Mathematics High School

how do you solve this

Answers

Answer 1

Answer:

a = -4

b = 3

c = -10

d = -6

Step-by-step explanation:

Plug each value into the equation and solve.

[tex]a = 3(0)-4\\a=-4[/tex]

[tex]5=3b-4\\9=3b\\b=3[/tex]

[tex]c=3(-2)-4\\c=-6-4\\c=-10[/tex]

[tex]-22=3d-4\\-18=3d\\d=-6[/tex]

Related Questions

this is freckle math can someone help

Answers

Answer: 3x60=180x2=360+6/2=83 but you have to factor that she will sometimes fly backwards . Then after you that into count the answer is (2x6=42=54) now that you take "x" and turn it to 6 yoy get (5,4)

Step-by-step explanation:

The two ordered pairs are (0.05, 0.1) and (0.1, 0.2).

The graph is shown below.

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

y = 4x

y = number of miles

x = number of hours

4 miles per hour.

Now,

The rate is 2 miles per hour.

This means,

y = 2x

Now,

x = 3 minutes = 3/60 hour = 1/20 hour = 0.05 hour

y = 2 x 1/20 = 1/10 miles = 0.1 miles

The ordered pair is (0.05, 0.1)

x = 6 minutes = 6/60 hour = 1/10 hour = 0.1 hour

y = 2 x 1/10 = 1/5 miles = 0.2 miles

The ordered pair is (0.1, 0.2)

Thus,

The ordered pairs are (0.05, 0.1) and (0.1, 0.2).

Learn more about coordinates here:

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does anyone know the answer
(s/3) -4=2

Answers

Answer: 18

Step-by-step explanation:

Answer:

s=18

Step-by-step explanation:

Solve for s by simplifying both sides of the equation, then isolating the variable.

Brainly pls :)

pls help!!!!!!!!!!11

Answers

Answer: A

Step-by-step explanation: Every hour the temperature goes down 2 degrees and the h wouldn't go on the 32! Good luck! :D

Answer:

C. t = –4h + 21

Step-by-step explanation:

We know that when h = 0, t = 21°F. Replacing h = 0 in equation A and D we get:

t = 21h + 4

t = 21(0) + 4

t = 4

t = –21h + 4

t = –21(0) + 4

t = 4

So, none of them are correct.

The temperature drops 4 degrees every hour, this means that for h = 1 then t = 21 - 4 = 17. Replacing h = 1 in equation B and C we get:

t = 4h + 21

t = 4(1) + 21

t = 25

t = –4h + 21

t = –4(1) + 21

t = 17

In consequence, C is the correct option.

solve h+9.7=-9.7 and show me the steps

Answers

Answer:

h = -19.4

Step-by-step explanation:

1. Take the constant on the left side of the equation by changing the positive to a negative ---> h = -9.7 -9.7

2. Solve the right side, and you have yuor answer. ---> h = -19.4

He signed a promissory note with a term of three years the principal was $12,800 with interest at 12.5% how much did BP pay in interest on the note and on the maturity date how much did bo4 principal

Answers

Answer:

$48,000

Step-by-step explanation:

Step one:

given data

Principal= $12,800

rate= 12.5%

time = 3 years

Required

The Interest

Step two

SImple interest= PRT/100

substitute

SI= 12800*12.5*3/100

SI=480000/100

SI=$48,000

A (litres)
160
140
120
100
The amount of oil A left in a leaky barrel after
t minutes is shown on the graph alongside.
a Find the gradient and A-intercept of the line.
Interpret your answers.
6 Find the model connecting A and t.
c. How much oil will be left after 15 minutes?
d For what values of t is it reasonable to apply
this model?
80
60
40
20
0
12
6
(minutes)

Answers

Answer:

Step-by-step explanation:

Graph attached represents the relation between amount of oil left in the leaky oil tanker and time.

a). Gradient of the line = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

= [tex]\frac{(160-120)}{(0-8)}[/tex]

= -5

A-intercept = 160

b). Linear equation to represent the given relation in the graph will be,

A = (-5)t + 160

c). At t = 15 minutes,

A = (-5)(15) + 160

A = -75 + 160

A = 85 liters

d). This model is applicable till the container gets fully emptied.

For A = 0,

0 = -5t + 160

t = [tex]\frac{160}{5}[/tex]

t = 32 minutes

Therefore, this model is reasonable up to t = 32 minutes.

A rectangle with a perimeter of 9 units is graphed on a coordinate grid. The square is dilated by a scale factor of 0.2 with the origin as the center of dilation. If (x,y) represents the location of any point on the original triangle, which ordered pair represents the coordinates of the corresponding point on the resulting triangle?
A. (x + 0.2, y + 0.2)

B. (.2x, .2y)

C. (9x, 9y)

D. (x + 9, y +9)

Answers

Answer:

B now give me brain

2x^5-4x^3+6x^8
is this a trinomial with a coefficient of 2 or 6?

Answers

Answer:

Step-by-step explanation:

Coefficient: A number before the variable such as 4 in 4x.

When there is more than one term with coefficient the leading coefficient is always the one that is in the term with the highest exponent:

2x^5 and 6x^8

^8 is bigger than ^5, so that's the leading coefficient.

help me, please
. Which rate is about the same as 45 miles per hour?

A. 95 kilometers per hour

B. 72 kilometers per hour

C. 56 kilometers per hour

D. 32 kilometers per hour

Answers

Answer:

Option B.

Hey there!

According to the question,

45 miles per hour is given.

Then;

1 mile = 1.60 km

45 miles = 1.60*45

= 72 km.

Therefore, 45miles is equal to 72 km.

Hope it helps....

PLS help!!
Function 1 is defined by the equation d=-3/7t-4
Function 2 is defined by the following table.

Which Function has a more negative slope?
O function 1
O function 2
O both have the same slope

Answers

Answer:

function 2

Step-by-step explanation:

Answer:

Function 2

Step-by-step explanation:

Please help asap!!

Find the missing side lengths

Answers

C trust me I took the test

please help and show work if you can

Answers

Answer:

7. x = 5

8. x = 2, y = 6

9. x = 21, y = 39

Step-by-step explanation:

For a parallelogram, the lengths across intersection are equal.

7. For a parallelogram, the lengths across intersection are equal.

So that,

3x = 4x - 5

4x - 3x = 5

x = 5

8. For a parallelogram, the lengths across intersection are equal.

So that,

2x = 4

x = [tex]\frac{4}{2}[/tex]

x = 2

and

y - 1 = 2y -7

7 - 1 = 2y - y

y = 6

x = 2, y = 6

9. For a parallelogram, opposite angles have equal value.

Thus,

3x = (4x - 21)

3x = 4x - 21

x = 21

and

3y = (y + 78)

3y = y + 78

3y - y = 78

2y = 78

y = [tex]\frac{78}{2}[/tex]

= 39

y = 39

x = 21, y = 39

8 cars (3 red, 3 blue, 2 yellow) are parked in a line, how many arrangements can be formed if all the cars of each colour are identical and the yellow cars must not be together

Answers

Answer:

the answer is 18. There are 18 ways to arrange the cars.

Solve the equation for x. x^2 = 900

Answers

Answer:

x = 30, -30

Step-by-step explanation:

square root both sides to get the answer x=30

A perfect score in the game is 300 points You get a perfect score if you knock down 120 pins
Find what percent 120 is of 300 then express the percent oa a decimal

Answers

I have that as well I have no idea

Simplify the expression:
4x2 + 9x + 14 + 4x2 - 2x

ASAP PLEASEEEEEEE

Answers

Answer:

8x²+7x+14

Step-by-step explanation:

4x²+4x²= 8x²

9x-2x= 7x

14=14

8x²+7x+14

hope it helps! please mark me brainliest

thank you! have a good day ahead

Ehat is (-2,-4) rotated 270⁰ counterclockwise about the origin?

Answers

I’m not sure.. I think it would be(-2,4)

Tyler says he invented a number puzzle.

He asks Clare to pick a number, and then asks her to do the following:

Triple the number

Subtract 7

Double the result

Subtract 22

Divide by 6

Clare says her final answer is -3. Tyler says her original number she thought must have been 3.

How did Tyler know that? Explain or show your reasoning.

Answers

If Clare’s original number was 3 then she would first triple the number
3*3 is 9
Subtract 7 from 9 and you get 2
2 doubled is 4
22 subtracted from 4 is -18
-18 divided by 6 is -3
So Tyler just took Clare’s final answer (-3) and did the opposite if the steps back words
(multiple by 6, add 22, divide by 2, add 7, divide by 3)

Which graph shows a line with a slope of 0?

Answers

Answer: c

Step-by-step explanation: if there is no y then its just x=-2

Answer:

Step-by-step explanation:

m=y/x and in this case the graph doesn't cross y so ot is valued 0

11. UZ, VX, and TW are medians of Triangle TUV. If UZ = 21, find UY.

Answers

Answer:

UY = 14

Step-by-step explanation:

The median of a triangle is the segment that joins a vertex and the midpoint of the side opposite to this vertex.The point of intersection of the medians of a triangle, divide each median at ratio 2: 1 from the vertex

In the given figure

∵ TUV is a triangle

∵ UZ, VX, and TW are medians

∵ UZ ∩ VX ∩ TW at point Y

∴ Y is the point of intersection of the 3 medians

→ By using the 2nd rule above

∵ The point Y divide UZ at the ratio of 2: 1 from the vertex U

∴ UY: YZ = 2: 1

∴ [tex]\frac{UY}{YZ}[/tex] = [tex]\frac{2}{1}[/tex]

→ By using cross multiplication

∵ UY × 1 = YZ × 2

∴ UY = 2YZ

∵ UZ = UY + YZ

∴ UZ = 2 + 1 = 3 parts

∵ UY = 2 parts

∴ [tex]\frac{UY}{UZ}[/tex] = [tex]\frac{2}{3}[/tex]

→ Multiply both sides by UZ

∴ UY = [tex]\frac{2}{3}[/tex] UZ

∵ UZ = 21

∴ UY = [tex]\frac{2}{3}[/tex] (21)

∴ UY = 14

Melanie and Rena open a joint bank account for their jewelry-making business. Melanie contributes $400 to the account, and Rena deposits 225% as much money as Melanie. Which statements are correct?

Answers

Answer:

B,C, D

Step-by-step explanation:

Answer:900

Step-by-step explanation:

Rena deposits 900 into the account

help i forgot how to do this

Answers

Answer:uhhh

Step-by-step explanation: ok so ask for help from teacher maybe

What is the base in the expression 4⁵?
A. 4
B. 5
C. 9
D. 20

Answers

Answer:

Step-by-Step Explantion:

Base it always the big number not the little one on the top.

16/x = 2/7 cross multiplication

Answers

Answer:

x=56

Step-by-step explanation:

16 x 7= x * 2

[tex]x=\frac{16 x7}{2}[/tex]

x=56

Hope this helps :)

which value of x is the solution set of 2(3x-1)≥4x-6

Answers

Answer:

-1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

2(3x - 1) ≥ 4x - 6

Step 2: Solve for x

Distribute 2: 6x - 2 ≥ 4x - 6Subtract 4x on both sides: 2x - 2 ≥ -6Add 2 on both sides: 2x ≥ -4Divide 2 on both sides: x ≥ -2

Here we see that any value x greater than or equal to -2 would work as a solution.

What is the value of arccos(sin(5pi/4))

Answers

Step-by-step explanation:

arccos(sin(5π/4))

= arccos(sin(-π/4))

= arccos(-√2/2)

= 3π/4.

The value of trigonometric function arccos(sin(5π/4)), π/4

What is trigonometry?

Trigonometry is a branch of mathematics, which deals with the study of right angle triangles. Trigonometry is concerned with specified functions of angles and their applications to calculations.

There are 6 commonly used functions in trigonometry with their name and abbreviations-

sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), cosecant (cosec)

First, we can use the trigonometric identity sin(θ) = cos(π/2 - θ) to rewrite this expression:

sin(5π/4) = cos(π/2 - 5π/4)

Next, we can use the fact that cos(x) is an increasing function on the interval [0, π], so cos(x) is unique on this interval for each value of x.

This means that the inverse cosine function, arccos, is also unique on the interval [0, π].

Therefore, we can conclude that:

0 ≤ π/2 - 5π/4 ≤ π

arccos(sin(5π/4)) = π/2 - 5π/4 = π/4.

So the answer is π/4 in radians.

To know more about trigonometry check:

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If 5-x=3 then what is 3x^2

Answers

Answer:-

• Given:-

5 - x = 3

• Solution:-

➪ 5 - x - 3 = 0

➪ 5 - 3 - x = 0

➪ 2 - x = 0

➪ 2 = x

Hence, x = 2

Now,

✯ 3x²

➪ 3 × (2)²

➪ 3 × 4

➪ 12

Therefore, 3x² will be = 12.

I need help with this.

Answers

Answer:show me

Step-by-step explanation:

Answer this question plss

correct answer get's brainliest :D

Answers

Answer:

Step-by-step explanation:

Answer:

The answer is A :)

brainliest pls

Which value of n makes the equation true?
1/2(n+4)=6

Answers

Answer:

Step-by-step explanation:

1/2(12)=6

Answer:

Step-by-step explanation:

1/2(8+4)=6

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