Show that the point (3, 7) lies on the line y = 2x + 1

Answers

Answer 1
Just plug in the point
x = 3 and y = 7
Y = 2(3) + 1
Y = 6 + 1
Y = 7
That’s how to prove it

Related Questions

Jared is trying to save up to buy a car. He has already saved $400. He makes $20 an hour (h) at his job.
Jared needs to have $1200 or more in order to puy the car he wants. How many hours will Jared have to
work in order to save enough money to buy the car?

Answers

Answer:

60 hours

**brianly pls

Step-by-step explanation:

The function his a quadratic function whose graph is a translation 7 units left and 9 units up function f(x) = x². What is the equation of h in vertex form and in the form y = ax²+bx+c?​

Answers

Warm Up For each translation of the point (–2, 5), give the coordinates of the translated point. 1. 6 units down (–2, –1) 2. 3 units right (1, 5) For each.

Can someone pls help me out

Answers

Answer:

B

Step-by-step explanation:

They aren't similar

196/70=2.8

140/49=2.85714285714 (or 2.9)

heyyyyyyyyyy kinda need help asap sooooooo plz :)

Answers

Answer:

C and D are the most accurate/correct answers

Step-by-step explanation:

A tank is in the shape of a cylinder 7 feet tall and 10 feet and radius find the exact surface area of the tank

Answers

Answer:

[tex]2036.75088022^{2}[/tex] or [tex]2036.8^{2}[/tex] rounded to the nearest tenth

Step-by-step explanation:

1. Find the area of the base and the top, which are circles.

Area of circle : [tex]\pi 10^{2}[/tex] = 986.960440109

There are 2 circles, soooooo....= 986.960440109 x 2 = 1973.92088022

2. Find the rest of the area of the cylander.

So, we have to find the circumference of the circle.

Circumference :2[tex]\pi[/tex]10 = 62.83

3. Multiply circumference by height.

62.83 x 7 = 439.81

4. Add all of the products.

439.81 + 1973.92088022 = [tex]2036.75088022^{2}[/tex] or [tex]2036.8^{2}[/tex] rounded to the nearest tenth

Seth is trying to find the unit price for a package of blank compact discs on sale at 10 for $5.49. Find his mistake and correct it.

Answers

Answer:

0.549

Step-by-step explanation:

He needed to flip the equation

Write x2 + 6x +13 in the form (x + a)

2 + b where a and b are integers.

Answers

Step-by-step explanation:

a and b are not integers

[tex] {x}^{2} + 6x + 13 = 0 \\ x = - 3 \pm2i[/tex]

[tex]a \: \in \mathbb{C}[/tex]

[tex]b \: \in \mathbb{C}[/tex]

Simplify the expression
(-2r^3 s^5)^5

Answers

For me I got -32r^15s^25

Please I need this done quickly Explain the answer please

Answers

When writing an equation of a line, keep in mind that you ALWAYS need two pieces of information when you go to write an equation:
1. ANY point on the line
2. Slope (m)
3. Y-intercept (b)

Once you have these two pieces of information, you plug the x and y values from your point and the slope (m) value into the slope-intercept form, y = mx + b.


Start by solving for the slope of each line. We need two ordered pairs (x, y) from each line to solve for the slope:

Offer A:
(0, 400) and (80, 700)

Let (x1, y1) = (0, 400)
(x2, y2) = (80,700)

m = (y2 - y1)/(x2 - x1)
m = (700 – 400)/(80 – 0) = 300/80 = 15/4

Therefore, the slope (m) for Offer A = 15/4

Next, we need the y-intercept. The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0. One of the points we used for solving the slope for Offer A reflects the description for the y-intercept, which is point (0, 400). The y-coordinate is 400–this is the y-intercept of the line.

Now, we can establish the linear equation for Offer A: y = 15/4x + 400

Do the same steps for the other offer:

Offer B:
(0, 500)) and (100,900)
Let (x1, y1) = (0, 500)
(x2, y2) = (100,900)

m = (y2 - y1)/(x2 - x1)
m = (900 - 500)/(100 – 0) = 400/100 = 4

Therefore, the slope for Offer B is 4.

Next, we need the y-intercept. For Offer B, the line crosses at point (0, 500). The y-coordinate, 500 is the y-intercept (b) of the line.

The linear equation for Offer B is:
y = 4x + 500



**NOTE: please double-check the coordinates that I used for solving the slopes of each line before using my inputs. I had a slight difficulty going through the coordinates of your graph because it’s a bit blurry (using my phone to write this post).

Please mark my answers as the Brainliest if you find my explanations helpful :)

please help me
Hamish buvs a new car for $20000
The car depreciates in value by 19% each year.
Work out the value of the car at the end of 3 years.
Give your answer to the nearest $

Answers

Answer:

The correct answer is $10,629

Step-by-step explanation:

Here is how I got it!

First, you will have to borrow the 20,000 from the word problem.

Next, multiply 20,000 with 0.81 with the power of 3

[tex]20,000*0.81^3=n[/tex]

The 3 is the number of years, n is the nearest $ answer.

--

First, do [tex]0.81^3[/tex]

[tex]0.81*0.81*0.81=0.531441[/tex]

(Wow, that's a crazy number!)

--

With 0.531441, multiply it with 20,000

[tex]20,000*0.531441=10628.82[/tex]

10,628.82 is technically (in money) $10,628.82 (with .82 being eighty-two cents).

--

Finally, it states to answer to the nearest $.

Just round up the .82 to 1 dollar which will just add one more dollar to 10,628

[tex]10,628[/tex] ⇒ [tex]10,629[/tex]

Add you $ symbol

With the result being: $10,629

Answer:

$10629

Step-by-step explanation:

First you have to work otu the percentage decrease:

100 - 19 = 81

81/100 = 0.81 (/ means divide)

Then you have to work the amount after 3 years:

Long Method

20000 x 0.81 = 16200

16200 x 0.81 = 13122

13122 x 0.81 = 10628.82

or Short Method

20000 x 0.81³ = 10628.82

Finally you round it to the nearest $:

10628.82 ⇒ 10629

What is the slope of a line that is perpendicular to the line y = -1/2x + 5

Answers

To find the slope of a line perpendicular to another line, we simply need to find the inverse negative of the slope of the first one. This makes sense if you visualize it on a graph or in your head.

The slope of the line given is -1/2.

To find the inverse negative we first inverse the number, then take then negatuve of that (or opposite order).

The inverse of -1/2 is, -2 (switch the numerator and denominator or do to the power of -1, ^-1).

The negative of -2 is, 2.

Therefore the slope of the line perpendicular to y = -1/2x + 5 is 2.

Need the answer for numbers 4,8,and 12
Here’s the answers they could be!
There’s 4 of the answers that won’t be used

539.68
-438.75
22.54
136.6
79.38
-65.9
167.5

Answers

9514 1404 393

Answer:

  4) -438.75

  8) 539.68

  12) 22.54

Step-by-step explanation:

Put the values in place of the corresponding variables and do the arithmetic.

__

4) 6xy = 6(-7 1/2)(9 3/4) = -6(7.5)(9.75) = -438.75

__

8) I = prt = $2442 × 0.085 × 2.6 = $539.68

__

12) I = prt = ($578)(0.0325)(1.2) = $22.54

2(h+3.5)=-11. What is the value of h

Answers

Answer:

The value of h would be nine

50 = -1/3b + 20

what is b?

Answers

To find b, start by subtracting 20 from both sides:

50 = -1/3b + 20

-20 -20

30 = -1/3b

Now isolate b by dividing both sides by -1/3:

30/(-1/3) = (-1/3b)/(-1/3)

-90 = b

b is 90!

hope this helps !!

> Simplify the expression: | - 8 - ( + io)
5
12
4.
5
12
4.

Answers

-79/100 and the decimal form is -0.79

A hot-air balloon descended 0.8 meters per second for 10 seconds. It
then climbed at 0.4 meters per second for 5 seconds.
What was the average rate of change in altitude per second?

Answers

Answer:

Step-by-step explanation:

we will use 0,8 in 10 seconds as thats the easiest.

for 10 to become 1 we move the decimel once to the right, 10/10

same will happen to 0.8,

10/10=1

0.8/10=0.08

The hot air-ballon climbs 0,08 meters per second

Translate this phrase into an algebraic expression.

17 increased by twice Gail’s savings.

Use the variable g to represent Gail’s savings.

Answers

Answer:23/18

Step-by-step explanation:


A list of numbers is made with the pattern: Start with 3, and multiply by 2 each time.
Here is the beginning of the list of numbers: 3, 6, 12, . . .
Explain how you could use "fill down" in a spreadsheet to find the tenth number in this list.

Answers

Step-by-step explanation:

A1 3

A2 =A1*2

this A2 cell we just fill down at least to the 10th line to A10.

A10 then will display the 10th number of the list.

overall, we can see that the 10th number must be

3×2⁹

as the first number is just a constant (the starting value), and each of all the other 9 numbers are multiplying by 2.

A line is drawn so that it passes through the points (-6,0) and (10,2). What is the slope of the line?

Answers

Answer:

hope you like my answer its -4

Please I need help I am so lost

Answers

Answer:

[tex] \sqrt{ \frac{25}{64} } \\ \\ \frac{ \sqrt{25} }{ \sqrt{64} } \\ \\ 25 \: equal \: to \: 5 {}^{2} \\ and \: 64 \: equl \: to \: 8 {}^{2} \\ \frac{ \sqrt{5 {}^{2} } }{ \sqrt{8 {}^{2} } } \\ = \frac{5}{8} [/tex]

so its + or - 5/8

Have a great day

(a + b + 1)2
– (a + b + 1)(x - 2) + (a + b + 1)

Answers

Answer: 5a + 5b + 5 - x(a + b)

Step-by-step explanation:

(a + b + 1)2 – (a + b + 1)(x - 2) + (a + b + 1)

2a + 2b + 2 - (ax - 2a + bx -2b -2) + (a + b + 1)

2a + 2b + 2 - ax + 2a - bx +2b +2 + a + b + 1

5a + 5b + 5 - x(a + b)

I need help with this equation

Answers

i think it would be 1

your video game scores are 64, -13, 73, -5, and 36. what were your lowest and highest scores

Answers

Answer: -13 and 64

ghjfgkhkf

Answer:

The lowest score was -13, and the highest score was 73.

Explanation:

No explanation needed.

HElp K 12 test! Will give brainiest PLS HELP!!!!

1. Which product is negative?


a. −6⋅(−7)⋅(−8)⋅0


b. −2⋅(−7)⋅12⋅(4)


c. −3⋅(−2)⋅(−4)⋅(−7)


d. 4⋅(−9)⋅(−3)⋅(−1)


2. Multiply.


−3⋅7



a. −21


b. −11


c. 11


d. 21


3.Multiply.


(−17)⋅(−6)



a. −102


b. −23


c. 23


d. 102


4. What is the product?


−5⋅(−3)⋅(−8)



a. −120


b. −16


c. 16


d. 120


5. What is the product?


4⋅(−9)⋅(−3)⋅(−1)



a. −108


b. −81


c. 81


d. 108

Answers

Answer:

1. d  2. a  3. d  4. a  5. a

Step-by-step explanation:

For 1, d is negative because, if there an even number of negatives, the answer will be positive. a. would have been correct, but you multiply that one by 0. 0 is not negative, so the answer has to be d.

2. is -21. You can multiply 3 times seven then make it negative, or simply add -7 together 3 times.

3. is d because the two negatives cancel each other out. Even numbers of negatives cancel each other out. therefore, 17 times 6 is 102.

4. -120 is the answer because there are 3 negatives. That is an odd number, so we know our answer is negative. -5 times -3 is 15, and 15 times -8 is -120.

5. is a because -1 times 4 is -4, then -4 times -9 is 36. 36 times -3 is then -108.

A bird weighs 10 N and is standing 3 m up whats its GPE

Answers

Answer:

30 J

Step-by-step explanation:

Given : -

Height ( h ) = 3m

Weight ( W ) = 10 N

To find : GPE = ?

Note : -

GPE is Gravitational Potential Energy.

It is expressed in Joules ( J ).

Formula : -

W = mg

mg = 10 N

Formula : -

GPE = mgh

GPE = 10 x 3

GPE = 30 J

Therefore,

A bird weighs 10 N and is standing 3 m, it's

GPE is 30 J.

Answer:

The answer is GPE = 300 Nm (Newton meters)

Step-by-step explanation:

The bird's mass weighs to 10 Newtons.

Presuming this took place on Earth, the gravitational force is 10 Newtons.

The bird is standing 3 meters above the ground.

Using the GPE formula (GPE = mgw,) the answer should be 300 Newton metres.

9/2 divided by 2 = 9/2 x2

True or false

Answers

Answer:

false

Step-by-step explanation:

the answer would be false

please help! Complete the function for this graph.

Answers

Answer:

y = - 2|x - (-2)| + 1  

Step-by-step explanation:

The general form of an absolute value function is y = a|x – h| + k, where a ≠ 0.

The value of a determines whether the graph opens up or down.  If a is negative, the graph opens down. This holds true, as the value of a = -2

The given graph for the absolute function has a vertex (h, k) of (-2, 1). This is the maximum point of the graph.  

Therefore, the missing values on the given equation is the value of the vertex.  It has to be written as  y = - 2|x - (-2)| + 1 because the equation on your given problem is formatted according to the general form of the absolute value function,  y = a|x – h| + k.  

What is 49.5x divided by 88

Answers

Answer:

0.5625

Step-by-step explanation:

Answer:
0.5625x

Isn’t really much of a step by step, in your calculator just put in the numbers divided by eachother then add the “x”.

And ice cream company feels containers with 64 oz of ice cream the acceptable percentage of error and filling each ice cream container is 1.5% select all the expressions that could be used to find the greatest number of ounces of ice cream each container can hold

Answers

Hold times 2 2 more ice cream dived by 3 the answer is 26x6

the abc store sold 3 ukuleles for 30$. what is the unit price?

Answers

Answer:

$10 dollars per ukuleles

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

90 dollers and zero cents

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