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mestny [16]
3 years ago
14

Which expression is a factor of 3xy + 2x – 18y – 12?

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0

x+6 is the right one


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Angelica reads 15 pages of a book each day. In 10 days, she reads 200 pages. Assume the relationship is linear. Find and interpr
Phantasy [73]

Given:

Angelica reads 15 pages of a book each day.

In 10 days, she reads 200 pages.

Assume the relationship is linear.

To find:

The rate of change and initial value.

Solution:

The slope intercept form of a linear function is:

y=mx+b            ...(i)

Where m is the slope and b is the y-intercept.

Angelica reads 15 pages of a book each day. So, the rate of change is 15 pages per day and m=15.

In 10 days, she reads 200 pages. It means the linear relation passes through the point (10,200).

Putting x=10,y=200,m=15 in (i), we get

200=15(10)+b

200=150+b

200-150=b

50=b

So, the y-intercept is 50. It means the initial number of pages angelica already read is 50.

Therefore, the rate of change is 15, it means Angelica reads 15 pages per day. The y-intercept is 50, it means the initial number of pages angelica already read is 50.

5 0
3 years ago
5 consecutive integers whose sum is -155
nekit [7.7K]

Answer:

-29, -30, -31, -32, -33

Step-by-step explanation:

add them together

5 0
3 years ago
Decide which calculation shows the correct way to find 0.3 - 0.006 and explain your reasoning.
kirza4 [7]
D : 0.300- 0.006 is correct



A is wrong bec 0.3 doesn’t have the extra 0’s in the end

B is wrong bec the decimal places aren’t aligned

C is wrong bec again, the decimal places aren’t aligned
6 0
2 years ago
Read 2 more answers
I also need help with this one, simplifying this radical expression. This ones weird.
Darya [45]

Answer:

1

Step-by-step explanation:

Factorise numerators/ denominators where possible

3x² - 4x + 1 = (x - 1)(3x - 1)

x² - 1 ← is a difference of squares and factors as

x² - 1 = (x - 1)(x + 1)

Expressing the product in factored form

\frac{(x-1)(3x-1)}{(x-1)(x+1)} × \frac{x+1}{3x-1}

Cancel common factors on numerator/denominator, that is

Cancel (x - 1) , (x + 1) and (3x - 1), leaving the simplified form 1

7 0
3 years ago
Read 2 more answers
8• √100 - 4 square • 5
Marizza181 [45]

Answer:4

Step-by-step explanation:

It’s 4

3 0
2 years ago
Read 2 more answers
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