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3 years ago

In 63, in which place is the 3? ones tens

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

The digit 3 is in the ones place

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If dy/dx = tan(x), then y=

Vikentia [17]

Dy/dx= tanx, can be answered directly using the derivatives of trigonometric functions but this is how the answer is derived
=(sinx/cosx) basic trigonometric function
= [cosx cox+sinxsinx]/cos^2x
=[cos^2x+sin^2x]/cos^2x
cos^2+sin^2x = 1 ; fundamental trigonometric identities
= 1/cos^2x; reciprocal relations
= sec^2x+C
The answer is letter B.sec^2x+C

6 0

3 years ago

Read 2 more answers

Please solve this question(:

scZoUnD [109]

Answer:

BD/DA = CE/EA

Step-by-step explanation:

8 0

2 years ago

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Please help me on these! I really don't get it and I have to get them done!

Mandarinka [93]

Hey there :)

All these shapes are known as a rhombus.
The are formula of a rhombus is $\frac{(side1)(side2)}{2}$

1st ) The area is given = 48 in²
The diagonals are 1) 8 in and 8 in = 16 in , 2) x in and x in = 2x in

Apply the formula to find x
$48=\frac{(16)(2x)}{2}$
48 = 16x

Divide by 16 on either side to isolate x
$\frac{48}{16}= \frac{16x}{16}$
3 = x

Check:
Area = $\frac{(8+8)(3+3)}{2}$
= $\frac{96}{2}$
= 48 in²

2nd ) Area is given = 48 ft²
The diagonals are 1) 4 + 4 = 8 ft , 2) x

Apply the formula to find x
48 = $\frac{(8)(x)}{2}$
48 = 4x

Divide by 4 on either side
$\frac{48}{4} = \frac{4x}{4}$
12 = x

Check:
Area = $\frac{(4+4)(12)}{2}$
= $\frac{96}{2}$
= 48 ft²

3rd ) Given diagonals are 19 ft and 38 ft
Area = $\frac{(19)(38)}{2}$
= $\frac{722}{2}$
= 361 ft²

6 0

3 years ago

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Find the number of distinguishable permutations of the letters PEPPERONI. NO LINKS!!!!

ohaa [14]

<h3>Answer: 30,240</h3>

This is is one value (and not two values separated by a comma) and it's slightly over 30 thousand.

========================================================

Explanation:

There are n = 9 letters in the word "PEPPERONI"

If we could tell all the letters apart, there would be 9! = 9*8*7*6*5*4*3*2*1 = 362,880 permutations, and that would be the answer.

However, we have repeated letters that we cannot tell apart. The P shows up a = 3 times, and the E shows up b = 2 times. So we need to divide by a!*b! = 3!*2! = 6*2 = 12 to correct for the overcounting. That leads to the final answer of (362,880)/(12) = 30,240

5 0

3 years ago

6 + 3x = 12 x - 15<br> Which value for x makes this equation true: 7/3, 3/7, 5/7 , or 7/5

pentagon [3]

Answer:

x = 7/3

Step-by-step explanation:

Step 1: Write equation

6 + 3x = 12x - 15

Step 2: Solve for <em>x</em>

Subtract 3x on both sides: 6 = 9x - 15
Add 15 to both sides: 21 = 9x
Divide both sides by 9: 21/9 = x
Simplify: 7/3 = x
Rewrite: x = 7/3

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

6 + 3(7/3) = 12(7/3) - 15

6 + 7 = 28 - 15

13 = 13

7 0

3 years ago

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