MATHEMATICS HIGH SCHOOL

12.6÷−4.2=
Please help meeeeeeeeeeee

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

12.6/4.2 = 3

Answer 2

Answer:

Answer:-3

Step-by-step explanation:

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Find f(-11/5) if f(n) = 5n + 6.. A) -17. B) 5. C) -6
The concentration of platinum in a necklace is 7%. The necklace weighs 16 g. Find the amount of platinum in the necklace.
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(you have 30 seconds pause video if you need to)take 1000 and add 40 to it.now add another 1000. now add 30. add another 1000.Now add 20 now add another 1000. now add 10.what is the total?

Sean was at batting practice.He swung 25 times but only hit the ball 15 times

Answers

if u are asking how many times he missed it is 10 times bc 25 - 15 is 10

I need more help please .....

Answers

Answer:

The area is 2,600 cm^2

Step-by-step explanation:

The area of a rectangle is the product of its sides

And the difference between both areas is 1,400 cm^2 (P-Q)

Thus, we have it that;

40(3x-10) - (30(x + 15)) = 1,400

120x - 400 - 30x - 450 = 1400

120x -30x -400-450 = 1400

90x - 850 = 1400

90x = 1400 + 850

90x = 2,250

x = 2,250/90

x = 25

The area for painting P

is;

40 (3x - 10)

Substituting the value 25 for x

we have

40 ( 3(25) -10)

= 40(75-10)

40 * 65 = 2,600 cm^2

Check whether 6n can never end with the digit 2 for any natural number n

Answers

6 x   2 =   12
6 x   7 =   42
6 x 12 =   72
6 x 17 = 102

For any 'n' equal to ( 2 + any multiple of 5), 6n ends with the digit '2' .

The conjecture appears to be pretty well shot.

12.28 as a mixed number

Answers

12.28 is equal to 12 + 0.28. Since 0.28 is read as "twenty-eight hundredths", that's exactly how we write it in fractions: 28/100. Next, we need to simplify the fraction into its simplest form by looking for number that can be divided to both numerator and denominator. Hence, we have 12.28 = 12 + 28/100 = 12 + 7/25 = 12 7/25. Answer is 12 7/25.

Answer: 12 7/25

Just got this on khan and this was the right answer!

URGENT: The formula for the circumference of a circle is C=2 pi r. Use 3.14 for pi. Solve the formula for r. What is the radius of a circle with a circumference of 87 cm? Round the the nearest tenth. Show your work.
A- C over 2 pi; 13.9cm
B- 2 pi over C; 27.7cm
C- 2 pi C; 546.4cm
D- C - 2 pi; 80.7cm

The formula for the area of a triangle is A = bh over 2. Solve the formula for h. What is the height of a triangle that has an area of 25 mi^2 and a base with a length of 10 mi? Show your work. Round to the nearest tenth.

A- h=2Ab; 1.25 mi
B- h=2Ab; 2.5 mi
C- h=2A over b; 0.2 mi
D- h=2A over b; 5 mi