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3 years ago

What is the answer to estimate 11.1 + 9.9

Mathematics

2 answers:

Elenna [48]3 years ago

5 0

Answer:

Step-by-step explanation:

11.1 rounds to 11

9.9 rounds to <u>10</u>

(21)

zlopas [31]3 years ago

3 0

11.1

+ 9.9

_____

21 . 0

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The total cost of a compact disc, including a 6% sales tax, is $14.31.

dezoksy [38]

It's 13.50 I'm pretty sure
$13.50 • 1.06 is $14.31

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3 years ago

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Which angles below are complementary?

tigry1 [53]

9514 1404 393

Answer:

∠KXN and ∠QXT

Step-by-step explanation:

The measure of each angle is the difference of the scale values that the rays intercept. (The same scale needs to be used for each ray.) Of course, complementary angles have a sum of 90°.

Here, we'll refer to angle aXb as "ab".

NP = 95 -35 = 60

PQ = 35 -20 = 15 . . . not complementary to NP

KN = 165 -95 = 70

QT = 20 -0 = 20 . . . complementary to KN ⇒ your answer

JK = 180 -165 = 15

PQ = 35 -20 = 15 . . . not complementary to JK

JK = 15

NK = KN = 70 . . . not complementary to JK

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3 years ago

HELP ASAP!!!<br> Find the value of 'A' in the set of complementary angles.

dem82 [27]

answer:

180 - 63 = 117

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3 years ago

Philip ran out of time while taking a multiple-choice test and plans to guess on the last 4 questions. Each question has 5 possi

belka [17]

Answer:

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either it is correct, or it is not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.

In this problem we have that:

There are four questions, so n = 4.

Each question has 5 options, one of which is correct. So

What is the probability that he answers exactly 1 question correctly in the last 4 questions?

This is

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

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4 years ago

Can you solve -3(y-5)=24

garri49 [273]

Answer:y=-3

Step-by-step explanation:yes firs multiply everything by -3 in parenthesies

Then you would subtract 15 from both sides

Next you would divide 9 by -3 and you would get -3

So y =-3

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4 years ago

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