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Zina [86]
3 years ago
12

What is 3 + 9 x 2 -5

Mathematics
1 answer:
horsena [70]3 years ago
6 0

Answer:

16

Step-by-step explanation:

<u>Using PEMDAS:</u>

3 + 9 x 2 - 5

= 3 + 18 - 5

= 21 - 5

= <u>16</u>

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Two balls are drawn in succession out of a box containing 4 red and 3 white balls. Find the probability that at least 1 ball was
kifflom [539]

Answer:

A) 40/49

B) 36/42

Step-by-step explanation:

Given:

Red Balls, R : 4

White Balls, W : 3

Total Balls : 3+4=7 balls

A) If balls were replaced before the 2nd draw

P (White) = 3/7; P(Red) = 4

P(at least 1 red ball),

= 1 - P(no red balls)

= 1  - P(White, White)

= 1 - (3/7)(3/7)

= 1-(9/49)

= 40/49

A) If balls were replaced before the 2nd draw

P(1st White Ball) = 3/7 ; P(2nd White Ball) = 2/6

P(at least 1 red ball),

= 1 - P(no red balls)

= 1  - P(1st White, 2nd White)

= 1 - (3/7)(2/6)

= 1 - 6/42

= 36/42

7 0
4 years ago
Salina's age is one-quarter the age of her aunt. If a represents her aunt's age, which expression represents Salina's
alukav5142 [94]

Answer:

D. A over 4

Step-by-step explanation:

One quarter is equal to \frac{1}{4}. If her aunt is age 'a', than Salina's age is a/4

Hope this helps.

4 0
3 years ago
Read 2 more answers
What is the vertex of the graph of g(x)=|x-3|-3
Sedbober [7]

Answer:

(3, -3)

Step-by-step explanation:

The vertex of the most general absolute value function is y = |x|, whose vertex is at (0, 0).   Focusing on the " |x - 3| " tells us that the graph of y = |x| is moved 3 units to the right.  Next, focusing on the " -3 " as it tells us that the resulting graph is shifted 3 units down.  Thus, the vertex of g(x)=|x-3|-3 is at (3, -3).

3 0
3 years ago
QUESTION21 pointssave AnswerThe perimeter of a rectangle is 136 ft. The ratio of its length to its width is g 8, What are the di
jenyasd209 [6]
36ft by 32ft. I didn't do any math to solve this, but you can tell by comparing the ratios.

9:8 (Nine is just larger than eight, so you need to find an answer where the first number is just larger than the second. None of the others come anywhere close to that besides 36:32)
4 0
3 years ago
Read 2 more answers
Find the equation of the line.<br> Use exact numbers.
Shalnov [3]

Answer:

y= 1x + -5

Step-by-step explanation:

y= mx + b

6 0
4 years ago
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