Considering speed of Noha = 4miles per hour

and speed of andrew = 2 miles/hour

The distance between Noha and andrew = 15 miles

Case 1: when they are travelling towards each other( opposite direction)

Then their relative speed becomes = 4+2 = 6miles/hour

Time taken to meet = Distance/relative speed = 15/6 = 2.5 hours

Case2: When they are travelling same direction

Then their relative speed becomes = 4-2 = 2 miles/hour

Time taken to meet = Distance/ relative speed = 15/2 = 7.5 hours

What is the absolute maximum or minimum of f(x) = 3x^2-5x-9

Answers

Answer:

Absolute minimum / vertex = (5/6,-133/12)

Step-by-step explanation:

Since a is positive, then the absolute maximum is ∞. The absolute minimum would be the vertex of the parabola, meaning x=-b/2a=-(-5)/2(3)=5/6, and y=3(5/6)^2-5(5/6)-9 = -133/12. Therefore, your absolute minimum / vertex is (5/6,-133/12)

(5/6,-133/12) You have to use the formula x=-b/2a

Which shows [tex]4^{6}[/tex]÷[tex]4^{5}[/tex] in standard form?

A. 0
B. 1
C. 4
D.16

Answers

The

Answer:

Step-by-step explanation:

C. 4

Exponents first

PLEASE HELP SURFACE AREA TRIANGULAR

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Answer:

Step-by-step explanation:

i attached some screen shots that have the formula and the answer lol. I hope these answer your questions!

Find the area of the shaded sector. Blue Cross.

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Answer:64 cm^2

Step by step explication:
4(4)+4(4)+4(4)+4(4)= 64 cm^2

= Simplify the following algebraic expressions given below into their equivalent standard forms.

(x + 10)(x + 10)

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Answer:

https://tex.z-dn.net/?f=(x%2B10)%5E%7B2%7D%20

Step-by-step explanation:

HELP!!! answer quickly pls

Answers

Answer:

the first option

Step-by-step explanation:

hope it helps!!!

Answer:

it is y=2x+5 because replacing a point such as (-2;1) the remaining equation is 1=1, which is right

Step-by-step explanation:

convert 0.0008 as a fraction in its simplest form

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1/1250 is the answer I think

The triangle below has a perimeter of 20. Solve for x

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Answer:

x = 5

Step-by-step explanation:

Given that,

First side of a triangle = x+2

The second side of a triangle = 8

The third side of a triangle = x

We know that, perimeter is equal to the sum of all sides. So,

x+2+x+8 = 20

2x+10 = 20

2x = 10

x = 5

Hence, the value of x is equal to 5.

please help i need to turn it in

Answers

Answer:

978 in

Step-by-step explanation:

(9x6)+(18x18)+(25x24)=978

Answer:

978

Step-by-step explanation:

Make into 3 smaller rectangles and add the area

Please answer I really need help due at 11:50

Answers

Answer:

|-3| = 3

|3| = 3

Step-by-step explanation:

PLEASE ANSWER ILL TRY AND MARK BRAINKIEST IF YOH GIVE ME CORRECT ANDWER

Answers

Answer:

option 3

Step-by-step explanation:

Your answer would be option 3

What is 2x times 3x............................

Answers

Answer:

What is 2x times 3x

Step-by-step explanation:

3•2=6

Write the equation of a circle with a center of (1,-2) and radius of 4.

Answers

Answer:

(x - 1)^2 + (y + 2)^2 = 4^2

Step-by-step explanation:

The standard equation of a circle of radius r with center at (h, k) is

(x - h)^2 + (y - k)^2 = r^2

Replacing h with 1, y with -2 and r with 4, we get:

(x - 1)^2 + (y + 2)^2 = 4^2

HELP ASAP!!! No links please!! Add explanation! And I will give brainliest to whoever answers first!!!

Answers

Area: ½ x (sum of the lengths of the parallel sides) x perpendicular distance between parallel sides

Area = 1/2( 8 + 14) 5 = 1/2× 22 × 5 = 55 ft^2

What number am I? All of my digits are even. My tens digit is equal to two more than my hundreds digit. My ones digit is equal to two more than my tens digit.

Answers

Answer:

246 or 468.

Step-by-step explanation:

The only possible even digits are 2, 4, 6, and 8 (0 is neither even nor odd).

Therefore, your possible numbers are 246 and 468.

Riley invested $8,500 in an account paying an interest rate of 3.8% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $18,040?

Answer:

Answers

Answer:

First we subtract 8,500 from the 18,040. What we get from that is 9540. Now we divide 9,540 by 3.8 and see what we get. What we get is 2510.52631579 which means it would take around 2510.52631579 days to pay 18,040. In total that rounds to 7 years. Rounding up by the way

Step-by-step explanation:

help i’m confused‍♀️ kinda forgot what a inequality is over quarantine lol

Answers

Answer:

t ≤ 10

Step-by-step explanation:

To solve the inequality, simplify it.

-3t + 9 ≥ -21

Subtract 9 from both sides.

-3t ≥ -30

Divide by -3. When dividing by a negative, flip the inequality sign.

The answer is C, t ≤ 10.

A recipe for trail mix is shown below. 1 1/4 cups granola • 1/2 cup peanuts 1 / 4 cup raisins •1/8 cup chocolate chips Darnell wants to make of the recipe. How much granola, in cups, should he use?

PLEASE HELP ME ASAP YOU GET 10 POINTS FOR THE ONE WHO HELPS ME FIRST

Answers

Answer:

0.875 or 7/8

Step-by-step explanation:

you divide 1/2, 1/4, 1/8 into their decimal form and you add them all up into 0.875 and you turn it into its fraction form and get 7/8

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