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3 years ago

Help! How do I find the answer

Mathematics

2 answers:

likoan [24]3 years ago

7 0

Answer:

Step-by-step explanation:

Angles M and 85° are "corresponding angles" and are thus equal.

Angle M is 85°

Katyanochek1 [597]3 years ago

4 0

Answer:

C) m∠H = 85°

Step-by-step explanation:

KL is the mid-segment of the triangle, and is correlated with line GH, therefore, they are parallel. This means that m∠K = m∠G and m∠L = m∠H, because they are corresponding and on parallel lines.

By substitution, m∠H = 85°

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Which of the following square roots would not be between 7 and 8

bekas [8.4K]

Answer:

C, √45

Step-by-step explanation:

First, we can use process of elimination to get rid of A and D, since we know we're looking for a range, and only the highest or the lowest number is going to be outside of that range.

Now we simply have to run the remaining answers through our calculators. √62 is 7.87 and √45 is 6.71. Since 7.87 is between 7 and 8 and 6.71 is not, C must be our answer.

4 0

4 years ago

Read 2 more answers

Which expression is not equivalent to (x + 4)(x – 3)?

Digiron [165]

Answer:

A) x² + 7x - 12 is NOT equivalent to the expression.

Step-by-step explanation:

1) expand by distributing terms.

${x }^{2} - 3x + 4(x - 3)$

2) Expand by distributing terms.

${x}^{2} - 3x + 4x - 12$

3) Collect like terms.

${x}^{2} + ( - 3x + 4x) - 12$

4) Simplify.

${x}^{2} + x - 12$

The second equation are equivalent to the equation. but the first equation is not equivalent to the main equation.

6 0

3 years ago

After constructing a relative frequency distribution summarizing IQ scores of college students, what should be the sum of the re

saul85 [17]

Answer:

Option A. If percentages are used, the sum should be a 100%. If proportions are used, the sum should be 1.

Explanation:

The relative frequency can be measured as a ratio (proportion) or as a percentage.

As a ratio, the relative frequency is the number of times that the desired outcome is observed (either theoretically or experimentally) divided by the total number of possible outcomes (theoretically) or observed (experimentally).

As a percentage, the relative frequency is the ratio multiplied by 100.

This shows it mathematically:

relative frequency of event 1 = frequency of event 1 / number of events

relative frequency of event 2 = frequency of event 2/number of events

relative frequency of event n = freqquency of event n/number of events

Total relative frequency = sum of of relative frequencies

= sum of all (n) frequencies / number of events =

= number of events / number of events = 1

As a percentage, total relative frequency = 1 × 100 = 100

7 0

3 years ago

If the expected value (the mean) of successes in a binomial experiment of 100 trials is 55. Which of the following are not true?

Elis [28]

Answer:

All of the statements are true

Step-by-step explanation:

Given that :

Number of trials (n) = 100

Expected number of successes = 55

The number of successes of the 100 trials :

Number of successes / number of trials = 55 / 100 = expected number of successes / n = 55/ 100 = 0.55

Using Normal approximation :

Standard deviation (σ) = √(npq) ; q = 1 - p = 1 - 0.55 = 0.45

σ = √(100 * 0.55 * 0.45) = √24.75 = 4.975

The probability distribution of x = B(n, p) = x = B(100, 0.55)

Using approximation ; N(p, σ) = N(55, 4.97)

Hence, All of the statements are true

7 0

3 years ago

What’s the answerrrrrrr ??

Alexandra [31]

B is the right answer i think

4 0

3 years ago