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murzikaleks [220]
3 years ago
13

Ms. Bauer corrected 2⁄3 of the science quizzes. Mr. Richardson corrected 2⁄7 of the quizzes. What fraction of the science quizze

s has been corrected?
Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
We must add 2/3 and 2/7.
We have to convert these to fractions with "21" as the denominator.
14/21 plus 6/21 =
20/21 of the quizzes have been corrected.


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A flashlight is projecting a triangle onto a wall, as shown below.
zavuch27 [327]

Answer:

Hence the correct option is 3rd option. 40

Step-by-step explanation:

If two figures are similar, then the ratio of the corresponding sides is proportional.

\frac{15}{30} =\frac{20}{n} \\\\n=\frac{30 \times 20}{15} \\\\n= 40.

6 0
2 years ago
ASAp
maria [59]

Answer:

y = negative 1 over 2x + 11

Step-by-step explanation:

x is replaced with each number that is in that side of the table. I tried each answer and filled in the blanks (the x).

4 0
3 years ago
Solve for x using the Quadratic Formula: x2 + 4x + 4 = 0<br> -b + Vb2 - 4ac<br> x=<br> 2a
Irina18 [472]

Answer:

x = -2.

Step-by-step explanation:

In this case, a is 1, b is 4 and c is 4.

-4 plus or minus the square root of 4^2 - 4 * 1 * 4 divided by 2 * 1 = -4 plus or minus the square root of 16 - 16 / 2 = -4 plus or minus the square root of 0 / 2 = -4 / 2 = -2.

x = -2.

Hope this helps!

8 0
3 years ago
Please help me solve this
In-s [12.5K]

Step-by-step explanation:

Erase the dot points you already have. We are supposed to substitute those values in the right side of problem 1 into the function as x.

For example if x=-4

- ( - 4) + 5 = 9

If x=-2

- ( - 2) + 5 = 7

If x=0

0 + 5 = 5

- 2 + 5 =  3

- 4 + 5 = 1

So our point should be

-4,9

-2,7

0,5

-2,3

-4,1.

The range is all possible y values in a function. Since this is discrete and we are given the domain, our range will just be the y value of the points you graphed.

(9,7,5,3,1)

5 0
2 years ago
Sierra is growing tomato plants. She wants to grow the plants to be at least 48 inches tall. Which situation is represented by t
Len [333]
The first one is the correct answer due to 4 is the initial height of the plaint and 0.75 are inches that being added every week
6 0
3 years ago
Read 2 more answers
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