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3 years ago

When you subtract a positive number from a negative number the difference is always

Mathematics

1 answer:

deff fn [24]3 years ago

8 0

The answer is true.

(+)(+)= +

(-)(-)= +

(-)(+)= -

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A survey of 1950 people found that 39% preferred chocolate ice cream to vanilla. About how many people preferred chocolate ice c

FrozenT [24]

N(U) = 1950
39% of them preferred chocolate ice-cream.
Then,
no. Of people who preferred chocolate ice-cream= 39% of 1950
=39/100 *1950
= 760.5

6 0

4 years ago

Read 2 more answers

Solve y = x2 +11 for x.

Hunter-Best [27]

Answer:

x = ±sqrt(y-11)

Step-by-step explanation:

y = x^2 +11

Subtract 11 from each side

y -11 = x^2 +11-11

y-11 = x^2

Take the square root of each side

±sqrt(y-11) = sqrt(x^2)

±sqrt(y-11) = x

5 0

4 years ago

A section representing 20% of a circle graph has an angle measure of 20°.

gulaghasi [49]

We need five sections of 20% to get 100%.

So all we need to do is times 20 degrees by 5.

20 x 5 = 100

So your answer is 100 degrees.

Hope this helped. Have a great day!

7 0

3 years ago

Read 2 more answers

Please answer all of the questions and if u are correct I will give u brainliest ;) xoxo <3

garik1379 [7]

Answer:

the answer for the 2nd question is 1/4

Step-by-step explanation:

i took the test

3 0

2 years ago

A casino features a game in which a weighted coin is tossed several times. The table shows the probability of each payout amount

kkurt [141]

Answer:

The expected payout of the game is $230.46.

Step-by-step explanation:

The given table is

Payout Amount : $160 $4400 $145000

Probability : 0.146 0.024 0.0007

We need to find the expected payout of the game.

The formula for expected payout is

$\text{Expected payout}=\sum n_iP(x_i)$

where, n is amount and P(x) is probability of that event. The value of n is negative for loss.

Using the above formula we get

$\text{Expected payout}=160\times 0.146+4400\times 0.024+145000\times 0.0007$

$\text{Expected payout}=23.36+105.6+101.5$

$\text{Expected payout}=230.46$

Therefore the expected payout of the game is $230.46.

6 0

3 years ago