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alexdok [17]
3 years ago
15

Find the percent of decrease From 64 photos to 21 photos

Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

67.2

Step-by-step explanation:

64 - 21 = 43

43/64 × 100 = 67.188

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Select all that apply. Proteins _____. are part of antibodies consist of amino acids contain carbon, hydrogen, oxygen, and nitro
soldier1979 [14.2K]

Answer:

  • parts of antibodies
  • consist of amino acids containing carbon, hydrogen, oxygen, and nitrogen

Step-by-step explanation:

Antibodies are immune system-related proteins called immunoglobulins.

Proteins are made up of amino acids, which are small organic molecules made up of carbon, hydrogen, nitrogen, and oxygen.

Hope that helps.

7 0
3 years ago
Select the Expressions that are equivalent to -2(4-3x)+(5x-2) PLZ help do tommorrow
Alborosie
Answer is B.........
5 0
4 years ago
HELP ASAP! <br><br> Use the quadratic equation y = –2x^2 + 4x +5 to complete the statements.
gregori [183]

Answer:

Step-by-step explanation:

Given quadratic equation is,

y = -2x² + 4x + 5

y = -2(x² - 2x) + 5

y = -2(x² - 2x + 1 - 1) + 5

y = -2(x² - 2x + 1) + 2 + 5

y = -2(x - 1)² + 7

This equation is in the vertex form of the quadratic equation,

y = a(x - h)² + k

where, (h, k) is the vertex of the parabola.

Therefore, vertex of the given quadratic equation is (1, 7)

The equation can be rewritten as y = -2(x - 1)² + 7.

Therefore, the vertex of the graph of the function y = -2x² + 4x + 5 in the xy-coordinate plane is located at the point (1, 7).

4 0
3 years ago
A math teacher randomly selects one student in a class to write a probability question on a chalkboard. The teacher then randoml
Fittoniya [83]

Answer:

The probability to the nearest thousandth is 0.386

Step-by-step explanation:

Firstly, we will need to know the number of girls and the total number of students in the class.

We have the ratio as 3:5 for boys and girls with the number of boys being 18

What we have is thus;

3:5 = 18:g

3/5 = 18/g

3g = 90

g = 90/3

g = 30 girls

Thus, we have 18 boys and 30 girls with a total of 48 students.

The probability that the teacher selects a girl to write the question on the board is 30/48 = 5/8

Now, we intend selecting another girl to answer the question. This is like a probability without replacement. So this means that the number of girls we have now is 29 and the number of students we are selecting from is 47 students

Thus, the probability of selecting a girl to answer the question becomes 29/47

The joint probability is thus; 29/47 * 5/8 = 145/376 = 0.3856

To the nearest thousandth, we have 0.386

5 0
3 years ago
Please answer this question for 25 points !! :D
Jet001 [13]
We know that 5 x 5 = 25, so the only answer choice with a 5 in it is 0.5

0.5 x 0.5 = 0.25, and the square root of that just equals 0.5.

Answer: C. 0.5
8 0
3 years ago
Read 2 more answers
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