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You and your best friend are both on the swim team. You want to beat your friend at the next swim meet so you
decide to swim 15 minutes longer than she does one day at practice.
Write an equation for the number of minutes you swim, y, when your friend swims a number of minutes.
You swim 55 minutes.
How many minutes did your friend swim?
minutes
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what is your question ?

i don't understand

Step-by-step explanation:

use the above picture as a reference and solve

Answer:

36°

Step-by-step explanation:

So, the angle measure of x+15 is 36 because x = 21

The angle measure of 3x-9 is 54, but this is bigger than the one before.

So, the smallest angle is 36

Please give the other person brainliest cause they deserve it more than me.

Answer:

1 3 5

Step-by-step explanation:

Answer:

○ B. [tex]\displaystyle 69\:inches\:to\:75\:inches[/tex]

Explanation:

The Empirical Rule states that sixty-eight percent of the population will be within one standard deviation of the mean in height. Therefore, you perfourm the operations below:

[tex]\displaystyle \boxed{75} = 3[1] + 72 \\ \boxed{69} = -3[1] + 72[/tex]

I am joyous to assist you at any time.

Find upper range and lower range by adding and subtracting standard deviation respectively.

Lower range

Upper range:-

Option B is correct

Answer:

78

Step-by-step explanation:

Given a complex number z = a + b i, the real part is Re(z) = a and the imaginary part is Im(z) = b.

So given that z = 6 - 3 i, we have Re(z) = 6 and Im(z) = -3.

Answer:

The speed would be 60kph

60/60=1

Step-by-step explanation:

60x24=1,440

It would at a speed of 1,440km per day.

In a year it would go 525,600 km.

Every nanosecond it would go 0.0001 cm.

Answer:

The value of x is 4.8. The length of BC is 14.6.

Step-by-step explanation:

I combined the two expressions 3x+1 and 2x+5 to 5x+6=30

1. I subtracted 6 from 6 and 30 in the equations.

2. I was left with 5x=24

3. I then divide 5 from 5x and 24

4. I got x=4.8

To get the length of BC

2x+5

1. I multiplied 2×4.8

2. I got 9.6

3. I then add 5 to 9.6

4. I finally get the answer 14.6 which is the length of BC

Answer:

[tex]\overline{BC}=14.6[/tex]

Step-by-step explanation:

we know that

[tex]\overline{AC}=\overline{AB}+\overline{BC}[/tex]

so

[tex]30=3x+1+2x+5\\\\30=(3x+2x)+(1+5)\\\\30=(3+2)x+(1+5)\\\\30=5x+(1+5)\\\\30=5x+6\\\\5x+6=30\\\\5x+6-6=30-6\\\\5x+0=30-6\\\\5x=30-6\\\\5x=24\\\\\frac{1}{5}(5x)=\frac{1}{5}(24)\\\\\frac{5}{5}x=\frac{1}{5}(24)\\\\\frac{1}{1}x=\frac{1}{5}(24)\\\\x=\frac{1}{5}(24)\\\\x=\frac{24}{5}\\\\x=4.8[/tex]

and now we solve for BC

[tex]\overline{BC}=2x+5\\\\\longrightarrow x=4.8\longleftarrow \\\\\overline{BC}=2(4.8)+5\\\\\overline{BC}=9.6+5\\\\\overline{BC}=14.6[/tex]

so that's our answer

Answer:

Step-by-step explanation:

you need to plug in

Answer:

(-2, 4.5)

Step-by-step explanation:

The midpoint formula is [tex](\frac{x_{1} +x_{2}}{2} ,\frac{y_{1} +y_{2}}{2})[/tex]

(-5+1/2, 3+6/2)

(-4/2, 9/2)

Your answer will be (-2, 4.5)

Answer:

Step-by-step explanation:

x₁ = 0   ; y₁=0  &

x₂ = 1    ; y₂=2

Slope =[tex]\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

         [tex]=\dfrac{2-0}{1-0}\\\\\\=\dfrac{2}{1}\\\\\\= 2[/tex]

Slope = 2

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]\frac{x^{2}-9 }{x+3}[/tex]

you factorize x²-9 to get (x+3)(x-3)

that would now be [tex]\frac{(x+3)(x-3)}{x+3}[/tex]

x+3 would cancel out the other x+3

then you would be left with (x-3)

Answer:

Hello there buddy I’m MrsNobody and I’m here too help you

Your answer is

x+3)(x−3)x+3

Cancel the common factor.(x+3)(x−3)x+3(x+3)(x-3)x+3

Divide x−3x-3 by 11.

Answer;x−3

Hope it’s helps you buddy

I’m sorry if my answer is wrong

Have a nice day

Good luck with your homework

Step-by-step explanation:

~MrsNobody

Answer:

The population in 2012 is estimated in approximately 223 million people

Step-by-step explanation:

Exponential Growth

The formula for exponential growth of a variable P at the growth rate r, as time t goes on in discrete intervals, or at integer times 0, 1, 2, 3, ..., is :

[tex]\displaystyle P(t)=P_0(1+r)^{t}[/tex]

Where Po is the value of P at time 0.

The country’s population in 1991 was 211 million, and in 1998 it was 215 million. We have two discrete times to define the equation and set the year 1991 as t=0. Thus, the year 1998 is t=7.

The preliminary equation is:

[tex]\displaystyle P(t)=211(1+r)^{t}[/tex]

To find the value of 1+r, we use the second point (7,215):

[tex]\displaystyle 215=211(1+r)^{7}[/tex]

Dividing by 211:

[tex]\displaystyle \frac{215}{211}=(1+r)^{7}[/tex]

Solving:

[tex]\displaystyle (1+r)=\sqrt[7]{\frac{215}{211}}[/tex]

Calculating:

[tex](1+r)=1.002686[/tex]

The complete equation is:

[tex]\displaystyle P(t)=211(1.002686)^{t}[/tex]

Estimate the population in 2012 (t=21):

[tex]\displaystyle P(21)=211(1.002686)^{21}[/tex]

[tex]P(21)\approx 223[/tex]

The population in 2012 is estimated in approximately 223 million people

Answer: the answer would be 9!

Step-by-step explanation:

if the number started with 9, it would be 9,234, which reads nine thousand two hundred thirty-four.

hope this helps :)

Answer:

The remaining number in thousands units is 9

---

Thank you so much for participate in the community of Brainly.com

I hope help you :)

Kind regards, Antonio.

Answer:

22 in

Step-by-step explanation:

volume of a right prism = area of base x height

Given:

⇒ 352 = 16 × height

⇒ height = 352 ÷ 16

⇒ height = 22 in

Height be x

[tex]\\ \rm\rightarrowtail 16x=352[/tex]

[tex]\\ \rm\rightarrowtail x=352/16[/tex]

[tex]\\ \rm\rightarrowtail x=22[/tex]

Answer:

182.08

Step-by-step explanation:

Answer:

y=-1x-8

Step-by-step explanation:

Answer:

2 portraits

Step-by-step explanation:

since she painted 3 in 15 minutes, it means that she took 5 minutes on each portrait. If Natalie were to paint portraits for 10 minutes she would paint 2 portraits

3p in 15min = 1p in 5min = 2p in 10min

Hi!

The vertex is the highest or lowest point on a graph, also known as the maximum/minimum. It is the turning point for the parabola.

In this case, it has a maximum, because the parabola points downward.

Using the graph, we can see the vertex is at point

(3, 4)

Answer:

(3,4)

Step-by-step explanation:

The vertex is a point that is the maximum or minimum of the parabola. (3,4) is the highest point on that parabola so it's a vertex

Answer:

C. X8

Step-by-step explanation:

correct me if im wrong

Answer:

See below.

Step-by-step explanation:

The answer would be x^8.

When multiplying exponents, you add them, rather than actually multiplying.

-hope it helps

Answer:

Enter any decimal value and get the number rounded to its nearest thousandths in ... Step 2: Now, look at the digit, which is next to the thousandth place.

Answer:

the answer to thus question is 9

Answer:

9

Step-by-step explanation:

1,000

fourth digit every time, unless a number is a decimal,

Answer:

6.5 hours per day

$321.75

Step-by-step explanation:

Given Kirsten worked 39 hours in 6 days:

Number of hours worked in one day = 39 ÷ 6 = 6.5 hours

Given Kirsten is paid $8.25 per hour:

Total pay for 39 hours = 39 × 8.25 = $321.75

9514 1404 393

Answer:

  x^3 -4x^2 +12x -27

Step-by-step explanation:

Use the distributive property.

  = (x^2 -x +9)(x) +(x^2 -x +9)(-3)

  = x^3 -x^2 +9x -3x^2 +3x -27

  = x^3 -4x^2 +12x -27 . . . . . collect terms

Answer:

19,2000

Step-by-step explanation:

The circumference is πd, and the diameter is 10, so the circumference is 10π. All sides of a square are equal, so the length of each side is 10π/4, which is 2.5π.

The length of each side of the square is 2.5π  

Therefore the reflection of the point (m,0)and m≠0 will produce an image located at (0,-m) when reflection occurs across the line y=(-x).

Answer:

a reflection of the point across the line y = –x

Step-by-step explanation:

Let m = 5.

Graph (5, 0).

Then graph (0, -5).

Then draw the line y = -x.

You will see that the line y = -x is the axis of symmetry for the two points.

Answer:

a reflection of the point across the line y = –x