Mathematics High School

.
If y = x +3,
find the value of y when x = 2​

Answers

Answer 1

Answer:

Y=-4

Step-by-step explanation:

y = 3x + 2

y = 3(-2) + 2

y = -6 + 2

y = -4

Answer 2

Answer:

Y=5

Step-by-step explanation:

Y=2+3

So that why y is 5

Please rate my comment I am new and I would lie to help others thankyou ♥

Related Questions

X + 5x - 6 < 12 solve for inequality

Answers

Answer:

7

Step-by-step explanation:

x+5x<12

x+5x=12

12-5x

=7

7 divide by 1

=7

Solve 5n +3>27
sorry I’m not the best at maths so simple stuff like this makes my brain buffer

Answers

Hey there! [tex]\bold{5n+3>27}\\ \bold{SUBTRACT\ 3\ to\ BOTH\ SIDES}\\\bold{5n+3-3=27-3}\\\bold{24-3=24}\\\bold{Cancel\ out\ 3-3\ because\ that\ gives\ you\ 0}\\\bold{New\ equation: 5n>24}\\\bold{DIVIDE\ 5\ to\ BOTH\ SIDES}\\\bold{\dfrac{5n}{5}=\dfrac{24}{5}}\\\bold{Cancel\ out: \dfrac{5}{5}\ because\ that\ equals\ 0}\\\\ \\\\ \boxed{\boxed{\bold{Answer: n=\dfrac{24}{5}}}}\huge\checkmark[/tex]Good luck on your assignment and enjoy your day! ~[tex]\frak{LoveYourselfFirst:)}[/tex]

Which expression is equivalent to the measure of 24 in the image below?
5
6
3
1
2
4

Answers

I can’t see the image I’m sorry maybe it’s just me

Given a quadratic equation px^2 + 8x + 2 does not have real roots. Determine the range of the values of p.
[4 marks]

Answers

Step-by-step explanation:

For a quadratic equation to have no real roots, the discriminant b² - 4ac must be negative.

For px² + 8x + 2 = 0,

We have a = p, b = 8 and c = 2.

=> (8)² - 4(p)(2) < 0

=> 64 - 8p < 0

=> 8p > 64

=> p > 8

Hence the range for p is p > 8.

The ____ is the distance across a clrcle, going through the center.
radius
circumference
area
diameter​

Answers

Answer: diameter

Step-by-step explanation:

Answer:

The Diameter

Step-by-step explanation:

:)

Can someone help with this.

Answers

A
Both would be considered exterior angles.

The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters.
What is the volume of the pyramid in cubic centimeters?

Answers

Answer:

volume = 13500 [tex]cm^{3}[/tex]

Step-by-step explanation:

For a given pyramid, its volume can be determined by:

volume of pyramid = [tex]\frac{lwh}{3}[/tex]

Where: l is the base length, w is the base width and h id the height of the pyramid.

For the given question, l 30 cm, w = 30 cm and h = 45 cm.

So that,

volume = [tex]\frac{30*30*45}{3}[/tex]

            = [tex]\frac{40500}{3}[/tex]

            = 13500

volume = 13500 [tex]cm^{3}[/tex]

The volume of the pyramid is 13500 [tex]cm^{3}[/tex].

The volume of the square-based pyramid is [tex]13500cm^3[/tex]

The volume of a pyramid is given by

[tex]V=\dfrac{Ah}{3}[/tex]

where

[tex]A=\text{area of the square base}\\h=\text{perpendicular height}[/tex]

The area of the square base, [tex]A[/tex], is calculated as follows

[tex]A=side^2\\=(30cm)^2\\=900cm^2[/tex]

substitute the value of [tex]A[/tex], and [tex]h[/tex] ([tex]45cm[/tex]) into the volume formula to calculate the pyramid's volume

[tex]V=\dfrac{Ah}{3}\\\\=\dfrac{900\times 45}{3}\\\\=13500cm^3[/tex]

Therefore, the volume of the pyramid is [tex]13500cm^3[/tex]

Learn more about volume of pyramids here: https://brainly.com/question/1260835

y = -x + 3
What is the slope for this?

Answers

The slope for this equation is x=3

What is the slope of the graphed line?

Answers

Answer:

3/9

Step-by-step explanation:

3/9 because it goes up 3 right 9

What is the probability of the compound event of spinning a 3 on a 5 number spinner and landing on tails with a coin.​

Answers

Answer:

1/10

Step-by-step explanation:

1/5 to land on the spinner, and 1/2 to land on tails. Compound prob = we gotta multiply the probabilities so we get 1/10

Zack gets paid $8 an hour to babysit. The amount of money he earns depends on the number of hours he babysits.
Which is the dependent variable, and which is the independent variable

Answers

Answer:

$8 is the independent variable.  The amount he earns is the dependent variable.

Step-by-step explanation:

No matter what he is making $8 an hour is a constant.  While how much he makes is dependent on how much he works.

state if polygons are similar

Answers

Answer:

B

Step-by-step explanation:

I NEED HELP! PLZ! 20 POINTS. :)

Answers

Answer: i have no clue?

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

100 = 2x + 4y > 100 = 2x+40 > 60 = 2x> x = 30

c−7.6=−4

Help asp

Pleaseeeee

Answers

Answer:

c = 3.6

Step-by-step explanation:

Solve for x. Will mark brainliest for the correct answer.

Answers

Answer:

x= 100 degrees

Because the angles are vertical

5+4−6=24 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

its false

Step-by-step explanation:

5+4-6=24

9-6=24

3=24 3 does not equal to 24 so its false

Christina needed 8 pounds of flour to make cookies that will
serve 44 people. How many pounds of flour will Christina
need to feed 66 people?

Answers

Answer:

12

Step-by-step explanation:

4 pounds is 22 people

8 is 44

12 is 66

Justin is working with a microscope that magnifies objects to 175 times their actual size.

Part A

Enter a number in each box to determine the scale factor for the microscope.

Part B

The diameter of an amoeba cell is 0.30 millimeter. How big will the cell appear to Justin under the microscope?

millimeters

Part C

What is the percent increase of the area of the amoeba cell under the microscope?

%

Answers

Answer:

Part A

Scale factor

= 1 : 175

Part B

52.5 mm

Part C

99.4%

Step-by-step explanation:

Justin is working with a microscope that magnifies objects to 175 times their actual size.

Part A

Enter a number in each box to determine the scale factor for the microscope.

= 1 : 175

Part B

The diameter of an amoeba cell is 0.30 millimeter. How big will the cell appear to Justin under the microscope?

Scale factor =

1 : 175

Diameter of the Amoeba cell = 0.3mm

1mm = 175 mm

0.3mm = x

Cross Multiply

x = 0.3 × 175

x = 52.5 mm

Part C

What is the percent increase of the area of the amoeba cell under the microscope?

Increase = 52.5 mm - 0.3mm

= 52.2 mm

Percent increase

= 52.2/52.5 × 100

= 99.4%


Evaluate the expression when
C = 6 and d = 3.
(c- d)2 x 3

Answers

(6-3)2 x 3

(3)2 x 3

6 x 3

18

x+0.5y=1.5 solve for y

Answers

Answer:

Y = 3 - 2x

Step-by-step explanation:

4|m-n|
If m=-7 and n=2

Answers

you would first substitute -7 for m and 2 for n. It would look like this: 4| -7-2 | . we first solve the absolute value because it is the first step in PEMDAS or order of operations. -7-2 is equal to -9. Our equation should look like this now: 4 |-9| . we solve the absolute value portion, the absolute value of a negative number is the the same number but positive. the absolute value would be 9. (we just take the negative symbol off). we now have 4 x 9. This is equal to 36.

36 is the answer.

The cylinder shown here has a height of 7 centimeters and a radius of 4 centimeters. What is the area of the base of the cylinder? Express your answer in terms of 1. Do not include units (cm2) in your answer. Use pi to represent the n symbol. For example: 321 would be typed as 32pi​

Answers

Answer: 16pi

Step-by-step explanation:

What's 4.2,-3/5,220%,-4'5 in greatest to least order?

Answers

Answer:

4.2,220%,-3/5,-4'5

Step-by-step explanation:

4.2, 220%, -3/5, -4/5 (I hope that ‘ in -4’5 meant as a fraction )

y=x+4

2x+3y=17

SOLVE USING SUBSITUTION

Show work

Answers

Answer:

( 1, 5 )

x = 1

y = 1

Step-by-step explanation:

y = x + 4

2x + 3y = 17

Since they gave us the value of "y" we can use that and substitute it into the equation to find what "x" is.

2x + 3y = 17

2x + 3 ( x + 4 ) = 17

Distributive Property

2x + 3 * x + 3 * 4 = 17

2x + 3x + 12 = 17

Combine Like Terms ( 2x and 3x)

5x + 12 = 17

Subtract 12 on both sides of the equation

5x + 12 - 12 = 17 - 12

5x = 5

Divide by 5 on both sides to isolate the variable

5x/5 = 5/5

x = 1

Now that we have what "x" is, we can substitute that into one of the equations to get the value of "y"

y = x + 4

y = 1 + 4

y = 5

x = 1

y = 5

( x, y )

( 1, 5 )

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Help please! i have gymnastics soon

Answers

Answer:

A)

Step-by-step explanation:

The answer is A for sure

Which angle number is adjacent to angle to ZOKL?
​

Answers

Answer:

there aint no picture

Step-by-step explanation:

Question 5
1 pts
A 5 1/2 pound ham will serve 11 people. How many people will a
10-pound ham
serve? Set up a proportion and solve.
I

Answers

Answer:

intake manifold gasket :)

Step-by-step explanation:

it's pretty obvious.

answer:20

step by step: 4 1/2 feeds 9 people so just add

What is (56)(91)x -17

Answers

Omg love the drawings
You really good

Solve 7+2x over 3 = 5

Please and thank you! x

Answers

Answer:

x = 4

Step-by-step explanation:

(7 + 2x) / 3 = 5

Cross product

7 + 2x = 5 * 3

7 + 2x = 15

Subtract 7 from both sides

2x = 15 - 7

2x = 8

Divide both sides by 2

x = 8/2

x = 4

I rlly need help and the operation bby plssssss help me

Answers

AFE=35 degrees because 180=55+90+x

Answer:

∠ AFE = 35°

Step-by-step explanation:

∠ EFD = ∠ BFC = 55° ( vertically opposite angles )

Since BD is a straight line , then

∠ EFD + ∠ AFE + AFB = 180°, that is

55° + ∠ AFE + 90° = 180

∠ AFE + 145° = 180° ( subtract 145° from both sides )

∠ AFE = 35°

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