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Daniel [21]
3 years ago
6

Please help me I need help

Mathematics
1 answer:
Llana [10]3 years ago
7 0

9514 1404 393

Answer:

  F.  x ≤ -5

Step-by-step explanation:

Translating the diagram to more conventional symbols, we have ...

  4x +12 ≤ -8

  4x ≤ -20 . . . . . . . subtract 12 from both sides

  x ≤ -5 . . . . . . . . . divide both sides by 5

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What is the vertex of the parabola? y+1=−14(x−2)2 enter your answer in the boxes?
cestrela7 [59]
Y + 1 = -14(x - 2)^2
y = -14(x - 2)^2 - 1
The vertex is the point (h, k) when the parabola is in the turning point form: y = a(x - h)^2 + k, therefor the vertex is at (2, -1)
6 0
4 years ago
Read 2 more answers
A pearl diver goes from clam to clam, checking to see if a pearl is inside. Suppose 10% of clams contain a pearl inside. Approxi
navik [9.2K]

Answer:

The diver will check fewer clams to find his 15th pearl. He will check 15 clams which is 2 clams less than the 17 clam chance given by the 10% probability.

Step-by-step explanation:

CLAM

This is a marine animal that has two shells and live by straining food from water, sand, or mud. They can sometimes found by digging the sand close to the seashore. Like mussels, they can produce pearls, but not as often.

PEARL

They are gems that come in various colors like white, red, gray, blue, green, and black. They are very beautiful and are typically spherical, some also come in an uneven form such as the baroque pearls.

The probability of find pearl inside a clam according to the question is 10%.

P (find pearl in clam) = \frac{10}{100} = \frac{1}{10}

If we have to check 175 clams to look for pearls, how many clams are we expected to search in other to find pears given a 10%  probability out of 175

P (clam with pearl)= \frac{175*1}{10} =17.5

Which is approximately 17 clams

For the diver to find his 15th pearl, he has to check with a minimum chance of checking 15 clams. But the 10% probability of finding a pearl inside a total of 175 clams is 17 clams.

This means the diver will check fewer clams to find his 15th pearl.

7 0
4 years ago
Hi you can answer this it is difficult for me​
dexar [7]

9514 1404 393

Answer:

  see attachments

Step-by-step explanation:

a) A table lists the ordered pairs either by row or by column. In the attached, we have listed the x-values down a column, and the y-values the same way. (This way, we can use the same list for the map.) The table is the first attachment.

__

b) A graph is simply a plot of the given points. The graph is the second attachment.

__

c) A map is similar to a table, but with arrows pointing to the output value for a given input. The map is the third attachment.

4 0
3 years ago
I need help with this:
Brut [27]
By the commutative property of addition, the answer you got
  c = -b+5a
is identical to selection ...
  D. c=5a-b



The commutative property tells you the order of addition doesn't matter, so
  (-b)+(5a) = (5a)+(-b) = 5a-b
(This is one of the reasons we study these properties.)
3 0
4 years ago
The value of 33 + 42 = ___.
frez [133]

Answer:

75

Step-by-step explanation:

We line up the tens place of 33 and 42 as well as the ones place so that it looks like:

33

+42

--------

Then we add first the ones, which is 3 + 2 for 5. Then we add the tens together, 3 + 4 is 7. We put the five first since its in the ones place and the 7 second since its in the tens place for 75.

6 0
3 years ago
Read 2 more answers
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