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MaRussiya [10]
3 years ago
7

Is the answer is 60 ? I'm so unsure let me know

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
5 0

Perimeter of this triangle

= (8 + 9 + 13) units

= 30 units

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Can someone help me with all of this plz
zlopas [31]
Here's a solution for #8
Volume of a sphere = V = 4/3π r³
Your radius r = 6, so plugging that in you get:
V = 4/3π(6³)
V = 4/3π216
V = 864/3π
V = 288π (units³)

4 0
3 years ago
When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability th
sergiy2304 [10]
The key word here is "or". If it's an OR question, you add the probabilities together. If it says "and", you multiply them together
As it is an OR question though, you add them. 
So: 
15 + 5 = 20%
5 0
3 years ago
Read 2 more answers
Consider the following system of equations:
Delicious77 [7]

Answer:

The system has infinitely solutions

Step-by-step explanation:

we have

-\frac{1}{3}x^{2}=-\frac{5}{6}+\frac{1}{3}y^{2}

\frac{1}{3}x^{2}+\frac{1}{3}y^{2}=\frac{5}{6}

Multiply by 3 both sides

x^{2}+y^{2}=\frac{5}{2} ----> equation A

The equation A is a circle centered at origin with radius r=\sqrt{5/2}\ units

and

5y^{2} =\frac{25}{2}-5x^{2}

5x^{2}+5y^{2} =\frac{25}{2}

Divide by 5 both sides

x^{2}+y^{2} =\frac{5}{2} ----> equation B

The equation B is a circle centered at origin with radius r=\sqrt{5/2}\ units

Equation A and Equation B are the same

Therefore

The system has infinitely solutions

7 0
3 years ago
Read 2 more answers
What is the square root of -1?
Minchanka [31]
The square root of -1 “i”
5 0
3 years ago
jacob bought 5 pencils for 80 cents. At this same rate, how many pencils can hee but for 40 cents? Explain why this answer does
Step2247 [10]
5 pencils cost $.80. Each pencil costs $0.16
Then divide $0.16 into $0.40
This equals 2.5 pencils, you can't buy half a pencil
3 0
3 years ago
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