Mathematics High School

What is the slope of line ?

Answers

Answer 1

Answer:The slope is m= 1/2

(0,-2) & (2,-1)

Step-by-step explanation:

(0,-2) & (2,-1)

m=y²-y¹/x²-x¹

m=(-1)-(-2)/2-0

m=1/2

Related Questions

Gabby measures out 5 1/2 pounds of almonds at the grocery store bulk section. At the check out total cost came up to $20.90 What is the price per pound?

Answers

Answer:

$3.80/pound

Step-by-step explanation:

We can just divide the price by the amount to find the price per pound.

20.90 ÷ 5.5 = 3.80

Hope this helps!

You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price. a. Write and solve an equation to find how much you spend on each CD. Let p represent the price you pay for each CD. Equation: =30.40 You spent $ on each CD. Question 2 b. The next day, the CDs are no longer one sale. You have $25. Will you be able to buy 3 more CDs? No, you will not be able to buy 3 more CDs. Question 3 c. Explain your reasoning for part (b). Each CD costs $ at the regular price, so 3 CDs would cost $ .

Answers

Answer:

$7.6 ;

No, you will not be able to buy 3 more CDs

$9.5

$28.5

Step-by-step explanation:

Given that :

Cost of 4 CDs = $30.40

Cost per CD is equal

Sale price = 80% of original price

Price p per CD:

Cost of 4 CDs / number of CDs

$30.40 / 4

= $7.6

No, you will not be able to buy 3 more CDs

If x = original price

80% of x = 7.6

0.8x = 7.6

x = 7.6 / 0.8

x = $9.5

$9.5 * 3 =$28. 5

Hence, $25 can't buy 3 CDs the next day (28.5 > $25)

a necklace contains 36 gram of gold 72% of the mass of necklace is gold what is the mass of the necklace

Answers

Answer:

50 grams

Step-by-step explanation:

36 grams = 72%

→ Find 1% by dividing both sides by 72

0.5 grams = 1%

→ Times both sides by 100 to find 100%

50 grams = 100%

Step-by-step explanation:

Multiply 32 by 72 to get thw mass.

y = x - 2
-2x + 3y = -1
What is x and y?

Answers

Answer:

(5, 3)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/eliminationSolving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x - 2

-2x + 3y = -1

Step 2: Solve for x

Substitute in y: -2x + 3(x - 2) = -1Distribute 3: -2x + 3x - 6 = -1Combine like terms: x - 6 = -1Isolate x: x = 5

Step 3: Solve for y

Define equation: y = x - 2Substitute in x: y = 5 - 2Subtract: y = 3

slope is 2 and (−1, 6) is on the line; point-slope form

Answers

Answer:

y-6=2(x-(-1))

Or simplified:

y-6=2(x+1)

Step-by-step explanation:

use the formula: y-y1=m(x-x1)

In ΔUVW, u = 44 inches, ∠W=56° and ∠U=117°. Find the length of v, to the nearest inch.

Answers

Answer:

The length of v is 6 inches

Step-by-step explanation:

Here, we want to calculate the length of v to the nearest inch

The best way to go about this is to use the sine rule

But before we proceed, we need the measure of angle V

Mathematically, since we have a triangle

W + U + V = 180

This is the sum of angles in a triangle

56 + 117 + V = 180

V = 180-56-117

V = 7 degrees

so we proceed to use sine rule to get the length of v

Mathematically;

v/Sin V = u/Sin U

Thus;

v/sin 7 = 44/sin 117

v = 44sin 7/sin 117

v = 6.018

This is approximately 6 inches

Answer:

Step-by-step explanation:

what is 2 + 1 = ? is it 3 or is it 3 because i dont know

Answers

Answer: 4

Step-by-step explanation:

ANSWER

Explanation

2+1=3

Julie is about to ride a straight water slide. The length of the water slide itself is 20 meters. The splash pool at the end of the slide is 16 meters away from the base of the tower that leads up to the launching platform. How high is the launching platform?

Answers

Answer:

The launching platform height is 12 meters.

Step-by-step explanation:

PLS PLS PLS ANSWER ASAP FOR BRAINLIEST

There are 4 cookies and 12 cupcakes leftover at a bake sale. What is the ratio of cookies to cupcake? Your answer must be in simplest form.

PLS ANSWER ASAP

Answers

Answer:

1:3

Step-by-step explanation:

4/12 simplified is 1/3

for every one cookie leftover, there are 3 cupcakes leftover

xoxo, your highness...

Find the next term of the given sequence. 1.31, 2.54, 3.77, ...
4.90
5.00
5.10

Answers

The answer would be: 5.00
It’s adding by 1.23

Answer:

5.00

Step-by-step explanation:

Find the circumference and the area of a circle with radius 7ft .
Use the value 3.14 for pi, and do not round your answers. Be sure to include the correct units in your answers.

Answers

Answer:

C=43.96 ft.

A=153.86 ft.^2

Step-by-step explanation:

for circumference, use C=2πr

for area, use A=π[tex]r^{2}[/tex]

The circumference and the area of a circle with radius 7 feet are 43.96 feet and 153.86 square feet, respectively.

What is a circle?

A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle.

And the general formula of the circle,

(x – h)²+ (y - k)² = r²,

where (h, k) is the center and r is the radius of the circle.

Given:

A circle with radius 7 feet.

Then the circumference of the circle,

= 2πr

= 2(3.14)(7)

= 43.96 feet.

The area of the circle,

= πr²

= (3.14) (49)

= 153.86 square feet.

Therefore, circumference is 43.96 feet and area is 153.86 square feet.

To learn more about the circle;

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I am a 4-digit number, identity unknown.
1. My thousands digit is twice my tens digit.
2. My hundreds digit is 1 less than my tens digit.
3. My ones digit is not 0.
4. The sum of my digits is 11.
5. All of my digits are different.
What number could it be?

Answers

Answer:

4214

Step-by-step explanation:

four is twice the hundreds which is 2 and the tens(1) is less than two by one and 4 plus 2 plus 1 minus eleven is four

Solve for x.

x + 47 = -23
x =

Answers

Answer:

x = -70

Step-by-step explanation:

x+47=−23

Subtract 47 from both sides.

x+47−47=−23−47

x = −70

Answer:

x=-70

Step-by-step explanation:

x +47= -23

-47 -47

x= -70

Three more than a number times six is fifteen

Answers

Answer:

3 + 2=5

5 x 6 = 15?

On comparing the pairwise R - squared value between the three variables, we find that the line modeling the baking powder and the flour used can be expected to produce the most reliable predictions.

What is R - squared value ?

R-Squared value is a quantifiable analysis of how well the line of best fit (linear regression model) fits your data. A value closer to 1 (100%) is usually good.

The coefficient of determination - R - squared value is square of the correlation coefficient.

R - squared value of the relationship between baking powder and flour used = 0.953² = 0.908

R - squared value of the relationship between baking powder and butter used = 0.802² = 0.643

R - squared value of the relationship between flour and butter used = 0.693² = 0.48

Since, on comparing the R - squared values of the three relationships, we find that the R - squared value of the relationship between baking powder and flour used is largest. Thus, line of best fit between baking powder and flour is expected to produce the most reliable predictions.

Learn more about R - squared value here

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the product of d and 4

Answer:

150 + 4x = 330

4x = 180

x = 45

Step-by-step explanation:

Find the quadratic equation 3 and-5

Answers

Answer:

x^2 + 2x - 15 = 0.

Step-by-step explanation:

If you mean the equation with zeroes of 3 and -5 it is:

(x - 3)(x + 5) = 0

x^2 + 2x - 15 = 0.

Geometry question plz help me ?

Answers

i believe the answer is Y= -1x + 9 :)

HELP ME FAST NEED PLEAS THANK YOU

Answers

Answer:

Step-by-step explanation:

Emma is 10 years old. she asked her father how old he is. her father answered, "when you are my age I will be 70." how old is Emma's father.

Answers

Answer:

Step-by-step explanation:

Emma age: yE = 10 + x (x is timeline)

Father age: yF = A + x (x is timeline, A is Father age today)

in time x1: Emma will be A years old, and Father will be 70 years old.

yE (x1) = 10 + x1 = A

yF (x1) = A + x1 = 70

System of equations with unknown values: x1 and A.

substract equation 1 - equation 2:

10 - A = A - 70 ⇒ 80 = 2A ⇒ A = 40

So, father is 40 years old now

Emma's father is 40 years old

Let the age of Emma father be y

Age of emma = 10 years

In x years time;

Emma age will be 10 + xFathers age will be y + x

If in x1 years time, Emma will be y years old and his father will be 70 years old

Emma age: yE = 10 + x (x is timeline)

Emma's current age will be 10 + x = yHis father;s current age will be y + x = 70

Solving both equations simultaneously;

10 - y = y - 70

10+70 = y + y

80 = 2y

2y = 80

y = 80/2

y = 40 years

Hence Emma's father is 40 years old

Learn more on simultaneous equations here: https://brainly.com/question/16863577

Find the coordinates of the point where y-4x=1 crosses the y axis

Answers

Answer:

(a) (-1/4,0)

(b) k = (10-c)/2

Step-by-step explanation:

(a) A point passing through the y-axis is the same as finding the y-intercept.

[Move terms to right-hand side; y = mx + b form]

y = 4x + 1

[Find x, when y = 0]

0 = 4x + 1

-1 = 4x

-1/4 = x

At x = -1/4, y = 0 therefore the point: (-1/4,0) crosses the y-axis.

(b) To find the value of k in (k,10), we need to find x. Given y= 10 x=k c=constant

[Find x by plugging in known values]

Using y = 2x + c,

10 = 2k + c

10 - c = 2k

(10-c)/2 = k

Answer:

first one is -1,0

Step-by-step explanation:

i just did it

HELP FAST PLZ
Cha deposits $200 into an account that pays simple interest at a rate of 6% per year. Huch interest will he be paid in
the 3 years

Answers

Answer:

$236 in 3 years

Step-by-step explanation:

he would be paid $236 for the 3years

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