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kotegsom [21]
3 years ago
15

Which answer is it I’m doing my quiz rn

Mathematics
2 answers:
anyanavicka [17]3 years ago
8 0

Answer:

10

Step-by-step explanation

3 x 4 = 12

8 + 12 = 20

20 / 2 = 10

grigory [225]3 years ago
5 0

Answer:

B, 10

Step-by-step explanation:

1) Multiply 3 by 4. You get 12

2) Add 8. That leaves you with 20

3) 20 divided by 2 equals 10

:) Good luck on your quiz

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Dvinal [7]

Answer:

2) 14 y 2 m

Step-by-step explanation:

Year 9 students: total age= 100* 14 10/12= 1400 +100*5/6= 1483 y 8 m

Year 8 students: total age= 100* 13 6/12= 1350 y

Total age of 200 students: 1483 y 8 m + 1350 y= 2833 y 8 m

Average age= 2833  8/12  ÷ 200= (12*2833+8)/12 ÷ 200 = 34004/(12*200)= 34004/2400= 14  404/2400 ≈ 14 1/6 y= 14 y 2 m

4 0
3 years ago
What is the completely factored form of this polynomial?
Sholpan [36]

Answer:

A. (x + 2)²(x - 2)²

Step-by-step explanation:

x⁴ - 8x² + 16 =

(x² - 4)(x² - 4) =

(x - 2)(x + 2)(x - 2)(x + 2) =

(x - 2)²(x + 2)²

5 0
3 years ago
Can someone please help me on this??
Usimov [2.4K]

Answer:

C

Step-by-step explanation:

To solve this use the equation x^2 -15x - 50 = y given in the problem and the value y = 50. Substitute y = 50 then solve for x by factoring.

x^2 -15x - 50 = 50\\x^2 - 15x -100 = 0

Find two numbers which multiply to -100 and also add to -15. The numbers are -20 and 5.

So the factored form is (x-20)(x+5) = 0.

Set each factor equal to 0 and solve.

(x-20) = 0 so x = 20.

(x+5)=0 so x = -5.

This means the temperature is 20 degrees C or -5 degrees C. Only 20 is an option. The solutions is C.

3 0
3 years ago
WILL GIVE BRAINLIEST TO CORRECT ANSWER
Musya8 [376]
The volume of a Cone = \frac{1}{3} \pi r^{2}h

Since for the ice cream cone has h = 4 inches; r = 0.75; π = 3.14

Then Volume of the Cone = 2.355 in³

∴   This ice cream cone can hold  ≈  2.36 in³ of ice cream without overflowing
7 0
3 years ago
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Decide whether each equation is true for all, one, or no values of x.<br>​
Alina [70]

Answer:

Step-by-step explanation:

4 0
2 years ago
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