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liberstina [14]

3 years ago

10

there are 12 boys and 13 girls in a class. There are 10 boys and 15 girls in a second class. what is the probability that both s

tudents will be boys from either class?

1 answer:

o-na [289]3 years ago

3 0

22 out of 50 would be the answer

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Which number is Composite (hope i spelled it right)<br><br> 15<br><br> 17<br><br> 19<br><br> 23

quester [9]

Answer:

15.

Step-by-step explanation:

15 is composite because 3 * 5 = 15.

The others are prime.

8 0

3 years ago

Help in the question above please

Shkiper50 [21]

Answer:

A)11

Step-by-step explanation:

These are matrices one dimensional with one column and 3 rows each.

-The product of the matrices is obtained by multiplying the correspond values and summing up;

$pq=\left[\begin{array}{ccc}3\\2\\-1\end{array}\right] \times\left[\begin{array}{ccc}5\\-1\\2\end{array}\right] \\\\\\\\=(3\times 5)+(2\times -1)+(-1\times 2)\\\\=15+-2+-2\\\\=11$

Hence, the product of p and q is 11

4 0

3 years ago

Adam proposes that his mother changes his allowance according to the

olga2289 [7]

Answer:

a.) $3.20

b.) $102.40

$3,276.80

Step-by-step explanation:

0.2 times 2 five times is 3.2

0.2 times 2 ten times is 102.4

0.2 times 2 fifteen times is 3,276.8

7 0

3 years ago

He first three terms of a geometric sequence are as follows. 10 , 30 , 90 find the next two terms of this sequence.+

ankoles [38]

10*3=30
30*3=90
90*3=270
270*3=810

or

10*3^1=30
10*3^2=90
10*3^3=270
10*3^4=810

the next two terms of this sequence are 270 and 810.

4 0

3 years ago

Which is the best estimate of<br>90/7 divided by 1 3/4

Studentka2010 [4]

Answer:

1 3/4=7/4 since 1*4+3=7, so (90/7)/(7/4)=(90/7)(4/7)=360/49, mixed number form is 7 17/49 and in decimal form is 7.35.

Step-by-step explanation:

6 0

2 years ago