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alina1380 [7]
3 years ago
7

Put a check by the three numbers that are prime numbers. 1 7 15 21

Mathematics
2 answers:
Mrac [35]3 years ago
7 0
Seven is the only prime number here
Aleks04 [339]3 years ago
4 0

Answer:

1

7 ✔️

15

21

Only 7 is a prime number in this question.

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Click and drag like terms onto each other to simplify fully.<br> 2-5+7y-5x+7x-2y
nikdorinn [45]

Answer: 5y + 2x - 3

(In simplest form)

6 0
3 years ago
Read 2 more answers
Find the volume of the square pyramid, given its slant height​
Reptile [31]

Answer:

Step-by-step explanation:

base length b = 32 cm

slant height L = 30 cm

 

height h = √(L²-(½b)²)

= √(30²-0.25·32²)

≅ 25.3771550809 cm

 

volume V = (⅓)b²h

= (⅓)32²·25.38

≅ 8662.07 cm³

7 0
2 years ago
Matthew bought 12 roses for his mother. Exactly 1 of the roses were white. How many of the roses were white?
insens350 [35]
<h3>hello!</h3>

What is \sf{\displaystyle\frac{1}{4}} of 12?

In order to find it, we should divide 12 by 4:-

3

Now, solve our word problem:-

Matthew bought 12 roses. \sf{\displaystyle\frac{1}{4} } of these roses were white.

And we already know how to solve this problem :)

Hence,

\bigstar{\boxed{\pmb{3~of~the~roses~were~white}}}

<h3>note:-</h3>

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

8 0
2 years ago
In a bag of 100 marbles comprised of many colors, 25 are blue. suppose marbles are selected at random.
satela [25.4K]

Solution: The number of ways we can arrange 3 blue marbles if a set of 5 marbles is selected is:

\binom{5}{3}=\frac{5!}{(5-3)!3!}

                          =\frac{120}{2 \times 6}

                          =\frac{120}{12}=10

Therefore, there are 10 ways we could arrange 3 blue marbles.

3 0
2 years ago
Does anybody know this
Makovka662 [10]

Answer:

1) 75°

2)

3) 135°

4) 105°

7 0
3 years ago
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