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Zinaida [17]
3 years ago
15

Jan receive -22 points on her exam she got 11 questions wrong out of 50 how much was Jan penalized for each wrong answer

Mathematics
2 answers:
AveGali [126]3 years ago
8 0
Jan was penalized -2 points fo every question she got wrong.
elixir [45]3 years ago
7 0

Answer:

Jan was penalized 2 points for each wrong answer.

Step-by-step explanation:

Given that got -22 points on her exam with 11 wrong, it can be concluded that for every 1 answer wrong she got -2 points. This is found by dividing 22 by 11, which is 2.

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1/2 n + 10.5 =3.5 find the value of n
vova2212 [387]

Answer:

n= -14

Step-by-step explanation:

First, convert \frac{1}{2} into a decimal:

\frac{1}{2} as a decimal is 0.5

now the equation is 0.5n+10.5=3.5

Move the constant to the right and change its sign:

0.5n=3.5-10.5

Calculate the difference:

0.5n=3.5-10.5

0.5n= -7

Divide both sides of the equation by 0.5:

0.5n÷0.5= -7÷0.5

n= -14

Hope this helps!! <3

8 0
3 years ago
Solve:<br><br> (2.5x10^6) x (3x10^6)<br><br> (1.1x10^7)/(1.2x10^7)
bazaltina [42]

7.5^12

.916666666666

6 0
4 years ago
Select all the correct answers.
Wittaler [7]

If the measure of angle θ is 3π/4, the true statements are:

  1. sin(θ) = √2/2.
  2. The measure of the reference angle is 45°.

<h3>How to determine the true statements?</h3>

In Trigonometry, an angle with a magnitude of 3π/4 (radians) is equivalent to 135° (degrees) and it's found in the second quarter. Thus, we would calculate the reference angle for θ in second quarter as follows:

Reference angle = 180 - θ

Reference angle = 180 - 135

Reference angle = 45°.

Also, a terminal point for this angle θ is given by (-√2/2, √2/2) which corresponds to cosine and sine respectively. This ultimately implies that sin(θ) = √2/2.

tan(θ) = cos(θ)/sin(θ)

tan(θ) = [(-√2/2)/(√2/2)]

tan(θ) = -1

In conclusion, we can logically deduce that only options A and B are true statements.

Read more on terminal point here: brainly.com/question/4256586

#SPJ1

Complete Question:

If the measure of angle θ is 3π/4, which statements are true. Select all the correct answers.

A. sin(θ)=sqrt2/2

B. The measure of the reference angle is 45

C. The measure of the reference angle is 30

D. The measure of the reference angle is 60

E. cos(θ)=sqrt2/2

F. tan(θ)=1

6 0
2 years ago
Find the quadratic function that fits curve below. Select the correct answer.
raketka [301]
<h2>Hello!</h2>

The answer is:

The quadratic function that fits the given picture is:

y=-3x^{2}+13x-5

<h2>Why?</h2>

We can solve the problem and find the correct function that fits the curve below by finding which function intercepts the y-axis at -5 (we can see it from the picture), also, we need to look for a function that represents a parabola opening upwards. We need to remember that when a parabola is opening upwards, its quadratic term coefficient is negative.

So, we can see that from the given functions, the only function that represents a parabola opening upwards and its y-intercept is located at y equal to -5 is the second option:

y=-3x^{2}+13x-5

We have that :

a=-3(negative)\\b=13\\c=-5(y-intercept)

We can see that the quadratic term (a) is negative, and the quadratic function intercepts the y-axis at y equal to -5.

Hence, the answer is:

The quadratic function that fits the given picture is:

y=-3x^{2}+13x-5

Have a nice day!

Note: I have attached a picture for better understanding.

4 0
3 years ago
Which expression is equivalent to 4^7 x 4^-5​
melisa1 [442]
<h2>4⁷×4⁵</h2><h3>{a^m×a^n=a^(m×n)}</h3><h3>=4^(⁷×-⁵)</h3><h3>=4^-35</h3>

please mark this answer as brainlist

3 0
3 years ago
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