Mathematics High School

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Answers

Answer 1

Answer:

y = -2x + 3

Step-by-step explanation:

Let's just put the three points together.

(-1, 5) (-4, 11) (-7, 17)

First, let's find the slope with y2 - y1/x2 - x1

Plug in using (-1, 5) and (-4, 11)

11 - 5/-4 + 1 = 6/-3 (simplify)

-2 is the slope

Now plug in (-7, 17) in the equation to get b or the y-intercept)

y = mx + b

17 = -2(-7) + b

17 = 14 + b (subtract 14 on both sides)

3 = b

y = -2x + 3

Related Questions

Help please thank youuu

Answers

Answer:

Step-by-step explanation:

What is the 4th equivalent fraction to 1/2?

Answers

Step-by-step explanation:

For example, 2/4 and 3/6 both are equal to ½.

...

Equivalent Fractions Chart.

Unit Fraction Equivalent Fractions

1/2 2/4, 3/6, 4/8..

1/3 2/6, 3/9, 4/12..

1/4 2/8, 3/12, 4/16..

1/5 2/10, 3/15, 4/20,

Answer:

500/1000

Step-by-step explanation:

if you happen to simplify you will get 1/2. hope it helps.good day

what is the quotient of y and 11

Answers

Answer:

y ÷ 6 = 11

pls give me brainliest

Help!

An airplane takes off at an angle of 15 degrees with the ground. To the nearest 10 feet, how far has the airplane flown when it has covered a horizontal distance of 1800 feet?

Answers

Answer:

1738.67 feet

Step-by-step explanation:

Imagine a right angles triangle, with the base length of 1800ft and the angle between the base and the hypotenuse to be 15 degrees.

Now, we have to calculate the hypotenuse length, using trigonometric ratios

The ratio that links adjacent side and hypotenuse is cos

So, write an equation:

cos(15) = Adjacent/Hypotenuse = 1800/H

Rearrange to solve.

H = cos(15) x 1800 = 1738.67

This is the distance flown by the aeroplane .

Hope this helps

Mary typically walks 28 yards south on Pine Street and 45 yards east on Maple Avenue in order to get to school. How much shorter would his walk be if she took the shortcut shown below PLSSSS HELPPPP

Answers

B- 20 yards
Step-by-step explanation:
First you have to find the hypotenuse by finding the square root of 28 squares plus 45 squared which equals 53 yards. Next you have to add the two legs of the right triangle so we can subtract the shortcut length from that. So you have to do 28 plus 45 which equals 73 yards. 73 minus 53 is 20. So the answer is 20 yards.

you know that the y-ntercept point always has an x-coodinate of 0 what number can you substitute for x in the equation to find the y-intercept? show how to do this

Answers

Answer:

x=0

Step-by-step explanation:

Since y-intercepts lie on the y-axis, the x-coordinate must be 0.

Joshua invested $750 in an account paying an interest rate of 3\tfrac{1}{4}3 4 1 % compounded quarterly. Josiah invested $750 in an account paying an interest rate of 2\tfrac{5}{8}2 8 5 % compounded annually. After 18 years, how much more money would Joshua have in his account than Josiah, to the nearest dollar?

Answers

Answer:

Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.

Step-by-step explanation:

Giving the following information:

Joshua:

Initial investment (PV)= $750

Interest rate (i)= 0.0341/4= 0.008525

Number of periods (n)= 18*4= 72 quarters

Josiah:

Initial investment (PV)= $750

Interest rate (i)= 0.0285

Number of periods (n)= 18 years

To calculate the future value of each one, we need to use the following formula:

FV= PV*(1 + i)^n

Joshua:

FV= 750*(1.008525^72)

FV= $1,381.98

Josiah:

FV= 750*(1.0285^18)

FV= $1,169.74

Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.

Answer:

delta math says answer is 100

Step-by-step explanation:

qué número entero está entre -2 y 5

Answers

Answer:

1.5

Step-by-step explanation:

-2,-1,0,1,2,3,4,5

Le quitamos un número hasta llegar al medio. En el medio hay dos números, el 1 y el 2. Pues tenemos que buscar el promedio de los dos (1+2=3 y 3÷2=1.5).

Find the volume of this cone.
Round to the nearest tenth.
7in
= 4in

Answers

Answer:

117.3 in^3

Step-by-step explanation:

Volume of cone=π(r^2)h/3=π·42·7/3≈117.3 in^3

Answer:

117.3in³

Step-by-step explanation:

πr²[tex]\frac{h}{3}[/tex]

3.14x4²x[tex]\frac{7}{3}[/tex]= 117.29

117.29 to nearest 10th= 117.3in³

graph the line y=-1/4x-4

Answers

Answer:

Step-by-step explanation:

What is the area of

28
105
38.5
49

Answers

Answer:

105

Step-by-step explanation:

11×14= 154

7×7= 49

154-49= 105

Answer:

105 is ur answer!

you're welcome lol

Find the value of x*
(3x + 6)
48°

Answers

Answer:

48°+3x +6° = 90°

54°+x = 90°

x = 90°-54°

x = 36°

Those angles are complementary which means they add up to 90 degrees. So,
(3x + 6) + 48 = 90
Solve the equation for x, and x is 12.

1) Matthew can run of a mile in of an hour. What is the unit rate?

Answers

Brrnrb ururrururjbbrejejrjrjjrjrjjrjr rjjrjrjrjr

Alex has six candy bars he wants to cut into fifths. How many 1/5 size pieces will he have

Answers

Answer:

30 pieces.

Step-by-step explanation:

According to the word problem, Alex wants to cut all six of his candy bars into fifths.

5/5 = one whole candy bar.

If there will 5 pieces for every candy bar, we can multiply 5 by 6.

5 x 6 = 30.

There will be 30 of the 1/5 size pieces.

Could someone help me with these 2 questions

Answers

Answer:

Q5: S.A = 216 cm²

Q6: S.A = 254 cm²

Step-by-step explanation:

Q5:

Surface area of a cube = 6a²

a = 6 cm

Plug in the value of a

Surface area of the cube = 6(6²)

= 6(36)

S.A = 216 cm²

Q6:

Given:

Length (L) = 9 cm

Width (W) = 4 cm

Height (H) = 7 cm

Required:

Surface area

Solution:

Surface area of the rectangular prism = 2(LW + LH + HW)

Plug in the values

S.A = 2(9*4 + 9*7 + 7*4)

= 2(36 + 63 + 28)

= 2(127)

S.A = 254 cm²

What is Common denominator of 1/6 and 3/4? 30, 48, 20, or 64?

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Steven wants to buy a new video game. He needs at least $48. He has $26.00 saved. His brother said he would pay him $5 an hour to help him with his
homework. Which inequality can be used to determine the amount of hours, h, Steven must help his brother so that he has enough money for video game?

48 - 26h > 5
В.
5h + 26 2 48
С
26h + 5 2 48
D
26 +5h48

Answers

i think that the answer is C

Right triangles 1-2 and 3 are given with all their angle measures and approximate side lengths.

Use one of the triangles to approximate the ratio WY/WX

A. 0.34
B. 0.94
C. 1.06
D. 2.76

Answers

Answer:

0.34

Step-by-step explanation:

Considering the right-angled triangle XYW, an approximate ratio WY/WX is equal to 0.34. The correct option is A.

What is a right-angled triangle?

A right triangle is a triangle in which one of the angles is at a right angle or two of the sides are perpendicular, or more formally, an orthogonal triangle, formerly known as a rectangle triangle. The foundation of trigonometry is the relationship between the sides and various angles of the right triangle.

Considering the right-angled triangle XYW, we would apply the law of cosine to approximate the ratio WY/WX. Mathematically, the law of cosine is given by:

cos(θ) = Adj/Hyp

Where:

Adj is the adjacent side of a right-angled triangle.

Hyp is the hypotenuse of a right-angled triangle.

θ is the angle.

Substituting the given parameters into the formula, we have;

cos(θ) = WY/WX

cos(70) = 3.4/10

0.34 = 0.34.

Therefore, the correct option is A.

Answers

Answer:

=12y+5x

Step-by-step explanation:

Answer:

12y+ 5x

Step-by-step explanation:

9y + 3y + 5x

9y and 3y are like terms

9y+3y = 12y

12y+ 5x

Plot the square root of 9 on a number line

Answers

the answer would be 3. because 3•3=9, square root of 9= 3

Pamela is 10 years older than Jiri. The sum of their ages is 54. What is Jiri's age?

Answers

Answer:

Step-by-step explanation:

Please Help Jane has 10 cards Jane is going to make a row containing four cards how many unique ways can she ordered the row

Answers

it will be 151200 is the anwser

There will be a total of 5040 unique ways to make arrangements of 4 cards out of 10 so option (A) will be correct.

What are permutation and combination?

When the order of the arrangements counts, a permutation is a numerical approach that establishes the total number of alternative arrangements in a collection.

The number of alternative configurations in a collection of things when the order of the selection is irrelevant is determined by combination.

Given the 4 cards arrangement out of 10

npr = n! /(n-r)!

Here n = 10 , r = 4

10p4 = 10! /(10-4)!

10p4 = 10 × 9 × 8 × 7 × 6! /6!

10p4 = 5040

So there will be a total of 5040 ways to arrange the cards.

For more about permutation and combination,

https://brainly.com/question/13387529

#SPJ5

Find x in each triangle.

Answers

Answer:

x=5cm

Step-by-step explanation:

[tex]\sqrt{4^{2}+3^{2} } =5[/tex]

1.55y-(5y-17)/100=0.02

Answers

Multiply both sides by 100
1.55y -(5y-17)/100 * (100) = (0.02)*(100)
1.55y -(5y-17) = 2

Simply both sides of the equation
-3.45y + 17 = 2

Subtract 17 from both sides
-3.45y + 17-17 = 2-17
-3.45y = -15

Divide both sides by -3.45.
-3.45y = -15
-3.45 -3.45

y = 4.347826

pls help thank you:)

Answers

Answer:

|2x-5|<3

Step-by-step explanation:

.............

1. A triangle has two angles that measure 52 degrees and 31 degrees.
What is the measurement of the third angle?

Answers

Answer:

86 degrees

Step-by-step explanation:

Interior degrees of a triangle always add up to 180 degrees

What you would do is add the first two (52+31 = 84)

Subtract this number from 180 to get your remaining degrees

86 degrees

Find the smallest side of CDE?

Answers

Answer:

Step-by-step explanation:

The smallest side is opposite the smallest angle.

The smallest side is CE

Learning math. The Core Plus Mathematics Project (CPMP) is an innovative approach to teaching mathematics that engages students in group investigations and mathematical modeling. After field tests in 36 high schools over a three-year period, researchers compared the performances of CPMP students with those taught using a traditional curriculum. In one test, students had to solve applied algebra problems using calculators. Scores for 320 CPMP students were compared with those of a control group of 273 students in a traditional math program. Computer software was used to create a confidence interval for the difference in mean scores (Journal for Research in Mathematics Education, 31, no. 3, 2000).
Conf. level: 95%

Variable: µ(CPMP) — µ(Ctrl)

Interval: (5.573, 11.427)

a) What is the margin of error for this confidence interval?

b) If we had created a 98% confidence interval, would the margin of error be larger or smaller?

c) Explain what the calculated interval means in this context.

d) Does this result suggest that students who learn mathematics with CPMP will have significantly higher mean scores in applied algebra than those in traditional programs? Explain.

Answers

Answer:

D is the answer

Step-by-step explanation:

1.
Which statement best describes the graph of the
linear equation 2x + 2y = 2
A. The graph has a slope of 1 and a y-intercept
of 2.
B. The graph has a slope of 1 and a y-intercept
of 1
C. The graph has a slope of -1 and a y-intercept
of 2.
D. The graph has a slope of -1 and a y-intercept
of 1

Answers

Given:

The linear equation is:

[tex]2x+2y=2[/tex]

To find:

The statement that best describes the graph of the given linear equation.

Solution:

The slope intercept form of a linear function is:

[tex]y=mx+b[/tex] ...(i)

Where, m is the slope anf b is the y-intercept.

We have,

[tex]2x+2y=2[/tex]

It can be written as:

[tex]2y=2-2x[/tex]

[tex]y=\dfrac{2-2x}{2}[/tex]

[tex]y=1-x[/tex]

[tex]y=-x+1[/tex] (ii)

On comparing (i) and (ii), we get

[tex]m=-1,b=1[/tex]

Therefore, the graph has a slope of -1 and a y-intercept of 1. Hence option D is correct.

HELPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!

Answers

the answer is A : m=-1

Answer:

Step-by-step explanation:

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helppppppppppp meeeee