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3 years ago

5

For which interval is the function

(x)=x\sqrt{4-x^2}" alt="f(x)=x\sqrt{4-x^2}" align="absmiddle" class="latex-formula"> continuous?

1 answer:

oee [108]3 years ago

8 0

Hope this kinda helped

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PLEASE HELPPP 7TH GRADE MATHHHH!! WILL GIVE BRAINLIEST!! NEED RN PLEASE

garik1379 [7]

Answer:

Mike

Step-by-step explanation:

Mike is the traveling faster.

7 0

3 years ago

You give up a full time salary of $45,000 a year to go to school for two years that cost $30,000, to recover your investment in

Tpy6a [65]

The minimum salary you need earn per year is $ 69, 000

<em><u>Solution:</u></em>

You give up a full time salary of $45,000 to go to school for two years

<em><u>Find the salary for two years</u></em>

Salary for two years = 45000 + 45000 = 90000

Thus salary for two years is $ 90,000

Cost for school is $ 30,000

<em><u>Total cost: salary for two years + cost for school</u></em>

30, 000 + 90, 000 = 120000

So you need to recover $ 120000 in total

To recover your investment in 5 years or less what is the minimum salary you need to earn

Therefore,

$\rightarrow \frac{120000}{5} = 24000$

So each year you would have to earn 45,000 + 24,000 = 69, 000

Thus the minimum salary you need earn per year is $ 69, 000

6 0

4 years ago

Keenan currently does a total of 8 pushups each day. He plans to increase the number of pushups he does each day by 2 pushups un

vivado [14]

Answer:

Number of push up = 8 + 2x

Step-by-step explanation:

Keenan can do 8 push ups each day. He plans to do 2 extra day until he is doing 30 push ups. Each day he does an additional 2 push up, on the first day he does 8 + 2 = 10 push up, on the second day he does 10 + 2 = 12 push ups. This can be represented by the expression:

Number of push up = 8 + 2x

where x is the number of days.

To do 30 push ups, we can calculate the number of days needed:

30 = 8 + 2x

2x = 30 - 8

2x = 22

x = 11

4 0

3 years ago

what is the y-intercept of the line perpendicular to the line y=-3/4x+5 that includes the point (-3,-3)?

Deffense [45]

Answer:

1

Step-by-step explanation:

For this question, your friend is the point-slope form.

Point-slope form = $y-y_1 = m(x-x_1)$

The only variables you replace are m = slope, y1 = y of a given point, and x1 = x of a given point.

First, we need to find the slope that is perpendicular to the equation $y=-\frac{3}{4}x+5$

An equation that is perpendicular to another equation have to be negative reciprocals (negative inverse) of each other.

If the slope is 3, then the negative reciprocal of 3 is $-\frac{1}{3}$ .

So, since the given slope is -3/4, the negative reciprocal is $\frac{4}{3}$ .

We will use the negative reciprocal as m since we are trying to find the equation of line that includes (-3, -3) and is perpendicular to the other equation.

We will use point slope form using the (-3, -3) points and negative reciprocal as m.

$y-y_1 = m(x-x_1)\\y-(-3) = \frac{4}{3} (x-(-3))\\y+3=\frac{4}{3}(x+3)$

Now, we need to convert this into slope-intercept form. The reason why we need to do this is because y = mx + b, where b is the y-intercept. To do this, solve for y - or in other words, isolate y..

$y+3=\frac{4}{3}(x+3)\\y+3=\frac{4x}{3}+4\\y+3-3=\frac{4x}{3}+4-3\\y=\frac{4}{3}x+1$

The y-intercept of the line is 1.

3 0

3 years ago

F(x + 1) = 3x - 7<br> f(x) = ?<br> Cevabi kitabda=3x-10<br> Nasil yapmiş kitabda

lina2011 [118]

Answer:

<h2>f(x) = 3x + 4</h2>

Step-by-step explanation:

f(x + 1) = 3x - 7

f(x) = f(x + 1 - 1) = 3(x - 1) + 7 = 3x - 3 + 7 = 3x + 4

Check

f(x) = 3x + 4

f(x + 1) = 3(x + 1) + 4 = 3x + 3 + 4 = 3x + 7 CORRECT

8 0

3 years ago