All categories

3 years ago

Jan lost 22 points on her exam. She got 11 questions wrong.

Mathematics

2 answers:

rosijanka [135]3 years ago

7 0

Answer:

Step-by-step explanation:

22/11=2

jeyben [28]3 years ago

3 0

Total points =50
Total points =100 because every exam has a total of 100 points.

Total points per each question = 100 / 50 =2

She was penalized two points for each wrong question

You might be interested in

Reduce 4/36 to simplest terms

Alona [7]

Answer: its 1/9

All you do is divide them by 4

4 divided by 4=1

36 divided by 4=9

Also can I get brainly thing?

5 0

2 years ago

Read 2 more answers

Write equivalent expression for 5(×+4)+16

Goryan [66]

5x+20+16
the expression is 5x+36

8 0

2 years ago

On a road trip you see a sign “350 km to Indianapolis”. About how many hours will it take you to drive to Indianapolis if you ar

deff fn [24]

Answer:

3.019 hours.

Step-by-step explanation:

In this case they ask us to calculate the time in hours that are in those distances, for this we have the speed and the distance, we know that speed is equal to:

v = d / t

therefore the time would be:

t = d / t

we must pass the distance that is in kilometers to miles, like this:

350 km * 1 mile / 1.61 km = 217.4 mi

Now if replacing:

t = 217.4 / 72 = 3.019

Therefore, the time would be 3.019 hours.

8 0

3 years ago

BRAINLIESTTT ASAP! PLEASE HELP ME :)

sergiy2304 [10]

Answer:

$\displaystyle Maximum: 11$

Step-by-step explanation:

Convert this Quadratic Equation to Vertex Form by completing the square, $\displaystyle y = a[x - h]^2 + k$ :

$\displaystyle -5x^2 -10x + 6 \\ \\ -5x^2 - 10x + 25 + k \\ -5[x^2 + 2x - 5] + k \\ -5[x^2 + 2x + 1] + k → -5[x^2 + 2x + 1] + 11 → f(x) = -5[x + 1]^2 + 11 \\ \\ Vertex: [-1, 11]; 11 = Maximum$

So as you can see, each time we broke the equation down, we used the formula $\displaystyle [\frac{b}{2}]^2$ to complete the square.

** In the Vertex Formula, −h gives the OPPOSITE terms of what they really are, so do not forget it.

I am joyous to assist you anytime.

4 0

3 years ago

PLEASE HELP FOR BRAINLIEST!!!

SOVA2 [1]

The measure of an angle formed by a secant and a tangent drawn from a point outside the circle is half the the difference of the intercepted arcs.

 $21^o= \frac{arc \ RU-arc \ SU}{2}= \frac{119^o-arc \ SU}{2} \ \to \ \\ \\ 42= 119-arcSU \\ arc \ SU=119-42=77^o$

5 0

3 years ago