2 years ago

Help need please!!!

Mathematics

2 answers:

Assoli18 [71]2 years ago

7 0

3. A 2/5 of 20 is 8 so 8 vegetables are tomatoes.

Snowcat [4.5K]2 years ago

6 0

The answer and solving steps are in the picture, cause I can’t type it out

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Use a graph in a (-2π, 2π, π/2) by (-3, 3, 1) viewing rectangle to complete the identity.

yaroslaw [1]

First, notice that:

$2\tan (\frac{x}{2})=2\cdot(\pm\sqrt[]{\frac{1-cosx}{1+\cos x})}$

And in the denominator we have:

$1+\tan ^2(\frac{x}{2})=1+\frac{1-\cos x}{1+\cos x}=\frac{1+cosx+1-\cos x}{1+cosx}=\frac{2}{1+\cos x}$

then, we have on the original expression:

$\begin{gathered} \frac{2\tan(\frac{x}{2})}{1+\tan^2(\frac{x}{2})}=\frac{2\cdot\pm\sqrt[]{\frac{1-\cos x}{1+cosx}}}{\frac{2}{1+\cos x}}=\frac{2\cdot(\pm\sqrt[]{1-cosx})\cdot(1+\cos x)}{2\cdot(\sqrt[]{1+cosx})} \\ =(\sqrt[]{1-\cos x})\cdot(\sqrt[]{1+\cos x})=\sqrt[]{(1-\cos x)(1+\cos x)} \\ =\sqrt[]{1-\cos^2x}=\sqrt[]{\sin^2x}=\sin x \end{gathered}$

therefore, the identity equals to sinx

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8 months ago

Find the volume of a cylinder that has a diameter of 8 inches and is 20 inches tall.

Fiesta28 [93]

Answer:12063.72

Step-by-step explanation:

6 0

2 years ago

Add 1/4 and 5/8 by using the giant one to create a common denominator thanks

Sedbober [7]

Answer:

7/8

Step-by-step explanation:

1/4×2=2/8....2/8+5/8=7/8

3 0

2 years ago

Directions: type the correct answer in each box. Use the numerals instead of words.

NARA [144]

Answer:

Jersey: 85.75/100 X 80 = $68.60

Tennis Racket 55% = 49.05, 1%=0.89181818, 100% = 89.1818181 = $89.18

Archery = 94- 61.10 = 32.90, 32.90/94= 0.35

0.35 X 100 = 35%

6 0

2 years ago

PLEASEE HELP IM BEGGING YOU

devlian [24]

Answer: god it's hard, but i will try

6 0

2 years ago