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professor190 [17]
3 years ago
15

Please help me and pls answer all of them. I really need help... Plssssss

Mathematics
1 answer:
slavikrds [6]3 years ago
8 0

Answer:

Step-by-step explanation:

Ok, so if there is no number in front of a variable (the letters), there is always a one. So you multiply them like this:

7 x 1b x 4 x 1a x 2 = <em>56ba</em>

1c x 5 x 1b x 4 x 1a = 20cba

Since there is only a 1 in front of the variables, you can basically just multiply the numbers without variables and then mutiply that times one. Don't forget to add the variables into the answer.

6 x 1p x 4 x 5 x 1w = 120pw

1t x 2 x 1t x 1s = 2t^{2} s

Please give me brainliest if I helped!

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Help me plz and explain
Verdich [7]
58.50 - 45 = 13.50

13.50 / 45 x 100 = 30%

answer: mark up 30%
8 0
3 years ago
2. A bag contains 5 red marbles, 3 blue marbles, 6 white marbles, and 2 green marbles.
Georgia [21]

Answer:

Step-by-step explanation:

5 red

3 blue

6 white

2 green

total 16 marbles.

Note: P(E) = probability of event E happening

P(~E) = probability of event E NOT happening.

We usually leave probabilities in fractions whenever possible because they will not be subject to round-off errors.

A. choose one marble at random.

P(W) = 6 white / 16 total = 3/8

B. choose one marble at random.

P(~R) = (16-5)/16 = 11/16

C. choose one marble at random, then a second one without replacement,

there will be 3 blue out of 16 at the beginning, then if successful, there will be 2 blue out of 15.

P(BB) = (3/16)*(2/15) = 1 / 40

D. choose two with replacement

5 red out of 16 for first draw, still 5 red out of 16 for second draw.

P(RR) = (5/16)^2 = 25/256

5 0
3 years ago
in the past year tom watched 4 movies that he thought were very good. he watched 40 movies over the whole year. Of the movies he
balandron [24]
10% of the movies, because 100/40 is 2.5 so you would do 4 x 2.5 which equals 10. AKA
So if you’re trying to change it to x/100, you would do cross division and get 10/100 which equals 10%
5 0
3 years ago
Read 2 more answers
I NEED HELP WITH THIS PROBLEM......
Sonja [21]
Roger is 17 :) have a nice day :)
6 0
3 years ago
Read 2 more answers
The equation sin (25 degree) equals StartFraction 9 Over c EndFraction can be used to find the length of Line segment A B.
Bumek [7]

Answer:

AB = 21.3

Step-by-step explanation:

Given

\sin(25) = \frac{9}{c}

See attachment

Required

Find AB

We have:

\sin(25) = \frac{9}{c}

Make c the subject

c = \frac{9}{\sin(25)}

c = 21.3

From the attached triangle;

AB = c = 21.3

Hence:

AB = 21.3

8 0
3 years ago
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