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2 years ago

A quiz had 20 questions. Andre scored 16 of them correctly. What was Andre's percent score? *

Mathematics

1 answer:

kicyunya [14]2 years ago

4 0

Answer:

80%

Step-by-step explanation:

16 divided by 20

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What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form?

Pavel [41]

$\boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}$

<h2>Explanation:</h2>

Using the quadratic formula:

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ Here: \\ \\ f(x) = x^2 + 5x + 5 \\ \\ \\ So: \\ \\ a=1 \\ \\ b=5 \\ \\ c=5 \\ \\ \\ x=\frac{-5 \pm \sqrt{5^2-4(1)(5)}}{2(1)} \\ \\ x=\frac{-5 \pm \sqrt{25-20}}{2} \\ \\ x=\frac{-5 \pm \sqrt{5}}{2} \\ \\ \\ Two \ solutions: \\ \\ \boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}$

<h2>Learn more:</h2>

Quadratic functions: brainly.com/question/12164750

#LearnWithBrainly

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2 years ago

Which of the following is the product of the rational expressions shown below?

kotykmax [81]

Answer: OPTION D.

Step-by-step explanation:

You have the expressions given in the problem:

$\frac{2}{2x+3}*\frac{9}{x}$

To find the product of both expression you must multiplicate them.

You must multiply the numerators of both expression and the denominators of both expression.

Keeping the above on mind, you obtain that the product is:

$\frac{2*9}{(2x+3)x}$

$\frac{18}{2x^{2}+3x}$

3 0

3 years ago

Read 2 more answers

Please answer 60....I don't understand

bonufazy [111]

So you basically just add up all of the numbers for the number sentence, so:
1800+2150+675+2300+665+95+250+1150+225+750+530. So the sum of those is the new balance, which is $10590

7 0

3 years ago

Help me please ......

oksano4ka [1.4K]

-4 = x - 7
-4 + 7 = x
3 = x

Therefore x = 3

4 0

2 years ago

Simplify the following expressions by using distributive property. 3x^2(4x-3)

mr_godi [17]

Answer:

12x^3-9x^2

Step-by-step explanation:

$3x^2(4x-3)= \\\\3x^2(4x)+3x^2(-3)= \\\\12x^3-9x^2$

Hope this helps!

5 0

2 years ago