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PSYCHO15rus [73]
4 years ago
7

Which polynomial is equivalent to (2h − 3k)(h + 5k)?

Mathematics
1 answer:
Luba_88 [7]4 years ago
3 0

Answer:

2h^{2}  + 7hk - 15k^{2}

Step-by-step explanation:

Distribute (2h − 3k)(h + 5k).

2h^2 + 10hk - 3hk - 15k^2

2h^2 + 7hk 15k^2

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I need help on this help help I’ll give out some money
frozen [14]
<h3>a) Never</h3>

{All angles of a rectangle are right}

<h3>b) Always</h3>

{all sides of a rhombus are the same, 4×13=52}

<h3>c) Always</h3>

{oposite angles of a paralleogram are congruent}

<h3>d) Never</h3>

{parallel sides has the same slope}

<h3>e) Always</h3>

{square has all sides of the same length, so it is rhombus}

<h3>f) Sometimes</h3>

{Only if it has angles of 90°}

6 0
3 years ago
D. What value should be assigned to choosing two chips with the number 1 to make
Snezhnost [94]

The value should be assigned to choosing two chips with the number 1 to make the game fair is 5

<h3>What is probability?</h3>

It is a branch of mathematics that deals with the occurrence of a random event.

The complete question is....

Miguel is playing a game in which a box contains four chips with numbers written on them. Two of the chips have the number 1, one chip has the number 3, and the other chip has the number 5. Miguel must choose two chips, and if both chips have the same number, he wins $2. If the two chips he chooses have different numbers, he loses $1 (–$1). a. Let X = the amount of money Miguel will receive or owe. Fill out the missing values in the table. (Hint: The total possible outcomes are six because there are four chips and you are choosing two of them.) Xi 2 –1 P(xi) b. What is Miguel’s expected value from playing the game? c. Based on the expected value in the previous step, how much money should Miguel expect to win or lose each time he plays? d. What value should be assigned to choosing two chips with the number 1 to make the game fair? Explain your answer using a complete sentence and/or an equation.

Now, for fair game the expected value =0

let the amount assigned be x

So,

1/6x-5/6=0

1/6x=5/6

x=5.

Learn more about this concept here:

brainly.com/question/11905174

#SPJ1

8 0
2 years ago
What is the volume of sphere of radius 6 m.
Tems11 [23]

Answer:

904.78 m³

Step-by-step explanation:

V = 4/3 × π r³ = 4/3 × π × 6³ = 904.78

8 0
3 years ago
In the figure, BC is a support for the roof<br> of a garage. What is the length of BC?
Sonbull [250]

Answer:

Bc = √63 ft

Step-by-step explanation:

Here, we want to get the length of BC

As we can see, there is a right angled triangle ABC, with 12ft being the hypotenuse and 9 ft the other side

So we want to get the third leg which is BC

we can use the Pythagoras’ theorem here

And that states that the square of the hypotenuse equals the sum of the squares of the two other sides

let the missing length be x

12^2 = x^2 + 9^2

144 = x^2 + 81

x^2 = 144-81

x^2 = 63

x = √63 ft

4 0
3 years ago
Betty bought six bags of rice when a total of 30 pounds what is the rate of the number of bags to pounds
finlep [7]

Answer:

5 pounds per bag simplified from 30 pounds per 6 bags

Step-by-step explanation:

6 bags of rice is 30 pounds. This means 30 pounds per 6 bags which simplifies to 5 pounds per 1 bag.

3 0
4 years ago
Read 2 more answers
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