Mathematics High School

i need help please thanks​

I Need Help Please Thanks

Answers

Answer 1
I think the right answer is 20 miles per hour because
At the hour 2 Kevin drove 90 miles from home and Brian drove 110 miles and
110-90=20

Related Questions

The dimensions of a right triangle are shown in the diagram.

What is the length of the missing side, to the nearest tenth of a centimeter?

Answers

Answer:

18.4 cm

Step-by-step explanation:

For this problem, you would use Pythagorean Theorem or a^2+b^2=c^2. Don't forget that the c in the formula is always your hypotenuse or the longest side of the triangle. The a and the b are always the legs of the triangle. (It doesn't matter which leg is which letter) The hypotenuse is also always across from the 90 degree angle. Picture the 90 degree angle as an arrow pointing to the hypotenuse.  In this case, the hypotenuse (or c) is 20.7 cm. Now all you have to do is plug and chug! I hope this helps you and thanks for asking your question!!

Solve the equations.
[tex]\sqrt{x^{2} } =14[/tex]
[tex]\sqrt{x^{2} } =17[/tex]
[tex]\sqrt{y^{2} } =5[/tex]

Answers

Answer:

[tex]x=\pm14\\x=\pm17\\y=\pm5[/tex]

Step-by-step explanation:

Generally, equations in the form [tex]\sqrt{x^2}=c[/tex] where [tex]c[/tex] is some constant, would have [tex]x=\pm c[/tex] as its solution.

This is because the square of a number is always positive regardless of the sign of [tex]x[/tex].

Find the equation of the line, whose slope is 5 and x- intercept is 2

Answers

Answer:

Step-by-step explanation:

when x intercept is points given, then y = 0

So far, you have y = 5x + b where b = the yintercept

x = 2

y = 0

0 = 5x + b

0 =5 * 2 + b

0 = 10 + b             Subtract 10 from both sides.

-10 = b

Equation: y = 5x - 10

help pls need help show your solution and then graph​

Answers

Answer:

Step-by-step explanation:

We can use the quadratic formula or factor, This looks hard to factor so we should use the quadratic formula.

ax^2 + bx + c

so

a=4

b=-9

c=2

you can try it by hand or use this:

https://www.calculatorsoup.com/calculators/algebra/quadratic-formula-calculator.php

you get x=2 and x=0.25 these are the x intercepts (where Y is zero and where the graph crosses the x axis)

so mark x=2 and x=0.25 with a dot on a number line and you can draw a straight line between them since that is the part of the graph that is below the x axis (because the equation has <0) it is a positive parabola because the "a" value is positive and the presence of a "b" value means part of the graph will be below the x axis

I am really confused

Answers

Answer:

the answer is (B) 66 inch .

Hello everyone how are ya‘ll help plz

23x+4=30

Answers

Answer:

= 26/23

Step-by-step explanation:

what type of triangle is ABC,give reasons ​

Answers

Answer:

ABC in the given figure is an equilateral triangle, its all sides are equal. AB = BC = CA. (i) A triangle in which all the three angles are acute is called an acute angled triangle

The sum of two numbers is 88. The larger number is 16 more than the smaller number. What is the smaller number?

Answers

Answer: please mark me brainliest

28

Step-by-step explanation:

you half 88 you get to 44 and then you add 16 that is 60. 88 subtract 60 is 28

True of False? The blue radius is perpendicular to the green chord

Answers

Answer:

Step-by-step explanation:

true i think

The statement that the blue radius is perpendicular to the green cord is false.

What are radius and chords?

The radius of a circle is any line segment connecting the centre of the circle to any point on the circle. The chord of a circle is a line segment joining any two points on the circle.

From the complete question,

The blue radius does not bisect the green chord

This means that the blue radius and the green chord do not meet at 90 degrees

Since both lines do not meet at 90 degrees, then they are not perpendicular

Hence, the statement that the blue radius is perpendicular to the green cord is false

Read more about radius and chords at:

brainly.com/question/1869643

#SPJ7

graph the line y=3(x+3)+4

Answers

Answer:

Check out the image below the explanation.

Step-by-step explanation:

1. First, let's simplify the equation.

[tex]y = 3(x) + 3(3) + 4[/tex] [tex]y = 3x + 9 + 4[/tex] [tex]y = 3x + 13[/tex]

2. Since the equation is y = 3x + 13:

The y-intercept is 13.For every 1 unit we go to the right, we go 3 units up.

Now, here's the graph!

2.9. What is the equation of a line parallel to 3x + 4 = y and passing through
(4,-2)?
A. 3x + 10 = y
B. 3x – 14 = y
C. -*-=y
D. --*x+10=y

Answers

Hello! (:

3x+4=y

We want to convert it into slope-intercept form:

y=mx+b

Our equation looks like this:

y=3x+4

Now, parallel lines have the same slope. So if one line has a slope of 3, the line parallel to it has a slope of 3 as well.

Now, we have the slope and a point, so we write the equation in point-slope form:

y-y1=m(x-x1)

y-(-2)=3(x-4)

y+2=3x-12

y=3x-12-2

y=3x-14

Hence, that is the required equation, Hope it helps you!

If you have any question or query, feel free to ask! (:

~An excited gal

[tex]SparklingFlower (:[/tex]

The sum of a number times 7 and 24 is at most -18. Use the variable x for the unknown number.

Answers

Answer:

unknown number=-6

Step-by-step explanation:

Let x be the unknown number.

7x+24=-18

      7x=-18-24

          =-42

        x=-42÷7

          =-6

Hence, unknown number=-6.

Answer:

Step-by-step explanation:

10n + 27 >= -18

Which of the following represents a combination reaction?
Select one:

a.
AB --> A + B

b.
AB + CD --> AD + BC

c.
A - B --> C

d.
A + B --> AB

Answers

Answer:

option a is the correct.

I think

5/2=? ?/? ill give brainliest

Answers

Answer:

Okay so you jsut gotta divide

5/2 is basically saying 5 divided by 2, the bar basically means divide by.

Now 5/2 is 2.5

2.5 into a mixes is 2 1/2

Simplify the linear expression.

−2/3a+1/8−1/6a−3/4

Enter your answer as simplified fractions in the boxes.

Answers

Answer:

-5/6a - 5/8

Step-by-step explanation:

i took the k12 quiz

Ok i just learned this ;-;

Answers

Answer:

x-axis = (18, 0)

y-axis = (0, 12)

Quadrant I = (4.5, 10.6)

Quadrant II = (-15, 21)

Quadrant III = (-3/4, -4 1/9)

Quadrant IV = (3, -7)

Step-by-step explanation:

Hope this is helpful.

Factorise -x^2-20x-100

Answers

Answer:

(x+10)(x+10) or (x+10)^2

Step-by-step explanation:

Divide by -1 first

a=1

b=20

c=100

Since a*c whose sum is b...

1*100=100

10*10=100 and adds to 20

The answer is (x+10)(x+10) or (x+10)^2

Elena sold ice cream at the fair. One day she sold one-third of the gallons of vanilla ice cream that she had, and then gave away 3 more gallons of vanilla ice cream. At the end of the day, she had one gallon of vanilla ice cream left. Write an equation to find how many gallons of vanilla ice cream Elena had at the beginning of the day.

Answers

Answer:

Nn seem xjjxjjxncjicucdjxklzkjcjfnfklcocjcnndjcicjcnmdjdjxjxjcjcjckckckkckcmcjdjcjceujesjkxmcmckkckckckckckck

Step-by-step explanation:

Fand the most part in 2? the best. I think you are awesome. edit! edit on your post? edit! I cut off a bit of payer

Liam invests $3,670 in a savings account at his local bank which gives 1.9% simple annual interest. He also invests $2,040 in an online savings account which gives 5.5% simple annual interest. After five years, which one will have earned more interest, and how much more interest will it have earned, to the nearest dollar?

Answers

Step-by-step explanation:

Given:

Investment P₁ = $3670Investment P₂ = $2040Rate of interest r₁ = 1.9% SIRate of interest r₂ = 5.5% SITime t = 5 years

Find amount of interest in both investments:

I₁ = P₁r₁t = $3670*(1.9/100)*5 = $348.65I₂ = P₂r₂t = $2040*(5.5/100)*5 = $561.00

As we see the online savings account earns more interest and the difference is:

$561.00 - $348.65 = $212.35 ≈ $212

8. Evaluate: f(x) = x2 + 1
g(x) = 5 - x
a. (f+g)(x) =
b. (f-g)(x) =

Answers

Answer:

(f+g)(x)=2x+1+5 - x

(f+g)(x)=x + 6

(f - g)(x)= 2x + 1 - (5- x )

(f - g)(x)= 3x - 4

can someone factorize 7x+xz+7z+z2 for me?

Answers

Answer:

Step-by-step explanation:

in which way do you want it factorized?

Someone please help me with this question

Answers

This is a right triangle. Right triangles have one right angle.

Which of the following closet to a yard in length?
(a).0.1m
(b).0.01m
(c).1m
(d).100m
Could you answer my question ⁉️​

Answers

Answer:

option. b

Step-by-step explanation:

.0.01m........

pls answer this for meeee​

Answers

Answer:

7 hamsters at 5 pesos each and 13 hamsters at 8 pesos each

Step-by-step explanation:

5x + 8y = 139

x + y = 20

x = 20 - y

5x + 8y = 139

5(20 - y) + 8y = 139

100 - 5y + 8y = 139

100 + 3y = 139

3y = 139 - 100

3y = 39

3y/3 = 39/3

y = 13

x + y = 20

x + 13 = 20

x = 20 - 13

x = 7

I need help, answering this!

Answers

Answer:

The length is 15.71 feet.

Step-by-step explanation:

Write the slope-intercept form of the equation of the line through the given point.
Through: (-4, -5) and (4, 2)

Answers

Answer:

y = mx + b.

y = 7/8x - 3/2

Step-by-step explanation:

Hope this helps!! :))

Given the diagram below find the value of x

Answers

Answer:

x = 15

Step-by-step explanation:

a straight line has the angle of 180 degrees

so when added together both angles should equal 180

4x - 17 + 137 = 180

then combine like terms

4x + 120 = 180

and then subtract

4x = 60

and then divide

x = 15

and that is your answer

Help me with questions 3 and 4 please​!

Answers

Answer:

Question 3: x0 = y1

your basically adding 9 for y!

Question 4: x0 = y1

your adding 1 for y!

Hope this helped!

Answer:

3.)

y=3X + 1

slope is 3

y intercept is 1

4.)

y=(1/2)X+1

slope is 1/2

y intercept is 1

Can some one help quickly. Please show work

Answers

Answer:    the answer is  2

Step-by-step explanation:

HELP ASAP FOR BRAINLIST CROWN
Which function has the greater y-intercept? What is that value?

-10


4


10


3


16


Function A; 1.5


Function B; 30


Function B; 23


Function B; 3


8


2


Function A; 1


Function B; 1


Function A; 9

Answers

Answer:

function A;1

function B:30

Other Questions
How did Ancient Rome influence Westernsociety? The cases which deal with theft, cheating and robbery are called 3044 in a base 5 to a base 10 Why do doctors give fluids when losing blood but not water ?Help me balance CHCl3 + O2 = CO2 + H2O + Cl2 The speaker in the poem "The Choice" chooses money over love. - True False PLEASE HELP!!!!!!!!!!!!!!! Select four -ER verbs from this section that describe things you enjoy doing daily, such as eating, reading, etc.Once you have selected four verbs, type the verbs and conjugate them with the following subject pronouns: yo / t / l OR ella / nosotros/ ustedes, ellos OR ellas. (Each verb would be conjugated with 6 subject pronouns).-ER verbs from the section: Aimer, Changer, Demander, couter, Fabriquer, Habiter, Jouer, Manger. why was captain john white delayed in returning to the colony roanoke with supplies 1. Please get an . form and then fill it out. (apply) A. application B. apply C. to apply D. appllication If you start off with 1220 and you take away 100 then add 50 how much do you have What is the value of y=3x1 when x=4? condition necessary for osmosis to takes place What by wind and rain left no soil for plant life in the Badlands. what is the answer to 1/2 + 1/3 = From the window of an airplane, you can see a farmhouse directly below. If the plane is traveling at an altitude of 9 kilometers, how far from the farmhouse will the airplane be after it has traveled 12 kilometers at the same altitude? What is the above image an example of? Describe its purpose and importance in history. When a machine increases speed or force, another factor must have ________to do so. * Can I work at a place that exposes stuff Im allergic too?For example I just applied to work at Jamba Juice but Im allergic to most fruits like apples, peaches, cherries, and pomegranates.Would it be safe? Show how you derived your pro forma income statement calculations and final pro forma cash flow analysis. Thus, all of your calculations should cascade to eventually solving for a final solution, which is your net present value (NPV) and Internal Rate of Return (IRR) results. Once you have the pro forma model created, please briefly describe your results and how various changes in unit volume, price, and costs can change your valuation results. This analysis includes the 20% increase and decrease in sales volumes. Barton PC is a small-cap computer company located in Wilson NC. The company operations officer, Nancy Simpson, is also part owner in the company. Nancy started the company in the mid-90s as a producer of small laptop computers. Over the years, laptop computer usage has slowly declined as consumers have moved to more mobile-centric devices. To capture this growing trend, Barton PC created the Barton-1 smartphone. The phone comes in just one model and has generated excellent sales. As with all modern electronics however, technology changes rapidly and the company is concerned sales will fall as new and existing competitors enter the market. To ensure continued robust sales, Barton PC has spent $750,000 to develop a new prototype smartphone with new and enhanced features. To more fully understand the expected sales of the phone, a marketing study for $200,000 was also conductedNancy estimates the new phones variable manufacturing cost will be $205 per unit. Fixed costs for the project are estimated to run $5.1 million per year. The estimated 5-year sales volumes for the new phone are as follows: 64,000, 106,000, 87,000, 78,000 and 54,000 per year. Based on market research, Nancy feels the phone can be sold for $485 per phone. However, Nancy also finds there will be considerable upstart costs to start production. New equipment will be purchased for $34.5 million and will be depreciated on a seven-year MACRS schedule. It is believed the market value of the equipment in 5 years will be fully depreciated. Net working capital for the phone will be 20% of sales and will occur with timing of the cash flows each year. In this case there are no startup costs for networking capital. Changes in net working capital will thus start when sales occur in year 1. The company has a 35% corporate tax rate and a required return on capital of 12%. To ensure the phone creates value for the company, Nancy has requested a valuation analysis for the project. Specifically, she would like to see the net present value (NPV) and internal rate of return (IRR) for the phone over the 5-year expected sales. She would also like to see how these metrics change with various unit sales scenarios or 20% less and 20% more in unit volume sales. The story elements of the story cusi's secret(wonders)