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Andreas93 [3]
3 years ago
7

A. -1 B. 1 C. Undefined D. 0

Mathematics
1 answer:
vovikov84 [41]3 years ago
6 0

Answer: 0

Step-by-step explanation:

Using the Trigonometric values table or unit circle, calculate the expression.

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. If f(x) = 3x - x, what is the value of f(7 - 2)?
kifflom [539]

Answer:

10

Step-by-step explanation:

f(x) =3x-x=2x,

f(7-2)=f(5)= 2*5=10

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3 years ago
Langston has $45$ greeting cards. He gives $18$ of the cards to his friends. What percent of his greeting cards does he give to
dalvyx [7]

Answer:

45-18=27 Greeting cards

Step-by-step explanation:

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3 years ago
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Question 4 of 25
Gnoma [55]

Answer:

Step-by-step explanation:

We are looking for P(58 < x < 64). We need to find the percentage to the left of the z-scores for each of these numbers. To find the z scores, use the formula:

z=\frac{x_i-\bar{x}}{\sigma}

z=\frac{58-62}{4} which gives us a z-score of -1. The percentage of numbers to the left of a z-score of -1 is .1586553

Now for the other z-score:

z=\frac{64-64}{4} which gives us a z-score of .5. The percentage of numbers to the left of a z-score of .5 is .69146246

The lower percentage subtracted from the higher gives the area in question:

.69146246 - .1586553 = .53280716, or as a percentage, 53.3%, choice A.

7 0
3 years ago
Javier estimates the square root of 18 in the following way: √18=2√9=2*3=6 Explain why her reasoning is incorrect. Without using
Hunter-Best [27]

Answer:

Javier estimates the square root of 18 in the following way: √18=2√9=2*3=6 Explain why her reasoning is incorrect. Without using a calculator, the square root of 18 will be between what two values (remember to look for perfect squares/perfect square roots)? Show your reasoning. You do not need to find the decimal equivalent of the root.

6 0
3 years ago
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Solve the inequality.<br> 3x + 5<br> ———- &lt;4<br> 2<br><br> x &lt; [?]
astra-53 [7]

Answer:

x \leqslant 1

Step-by-step explanation:

first multiply both side by 2 to get rid of the fraction

3x + 5 \leqslant 4(2)

3x + 5 \leqslant 8

3x \leqslant 8 - 5

3x \leqslant 3

x \leqslant 1

3 0
2 years ago
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