All categories

2 years ago

Help with these math exercises, please!

Mathematics

1 answer:

lions [1.4K]2 years ago

4 0

1) (3-x) x (3+x)

2) 5(5-x) x (5+x)

3) (3v-wy) x (3v+wy)

4) 2(k-m) x (k+m) x (k^2+m^2)

5) (ab-4c) x (ab+4c)

Brainliest?

You might be interested in

Please help with this question

natita [175]

Answer:

$12\sin{(2\theta)}\cos{(\theta)}$

Step-by-step explanation:

The appropriate trig identity is ...

$\sin{a}+\sin{b}=2\sin{\left(\dfrac{a+b}{2}\right)}\cos{\left(\dfrac{a-b}{2}\right)}$

Here, you have a scale factor of 6 and a=3θ, b=θ. Filling in these values gives ...

$6\sin{3\theta}+6\sin{\theta}=12\sin{\left(\dfrac{3\theta+\theta}{2}\right)}\cos{\left(\dfrac{3\theta-\theta}{2}\right)}\\\\=12\sin{(2\theta)}\cos{(\theta)}$

8 0

2 years ago

Please help me solve this problem with step by step explanation.

Kisachek [45]

Answer:

Im not rally sure but maybe 5.71 , here is my explanation :

Step-by-step explanation:

Tan 55 =x/4

tan 55 = 1/42814

1/42814 = x /4

×=5.712592027 .

3 0

3 years ago

How much ceros have 5 million?

Mandarinka [93]

Answer:

6 zeros

Step-by-step explanation:

5000000

U 2 can help me by marking as brainliest.....

3 0

2 years ago

Read 2 more answers

Mel uses one fourth of a yard of ribbon to make a hair bow how many hair bows can mel make with 1 yard of ribbon

luda_lava [24]

Answer:

4 hair bow

Step-by-step explanation:

if 1/4 can make 1 hair bows you can make 4 hair bows

, it's simple 4/1=4

6 0

3 years ago

Read 2 more answers

36% of what number is 18? SHOW YOUR WORK

Murljashka [212]

So 36% of x is 18
percent is parts out of 100
36%=36/100=0.36
'of' can be translated as muitiply
0.36 times x=18
divide both sdies by .36
x=50
the number is 50

8 0

3 years ago

Read 2 more answers