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Lerok [7]
3 years ago
15

Alejandro looked at his first three science tests for the quarter. His scores are represented in different ways. Test 1 number o

f correct questions is 21, number of total questions is 25 what is the percent correct. Test 2 number of correct questions is 17, what is the number of total questions and the percent correct is 85%. Test 3 what is the number of correct questions, number of total questions is 30 and the percent correct is 80%. Determine all missing values for the table above. Show your work in the space below.
Mathematics
1 answer:
hodyreva [135]3 years ago
4 0
He would have gotten 24 right out of 30 questions to get 80% on his 3rd test

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Which system of inequalities is shown?
Oksanka [162]

Answer:

y < x

y < 4

Step-by-step explanation:

Dotted line means < or >, and since the shaded region is below the lines y = 4 and y = x, the answer is A.

8 0
2 years ago
Pls help
loris [4]

Answer:  

y = 4x² -19x -5

Step-by-step explanation:  

When you graph it (or use an appropriate tool), it can help us to figure out that the equation is:

y = 4x² -19x -5

(Quadratic regression = the process of determining the equation of a parabola that best fits a set of data)

<em>Hope this helps, have a nice day :D</em>

8 0
3 years ago
I will give your brainlest
Anna71 [15]

Answer:

1.3-b

-1.7-e

1.7-a

-0.8-d

-0.2-c

5 0
3 years ago
What is the approximate area of the shaded region? Circumscribed square with side length 8 meters. The four regions between the
myrzilka [38]

Answer:

13.76 square meters

Step-by-step explanation:

The side of square is 8 meters.

So, the diameter of circle = 8 meters.

⇒ Radius = (diameter of circle) ÷ 2 = 8 ÷ 2 = 4 meters

Shaded region = Area of square - Area of circle

                        = (Side × Side) - π × (radius)²

                        = 8 × 8 - π × 4 × 4                {∵ π = 3.14 or 22÷7}

                        = 64 - 50.24

                        = 13.76 square meter

4 0
3 years ago
Given that f(x)=x-3 and g(x)=x^2-x, find (f+g)(-2)​
mario62 [17]

Answer:

(f + g)(- 2) = 1

Step-by-step explanation:

(f + g)(x) = f(x) + g(x) , thus

f(x) + g(x)

= x - 3 + x² - x

= x² - 3

Thus

(f + g)(- 2) = (- 2)² - 3 = 4 - 3 = 1

3 0
3 years ago
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