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3 years ago

A basketball player scores 28 points in

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

7 0

Answer:

d) 80

Step-by-step explanation:

(35% = 0.35)

equation:

⇒ $0.35x = 28$

divide 0.35 on both sides

⇒ $\frac{0.35x}{0.35} = \frac{28}{0.35}$

solve:

⇒ x = 80

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Which function in vertex form is equivalent to f(x) = 4 + x2 – 2x? f(x) = (x – 1)2 + 3 f(x) = (x – 1)2 + 5 f(x) = (x + 1)2 + 3 f

melamori03 [73]

Answer: First Option

$f (x) = (x-1) ^ 2 + 3$

Step-by-step explanation:

Quadratic quadratic functions have the following form:

$f (x) = (x-h) ^ 2 + k$

Where the point (h, k) is the vertex of the function.

For a quadratic function of the form $f (x) = ax ^ 2 + bx + c$ the vertex of the function is at the point $(-\frac{b}{2a}, f(\frac{-b}{2a}))$

In this case the function is: $f(x) = 4 + x^2 - 2x\\\\f(x)=x^2 -2x +4$

Then:

$a=1\\b=-2\\c=4$

The vertex is:

$(-\frac{(-2)}{2(1)}, f(\frac{2}{2(1)}))$

$(1, f(1))$

Note that

$f(1) = (1)^2 -2(1) +4\\\\f(1)=1-2+4=3$

Therefore the vertex is the point $(1, 3)$

Finally we have that $h=1,\ k=3$

The function in vertex form is :

$f (x) = (x-1) ^ 2 + 3$

7 0

3 years ago

Please help it’s in the picture

Alisiya [41]

Answer:

see explanation

Step-by-step explanation:

When 2 chords intersect then the product of the parts of one chord is equal to the product of the parts of the other chord, that is

4x = 16 × 7 = 112 ( divide both sides by 4 )

x = 28

Thus

diameter = LK = 4 + 28 = 32 cm

6 0

3 years ago

Sea World has 9 aquariums with small fish in them and the number of fish in each tank are shown below: 45, 10, 48, 19, 36, 25, 6

crimeas [40]

Answer:

Step-by-step explanation:

To find the range, subtract the lowest number from the highest number

Arrange the numbers from least to greatest

45, 10, 48, 19, 36, 25, 63, 14, 37

10, 14, 19, 25, 36, 37, 45, 48, 63

The highest number is 63, and the lowest is 10

Now, subtract the lowest (10) from the highest (63)

highest - lowest

63-10

So, the range of the number of fish is 53

4 0

3 years ago

I need help with this PLEASE!!

pishuonlain [190]

Answer:

didn't u already answer this already

and which question do you need help on

Step-by-step explanation:

8 0

3 years ago

You and your friend play a game. You answer 80% of the questions correctly and your friend answers 0.60 of the questions correct

bezimeni [28]

Answer:

Step-by-step explanation:

Assuming both players can answer the same question, the minimum number of questions is the smallest number that when multiplied by either 0.60 or 0.80 yields a whole number.

Let x be the number of questions, solving by trial and error:

$if\ x=2\\x*0.8=1.6\\x*0.6=1.2\\\\if\ x=3\\x*0.8=2.4\\x*0.6=1.8\\\\if\ x=4\\x*0.8=3.2\\x*0.6=2.4\\\\if\ x=5\\x*0.8=4\\x*0.6=3\\\\$

Therefore, the minimum number of questions in the game is 5.

5 0

3 years ago