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3 years ago

Help ASAP I’ll mark you as brainlister

Mathematics

1 answer:

ruslelena [56]3 years ago

5 0

Answer:

volume is 4712.39

Step-by-step explanation:

looked it up lol

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the regular price of a t-shirt is $9.99. It is on sale for 15% off. sale tax is 6%. if u give the cashier a $10 bill,how much ch

rewona [7]

You would get back $1

$9.99-$1.50= $8.49 <--- 15% off

$8.49x.06= .51 cents <--- Taxes

$8.49+.51<--cents= $9 <--- Total cost of the T-shirt

4 0

3 years ago

57. What fraction of a quart is 1/2 cup? 58. What fraction of a gallon is 1/2 cup?

densk [106]

57. 1/8

58. 1/32

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3 0

3 years ago

Read 2 more answers

The perimeter of square JKLM is 48 units.

Mashcka [7]

Perimeter = 4 x sides
48 = 4 (x + 3)
48 = 4x + 12
36 = 4x
x = 9

Check:
x + 3 = 9 + 3 = 12
12 x 4 = 48

4 0

2 years ago

Read 2 more answers

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

nadya68 [22]

Answer: you can use a muscle called the brain

Step-by-step explanation: but I think that 2+2=4 I think that’s correct and thanks for the points.

I’m sorry but I actually don’t know

3 0

3 years ago

Recall the equation for a circle with center (h, k) and radius r. At what point in the first quadrant does the line with equatio

lina2011 [118]

Answer:

The point of intersection is:

$\displaystyle \left(\frac{6\sqrt{5}}{5}, \frac{3\sqrt{5}}{5}+5\right)\approx \left(2.68, 6.34)$

Step-by-step explanation:

We want to find the point in QI at which the line with the equation:

$y=0.5x+5$

Intersect a circle with a radius of 3 and a center of (0, 5).

First, write the equation of a circle. The equation for a circle is given by:

$(x-h)^2+(y-k)^2=r^2$

Where (h, k) is the center and r is the radius.

Since our center is (0, 5), h = 0 and k = 5. The radius is 3. So, r = 3. Substitute:

$(x-0)^2+(y-5)^2=(3)^2$

Simplify:

$x^2+(y-5)^2=9$

At the point where the two equations intersect, its x-coordinate and y-coordinate will be the same. Therefore, we can substitute the equation of the line into the equation of the circle and solve for x. So:

$x^2+((0.5x+5)-5)^2=9$

Simplify:

$x^2+(0.5x)^2=9$

Square:

$x^2+0.25x^2=9$

Combine like terms:

$\displaystyle 1.25x^2=\frac{5}{4}x^2=9$

Solve for x:

$\displaystyle \begin{aligned} x^2&=\frac{36}{5} \\ x&=\pm\sqrt{\frac{36}{5}} \\ x&\Rightarrow \frac{6}{\sqrt{5}}=\frac{6\sqrt{5}}{5}\approx2.68\end{aligned}$

Note that since we are looking for the point of intersection in QI, x should be positive. So, we can ignore the negative answer.

To find the y-coordinate, substitute the x-value back into either equation. Using the linear equation:

$\displaystyle y=0.5\left(\frac{6\sqrt{5}}{5}\right)+5=\frac{3\sqrt{5}}{5}+5\approx 6.34$

So, the point of intersection in QI is:

$\displaystyle \left(\frac{6\sqrt{5}}{5}, \frac{3\sqrt{5}}{5}+5\right)\approx \left(2.68, 6.34)$

6 0

3 years ago