All categories

3 years ago

1. Stella is planning a birthday party for her little sister. The

Mathematics

2 answers:

hammer [34]3 years ago

8 0

Answer:

$23.76

Step-by-step explanation:

$3.96 / 2 = $1.98

$1.98 Is the price per party popper

So u multiply

12 x $1.98 = $23.76

Kaylis [27]3 years ago

5 0

Yes she can but you have to multiple

You might be interested in

Find the volume of the triangular prism below 5mm 12mm 3mm

UNO [17]

Answer: 90 mm cubed

Step-by-step explanation:

Formula = (L*W*H) / 2

5 * 12 * 3 = 60 * 3 = 180

180 / 2 = 90

8 0

3 years ago

Short=5 hypotenuse=10 long=

Leviafan [203]

I hope this helps you

10^2=5^2+x^2

100-25= x^2

x= 5 square root of 3

5 0

3 years ago

Read 2 more answers

I NEED HELP FAST PLEASE :)

user100 [1]

Answer:945

Step-by-step explanation:

4 0

3 years ago

Find the circumference of the circle. Then, find the length of each bolded arc. Use appropriate notation

Vaselesa [24]

Answer:

$\text{1) }\\\text{Circumference: }24\pi \text{ m}},\\\text{Length of bolded arc: }18\pi \text{ m}\\\\\text{3)}\\\text{Circumference. }4\pi \text{ mi},\\\text{Length of bolded arc: } \frac{3\pi}{2}\text{ mi}$

Step-by-step explanation:

The circumference of a circle with radius $r$ is given by $C=2\pi r$ . The length of an arc is makes up part of this circumference, and is directly proportion to the central angle of the arc. Since there are 360 degrees in a circle, the length of an arc with central angle $\theta^{\circ}$ is equal to $2\pi r\cdot \frac{\theta}{360}$ .

Formulas at a glance:

Circumference of a circle with radius $r$ : $C=2\pi r$
Length of an arc with central angle $\theta^{\circ}$ : $\ell_{arc}=2\pi r\cdot \frac{\theta}{360}$

<u>Question 1:</u>

The radius of the circle is 12 m. Therefore, the circumference is:

$C=2\pi r,\\C=2(\pi)(12)=\boxed{24\pi\text{ m}}$

The measure of the central angle of the bolded arc is 270 degrees. Therefore, the measure of the bolded arc is equal to:

$\ell_{arc}=24\pi \cdot \frac{270}{360},\\\\\ell_{arc}=24\pi \cdot \frac{3}{4},\\\\\ell_{arc}=\boxed{18\pi\text{ m}}$

<u>Question 2:</u>

In the circle shown, the radius is marked as 2 miles. Substituting $r=2$ into our circumference formula, we get:

$C=2(\pi)(2),\\C=\boxed{4\pi\text{ mi}}$

The measure of the central angle of the bolded arc is 135 degrees. Its length must then be:

$\ell_{arc}=4\pi \cdot \frac{135}{360},\\\ell_{arc}=1.5\pi=\boxed{\frac{3\pi}{2}\text{ mi}}$

8 0

3 years ago

154 mi/h = ▪️ in./s I think I did this wrong I got 81,312

Vinil7 [7]

I thin the answer is 8,9785

7 0

4 years ago