Find the value of the expression x(2x+y) when x= 2 and y =5

Answer:

B and C

Step-by-step explanation:

Just not linear lol

Answer:

Step-by-step explanation:

The conversion factor is 454 grams / pound. That makes the answer D.

All of the answers have the right digits. It's the number of zeros that cause the problem.

Answer:

450 grams is the closest metric weight of 1 pound which in actuality is 453.592 gram.

Answer:

The equation is a contradiction: it has no solutions

Step-by-step explanation:

5(+2)−6(2−)=+10(+1)

5(x+2)−6(2−x)=x+10(x+1)5(x+2)-6(2-x)=x+10(x+1)5(x+2)−6(2−x)=x+10(x+1)

Solve

Distribute

5(+2)−6(2−)=+10(+1)

5+10−6(2−)=+10(+1)

Rearrange terms

Distribute

Subtract the numbers

Combine like terms

Distribute

Combine like terms

Add

2 to both sides of the equation

Simplify

Subtract 11 from both sides of the equation

Simplify

Result

0=12

Answer:

x = -11  (sorry if this is wrong)

Step-by-step explanation:

5(x+2)-6(2-x)=10(x+1)

5x +10 -12x + 6x = 10x + 10

-1x + 10 = 10x + 10

-10x        -10x

-11x + 10 = 10

        -10    -10

-11x = 0

----    ----

-11     -11

x = -11

Answer:

(i) Not true for any cases, (ii) True for some cases, (iii) True for some cases, (iv) True for all cases.

Step-by-step explanation:

Now we proceed to check each statement in terms of concepts of function from Analytical Geometry:

(i) Two lines that have the same y-intercept and the same slope intersect at exactly one point.

False, two lines that have the same y-intercept and the same slope intersect at every point. Both lines are coincident. (Answer: Not true for any cases)

(ii) Two lines that have the same y-intercept intersect at exactly one point.

Conditionally true, two lines that have the same y-intercept intersect at exactly one point if and only if slopes are different. (Answer: True for some cases)

(iii) Two lines that have the same slope do not intersect at any point.

Conditionally true, two lines that have the same slope do not intersect at any point if and only if they share the same y-intercept. (Answer: True for some cases)

(iv) Two lines that have two different slopes intersects at exactly one point.

True, two lines that have two different slopes intersects at exactly one point no matter what y-intercepts they have. (Answer: True for all cases)

Answer: 18 units long

Step-by-step explanation:

In the diagram, it looks like line segment AW is 6 units long and WB is 12 units long. Because of parts-whole postulate (the whole is equal to the sum of its parts), you can add AW and WB's lengths together. 6 + 12 = 18, so the length of line segment AB is 18 units long.

Answer:

Reference Point

Step-by-step explanation:

The answer is reference point. This is because reference point is used to determine if an object is in motion or if it has changed is direction.

Thus, reference point has to be a value of zero for us to use it to determine if an object has moved.

Answer:

-21

Step-by-step explanation:

put in -3 where x is

-3^2  9

-9-12 = -21

Answer:

-21

Step-by-step explanation:

We know that  [tex]f(x)=-x^2-12[/tex]  and we also know that [tex]f(x)=f(-3)[/tex]. Therefore, you will have to substitute x with -3.

Calculations:

[tex]f(x)=-x^2-12[/tex]  

[tex]f(-3)=-(-3)^2-12[/tex]

[tex]-9-12=-21[/tex]

Answer:

Yes

Step-by-step explanation:

If you graph it and you go to the point (2,9) then the line will pass it

Answer:

yes

Step-by-step explanation:

Answer:

look I have sent you the answer of your question.

This trinomial can be factored as two binomials.

So setup two sets of parenthses.

8x² can be factored as 8x · x or 4x · 2x

and -3 can be factored as +3 · -1, -1· +3, -3 · +1, or +1 ·-3.

If the middle term in the original trinomial is even,

try pairs of even factors first if you have that option.

In this case, we have a 4x and a 2x so let's try those first.

Let's do this with all the factors of -3.

So our first possible answer could be (4x + 3)(2x - 1).

Since the product of the outer terms, -4x, plus the product of the inner, 6x,

doesn't add to our middle term, this pair doesn't work.

Now let's try (4x - 1)(2x + 3).

The product of the outer terms, 12x, plus the product of the inner, -2x,

equals the middle term in our original trinomial, this pair works.

So our answer is (4x - 1)(2x + 3).

Answer: 86m cubed

Step-by-step explanation:

The Volume of green house is 54 m³

A rectangular prism is a three-dimensional shape that has two at the top and bottom and four are lateral faces.

The volume of a rectangular prism=Length X Width X Height

A company makes a greenhouse that is shaped like a rectangular prism on bottom and a half cylinder on top.

Given;

Base = 3m x 9m

Height of house = 2 m

Find: Volume of green house

Volume of green house = 3m x 9m x 2m

Volume of green house = 54 m³

Therefore, the Volume of green house is 54 m³

Learn more about a rectangular prism;

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Answer: -20a - 14

Step-by-step explanation:

Given

-10a + -5 + -4a + -9 - 6a

Rephrase expression

-10a - 5 - 4a - 9 - 6a

Put like terms together

(-10a-4a-6a)-(5+9)

Combine like terms

-20a - 14

Hope this helps!! :)

Please let me know if you have any questions

Answer: area mean multiply

Step-by-step explanation:

Answer:

76 feet (Just put 76 in the answer box)

Step-by-step explanation:

Knowing the perimeter of a rectangle is 2l + 2w, multiply 2 by 3.5. Then multiply 2 by 4.5, and add them together.

2(3.5) + 2(4.5)

The two products would be 7 and 9 respectively.

7 + 9 = 16 feet of fencing for 1 rabbit pen.

We have 2 pens, so multiply 16 by 2.

The rabbit pens need 32 feet of fencing.

(Alternatively you could have done 2(2(3.5 + 4.5)).

2(2(8))

2(16)

32 ft of fencing (rabbit pens))

Now, add 12 and 10. Then multiply that by 2.

2(12 + 10)

2(22)

The garden needs 44 feet of fencing.

Now add 32 and 44 to get the total amount of fencing needed.

32 + 44

The rabbit pens and the garden need 76 feet of fencing. (Just put 76 in the answer box as the unit (feet) is already given.)

Answer:

10

Step-by-step explanation:

Answer: 10

Step-by-step explanation:

3 1/3 * 3 = 10

Answer:

268 but the closest is 104 so D

Step-by-step explanation:

4*4*4*4+12=268

Answer:

12 is the right answer

Step-by-step explanation:

Answer:

We know that a kilometer is 1000 meters, and that a meter is 1000 millimeters. Therefore, 6 km is (much) larger than 54,000 mm

Step-by-step explanation:

I hope my answer help you

Answer:

It is A

Step-by-step explanation:

It starts from origin

The first graph represent the volume of water in a cylinder as a

function of its height.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

The first graph with a straight line passing through the origin could represent the volume of water in a cylinder as a function of its height.

This is because the formula for the volume of a cylinder is V = πr²h, where r is the radius and h is the height.

If we keep the radius constant and vary the height, we can see that the volume of the cylinder increases linearly with the height. In other words, the volume is directly proportional to the height.

Since the line passes through the origin, this indicates that when the height is zero, the volume is also zero.

This is consistent with the fact that a cylinder with zero height has zero volume.

Hence, the first graph represent the volume of water in a cylinder as a

function of its height.

To learn more on Three dimensional figure click:

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Answer:

$13.75 as the tip

Step-by-step explanation:

25% of 55$ = $13.75

Answer:

He would have $31.5 after one year. If you multiply 30 by 1.05 (which represents 5% interest) you get 31.5

Step-by-step explanation:

Answer: D, 6km/hr.

Step-by-step explanation:

Heather can finish a 12-kilometer race in 2 hours, and now we have to find how many kilometers she can ride/run at in 1 hour.

How many hours can Heather run in 1 hour? To solve that, we can use the equation 12 ÷ 2.

12 ÷ 2 = 6.

Therefore, if Heather keeps her pace constant, then her rate will be 6km/hr, or D.

Answer:

-14

Step-by-step explanation:

Well, the equation would be 8+2n=-20

2n=-28

n=-14

Answer:

2x + 8 + = 20

8 + 12 is 20 so x must be 6 i think

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I'm pretty sure it's B, (please let me know if I'm wrong.)  

Colinear means to be on the same straight line, which they are.  

Coplanar means to be in the same plane, which they appear to be as well.

So yeah I'm pretty sure it's B.  

Answer:

5280 cubic inches

Step-by-step explanation:

V= l * w * h

V= 18 * 12 * 20

V= 4320 cubic inches

Then do the first measurement subtracted by the second one because it wants to know the difference.

9600 - 4320 = 5280 cubic inches

Answer:

The answer is 2

Step-by-step explanation:

By using (0,_3) and (2,1)

Then

[tex]m = \frac{1 - ( - 3)}{2 - 0} = \frac{4}{2} = 2[/tex]

Answer:

hehejejejjenene

Step-by-step explanation:

sjjshenebjsjsjwjjejenene .....

hope it helps

Answer:

Try (x+8) and the other wons

Step-by-step explanation: