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2 years ago

PLEASE HELP! 20 POINTS AND BRAINLIEST FOR THE FIRST RATIONAL ANSWER! PLEASE EXPLAIN!!

Mathematics

1 answer:

Semmy [17]2 years ago

4 0

Answer:

C would be your answer

Hope this helps!

Step-by-step explanation:

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What are the zeros of the polynomial function? f(x)=x2−12x+20 Enter your answers in the boxes. The zeros of f(x) are and

Schach [20]

$f(x)=x^{2} -12x+20$
$f(x)=0$
x $x^{2} -12x+20=0$
Factoring:
$(x-2)(x-10)=0$
Two possible soolutions:

$x-2=0 [tex]x=2$

$x-10=0$
$x=10$

The zeros of the polynomial function are x=2 and x=10

5 0

3 years ago

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Explain in your own words what it means to say "the probability of…" for each statement below. Be clear about describing the ran

Fiesta28 [93]

Answer:

when many M&M candy are placed in a bag (say) and the Candy has different colors, when you decide to pick a candy out of the bag. you will get 0.20 Red candy in the bag out of the many candy with different colors.

Step-by-step explanation:

first step you claim the hypothesis by using the word' say' or any other word to declare a variable.

3 0

3 years ago

9x-4 (x-3)+72<br> what is X?

spin [16.1K]

Answer:

x = 12

Step-by-step explanation:

9*x-4*(x-3)-(72)=0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(9x - 4 • (x - 3)) - 72 = 0

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

5x - 60 = 5 • (x - 12)

8 0

3 years ago

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The illuminance of a surface varies inversely with the square of its distance from the light source. If the illuminance of a sur

lesya692 [45]

Answer: b) 6

Step-by-step explanation:

Given : The illuminance of a surface varies inversely with the square of its distance from the light source.

i.e. for d distance and l luminance , we have

$d^2\times l=k$ , where k is constant. (1)

If the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters.

From (1), we have

$\Rightarrow (6)^2\times 120=k\\\\\Rightarrow\ k=4320$ (2)

For the distance (d) corresponds to the illuminance to 30 lumens per square meter , we have

$d^2\times 30=k$

Put value of k , we get

$d^2\times 30=4320\\\\\Rightarrow\ d^2=\dfrac{4320}{30}=144\\\\\Rightarrow\ d^2=144\\\\\Rightarrow\ d= 12$

Then , the number of meters should the distance of the surface from the source be increased= 12 meters- 6 meters = 6 meters.

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3 years ago

Find the volume of the pyramid below!! HELP!

dexar [7]

Answer:

C. 400

Step-by-step explanation:

You have to multiply 10 x 10 (the base length and width) by 12 (the height) and divide it by 3.

5 0

3 years ago