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Pie
3 years ago
8

Don't understand number 1

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0
It will be 20 cm I believe

Because AB is half of AC

if AB is 10 cm then the other half would be 10 cm

So just add those and you get 20cm


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(-3x+4)+(8x-5)
VikaD [51]

Answer:

answer is 5x-1

its A

hopes this helps u

4 0
3 years ago
Read 2 more answers
If there are 19 questions and each question has 4 answers, what is the probability she will answer at least one question correct
gregori [183]

Answer:

0.9958

Step-by-step explanation:

P(being correct) = 1/4 = 0.25

Hence, p = 0.25

n = 19

P(x ≥ 1) = p(x = 1) + p(x = 2) +... + p(x = 19)

Using the binomial probability formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

However, to save computation time, we could use a calculator :

Using a calculator,

P(x ≥ 1) = 0.99577

P(x ≥ 1) = 0.9958

7 0
3 years ago
the width of a rectangle is 6 units less than the the length. The area of a rectangle is 7 units. What is the length of the rect
diamong [38]

Answer:

Length: 7 units

Width: 1 unit

Step-by-step explanation:

8 0
3 years ago
This graph shows a portion of an odd function.
damaskus [11]

Answer:

f(x) =

-2

-1

-2

-3

On Edgenuity 2020

Step-by-step explanation:

Got it correct on Edgenuity :)

Or if you would like the longer explanation;

The graph given explained:

On a coordinate plane, a function has four connecting lines. The first line goes from (0, 0) to (2,2), the second line goes from (2, 2) to (3, 1), the third line goes from (3, 1) to (5, 3), and the fourth line is horizontal to the x-axis at 3.

After finding the matching points on the graph using the coordinates on the x axis (on the line), you should get 2, 1, 2, and 3. Then use the odd function which is

f(-x) = -f(x) and insert those numbers in -f(x)

which leads you to the answer above which is

f(x) =

-2

-1

-2

-3

Hopefully this helped !

Sorry I couldn't explain it any better but I did it in a way that I was able to understand how I got my answer ! :)

8 0
3 years ago
Give an example of a function with a domain of (-∞,0).
pishuonlain [190]

Answer:

The one to the right

Step-by-step explanation:

7 0
3 years ago
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