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3 years ago

How could I simplify k+m2−4n−3m2+k ? PS. SHOW YOUR WORK

1 answer:

7 0

k+m2−4n−3m+k=k+m2+−4n+−3m+kCombine Like Terms:=k+m2+−4n+−3m+k=(m2)+(k+k)+(−3m)+(−4n)=m2+2k+−3m+−4nAnswer:=m2+2k−3m−4n

Hope its help :)

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HELP!!! Simplify cos^2 0 -1/ 4sin^2 0?

Shkiper50 [21]

We need to simpify the given expression. The given expression to us is ,

Given Expression :-

$\sf\implies \dfrac{ cos^2\theta -1}{4 \ sin^2\theta }$

Using Identity :-

$\sf\implies \red{ sin^2\theta + cos^2\theta = 1}$

So that :-

$\sf\implies - sin^2\theta = cos^2\theta -1$

We have :-

$\sf\implies \dfrac{ cos^2\theta -1}{4 \ sin^2\theta } \\\\\sf\implies\dfrac{ - sin^2\theta}{4sin^2\theta}=\boxed{\sf -\dfrac{1}{4}}$

Hence the required answer is -1/4. 

5 0

3 years ago

Deprina buys a large cup of coffee for $4.70 on her way to work everyday. If there are 24 workdays in the month, how much does D

Allisa [31]

She will spend 112.8
24 times 4.70 equals 112.8

8 0

3 years ago

I’am between 750 and 850. I have 3 ones and no tens.

il63 [147K]

Maybe something like 811.1?

7 0

4 years ago

Mr. Seidel filled up his 14-gallon gas tank for $44.26. What was the price per gallon of gas - to the nearest hundredth?

Nataly_w [17]

Answer:

$3.616

Step-by-step explanation:

4 0

3 years ago

Find the lateral area and the surface area of the right cone. Round your nearest answers to the nearest hundredth

S_A_V [24]

Step-by-step explanation:

Given that,

The height of the cone, h = 24 cm

The radius of the cone, r = 10 cm

The slant height of the cone is :

$l=\sqrt{h^2+r^2} \\\\l=\sqrt{24^2+10^2} \\\\l=26\ cm$

The lateral area of the cone is given by :

$A=\pi rl\\\\=3.14\times 10\times 26\\\\=816.4\ cm^2\approx 816\ cm^2$

The surface area of the cone is given by :

$A=2\pi rh\\\\=2\times 3.14\times 10\times 24\\\\=1507.2 \approx 1507\ cm^2$

5 0

3 years ago