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Troyanec [42]
3 years ago
11

What term should be added to y2-14y to make it a perfect square trinomial?

Mathematics
1 answer:
Ksju [112]3 years ago
4 0

Answer:

49

Step-by-step explanation:

Given the monomial y²-14y, in order to make the binomial a perfect square, we need to add a constant to the function using completing the square method.

To get the constant, we will multiply the coefficient of y by 1/2 and then square the resulting value.

- The coefficient of y is -14.

multiplying the coefficient of y by 1/2 will give -14/2 = -7

- squaring -7 will result in (-7)²

= 49

The constant that will be added to the binomial to make it a perfect square trinomial is 49

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Which of the following is a continuous random variable?
Nikolay [14]
<h3>Answer: B) The time to complete a specific task.</h3>

For any two different time values, it is possible to find the midpoint or average of them. For instance, if it takes 10 minutes to do the task on Monday, and then 11 minutes to do the task on Tuesday, then it takes (10+11)/2 = 21/2 = 11.5 minutes to do the task on average. Because we are able to find a midpoint like this, and a decimal midpoint makes sense, this means time is a continuous variable.

In contrast, the number of new hires must be a whole number. If we had 10 hires on Monday and 11 hires on Tuesday, then it doesn't make sense to say we hired 11.5 people. So choice A is ruled out. Similar situations play out with choices C and D, which is why we can rule those out too. Choices A, C and D are discrete variables.

4 0
3 years ago
How do i solve this problem 1/15+1/6
Semenov [28]

Answer:

7/30

Step-by-step explanation:

1/6 = 1x5/6x5

    = 5/30

1/15= = 1x2/1x15

       =2/30

2/30 + 5/30 = 7/30

5 0
3 years ago
Lexi made 14 sandwiches for a group picnic. The number of ham sandwiches she made was 4 less than the twice the number of turkey
shutvik [7]

x = # of ham sandwiches

14-x = # of turkey sandwiches ( as Lexi made 14 sandwiches)


as the question said that the number of ha sandwiches are 4 less than twice number of turkey sandwiches,

x = 2 * (14-x) - 4 = 24 - 2x

3x=24

x = 8


the number of ham sandwiches is 8, and the number of turkey sandwiches is 14-8=6

6 0
3 years ago
Round 523,837 to the nearest thousand
Zinaida [17]

Answer:

524,000

Step-by-step explanation:

First, we mark the two nearest thousands.

They are 523,000 and 524,000.

The midpoint is 523,500.

Ignoring the thousands, ten-thousands, and hundred-thousands place, we have 837.

Now, is 837 closer to 0 or 1000?

It's closer to 1000, so 524,000 is our answer.

ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘᴇᴅ!

ʜᴀᴠᴇ ᴀ ɴɪᴄᴇ ᴅᴀʏ!

8 0
2 years ago
Read 2 more answers
Please please help me!
Margarita [4]

Answer:

if i'm not mistaken it's A

6 0
3 years ago
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