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3 years ago

Consider the Conditional Statement shown.

Mathematics

1 answer:

mezya [45]3 years ago

6 0

Answer:

A student can play the trumpet, but not be in the school band

Step-by-step explanation:

A counterexample would prove the conditional false. That will be the case when the condition is met, but the conclusion is wrong. Such a case is ...

A student can play the trumpet, but not be in the school band

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PLEASE HELP ME

Gennadij [26K]

Answer:

D) 252.00

Step-by-step explanation:

Initial price of computer = $400

Less 30 % = -0.30 × 400 = - 120

Sale price = 280

Less 10 % = -0.10 × 280 = -28

Final price = $252

7 0

4 years ago

If y varies directly as x^2 and y = 72 when x =3, what is the value of y when x = 6?

Komok [63]

Answer:

288

Step-by-step explanation:

$y \alpha x {}^{2}$

then

$y = kx {}^{2}$

72=9k

dividing both side by 9

k=72÷9

$y = 8 {x}^{2}$

y=8×6²

y=8×36

y=288

6 0

4 years ago

Combine like terms<br> y+9+7(y+9)

solong [7]

First step: (simplify) y+9+7y+63, Second step: (combine) 8y+72

5 0

3 years ago

Read 2 more answers

Which point is not on the graph of the function y = x + 5?

Blizzard [7]

(10,5)

Explanation:
By replacing the value of x with the x co-ordinate of the point above, we get that;
y=10+5
y=15
This does not tally with (10,5)

6 0

4 years ago

A person must score in the upper 7% of the population on an admissions test to qualify for membership in society catering to hig

olya-2409 [2.1K]

Answer:

The minimum score a person must have to qualify for the society is 162.05

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

Test scores are normally distributed with a mean of 140 and a standard deviation of 15. This means that $\mu = 140, \sigma = 15$ .