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

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

Hello everyone how are ya‘ll help plz

23x+4=30

Answers

Answer:

= 26/23

Step-by-step explanation:

I am really confused

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Answer:

the answer is (B) 66 inch .

Can some one help quickly. Please show work

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Answer:    the answer is  2

Step-by-step explanation:

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].

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

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

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!!

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

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

Someone please help me with this question

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

what type of triangle is ABC,give reasons ​

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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

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

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]

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........

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

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

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

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.

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

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

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

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

Answers

Answer:

Step-by-step explanation:

in which way do you want it factorized?

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!

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

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

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

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!! :))

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

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