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3 years ago

Point B is AC between A and C. If AB is doubled and BC is also doubled, predict the effect on AC.

Mathematics

2 answers:

Murrr4er [49]3 years ago

8 0

Answer: AC will also be doubled.

Step-by-step explanation: Given that point B lie between A and C on AC. AB is doubled and BC is also doubled.

We are to find the effect on AC.

Let us consider that

AB = x and BC = y ⇒ AC = AB + BC = x + y.

Then, being doubled, we get

AB = 2x and BC = 2y.

Therefore, we get

$AC=AB+BC=2x+2y=2(x+y).$

Thus, AC will also get doubled.

Elena-2011 [213]3 years ago

3 0

AC would also be divided by two then

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(07.03)

fredd [130]

Answer:

\[(3x^2)3x^2\]

7 0

2 years ago

The value of a rare baseball card A appreciated by 20 percent over a five year period; over the next five years, the value plumm

lbvjy [14]

<h2>Answer:</h2>

<em><u>Percent value of A with respect to Percent value of B is,</u></em>

$30\%$

<h2>Step-by-step explanation:</h2>

In the question,

Let us say the value of the Baseball card A and B initially is = 100x

So, for Baseball card A in first 5 years percent increase = 20%

So,

Value after 5 years = 100x + 20% of 100x = 120x

<u>After 5 more years,</u>

Percent decrease = 50%

So,

<u>Value at the end of 10 years = 120x - 50% of 120x = 60x</u>

Now,

For Baseball card B, Percent increase in 10 years = 100%

So,

<u>Value of card B = 100x + 100% of 100x = 200x</u>

So,

<em><u>Percent value of A with respect to Percent value of B is,</u></em>

$\frac{60x}{200x}\times 100=30\%$

7 0

3 years ago

Item 2

Inessa05 [86]

The question is an illustration of a division model.

The boxes will be completed with: 1650, 231, 50 and 7

The expression is represented as:

$\mathbf{1881 \div 33}$

Express 1881 as 1650 + 231.

$\mathbf{1881 \div 33 = (1650 + 231) \div 33}$

Split

$\mathbf{1881 \div 33 = 1650 \div 33 + 231 \div 33}$

Evaluate each division

$\mathbf{1881 \div 33 = 50 + 7}$

$\mathbf{1881 \div 33 = 57}$

The above illustration means that, the boxes will be completed with the following numbers

1650
231
50
7

See attachment for proper illustration

Read more about division models at:

brainly.com/question/15163437

8 0

2 years ago

On a coordinate plane, a curved line with a maximum value of (negative 1, 2) crosses the x-axis at (negative 3, 0) and (1, 0), a

Aleksandr-060686 [28]

9514 1404 393

Answer:

(–3, 0) and (1,0)

Step-by-step explanation:

The x-intercepts are where the curve crosses the x-axis. Your problem statement tells you ...

"crosses the x-axis at (negative 3, 0) and (1, 0)"

This means the x-intercepts are (-3, 0) and (1, 0).

5 0

2 years ago

Read 2 more answers

Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients r

Tresset [83]

Answer:

0.665

Step-by-step explanation:

Given: 100 people are split into two groups 70 and 30. I group is given cough syrup treatment but second group did not.

Prob for a person to be in the cough medication group = 0.70

Out of people who received medication, 34% did not have cough

Prob for a person to be in cough medication and did not have cough

= $\frac{0.70(34)}{60}=0.397$

Prob for a person to be not in cough medication and did not have cough

= $\frac{0.3(20)}{30}=0.20$

Probability for a person not to have cough

= P(M1C')+P(M2C')

where M1 = event of having medication and M2 = not having medication and C' not having cough

This is because M1 and M2 are mutually exclusive and exhaustive

SO P(C') = 0.397+0.2=0.597

Hence required prob =P(M1/C') = $\frac{0.397}{0.597}=0.665$

4 0

3 years ago

Read 2 more answers