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miskamm [114]
3 years ago
10

What is the shape of f(x)

Mathematics
1 answer:
KonstantinChe [14]3 years ago
8 0

f(x) is concave down on an interval I if all of the tangents to the curve on I are above the graph of f(x)

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A bag contains 6 white marbles, 5 red
Artist 52 [7]

Answer:

1/30

Step-by-step explanation:

      6 white marbles

      5 red marbles

+    19 marbles of other colors

-----------------------------------------------

     30 marbles in total

First drawing:

p(white) = (number of white marbles)/(total number of marbles)

p(white) = 6/30 = 1/5

Second drawing:

Since the first marble is replaced, there are still 30 marbles in the bag.

p(red) = (number of red marbles)/(total number of marbles)

p(red) = 5/30 = 1/6

The two drawings are independent events, so the overall probability of the two events is the product of the individual probabilities.

p(white then red) = p(white) × p(red)

p(white then red) = 1/5 × 1/6

p(white then red) = 1/30

4 0
3 years ago
Help I’m willing to give points if needed or $
bekas [8.4K]

Answer:

it's the first one

hope it helps

6 0
2 years ago
Solve. 4x – 6 = 3x + 8
lisabon 2012 [21]
  4x - 6 = 3x + 8
<u> -3x+6      -3x+6</u>
   x    =  14

x = 14
5 0
3 years ago
Read 2 more answers
Help me solve please
astra-53 [7]

Answer:

x=78; x=56

Step-by-step explanation:

For the first question we know that the angle is 180 degrees, that means the two angles inside of it have to add up to 180:

102+x=180

Subtract 102 from both sides:

x=78

For the second question we know that the angle is 90 degrees, meaning that the two angles on the inside have to add up to 90:

34+x=90

Subtract 34 from both sides:

x=56

4 0
3 years ago
Need help ASAP plz <br> What is the slope of (1,4) (7,2)
aliina [53]

Answer:

3 <em>or 3/1</em>

Step-by-step explanation

the equation for finding the slope when given two coordinate pairs is (y₂ - y₁)/(x₂ - x₁), aka change in <em>y</em> over change in <em>x</em>.

pick one of your coordinate pairs to be y₂ and x₂. it doesn't matter which coordinate pair you choose. the remaining coordinate pair will be your y₁ and x₁.

<em>for this example, i'll use the coordinate pair (7, 2) as my y₂ and x₂ and (1, 4) as my y₁ and x₁.</em>

first, substitute the x-value and y-value from the first coordinate pair.

(y₂ - y₁)/(x₂ - x₁) ⇒ (7 - y₁)/(2 - x₂)

then substitute the y-value and x-value from the remaining coordinate pair.

(7 - y₁)/(2 - x₂) ⇒ (7 - 4)/(2 - 1)

subtract 7 - 4.

(7 - 4)/(2 - 1) ⇒ (3)/(2 - 1)

subtract 2 - 1.

(3)/(2 - 1) ⇒ (3)/(1) <em>or </em>3/1

simplify.

3/1 ⇒ 3

i hope this helps! have a great day <3

7 0
3 years ago
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