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arlik [135]
3 years ago
5

If f(x) = -x^2+3x, find (-5)

Mathematics
1 answer:
love history [14]3 years ago
4 0
The A/= it means the answer is okay.

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4. Some scrabble letters are laid out that spell RECORDER. If they are all turned over and scrambled,
Ivanshal [37]

Answer: The answers are (a)1/8th (b) 0.125 (c) 12.5%

Step-by-step explanation:

How I drew this conclusion is, you have 8 letters in RECORDER so its 8/64 the same spot for every letter which simplifies to 1/8th. Now for the decimal divide 8 into 64 to get 0.125 decimal form. Lastly, for the percent 8 * 100 = 0.125 then 0.125 * 100 gets you 12.5%. Hope this helps you understand good luck.

8 0
3 years ago
Select the solutions to the following inequality: |x| < 7
Rasek [7]
|x| < 7
means x < 7 and x > -7

answer is -7 < x < 7
4 0
3 years ago
What precent is 30 is 24
GuDViN [60]

Answer:

80 percent

Step-by-step explanation:

5 0
2 years ago
Which expressions simplify to a rational answer? Select each correct answer. 29√⋅4√ 3√⋅16−−√ 73⋅−√3√ 5√⋅5√
PolarNik [594]

Answer:

The correct options are 1, 3 and 4.

Step-by-step explanation:

We need to find the expressions whose simplified form is a rational number.

Rational number: If a number is defined in the form of p/q where p and q are integers and q≠0, then it is called a rational number.

For example: 0,2, 4.3 etc.

Irrational number: If a number can not defined in the form of p/q, where p and q are integers and q≠0, then it is called an irrational number.

First expression is

2\sqrt{9}\cdot \sqrt{4}=2(3)\cdot (2)\Rightarrow 6\cdot 2=12

12 is a rational number.

Second expression is

\sqrt{3}\cdot \sqrt{16}=\sqrt{3}\cdot 4\Rightarrow 4\sqrt{3}

4\sqrt{3} is an irrational number.

Third expression is

7\sqrt{3}\cdot \sqrt{3}\Rightarrow 7\cdot 3=21

21 is a rational number.

Fourth expression is

\sqrt{5}\cdot \sqrt{5}=5

5 is a rational number.

Therefore, the correct options are 1, 3 and 4.

4 0
3 years ago
Solve for X using either sine, cosine, or tangent
vovikov84 [41]

Answer:

•12.12

•56.92

Step-by-step explanation:

•Sin 30° = x ÷ 14√3

x=14√3 *Sin30

x=7√3

x=12.12

•Tan30°=6√3÷x

x=6√30 ÷Tan 30

x=18√10

x=56.92

7 0
3 years ago
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