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Tomtit [17]
3 years ago
13

Someone help fast!!! Easy points!!!

Mathematics
1 answer:
erica [24]3 years ago
8 0

Answer:

2A/h   - b<em>2</em>=  b<em>1</em>

Step-by-step explanation:

A = 1/2 ( b<em>1</em>+ b<em>2</em>) h

Multiply each side by 2

2*A = 2*1/2 ( b<em>1</em>+ b<em>2</em>) h

2A =  ( b<em>1</em>+ b<em>2</em>) h

Divide each side by h

2A/h =  ( b<em>1</em>+ b<em>2</em>) h/h

2A/h =  ( b<em>1</em>+ b<em>2</em>)

Subtract b<em>2 </em>from each side

2A/h  - b<em>2</em>=  b<em>1</em>+ b<em>2-</em>b<em>2</em>

2A/h  - b<em>2</em>=  b<em>1</em>

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How do you identify the roots of a parabola on a graph?
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Answer:

Step 1:

Find the vertex. Since the equation is in vertex form, the vertex will be at the point (h, k).

Step 2:

Find the y-intercept. To find the y-intercept let x = 0 and solve for y.

Step 3:

Find the x-intercept(s). To find the x-intercept let y = 0 and solve for x. You can solve for x by using the square root principle or the quadratic formula (if you simplify the problem into the correct form).

Step 4:

Graph the parabola using the points found in steps 1 – 3.

Step-by-step explanation:

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3 years ago
The present age of Alex is ‘y’ years. Answer the following
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Answer:

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(b) What was his age 6 years back?

"y - 6" years old

(c) His grandfather‘s age is 5 times his age, What is the age of grandfather?

"5y" years old

(d) His father’s age is 6 years more than 3 times his age. What is his father’s age?

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Note: Ignore the quotation marks, ""

5 0
4 years ago
Read 2 more answers
Write the following inequality in slope-intercept form -6x+2y is greater than on equal to 42
andreyandreev [35.5K]

Answer:

\large\boxed{y\geq3x+21}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

-6x+2y\geq42\qquad\text{add}\ 6x\ \text{to both sides}\\\\2y\geq6x+42\qquad\text{divide both sides by 2}\\\\y\geq3x+21

4 0
4 years ago
Draw a tree diagram for three fair coins tossed together once.
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Answer:

I have attached a picture with the work to your question.

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7 0
3 years ago
An integer N is to be selected at random from {1, 2, ... , (10)3 } in the sense that each integer has the same probability of be
Andrej [43]

Answer:

Probability of N Divisible by 3 - 0.33

Probability of N Divisible by 5 - 0.2

Probability of N Divisible by 7 - 0.413

Probability of N Divisible by 15 - 0.066

Probability of N Divisible by 105 - 0.0095

Step-by-step explanation:

Given data:

Integer N {1,2,.....10^3}

Thus total number of ways by which 1000 is divisible by 3 i.e. 1000/3 = 333.3

Probability of N divisible by 3 {N%3 = 0 } = \frac{333.3}{1000} = 0.33

total number of ways by which 1000 is divisible by 5 i.e. 1000/5 = 200

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total number of ways by which 1000 is divisible by 7 i.e. 1000/7 = 142.857

Probability of N divisible by 7 {N%7 = 0 } = \frac{142.857}{1000} = 0.413

total number of ways by which 1000 is divisible by 15 i.e. 1000/15 = 66.667

Probability of N divisible by 15 {N%15 = 0 } = \frac{66.667}{1000} = 0.066

total number of ways by which 1000 is divisible by 105 i.e. 1000/105 = 9.52

Probability of N divisible by 105 {N%105 = 0 } = \frac{9.52}{1000} = 0.0095

similarly for N is selected from 1,2.....(10)^k where K is  large then the N value. Therefore effect of k will remain same as previous part.

3 0
4 years ago
Read 2 more answers
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