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jarptica [38.1K]
3 years ago
12

(2x-7)^2 subtracted from 2

Mathematics
1 answer:
weqwewe [10]3 years ago
4 0

Write out the expression 2 - (2x-7)^2.  That's it.

But if you want to go further and remove the parentheses, first expand (2x-7)^2:   (2x-7)^2 = 4x^2 - 28x + 49,

and then subtract this result from 2:

2 - (4x^2 - 28x + 49) (It's important to use parentheses here)

Now, following the distributive property of multiplication, remove the parentheses:

2 - 4x^2 + 28x - 49

Combining the constants, we get the final answer:  - 4x^2 + 28x - 47

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At a football game, the ratio of men to women is 4:1 There are 9,000 people in total, and each ticket costs £10 Calculate the am
uranmaximum [27]

Answer:

£72000

Step-by-step explanation:

According to the Question,

  • Given, At a football game, the ratio of men to women is 4:1 & There are 9,000 people in total

Thus, 5 ⇒ 9000 People

So, 4 ⇒ 7200 People(Men)

      1 ⇒ 1800 People(Women)

  • And, each ticket costs £10

Thus, The amount of money made from tickets sold to men is 7200 total Men x £10 Per Ticket Cost ⇒ £72000.

4 0
3 years ago
A class of 28 students has 13 boys and 15 girls. What is the ratio of girls to boys in the class? 15:28 13:15 O 13:28 15:13 Prev
uranmaximum [27]

Answer:\frac{15}{13}

Step-by-step explanation:

Given

There are 28 students in a class out of which

13 are boys so the remaining 15 are girls

Ratio of girls to boys in the class=\frac{15}{13}

8 0
3 years ago
A single card is drawn from a 52 standard deck. Find the conditional probability that the card is a heart given that it's a jack
MakcuM [25]
You can use the formula for conditional probability as Puzzling did. However in this problem it is easier just to restrict yourself and enumerate the cases that are left. 

<span>There are 4 jacks. One of them is a heart. So the probability is 1/4. </span>

<span>If you want to look at what the formula for conditional probability does, it adjusts your probability by restricting the "universe". </span>

<span>P(heart and jack)/P(jack) </span>
<span>= (1/52)/(4/52) = 1/4</span>
7 0
3 years ago
Describe in words a situation that can be represented by 7÷2​
Gelneren [198K]

Answer:

Example: There are 7 packs of candy, but only two people can share it equally.

Step-by-step explanation:

7/2= 3.5. If each person gets 3.5 bags, they both have an equal amount.

6 0
3 years ago
PLEASE HELP!!
Mariulka [41]
2. 3. 5. are correct

1. and 4. are actually interchanged
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3 years ago
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