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Mariulka [41]
3 years ago
13

If f(a) = 3a? – a, then what is the value of f(-2) ?

Mathematics
1 answer:
Airida [17]3 years ago
4 0

Answer:

Step-by-step explanation:

-7

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The double number line shows the approximate number of ounces in a certain number of pounds:
Ivahew [28]

Answer:

128 ounces

Step-by-step explanation:

there are 16 ounces in each pound so 16 x 8 = 128 ounces

8 0
3 years ago
On August 1, Stacy had a negative balance in her bank account: she was $43 in debt. Stacy deposits $75 from her paycheck on Augu
Art [367]

Answer:

Transaction 1: $-43

Transaction 2: $32

Transaction 3: $-83

Step-by-step explanation:

A bunch of adding and subtracting

5 0
3 years ago
PLEASEEEEEEE HEEELLLLPPPPP MEEE
Aleks04 [339]

Answer:

The second option

Step-by-step explanation:

For this problem, there are multiple ways to solve. The easiest here is the cross method. For ax²+bx+c, you find 2 numbers that multiply to ac and add to b, which you replace b with.

ac in this case is -8×3, which is -24. b in this case is 23.

You can go through the factor pairs of -24 to find the ones that add to b. These pairs are (1 and -24, -1 and 24, 2 and -12, -2 and 12, 3 and -8, -3 and 8, 4 and -6, -4 and 6). The only pair that adds to 23 is 24 and -1.

You sub this into the original equation, making 3x²+24x-x-8.

From there, you factorise, making 3x(x+8)-x(x+8).

This can be factorised further to (3x-x)(x+8) by collecting like terms.

**This question involves factorising quadratics, which you may wish to revise. I'm always happy to help!

3 0
3 years ago
A tent that initially sold for $68.00 is on sale for 21% off. What is the sale price of the tent?
quester [9]

Answer:

Hey!

Try this!

   Take the original price.

   Divide the original price by 5.

   Alternatively, divide the original price by 100 and multiply it by 20.

   Subtract this new number from the original one.

   The number you calculated is the discounted value.

   Enjoy your savings!

7 0
3 years ago
Read 2 more answers
A group of teenagers was asked where they prefer to study and do homework. Their results are shown in the table below. Place Num
Trava [24]

Answer:

C). Circle Graph

Step-by-step explanation:

As per the question, a '<u>circle graph</u>' would be most adequate to display that the majority of the teenagers prefer to do their study and homework in their bedrooms. <u>A circle graph or pie-chart represents the data in a visually appealing manner using colors to display various proportions of the data that makes it easy to understand for the readers</u>. Thus, <u>more than half of the circle filled with the same color will clearly hint that most of the teenagers love doing their studies in their bedroom</u>. Thus, <u>option C</u> is the correct answer.

6 0
3 years ago
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