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3 years ago

Multiply the following and combine terms where possible. -a(a-b-3)

Mathematics

1 answer:

Scrat [10]3 years ago

6 0

Answer:

-a^2 +ab +3a

Step-by-step explanation:

-a(a-b-3)

Distribute

-a*a -a*(-b) -a *(-3)

-a^2 +ab +3a

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Tenaya earned 82 points on one math test and 94 points on the next test. Elena earned 94 points on the first test and then 82 po

jek_recluse [69]

Answer:

Total test score of Tenaya and Elena are same.

Step-by-step explanation:

Given:

Points earned by Tenaya on one math test = 82

Points earned by Tenaya on next math test = 94

Points earned by Elena on first math test = 94

Points earned by Elena on next math test = 82

We need to Compare the total test scores for Tenaya to the total scores for Elena.

Solution:

First we will find the Total test score of Tenaya and Elena.

Now we can say that;

Total test score of Tenaya is equal to sum Points earned by Tenaya on one math test and Points earned by Tenaya on next math test.

framing in equation form we get;

Total test score of Tenaya = $94+82 = 176\ points$

Total test score of Elena is equal to sum Points earned by Elena on one math test and Points earned by Elena on next math test.

framing in equation form we get;

Total test score of Elena = $94+82 = 176\ points$

Hence from we can say that Total test score of Tenaya and Elena are same.

7 0

3 years ago

What’s the median of the data on the dot plot? HELP ITS DUE IN ONE HOUR

patriot [66]

Answer:

It is 1.5

Step-by-step explanation:

{0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 11}

the middle two are 1 and 2.

the mean of 1 & 2 is 1.5 now you have the median!

8 0

2 years ago

In a certain year, the population of Smallburg was $4{,}000.$ In the following year, the population increased by $15\%.$ What wa

makkiz [27]

Answer:

4,600

Step-by-step explanation:

To solve this problem, we need to multiply add 15% of 4,000 back to 4,000.

First, change 15% into a decimal:

15% -> $\frac{15}{100}$ -> 0.15

Next, multiply 4,000 by 0.15:

$x= 4,000(0.15)$

$x=600$

The last step is to add the 600 back to 4,000:

$4,000 + 600 = 4,600$

The population of Smallburg the following year was 4,600.

5 0

3 years ago

Solve the proportion: 5/x+7=3/x+3

Allushta [10]

Answer:

x=3

Step-by-step explanation:

cross multiply

5(x+3)=3(x+7)

5x+15=3x+21

5x+15-3x=3x+21-3x

2x+15=21

2x+15-15=21-15

2x=6

x=3

7 0

3 years ago

My mom packed my lunch three of the past five days, so the probability of my mom packing my lunch is 3/5. Is this Experimental o

Crank

Answer:

definitely theoretical. Seems how mom packed the lunch 3/5 times a week, the pattern will follow

Step-by-step explanation:

4 0

3 years ago