question number 4 please help

Question Number 4 Please Help

Answers

Answer 1

Answer:

The correct answe is H , if yu sub the x value in each of the equations yu should get y

Answer 2
Linear Equations

Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex]

m = the slopeb = the y-intercept (the value of y when x=0)

To find the slope of a line (m):

Find the coordinates of two points that fall on the linePlug them into the following formula:[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex] where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the coordinates of the points

To find the y-intercept of a line (b):

Plug the slope into [tex]y=mx+b[/tex]Plug in one of the pointsSolve for b

Solving the Question

We're given a set of coordinates for this linear relation.

First, solve for the slope.

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

⇒ Plug in any two points that fall on the line (in this case we used (-2,-7) and (2,1)):

[tex]m=\dfrac{1-(-7)}{2-(-2)}\\\\m=\dfrac{1+7}{2+2}\\\\m=\dfrac{8}{4}\\\\m=2[/tex]

Therefore, the slope of the line is 2. Plug this into [tex]y=mx+b[/tex]:

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

Now, let's solve for the y-intercept (b)

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

Plug in any of the given points:

[tex]1=2(2)+b\\1=4+b\\b=-3[/tex]

Therefore, the y-intercept of the line is 3. Plug this back into [tex]y=2x+b[/tex]:

[tex]y=2x-3[/tex]

Answer

[tex]y=2x-3[/tex]


Related Questions

Suppose a city with population 300,000 has been growing at a rate of 8% per year. If this rate continues, find the population of this city in 10 years.

Answers

So the 8% of 100 is 8 & times it by 3 which is 24 then times it by 1000 which is 24000 so add it to the population, it will be 324000

HELP HELPP! GIVING LOTS OF POINTS!!!! nonsense-report

Answers

We can organize the data by making a board (i can't draw one so i'll do it in another way)

First, we have to see how many different values are there :
19 ; 21 ; 22; 23 ; 24 ; 25 ; 26 ; 27 ; 28 ; 29 ; 30 ; 31 ; 32 ; 34 ; 35 ; 36 ; 37 ; 39 ; 40 ; 43 ; 44 ;45 ; 46

Frequency :
19 : 1 time
21 : 3 times
22 : 1 time
23 : 1 time
24 : 5 times
25 : 3 times
26 : 2 times
27 : 4 times
28 : 3 times
29 : 2 times
30 : 2 times
31 : 3 times
32 : 2 times
34 : 2 times
35 : 4 times
36 : 2 times
37 : 1 time
39 : 1 time
40 : 1 time
43 : 2 times
44 : 1 time
45 : 1 time
46 : 1 time
47 : 1 time

(that was so long, now you can construct the board yourself right xd)

Fill in the missing values in the table. Scale Distance on map Distance in miles 1/4 inch = 1 mile) 2.5 inches 10 miles 1/2 inch = 1 mile 4.5 inches miles 1 inch = 1 mile 3.0 inches 3 miles 1 inch = 5 miles inches 30 miles 1 inch = 10 miles 3.0 inches miles 1 inch = 15 miles 2.0 inches miles ​

Answers

The missing values are 9 miles, 6 inches, 30 miles, and 30 miles, respectively.

Rule of Three

It's a math tool for solving problems about proportion. You can relate more than 2 variables and from the proportion, it's possible to find an unknown number.

The Line 02 of the Table

1/2 in= 1 mile, from the rule of three, you can find the distance in miles.

                        1/2 inch ------------- 1 mile

                        4.5 inches --------- x miles

Applying cross multiplication

1/2x=4.5

x=4.5 *2

x=9 miles

                               

The Line 04 of the Table

1 in= 5 miles, from the rule of three, you can find the distance in miles.

                        1 inch ------------- 5 miles

                        x inches --------- 30 miles

Applying cross multiplication

5x=30

x=6 inches

The Line 05 of the Table

1 in= 10 miles, from the rule of three, you can find the distance in miles.

                        1 inch ------------- 10 miles

                        3 inches --------- x miles

Applying cross multiplication

x=3*10 miles

x=30 miles

The Line 06 of the Table

1 in= 15 miles, from the rule of three, you can find the distance in miles.

                        1 inch ------------- 15miles

                        2 inches --------- x miles

Applying cross multiplication

x=2*15 miles

x=30 miles

Read more about the rule of three here:

brainly.com/question/24514897

Answer:

9 miles, 6 inches, 30 miles, and 30 miles

Step-by-step explanation:

What he said. give him crown.

and right triangle sin (40 - x)° equals cos(3x)° degrees what is the value of x.

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Let's solve ~

[tex]\qquad \sf  \dashrightarrow \: \sin(40 - x) = \cos(3x) [/tex]

[tex]\qquad \sf  \dashrightarrow \: \cos\{90 - (40 - x ) \} = \cos(3x) [/tex]

[tex]\qquad \sf  \dashrightarrow \:90 - (40 - x) = 3x[/tex]

[tex]\qquad \sf  \dashrightarrow \:90 - 40 + x = 3x[/tex]

[tex]\qquad \sf  \dashrightarrow \:3x - x = 50[/tex]

[tex]\qquad \sf  \dashrightarrow \:2x = 50[/tex]

[tex]\qquad \sf  \dashrightarrow \:x = 25 \degree[/tex]

The hypotenuse of a right triangle measures 16 cm and one of its legs measures 9 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.

Answers

[tex]\sf\huge\underline{\star Solution:-}[/tex]

Given that:Hypotenuse of a right triangle = [tex]\sf\blue{16cm.}[/tex]One side (leg) = [tex]\sf\blue{9cm.}[/tex]

To Find:Measure of another side(leg).

Solution:-

[tex]\rightarrow[/tex] As we know that,

[tex]\sf{A^2 +B^2 \:=\: C^2}[/tex](Pythagoras Theorem)

So, using this formula we can find measure of another side(leg).

[tex]\rightarrow[/tex][tex]\sf{A^2 +B^2 \:=\: C^2}[/tex](putting the value of both given side of triangle)

Here I am putting the value of hypotenuse in C because it is the longest side of triangle.

[tex]\rightarrow[/tex] [tex]\sf{9^2 +B^2 \:=\: 16^2}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{81 +B^2 \:=\: 256}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{B^2 \:=\: 256-81}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{B^2 \:=\: 175}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{B \:=\: \sqrt{175}}[/tex]

[tex]\rightarrow[/tex] [tex]\sf{B\:=\: 13.22(approx)}[/tex]

Therefore, measure of another side (leg) of the triangle = [tex]\sf\purple{ 13.22(approx).}[/tex]

____________________________________

Hope it helps you:)

7. Mattie ran across a circular part. The
circumference of the park is 92.31 feet.
How far did Mattie run?

Answers

Answer:

29.39

Step-by-step explanation:

So, the formula for circumference is 2(3.14)r.

If the question is looking for the diameter,

You don't have to include the r, you can just do d(3.14)=92.31

You can divide 92.31 by 3.14 and you get 29.39

PLSSS HELP ME
(5x5)/[10x22]-4\52

Answers

Answer: 21/572

[tex]\frac{5.5}{10 . 22} - \frac{4}{52}[/tex]

The dots stand for multiplication

Could someone explain each one of these questions (apart from a) step by step? Thanks!

Answers

part c:

100-3t = 64

100-64 = 3t

36 = 3t

t = 12

part d:

1/2 (x-5) = 9

x-5 = 9 / (1/2)

x-5 = 18

x = 23

When in algebra, you can do the same to both sides. Here is a simple example that will hopefully make things easier.

What additional information could be used to prove that the triangles are congruent using AAS?
Select two options

Answers

Answer:

Step-by-step explanation:

We have two congruent angles, so we need a pair of congruent sides. This is satisfied by options 2 and 3.

what is the answer to two plus two divided by 3 times 6

Answers

Answer:

8

Step-by-step explanation:

2 + 2 = 4

4 / 3 = 1.3

1.3 x 6 = 8

Step 1: 2+2
Step 2: 4/3
Step 3: 1.3 x 6= 7.8

How many milliliters are in 12.9 liters?

Answers

Answer:

12,900

Step-by-step explanation:

12.9 x 1000 = 12,900

Answer:

12,900. That is because you must multiply the amount to find the converted value, in this case, 12,900.

Mike invests $4000 in an account that earns 3% annual interest. How much money will there be in the account after 3 years if the interest is compounded semi-annually?

Answers

Answer:

$4786.72

Step-by-step explanation:

4000(1+0.03/6)^12(3)

Use this formula to find the compounded interest after each 6 months, which would have an interest rate used to increase the amount of money.

What is the cost of 10.0 gallons of gasoline priced at 1.449 per gallon?

Answers

14.49 all you have to do is 10x1.449 and you get your answer

Answer:

14.49

Step-by-step explanation:

thats all folks i don't know why though

What is the solution to this system of equations?

Answers

Answer:

Replace the y, z, and x values with real numbers .

0 - 3 = -3

5 + 4 = 9

3 + 4 = 7

Please answer this with an explanation

Answers

Answer:

35 feet

Step-by-step explanation:

when the flare is fired , time t = 0

substitute t = 0 into the equation

f(0) = - 10(0)² + 60(0) + 35 = 0 + 0 + 35 = 35

Answer:

the correct answer would be 35  feet

Step-by-step explanation:

hope this helps

How to find a surface are?

Answers

     The surface area is found by finding the area of all shapes creating the surface, and then adding them together.

Example:

     If we have a 5 x 5 x 5 cube, we will find all six sides. Since 5 x 5 is 25, and 25 x 6 = 150, the surface area of this example cube will be 150 units².

     Why the x 6? Since it is a cube all the sides have the same area, and a cube has 6 sides.

DOES ANYONE KNOW THIS ?? Its not 20 or 16 and the layers that can be put into the box is 4 number 2 thank u so much i will make u brainliest if its right

Answers

Answer:

4 layers

128 cm²

0.1 m

Step-by-step explanation:

Height of chocolate = 0.5 cmHeight of open box = 2 cm

Layers of chocolate

Height of box / Height of chocolate2 / 0.52 x 24 layers

Volume of box

8 x 8 x 264 x 2128 cm³

Length of river on map

x : 10,000 = 1 : 100,000x = 0.1 meters

Answer:

128

Step-by-step explanation:

Volume of an open box= 2(b x h) + 2(l x b) + 2(l x h)

now here the length and breadth are same, so both are 8, and there is no need to put 2 before (l x b) as it is an open box

(8 x 8) + 2(8 x 2) + (8 x 2)

A trigonometry student stands 25 meters from a building and measures the angle of elevation to the top of the building as 30â°. how accurate does her angle measurement have to be if she wants her propagated percentage error in estimating the height of the building to be no more than 5%?

Answers

Using the slope concept, it is found that the angle measurement has to be within 1.2º of 30º.

What is a slope?

The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.

In this problem, considering the horizontal distance and the actual angle, the following equation is applied to find the actual height:

[tex]\tan{30^\circ} = \frac{h}{25}[/tex]

[tex]h = 25\tan{30^\circ}[/tex]

h = 14.43.

For an error of 5%, the bounds of h are as follows:

[tex]h_{min} = 0.95 \times 14.43 = 13.71[/tex]

[tex]h_{max} = 1.05 \times 14.43 = 15.15[/tex]

Hence, the angles will be given by:

[tex]\tan^{\alpha} = \frac{13.71}{25}[/tex]

[tex]\alpha = \tan^{-1}{\left(\frac{13.71}{25}\right)}[/tex]

[tex]\alpha = 28.8[/tex]

[tex]\tan^{\alpha} = \frac{15.15}{25}[/tex]

[tex]\alpha = \tan^{-1}{\left(\frac{15.15}{25}\right)}[/tex]

[tex]\alpha = 31.2[/tex]

Hence the angle measurement has to be within 1.2º of 30º.

More can be learned about the slope concept at https://brainly.com/question/18090623

12 Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the functions with their periods. y=-3tan3.r y=6sin3r 2.1 y=-4cot y=2009 y=-žsec 37 3 27 3 kas 3 10T Reset Next​

Answers

Answer:

Just use a calculator

Step-by-step explanation:

It's easier :)

What’s the distance between the points (-3,10)and(6,-2)

Answers

Answer:

i think its 20

Step-by-step explanation:

Which scatterplot shows a linear association?

Answers

Answer:

B

Step-by-step explanation:

A linear association means the function is a relation that can be shown with a line.

The first scatterplot is in the form of a parabola, and parabolas are the quadratic function form, meaning it cannot be linear.

Next, the second scatterplot goes diagonally, in a straight line. If we were to connect the dots using a line, then it would be a linear association, meaning that B is the correct answer.

What is the sum of the geometric sequence 2, 8, 32, if there are 8 terms?

Answers

Answer:

43690

Step-by-step explanation:

hope u understand it

Your final balance on an investment of $130 invested at 8% was $182.00. For what period of time did you invest?​

Answers

Answer:

17.5 months.

Step-by-step explanation:

17.5 months hopes this helps

Can the sides of a triangle have lengths 7, 15, and 18?

Answers

Answer:

Yes it can!

Step-by-step explanation:

The 2 shortest sides how to be bigger than the longest sides when combined

7 + 15 = 22 and 22 is bigger than 18. So yes you can make a triangle with those side lengths.

Answer:

Step-by-step explanation:

If this is a right angle triangle then no, it is impossible since this set of lengths is NOT a pythagorean triple.

If this is a non-right angle triangle then yes.

(0,3) and (5,13) what is the answer

Answers

Answer:

if you're asking for the slope the answer is 2

Step-by-step explanation:

i hope your asking for slope

Pleas help. 5 Divided by 1/8

Answers

[tex]\dfrac{5}{\tfrac 18} = 5 \times \left(\dfrac 18 \right)^{-1}= 5\times 8 = 40[/tex]

Answer:

40

Step-by-step explanation:

[tex] \frac{5}{1} \div \frac{1}{8} [/tex]

[tex] \frac{5}{1} \times \frac{8}{1} [/tex]

[tex]40[/tex]

1
unit.
A rectangular prism with a volume of 6 cubic units is filled with cubes with side lengths of
2
1
How many
unit cubes does it take to fill the prism?
2
NI

Answers

Answer:

48

Step-by-step explanation:

If the side length is 1/2, cube it to find the volume of the cube. Then divide 6 by 1/8. Remember that if you are dividing a fraction, you multiply by the reciprocal, in this case 8. 6 times 8 is 48.

Do number 5 pleaseee

Answers

Answer:

A

Step-by-step explanation:

16 × 2 = 32

20 × 2 = 40

hshsjbdjidjeje

Find the value of x
Find the measures of the following angles

Answers

Answer:

Step-by-step explanation:

PLEASE HELP !!!!! I HAVE TO TURN THIS IN BY TOMORROW

Answers

Answer:

Step-by-step explanation:

Given the equation: y = 8 * 2ˣ, substitute the x-values in the table for x in your equation, to find the y-values.

For x = -1

[tex]y = 8 * 2^x\\y=8*2^{-3}\\y=8*\frac{1}{2^3} < ==negative\ exponent\ property: x^{-n}=\frac{1}{x^n}\\y=8*\frac{1}{8}\\y=8*0.125\\y=1\\\\(-1,1)[/tex]

For -2:

[tex]y = 8 * 2^x\\y=8*2^{-2}\\y=8*\frac{1}{2^2} < ==negative\ exponent\ property: x^{-n}=\frac{1}{x^n}\\y=8*\frac{1}{4}\\y=8*0.25\\y=2\\\\(-2,2)[/tex]

For -1:

[tex]y = 8 * 2^x\\y=8*2^{-1}\\y=8*\frac{1}{2^1} < ==negative\ exponent\ property: x^{-n}=\frac{1}{x^n}\\y=8*\frac{1}{2}\\y=8*0.5\\y=4\\\\(-1,4)[/tex]

For 0:

[tex]y = 8 * 2^x\\y=8*2^0\\y=8*\frac{1}{2^2} < ==zero\ exponent\ property: x^0=1\\y=8*1\\y=8\\\\(0,8)[/tex]

For 1:

[tex]y = 8 * 2^x\\y=8*2^1\\y=8*2\\y=16\\\\(1,16)[/tex]

For 2:

[tex]y = 8 * 2^x\\y=8*2^2\\y=8*4\\y=32\\\\(2,32)[/tex]

For 3:

[tex]y = 8 * 2^x\\y=8*2^3\\y=8*8\\y=64\\\\(3,64)[/tex]

Hope this helps!

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