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3 years ago

How many is 7= 12 + 5h With procedure

1 answer:

8 0

H= -1 here's why:

7 = 12 + 5h

First you subtract 12 from both sides then the equation would look like:

-5 = 5h

Then you would divide the equation by 5 from both sides it would then look like:

-1 = h

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How many different ways can the letters of “Knitting” be arranged

antiseptic1488 [7]

There are actually 5040 ways of arranging the letter knitting.

3 0

2 years ago

Please someone help me...

Savatey [412]

use $a^2-b^2=(a+b)(a-b)$

to get $(\cos^3A-\sin^3A)(\cos^3A+\sin^3A)$

then use $a^3+b^3=(a+b)(a^2+b^2-ab)$

and $a^3-b^3=(a-b)(a^2+b^2+ab)$

also, $\sin^2\theta+\cos^2\theta=1$

to get $(\cos A-\sin A)(1+\sin A\cos A)(\cos A+ \sin A)(1-\sin A\cos A)$

then again use the first identity In both pairs, i.e.

$(\cos A-\sin A)(\cos A+ \sin A) \cdot (1+\sin A\cos A)(1-\sin A\cos A)$

to get $\cos 2A (1-\sin^2A\cos^2A)$

multiply and divide by 4 to get the RHS.

because, $\sin(2A)= 2\sin A \cos A$

squaring both sides, $\sin^2 (2A)=4\sin^2A\cos^2A$

3 0

3 years ago

Read 2 more answers

-6u > -42 u is greater than what?

Charra [1.4K]

simplify

-6u>-42

switch signs when dividing negative numbers

u<7

so, u is actually smaller than 7

7 0

2 years ago

What is the distance between the set of points (5,9) and (-7,-7)

kiruha [24]

Answer:

The answer is

<h2>20 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(5,9) and (-7,-7)

The distance between them is

We have the final answer as

<h3>20 units</h3>

Hope this helps you

3 0

3 years ago

What is the place value of the 9 in 67.49?

lidiya [134]

Hundredths is correct

3 0

3 years ago