help!

What is the area of the figure Brianna created in square feet?

Answer:

Step-by-step explanation:

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Answer:

$92.5

Step-by-step explanation:

1,8500x.05=92.5

Answer:

1850 / 5% = 36000

Step-by-step explanation:

Answer:

[tex]10\ \text{sq. units}[/tex]

Step-by-step explanation:

The parabola's are

[tex]y=-x^2+9[/tex]

[tex]y=2x^2-3[/tex]

So

[tex]-x^2+9=2x^2-3\\\Rightarrow 12=3x^2\\\Rightarrow \\\Rightarrow x=\sqrt{\dfrac{12}{3}}\\\Rightarrow x=\pm 2[/tex]

[tex]y=-x^2+9=-(2)^2+9\\\Rightarrow y=5[/tex]

[tex]y=-(-2)^2+9=5[/tex]

So, the points at which the parabola's intersect each other is [tex](2,5)[/tex] and [tex](-2,5)[/tex]

The three points of the triangle are [tex](2,5)[/tex], [tex](-2,5)[/tex] and [tex](0,0)[/tex]

Area of a triangle is given by

[tex]A=\dfrac{1}{2}[x_1(y_2-y_3) + x_2(y_3-y_1) + x_3(y_1-y_2)]\\\Rightarrow A=\dfrac{1}{2}[2(5-0)+(-2)(0-5)+0(5-5)]\\\Rightarrow A=10\ \text{sq. units}[/tex]

Area of the triangle formed is [tex]10\ \text{sq. units}[/tex].

Answer:

The answer is 20 watts

Step-by-step explanation:

power=joules/seconds

60/3=20

Answer:

The answer is 16/3.

Step-by-step explanation:

Answer: 16/3

Step-by-step explanation:

Answer:

It's 3 (a + 11)

Step-by-step explanation:

I don't know if you said that the 3 was a negative but if you did then don't choose my answer.

Answer:

The answer is 3(a+11)

Step-by-step explanation:

3.60 per pound

7.20 divided by 3.60 = 2

there are two pounds of strawberries in the bag!

Answer:

(1,1)

Step-by-step explanation:

With the midpoint formula, we're basically finding the average of the two variables, x and y.

Formula: [tex](\frac{x_{1} + {x_2} }{2}, \frac{_{1} + {y_2} }{2} )[/tex]

[tex](\frac{{-1} + {3}}{2} , \frac{{-2} + {4}}{2} )[/tex]

[tex](\frac{2}{2}, \frac{2}{2})[/tex]

(1,1)

Answer:

Answer:

Step-by-step explanation:

Let the number of the problems the team could solve before is x.

Then we have:

They were able to solve 30 problems before the new mathletes joined

Answer:

[tex]\tt{}x = 30 \\ [/tex]

Step-by-step explanation:

[tex]\tt{}x + 40\% = 42[/tex]

[tex]\tt{}1.4x = 42[/tex]

[tex]\tt{}x = \frac{42}{1.4} [/tex]

[tex]\tt{}x = 30[/tex]

[tex] \\ \\ \\ [/tex]

[tex] \huge \orange{\boxed{ \fcolorbox{red}{blue}{ \: CarryOnLearning \: }}}[/tex]

Answer:

I hope you understand this points are my own points

Answer:

133134676

Step-by-step explanation:

aasddkskskisisididid

Answer:

14+n

Step-by-step explanation:

14 more means we are adding and a number means we dont have an specific number so we substitute with n

Hope this helps (:

Answer:

x+14

Step-by-step explanation:

hope it helps!

Answer:

i can help u if u let me know whta the equation means

Step-by-step explanation:

Answer:

25$

Step-by-step explanation:

Answer:

X=5

Step-by-step explanation:

Answer:

since the rate is the same for both trains, and we know that the distance train A travels plus the distance train B travels equals 562.5 miles, we can use the D(istance) = R(ate) * T(ime) formula to solve this.

Train A:

da = R * 4

Train B:

db = R * 3.5 (using 3.5 instead of 3 and 1/2)

Solve for R:

R * 4 + R * 3.5 = 562.5

7.5 * R = 562.5

R = 75

The trains are traveling at 75 miles per hour.

Step-by-step explanation:

Answer:

speed = distance / time

since they are moving in opposite direction, the time is the sum of the two times = 2 1/2 + 4 = 6 1/2 = 13/2

speed = 585/(13/2) = 90 miles per hour.

Step-by-step explanation:

I hope it helps.

Answer:

5 hours

Step-by-step explanation:

If he drove 360 miles in 6 hours, that means he drives 60 miles per hour.

300 divided by 60 is 5, so he will need to drive for 5 more hours

Answer:

5 hours

Step-by-step explanation:

Find his speed in miles per hour:

360/6

= 60

So, his speed is 60 mph

To find how many more hours he would have to drive another 300 miles, divide 300 by 60:

300/60

= 5

So, he would have to drive 5 hours

Answer:

[tex]Selling\ Price = 12b(1.55)[/tex]

Step-by-step explanation:

Given

[tex]Cost\ Price = \$12[/tex]

[tex]Selling\ Price = 55\%\ more[/tex]

Required

Write an expression for the selling price for b birdbaths

This selling price for 1 birdbath is calculated as:

[tex]Selling\ Price = Cost\ Price + 55\% * Cost\ Price[/tex]

Substitute 12 for Cost Price

[tex]Selling\ Price = 12 + 55\% * 12[/tex]

Factorize:

[tex]Selling\ Price = 12(1 + 55\%)[/tex]

Express percentage as decimal

[tex]Selling\ Price = 12(1 + 0.55)[/tex]

[tex]Selling\ Price = 12(1.55)[/tex]

For b birdbaths, the selling price is:

[tex]Selling\ Price = 12(1.55) * b[/tex]

[tex]Selling\ Price = 12b(1.55)[/tex]

The options are not clear; However [tex]12b(1.55)[/tex] answers the question.

Answer:

Option B.             The ratio of the number of students who passed the test to

the total number of students who took the test is 2/3

Step-by-step explanation:

Firstly, we have to find the total number of students who took the test, we can do that by adding the number of students who passed and the number of students who did not pass, so ...

32 + 16 = 48

Now we just write down the ratio between the number of students who passed the test and  the total number of students who took the test. So we get

32/48

Now we just simplify and get...

2/3

Answer:

I believe the answer is 0.07! I hope that helps

0.069 rounded off to the nearest hundredth is 0.69.

Answer:

slope is 4/3 y intercept is -3

Step-by-step explanation:

there is no calculations needed

Answer:

$95.10

Step-by-step explanation:

well take 89.40 and multiply by 6.4%. then add.

89.40 x 6.4% is 5.7. we can make out 5.7 to be $5.70.

$89.40 + $5.70 is 95.1 or $95.10

Answer:

y=3x. .................

Answer:

The answer is r=20

Step-by-step explanation:

[tex] \frac{81}{45} = \frac{36}{r} \\ r = \frac{36 \times 45}{81} = 20[/tex]