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3 years ago

What is cos 17pi/4 ?

Mathematics

1 answer:

AlexFokin [52]3 years ago

3 0

.14903143383 is your answer I used google cos calc to find my answer

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{(5²)} ³×5⁴}÷5⁷ simplify and express the following as exponent

Stels [109]

Answer:

The answer is 5³.

Step-by-step explanation:

You have to apply Indices Law :

${a}^{m} \times {a}^{n} ⇒ {a}^{m + n}$

${a}^{m} \div {a}^{n}⇒ {a}^{m - n}$

${ ({a}^{m} )}^{n} = {a}^{mn}$

So for this question :

$( {( {5}^{2}) }^{3} \times {5}^{4} ) \div {5}^{7}$

$= ( {5}^{6} \times {5}^{4} ) \div {5}^{7}$

$= {5}^{10} \div {5}^{7}$

$= {5}^{3}$

8 0

3 years ago

Please help I will give out brainliest

Nitella [24]

Answer:

i)x=0,x=1

ii)

$\frac{2}3} + \frac{\sqrt{40} }{6} \\\frac{2}3}-\frac{\sqrt{40} }{6}$

Step-by-step explanation:

so I did not use the graphs actually.

for the answer to question i), i wrote out the equation as given:

3x^2-3x+2=2

then, i subtracted the two from the right side of the equation to make the equation set equal to 0, and I got:

3x^2-3x+2-2=+2-2, which becomes 3x^2-3x=0

then, I used the quadratic method of taking out the greatest common factor, which in this case is 3x, and the equation becomes:

3x(x-1)=0

finally, for this equation, I set 3x=0 and x-1 =0 to get the solutions to this equation, as shown below

3x=0(divide both sides by 3 to get)x=0

x-1=0(add 1 to both sides to get)x=1

now for the second equation, I had no other choice but to use the quadratic formula to find the solutions.

so I set up the quadratic formula as shown:

$\frac{-(-4)+ or -\sqrt{(9-4)^2)-4(-2)(3)} }{2(3)}$

from there the equation gets simplified down to:

$\frac{4+ or -\sqrt{16-4(-6)} }{6}$

simplifying the formula even further gives us:

$\frac{4+ or -\sqrt{40} }{6}$

if we simplify the equation one last time, we get:

$\frac{2}{3} + or -\frac{\sqrt{40} }{6}$

therefore, the solutions to this equation are:

$\frac{2}{3} +\frac{\sqrt{40} }{6}\\ \frac{2}{3} - \frac{\sqrt{40} }{6}$

8 0

3 years ago

If a || b and m1 = 65°, what is m2? <br>m2 = ______

Ann [662]

Answer:

M2=65

Step-by-step explanation:

These two are congruent

congruent means- they are the same

so M1 is congruent to M2 and M3.....

5 0

3 years ago

Can someone please help me?

Irina18 [472]

I will try i had this unit last year, basically the diameter is 5 in this problem, which you multiply by pi (in this case I will use 3.14 as the shortened version since its on-going) which gives you 15.7, then you multiply that by 3 in this problem to get 47.1!

7 0

3 years ago

Read 2 more answers

A country has an area of approximately 8,400,000,000 square miles and has an approximate population of 210,000 people.

ArbitrLikvidat [17]

D: 210,000 times 40,000 = 8,400,000,000

7 0

3 years ago