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3 years ago

7. If f(x) = 2x2 - x + 1, find f(2).

Mathematics

1 answer:

klemol [59]3 years ago

7 0

The answer is X2+8 make sure it’s a small number 2 :)

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In a school, the number of boys is 9 more than thrice the

SCORPION-xisa [38]

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Let the number of girls = $x$

Then, According to the question,

number of the boys = $9 + 3x$

Total students in class = 60, so

$9 + 3x + x = 60 \\ = > 9 + 4x = 60 \\ = > 4x = 60 - 9 \\ = > 4x = 51 \\ = > x = 51 \div 4 \\ = > x = 12.75$

On rounding off

Then, number of girls = 13

3 0

3 years ago

Read 2 more answers

What is the volume of a prism with the length and width of x and a height of 1/2 x

polet [3.4K]

Answer:

1 1/2x or 1.5x

Step-by-step explanation:

x*x*1/2*x is 1.5x or 1 1/2x

3 0

3 years ago

Given sin x =.1234, find x in degrees.

romanna [79]

You plug in the calculator sin−¹(.1234)
And it gives you 7.088
But since it asks you to round it your final answer would be:
7.1

7 0

3 years ago

Solve the equation. −2 1/4=r−4/5 will give brainiest for the first correct answer!!!

STatiana [176]

Answer:

r = -1 9/20

Step-by-step explanation:

-2 1/4 = r - 4/5

Switch sides:

r - 4/5 = -2 1/4

Add 4/5 to both sides.

r = -2 1/4 + 4/5

Change the mixed numeral into a fraction:

r = -9/4 + 4/5

The LCD is 20.

r = -45/20 + 16/20

r = -29/20

r = -1 9/20

6 0

3 years ago

OK can someone help me on this one...?

aksik [14]

2. multiplication property of equality

3. subtraction property of equality

4. addition property of equality

5. division property of equality

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3 years ago