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4 years ago

What is the side length of a 121 square centimeter launch pad

Mathematics

2 answers:

DIA [1.3K]4 years ago

8 0

11 centimeters is the length of the launch pad

Alexeev081 [22]4 years ago

7 0

1876241 us the side length

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A ladder leaning against a wall is used to reach a window that is 16 feet above the

ExtremeBDS [4]

Answer:

Step-by-step explanation:

c = √a2 + b2 = √162 + 122 = 20

Hope this helps pls mark brainliest

7 0

3 years ago

A group consisting of 6 people is to be selected from eight parents and four teachers.

zvonat [6]

Answer:

9/32 or 0.28125

Step-by-step explanation:

8 parents and 4 teachers

There are 12 possible outcomes.

probability = # of favorable outcomes / # of possible outcomes

Let's do the teachers first.

There are 4 teachers, and we are finding the probability for 3 of them being picked.

Therefore,

P = 3/4

Now let's do the parents.

There are 8 parents, and we want 3.

Therefore,

P = 3/8

Now, we do $\frac{3}{4} *\frac{3}{8} = \frac{9}{32}$

Therefore, the chance of 3 teachers and 3 parents being picked out of 4 teachers and 8 parents is 9/32, or in decimal form 0.28125.

Hope this helped!

4 0

3 years ago

3. A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round

Tanzania [10]

1. To solve this problem you must sum the volume of the cone and the volume of the hemisphere. This means that the volumen of the prop is:

Vt=Vc+Vh

Vt is the volumen of the prop.
Vc is the volumen of the cone.
Vh is the volume of the hemisphere.

2. The volume of the cone (Vc) is:

Vc=1/3(πr²h)

r=9 in
h=14 in
π=3.14

4. Then, you have:

Vc=(3.14)(9 in)²(14 in)/3
Vc=3560.76 in³/3
Vc=1186.92

5. The volume of the hemisphere (Vh) is:

Vh=2/3(πr³)

π=3.14
r=9 in

6. Then, you have:

Vh=(2)(3.14)(9 in)³/3
Vh=4578.12 in³/3
Vh=1526.04 in³

7. Finally, the volumen of the prop (Vt) is:

Vt=Vc+Vh
Vt=1186.92 in³+1526.04 in³
Vt=2713.0 in³
<span>
What is the volume of the prop?
</span>
The volume of the prop is 2713.0 in³

6 0

4 years ago

Need help with number 10 please!

umka2103 [35]

Answer:

5x-1

Step-by-step explanation:

So, to find the perimeter of a shape we will add up all the sides. The three sides are:

3x-5, 1-2x and 4x+3 and we will start by just adding plus signs between the three side equations and then adding like terms

3x-5+1-2x+4x+3 and now we can add all the terms with x's and all the terms that were just numbers

after we do that we get 5x-1

I hope this helps and please don't hesitate to ask if there is anything still unclear!

5 0

4 years ago

Read 2 more answers

Write the six terms of each arithmetic sequencePlease see picture for question

chubhunter [2.5K]

ANSWER

The six terms for the arithmetic sequence is 1.6, 1.2, 0.8. 0.4, 0, -0.4

EXPLANATION

Given that;

$\begin{gathered} a_n\text{ = a}_{n\text{ - 1}}\text{ - 0.4} \\ \text{ a}_1\text{ = 1.6} \end{gathered}$

To find the second term, let n = 2

$\begin{gathered} \text{ a}_2\text{ }=\text{ a}_{2\text{ - 1}}\text{ - 0.4} \\ \text{ a}_2\text{ }=\text{ a}_1\text{ - 0.4} \\ \text{ a}_1\text{ = 1.6} \\ \text{ a}_2\text{ }=\text{ 1.6 - 0.4} \\ \text{ a}_2\text{ }=\text{ 1.2} \end{gathered}$

To find the third term, let n = 3

$\begin{gathered} \text{ a}_3\text{ }=\text{ a}_{3\text{ - 1}}\text{ - 0.4} \\ \text{ a}_3\text{ }=\text{ a}_2\text{ - 0.4} \\ \text{ a}_2\text{ = 1.2} \\ \text{ a3 }=\text{ 1.2 - 0.4} \\ \text{ a}_3\text{ = 0.8} \end{gathered}$

To find the fourth term, let n = 4

$\begin{gathered} \text{ a}_4\text{ }=\text{ a}_{4-\text{ 1}}\text{ - 0.4} \\ \text{ a}_4\text{ = a}_3\text{ - 0.4} \\ \text{ a}_3\text{ = 0.8} \\ \text{ a}_4\text{ = 0.8 - 0.4} \\ \text{ a}_4\text{ = 0.4} \end{gathered}$

To find the fifth term, let n = 5

$\begin{gathered} \text{ a}_5\text{ = a}_{5\text{ - 1}}\text{ - 0.4} \\ \text{ a}_5\text{ }=\text{ a}_4\text{ - 0.4} \\ \text{ a}_4\text{ = 0.4} \\ \text{ a}_5\text{ = 0.4 - 0.4} \\ \text{ a}_5\text{ = 0} \end{gathered}$

To find the 6th term, let n = 6

$\begin{gathered} \text{ a}_6\text{ }=\text{ a}_{6\text{ - 1}}\text{ - 0.4} \\ \text{ a}_6\text{ = a}_5\text{ - 0.4} \\ \text{ a}_5\text{ = 0} \\ \text{ a}_6\text{ = 0 - 0.4} \\ \text{ a}_6\text{ = -0.4} \end{gathered}$

Hence, the six terms for the arithmetic sequence is 1.6, 1.2, 0.8. 0.4, 0, -0.4

5 0

1 year ago