Mathematics High School

Please help I need to catch up on school.

Please Help I Need To Catch Up On School.

Answers

Answer 1

Answer:

D: y=-2x+5

Step-by-step explanation:

Answer 2

Answer:

y=-2x+5

Step-by-step explanation:

The basic formula you go by for these problems is y=mx+b.

For this example, b is 5 and m is -2.

This would make the problem y=-2x+5

Related Questions

Can someone help me calculate angles? P3

Answers

Answer:

the little box would indicate that it is a 90 degree angle.

Answer: 50

Step-by-step explanation: to find CXF all you need to do is 90-40

(21÷7)×4 What is the Answer?

Answers

Answer:

12

Explanation:

21 ÷ 7 × 4

21 ÷ 7 = 3

3 * 4 = 12

Answer:

12

Step-by-step explanation:

So..... multiplication can be done at the same time as division, so we don't have to worry about the order of operations :)

so, 21 divided by 7 is 3

then, you multiply 3 by 4, which is 12

and btw, I also found another methoddddddddddddd

you can do, 21 times 4, which is 84, divided by 4 times 7, which is 28

84 divided by 28 is 3

then you multiply it by 4, it gives 12

and btw, that also works for other numbers too!!!!!!!!!!!!

Nicole wants to paint this figure on her wall in her bedroom. If paint cost $4.59 per square unit, how many square feet of paint will it take to cover this figure?

A.27.54
B.6 sq ft
C.8 sq ft
D.5sq ft

Answers

Answer: C.8 sq ft hope this helps:)

please help, can't understand.

Answers

Step-by-step explanation:

Angle ACO = 140° - x. (Sum of angles in a triangle is 180°)

Now draw the line OD. The triangles ODC and OBC are congruent via the SSS congruence property. (OD and OB are both the radius of semicircle, common side OC, and side CD = CB is given)

Hence Angle BCO = Angle ACO = 140° - x.

Since triangle OBC is an isosceles triangle with OC = OB, this means that Angle CBO is also 140° - x.

By Exterior Angle theorem,

we have Angle AOC = Angles BCO + CBO

=> x = (140° - x) + (140° - x)

=> 3x = 280°

=> x = 280°/3. (B)

karen purchased a DVD player on sale. The original selling price was ​$159.92 The sale price was ​$179. 30 find the percent markdown

Answers

Answer:

Step-by-step explanation:

Answer:

19.26%

Step-by-step explanation:

Given the original selling price of DVD player as ​$179.30 and the new sale price to be ​$144.77, the the first step in finding the percent​ markdown is to take the difference between the original selling price and the sale price to give $179.30 - $144.77 = $34.53

Percent markdown = original selling price- new sale price/original selling price × 100%

Percent markdown = $34.53/$179.30 × 100%

% markdown = 19.26%

Pls help me with this picture included find the 30th term

Answers

I think the answer is 62 ? I have never seen this kind of math?

Answer:

The answer is 143

Step-by-step explanation:

Because if you subtract 152-149 it equals 3 and same with 149-146 so it means that the sequence is going down by 3 each time. Hope that helps!

Pleaseee help me with this!!!

Answers

Answer: The last one  ([tex]8^{2}[/tex])

Step-by-step explanation:

Here’s why:

the 2 on top of the 8 is called an exponent and it means that you need the multiply 8 times itself two times (8 x 8), and if you know your times tables you know that 8 x 8 is 64 not 16

Help, I need to know the area of this.

Answers

Answer:

300ft^2

Step-by-step explanation:

Will give the brainliest, please help me and correct answers:

So I have to work out the area of a parallelogram but I’m confused on which is the base, the height can be inside and outside as well so is 5cm the base while 7cm the height right?

Answers

Answer:

Right, 6 cm is the height. 5 cm is the base

Step-by-step explanation:

Compare the values.
9x 102 is
?
times as much as 3 * 10-2,
6 x 10°
3 x 10-4
6 x 104
3 x 104

Answers

Answer: its 3 x 10^4

Step-by-step explanation:

i got it correct on my test

Answer: 3 x 10^4

so the third option hope this helps.

Maria's bill for lunch was $12.25. How much would her tip be if she leaves a 20% tip?

Answers

Answer:

$2.45

Step-by-step explanation:

First, we find how much 20% of 12.25 is:

we can convert 20% directly to a decimal:

20% = 0.2  

Then we find

20% of 12.25 = 0.2 x 12.25 = 2.45

So Maria's tip would be $2.45

Given the function f described by f(z)= 3z^(2) +10z-6, find the function values.

f(-9)=

Answers

Answer:

Step-by-step explanation:

f(z)=3(-9)^2+10(-9)-6

f(z)=3(81)-90-6=243-96=147

The diagonal of a rectangle is 17 units long, and one side is 15 units long.
How many units squared is the area of the rectangle?

Answers

120
Use the Pythagorean theorem a^2+b^2=c^2
17^2-15^2=64 Square root of 64 is 8
8x15 is 120

is -9 greater than -10

Answers

Answer:

yes -9 Is greater than -10

A. 8
B. 12
C. 2
D. 4
I don’t know this please help

Answers

Answer: I think it’s 8

Step-by-step explanation: because it can’t be the other ones

The answer is A .8
The answer is A.

What is the value of C in this formula?

Answers

52 is the value for c

6r-5=1=8r-24 help pls

Answers

Answer:

r=9

Step-by-step explanation:

Need some help with Geometry

Answers

Answer:

x = 42 degrees

y = 14 degrees

Step-by-step explanation:

Solve for x

180 - 96 = 2x

2x = 84

x = 84/2

x = 42

Solve for y

180 - 94 - 44 = 3y

3y = 42

y = 42/3

y = 14

An organization has a goal to raised $50,000 for a scholarship fundraising project. They have raised 60% of their goal. What percentage is remaining to reach their goal? I don’t understand this one tho

Answers

Answer:

So if 60% of the 100% they have hopes to acheive is done, 40% of the remaining funds are left to achevie. I know, such questions are so simplistic you wonder if they are tricking you

Step-by-step explanation:

Enter an algebraic equation for the word sentence. Use x as your variable.
90 is five times a number.
The equation is

Answers

Answer:

5X=90

Step-by-step explanation:

5x=90

5x=90

5    5

x=18

please help (picture above)

Answers

Answer:

y= 45

x=9

Step-by-step explanation:

plug 5x into y since y=5x:

5x=4x+9

-4. -4

x=9

5(9)=45

Answer:

x=9 y=45

Step-by-step explanation:

y=4x + 9.......(1)

y= 5x.........(2)

Substitute 5x for y in equation 1.

5x= 4x + 9

5x - 4x = 9 (Collect like terms 5 and 4 have x in common if +4 crossover it changes to -4)

x = 9

substitute 9 for x in equation 2.

y = 5(9)

y = 5 x 9(multiplication)

y = 45

Is that right? I’m not sure if I’m correct or wrong

Answers

Answer: no its one solution

Step-by-step explanation:

Find the x and y intercept of the line. x = 2 need in 10-15 minutes PLEASE

Answers

Answer:

x-intercept: (2,0)

y-intercept: This line doesn't cross the y-axis.

The grizzly bear population in Yellowstone National Park in 1970 was about 270. Over the next 35 years, it increased by about 115%. What was the population in 2005?

Answers

Answer: 311 bears

Step-by-step explanation:

Population increased by 115% in the 35 years from 1970 to 2005.

Population in 2005 is:

= 270 * 115/100

= 310.5

= 311 bears

Answer:

581

Step-by-step explanation:

270x%115=310.5

We have to round 310.5 to the nearest So 310.5 will be 311  

So if it increased by 115%  we have to add the 115% to 270

270+311= 581  

By the 2005 the population will be 581

find the value of x if √x-5=0.

​

Answers

Answer:

√x=√25.......x=5

Step-by-step explanation:

√25-5=0

5-5=0

Answer:

√x-5=0

√x=5

squaring both side

√x²=5²

x=±25

Elena needs to prove angles BED and BCA are congruent. Provide reasons to support each of her statements.
B
m D
E
E
А
С
Angles BED and BCA are congruent.

Answers

In triangle BDE and triangle BACAngle B = Angle B (Common) Angle BDE = Angle BAC Therefore, triangle BDE is congruent to triangle BAC (AA similarity) Hence proved.

Hope it helps :)

Math division help if can

Answers

Answer:  A. 2 17 /21

Step-by-step explanation:you divide them.You change both mixed number to improper fraction.which is 236  /9  divide  28 /3.You do kcf which stand for KEEP CHANGE FLIP.YOU KEEP 236/9 and change Divide to mulipction sign and flip 28/3 to 3/28.You multiply236  /9  and  28/3 which gives u 708  /252.After that u simply it to 59 /21 .Lastly change back to mix number which is 2 17/21.

Hope it helps bye ;)

What is the least common denominator of the equation 2/9x+2/3 x=7?
O 3
09
O 27
O 63

Answers

Answer: Nine I think

Step-by-step explanation: maybe because 3x3 would equal 9 and 9x1 equals 9


What is the value of x in this equation?
2x + 2 = -52
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.

Answers

The above equation equals -27

15 Points :p
Which of the following expressions would give a sequence with a first term of 2 and a common difference of 5? 2 - 5 n 2 n - 5 5 n - 3 5 n + 2

Answers

9514 1404 393

Answer:

  5n -3

Step-by-step explanation:

Try n=1 in each expression and see which gives you a first term of 2.

  2-5n = 2-5·1 = -3

  2n -5 = 2·1 -5 = -3

  5n -3 = 5·1 -3 = 2 . . . . . this is the expression you want

  5n +2 = 5·1 +2 = 7

__

Additional comment

For a common difference of 5, the coefficient of n must be 5. The second answer choice fails on that count also.

Answer:

5n-3

Step-by-step explanation:

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