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3 years ago

Please Help ive been stuck on this for 30 mins now will medal and fan

Mathematics

2 answers:

Luda [366]3 years ago

7 0

The answer to your question is A

SOVA2 [1]3 years ago

4 0

C. 486
You just have to replace the letters with numbers, multiply first then add

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How to find the factor of a trinomial?

BaLLatris [955]

I can tell you about the 'ac' method of factoring trinomials by way of an example:-

Factor 3x^2 - 4x - 15

first multiply the first number by the last That is 3 * -15 = -45

Now we need to find 2 factors of -45 which will when added give - 4 ( the coefficient of x)

-9 and = 5 look like the ones so we write

3x^2 - 9x + 5x - 15

Now factor this by grouping:-

= 3x(x - 3) + 5(x - 3)

x - 3 is common to the 2 parts so we have:-

(3x + 5)(x - 3) <-------- These are your factors

Any trinomial can be factored in this way.

6 0

4 years ago

Tom, Michael and Jane visit the same sport club. Tom visits the club every 5th day, Michael every 6th day and Jane every 8th day

Sedaia [141]

Answer: December 3rd.

Step-by-step explanation:

To solve this question, we have to calculate the multiples of 5, 6 and 8 and then choose the lowest common multiple. After then, we add the number chosen to the date earlier given to derive our answer.

For Tom:

Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120

For Michael:

Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120.

For Jane:

Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120.

L. C. M = 120

It should be noted that when we use the calendar or calculate the number of days we have, August 5 will be 217 days.

The next day when the three of them will be at the sports club will be:

= August 5 + 120

= 217 days + 120 days

= 337 days

The 337th day will be December 3rd.

7 0

3 years ago

Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified, exact value in terms o

Digiron [165]

Check the picture below.

$\stackrel{\textit{\Large Areas}}{\stackrel{triangle}{\cfrac{1}{2}(6)(6)}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}\pi (3)^2}}\implies \boxed{18+4.5\pi} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{pythagorean~theorem}{CA^2 = AB^2 + BC^2\implies} CA=\sqrt{AB^2 + BC^2} \\\\\\ CA=\sqrt{6^2+6^2}\implies CA=\sqrt{6^2(1+1)}\implies CA=6\sqrt{2} \\\\\\ \stackrel{\textit{\Large Perimeters}}{\stackrel{triangle}{(6+6\sqrt{2})}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}2\pi (3)}}\implies \boxed{6+6\sqrt{2}+3\pi}$

notice that for the perimeter we didn't include the segment BC, because the perimeter of a figure is simply the outer borders.

7 0

3 years ago

1) In 2001, there were about 62.5 thousand golden retrievers registered in the United States. In 2002, the number was 56.1 thous

ahrayia [7]

62500 - 56100 = 6400 - number of retrivers u lost per year.
Answer need to be lower then 62,5 and 56,1 thousand so no (A) and not (D)
Number is reduce by 6400 and starting amount was 62500, 2 zeros and end must stay there in answer so not (B)
Then it must be (C)

Or u can calculate 62500 - 9*6400 = 4900

5 0

3 years ago

14) Which equation represents the line that passes through the point (4,1) and (20,-3)?

guapka [62]

Answer:

All of the options are in standard form (ax+by=c). But none of the answers is an option. The correct answer is <u>x+4y=8.</u>

Step-by-step explanation:

The following screenshot is a graphing website to prove that the equation x+4y=8 passes through the points (4,1) and (20,-3).

I don’t know if the equation x+4y=8 is an option for you, because I don’t see it as an option to choose out of the four.

But I hope this helps and answers your question :)

8 0

3 years ago

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