If x = 3, find the value of x2 + 2x

Answers

Answer 1

Answer:

15

Step-by-step explanation:

[tex]x^{2} + 2x = 3^{2} + 3 * 2 = 9 + 6 = 15[/tex]

Answer 2

3 · 2 = 6

2 · 3 = 6

6 + 6 = 12

Have a luvely day!


Related Questions

can someone help me

Answers

V = 85
All angles in a triangle equal to 180

What’s the slope of (4,1) and (5,-3)

Answers

Answer:

-4

Step-by-step explanation:

find the decimal equivalent of ¾ ounce to the thousandths place

Answers

0.75

Explanation:

Every 1/4 is 25. If you want to calculate them, then you're going to need 1/4 to find 25. In some other cases, 25, can also be written as another decimal. Such as, 4/100.

100/4 is 25. For example:

Woah! You have 3/4 of a dollar. You're really saving up money fast!

This example means that the person has 75 cents.

For an ounce, that would mean 0.04 pounds.

0
1
2.
3
у
8
1
-6
-13
What is an equation that describes the relationship?

Answers

always lovingalways sharingalways helpingalways beautiful and amazing

Step-by-step explanation:

that only know

what is larger a meter or 3feet

Answers

Answer:

Meter by a bit

A drill press operator requires 1 2/3 minutes to drill through 1 inch of steel. How long will it take him to drill through four-fifths inch of the same steel?

Answers

Answer: It will take him 1.3

Step-by-step explanation:

1 2/3 divided by 5 is 0.333

0.333 times 4 is 1.3

caroline wants to make cookies to bring to a party. she will need to double the recipe to have enough. how much of each ingrediant will she need. rewrite the recipe so that it will make 4 dozen cookies


recipes:
3/4 cup of peanut butter
1/2 cup vegetable shortening
1 1/4 cups girmly packed light brown sugar
3 tablespoons milk
2 3/4 teaspoon vanilla extract
1 large egg
1 1/2 cups flour
3/4 teaspoon baking soda
1/4 teaspoon salt

MAKES 2 DOZEN COOKIES

Answers

Answer:

1 1/2 cups of peanut butter

1 cup of vegetable shortening

2 1/2 cups grimly packed light brown sugar

6 tablespoons of milk

5 1/2 teaspoon vanilla extract

2 large eggs

3 cups of flour

1 1/2 teaspoon of baking soda

1/2 teaspoon of salt

Step-by-step explanation:

You just double everything by 2

The ingredients needed to make 4 dozen cookies are written below;

3/2 cup of peanut butter

1 cup vegetable shortening

2½ cups girmly packed light brown sugar

6 tablespoons milk

5½ teaspoon vanilla extract

2 large egg

3 cups flour

3/2 teaspoon baking soda

1/2 teaspoon salt

How much of each ingrediant will she need?

Recipe for 2 dozen cookies:

3/4 cup of peanut butter

1/2 cup vegetable shortening

1 1/4 cups girmly packed light brown sugar

3 tablespoons milk

2 3/4 teaspoon vanilla extract

1 large egg

1 1/2 cups flour

3/4 teaspoon baking soda

1/4 teaspoon salt

Recipe for 4 dozes of cookies: multiply the recipe for 2 dozen by 2

3/4 cup of peanut butter × 2

= 6/4 = 3/2

1/2 cup vegetable shortening × 2

= 2/2 = 1

1 1/4 cups girmly packed light brown sugar × 2

= 5/4 × 2

= 10/4 = 5/2 = 2½

3 tablespoons milk × 2

= 6

2 3/4 teaspoon vanilla extract × 2

= 11/4 × 2 = 22/4

= 11/2 = 5½

1 large egg × 2

= 2

1 1/2 cups flour × 2

= 3/2 × 2

= 6/2 = 3

3/4 teaspoon baking soda × 2

= 6/4 = 3/2

1/4 teaspoon salt × 2

= 2/4

= 1/2

Read more on recipe:

https://brainly.com/question/25936585

#SPJ3

Help please!! Geometry

Applying angle pair relationships

Answers

Answer:

m∠2 = 75°

m∠1 = 105°

Step-by-step explanation:

1. First, we should recognize that the angle that's 75° and ∠2 are alternate interior angles, formed on the interior of the opposite sides of the transversal. Alternate interior angles are congruent, so m∠2 = 75°.

2. Next, ∠2 and ∠1 are a linear pair, meaning their angle measures add up to 180°. Considering that m∠2 is 75 degrees, we just have to subtract 75 from 180, and we get the measure of ∠1.

[tex]180-75[/tex] [tex]105[/tex]

Therefore, m∠1 = 105°.

Does anyone know this answer for 5 and 6??

Answers

5) direct
6) inverse

Please help me with this question

Answers

Answer-angle DBC is 79, Angle ABD is 31 and angle ABC is 110

Explanation-

please help me ill give brainliest plz give me a simple answer​

Answers

Answer:

this is just trial and error. Answer is 3

(b) It takes 37 pounds of seed to completely plant a 4-acre field. How many pounds of seed are needed per acre?​

Answers

Answer:

9.25 lbs

Step-by-step explanation:

37 is the amount for 4 acres or 4a:

37  = 4a

Isolate and find a by dividing both sides by 4:

4a = 37

4a ÷ 4 = [tex]\frac{37}{4}[/tex]

a = [tex]\frac{37}{4}[/tex] or 9.25 lbs

Hope this helps!

Find the domain of f(x) = 3x for the range {-7, -1, 3, 11}.
=

Answers

Answer: i dont know

Step-by-step explanation:

What’s the answer to this question?

Answers

Answer:

x should equal 0

Step-by-step explanation:

How many four-digit numbers are there for which the product of the digits is equal to 240?

Answers

Answer: Its is 1

Step-by-step explanation:

During swim practice, an Olympic swimmer is required to complete three swimming intervals, in this order: warm-up freestyle, sprint freestyle, and cool-down breast stroke. After he completes each interval, he rests for three minutes.

Sketch a graph that represents the swimmers’ interval times with respect to swimming speed. Assign the - and -axes with appropriate labels. You may use description words instead of numbers to label the graph.

Answers

Answer:

Step-by-step explanation:

Find the angle of C

Answers

Answer:

8

Step-by-step explanation:

Answer:

∠ C ≈ 22.6°

Step-by-step explanation:

Since Δ ABC is right at B

Using the sine ratio in the right triangle

sinC = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AB}{AC}[/tex] = [tex]\frac{5}{13}[/tex] , then

∠ C = [tex]sin^{-1}[/tex] ( [tex]\frac{5}{13}[/tex] ) ≈ 22.6° ( to 1 dec. place )

I need help with this:

Answers

Answer:

if of all  parallel lines can't touch

Step-by-step explanation:

help me!!!!!!! please please please

Answers

Answer:

y and 65 is equal

y= 65°

....................

65 because it's all equal sides which means they equal the same :) hope this helped!

Solve the equation.
b^2 = 48

Answers

Answer:

b=6.92820323

Step-by-step explanation:

To find b, you would do the opposite from ^2 which is the square root. So the square root of 48. That is 6.92820323

Answer:

b ≈ 6.928 or 4√3

Step-by-step explanation:

b² = 48. To find b, we need to square root both sides (we are doing the opposite of squaring):

b = √48 = 4√3 or ≈ 6.928

Hope this helps!

Which of the following is correctly written in Standard Form?
A.) 6x - 2y=4
B.) y=6/5x + 4
C.) 6/5x + 3y= 8
D.) -6x + 3y= 8

Answers

D.) -6x+3y=8 is your answer

Answer:

A. 6x-2y=4

Step-by-step explanation:

(a) What additional information is needed to prove the triangles are congruent by ASA Postulate? Explain.
(b) What additional information is needed to prove the triangles are congruent by the HL Theorem? Explain.

Answers

Answer:

A)

The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

B)

H-L (Hypotenuse-Leg) Congruence Theorem. If the hypotenuse and leg in one right triangle are congruent to the hypotenuse and leg in another right triangle, then the two triangles are congruent.

Hope this helped

Find the value of y that will make these two triangles congruent:

Answers

Answer:

7

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

first you'd make 4y+12=32

get rid of 12           -12 =-12

                               4y=20

             divide        4 =4

                                y=5

A table of values for a linear function is shown below. What is the slope of the line represented by the values in the table?

Answers

The answer is M=15/12

Pencils cost 9p each.

How much do 28 pencils cost?

Answers

Answer:

252p or £2.52

Step-by-step explanation:

If one pencil is 9p, 28 pencils would be 9 × 28 which is 252p or £2.52.

Hope this helps!

Answer:

252p

Step-by-step explanation:

- Given: C is the midpoint of AE
C is the midpoint of BD
AE = BD
=
Prove: AC = CD

Answers

A midpoint is a point that bisects a line into two equal parts.

Given that  C is the midpoint of AE, hence;

AC + CE = AE ........ 1

Similarly, if C is the midpoint of BD, then;

BC + CD = BD................... 2

If AE = BD, then we will equate 1 and 2 to have:

AC + CE = BC + CD

Also since CE = BC, the equation becomes

AC + CE = CE + CD

AC = CD (Proved)

Learn more here;  https://brainly.com/question/21919418

mathematics
Solve k - 120= 768 Find the value of k

Answers

Answer:

[tex]k - 120 = 768[/tex]

add 120 to both sides of the equation

[tex]k - 120 + 120 = 768 + 120[/tex]

120 on the left hand side of the equation cancels therefore isolating the variable, k

[tex]k = 888[/tex]

The ratio of boys to girls in Mrs Ronaldo's math class 3 to 1. What percent of the class is girls?

Answers

Answer:  25%

Explanation:

Let's say this class has 3 boys and 1 girl. That means we have 3+1 = 4 students total. The percentage of girls is 1/4 = 0.25 = 25%

Find the equation of the line that passes through (1,4) and is parallel to3x+y+2=0

Answers

Answer:

y=-3x+7

Step-by-step explanation:

Step 1:

Make your thing into y=mx+b

3x+y+2=0 is the same as y=-3x-2

Step 2:

Plot your point at (1, 4)

Step 3:

Plot different points using your slope of rise 3 move 1 (remember you have a neg slope so keep that in mind)

Step 4:

Draw your line thru the points.

See below for an image. Hope that helped

Find the unknown sizes of angles in the following figure (I need step by step explanation and i might give brainliest):​

Answers

Answer:

x = 54° , y = 29°

Step-by-step explanation:

The sum of the 3 angles in Δ ABC = 180° then

x = 180° - (72 + 54)° = 180° - 126° = 54°

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle of Δ CQR , then

y + 25° = x

y + 25° = 54° ( subtract 25° from both sides )

y = 29°

Answer:

x = 54

y = 29

Step-by-step explanation:

First, find the magnitude of x. To do this, add the angles inside triangle ABC, which means to add 72 + 54 + x which is equal to 180 because of the rule, the sum of the interior angles of a triangle is 180. So, when the equation is simplified, you get the answer as x = 54. Then, find the magnitude of y. The magnitude of an angle drawn around a point on a straight line is always 360, and the magnitude of the same point, but only on one side of the straight line is always 180. So, we can say that the unnamed angle in the triangle CQR is 180-x, which means 180-54 because we got x as 54 earlier. Therefore, the magnitude of the unnamed angle is 126. Now, apply the same rule we used before, the sum of the interior angles of a triangle is 180, to the triangle QCR. 25 + 126 + y = 180. When this is simplified, 29 is obtained.

To find x,

 72 + 54 + x = 180 (the sum of the interior angles of a triangle is 180)

        126 + x = 180

126 + x - 126 = 180 - 126

                  x = 54

To find y,

25 + 126 + y = 180

         151 + y = 180

 151 + y - 151 = 180 - 151

                  y = 29

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