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3 years ago

Please help with geometry homework will make brainliest

Mathematics

1 answer:

o-na [289]3 years ago

4 0

<u>Answer</u>

<u>Explanation</u>

The two lines in the diagram are secants meeting outside the circle.

The products of a secant and the extension of the chord of one line is equal to the products of a secant and the extension of the chord of the other line.

∴ 4 × 9 = x × 12

36 = 12x

x = 36/12

= 3

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The concentration, in parts per million, of a type of antibiotic in a human's bloodstream after h hours can be modeled by the po

saveliy_v [14]

Answer:

$C(3)=17.69\ ppm$

Step-by-step explanation:

Given:

Given polynomial function is.

$C(h)=-0.09h^{2} +3.5h+8$

Hours $h=3$

We need to find the concentration of the antibiotic after 3 hours.

Solution:

Rewrite the given polynomial function as.

$C(h)=-0.09h^{2} +3.5h+8$

Substitute $h=3$ in given polynomial function.

$C(3)=-0.09(3)^{2} +3.5\times 3+8$

$C(3)=-0.09\times 9+10.5+8$

$C(3)=-0.81+10.5+8$

$C(3)=-0.81+18.5$

$C(3)=17.69\ ppm$

Therefore, the concentration of the antibiotic after 3 hours $C(3)=17.69\ ppm$ .

8 0

4 years ago

The following are the ages (years) of 5 people in a room:

Talja [164]

Answer: the 6th person is 23

Step-by-step explanation

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

MARK THIS AS BRAINIEST

3 0

3 years ago

At what time does the bus arrive at the museum?

Usimov [2.4K]

It's easy ! u add the time of departure plus the journey time!
9:45 + 47 =10:32

7 0

3 years ago

student's course grade is based on one midterm that counts as 10% of his final grade, one class project that counts as 25% of

djverab [1.8K]

Answer:

i would say a B

Step-by-step explanation:

i dont know it correct but i times the grade by the percentage and added them together

7 0

4 years ago

The value of the digit 9 in the number 29,461 is 10 times the value of the digit 9 in which number?

Nadusha1986 [10]

Answer:

900

Step-by-step explanation:

because the value of 9 in 29,461 is 9000

9000 ÷ 10 is 900

8 0

2 years ago