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2 years ago

7

Which two values of x are roots of the polnomial below?

1 answer:

Ipatiy [6.2K]2 years ago

8 0

Plug in the numbers into the formula opposite b plus or minus the square root of b^2 -4(a)(c) all over 2(a)
6+or - square root 6^2 -4(4)(1) all over 8
the answer choices are 6+ square root 20 over 8 and 6-square root 20 over 8
Sorry I can't figure out how to type it out better for you without all the symbols I need.
A and D

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Which expression is equivalent to cot t sec t?

Solnce55 [7]

Answer: $csc(t)$

Step-by-step explanation:

Alright, lets get started.

The given expression is given as :

$cot( t) \times sec (t)$

We know quotient identity as :

$cot(t)=\frac{cos(t)}{sin(t)}$

Similarly, we know reciprocal identity as :

$sec(t)=\frac{1}{cos(t)}$

lets plug the value of cot and sec in given expression

$\frac{cos(t)}{sin(t)} \times \frac{1}{cos(t)}$

cos will be cancelled, remaining will be

$\frac{1}{sin(t)}$

Using reciprocal identity again, that will equal to :

$csc(t)$ ................... Answer (A)

8 0

2 years ago

Solve the system of equations using substitution:<br> 6x – y = –15<br> X + 2y = 17

defon

Answer:

x = -1

y = 9

Step-by-step explanation:

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3 0

2 years ago

I need to find sec(theta)= 2(sqrt3)/3

Sloan [31]

Answer: 30° and 330°

<u>Step-by-step explanation:</u>

sec θ = $\frac{2\sqrt{3}}{3}$

sec θ = $\frac{1}{cos(\theta)}$

$\frac{1}{cos(\theta)}$ = $\frac{2\sqrt{3}}{3}$

cos θ = $\frac{3}{2\sqrt{3}}$

cos θ = $\frac{3}{2\sqrt{3}}(\frac{\sqrt{3}}{\sqrt{3}})$

cos θ = $\frac{3\sqrt{3}}{3*2}$

cos θ = $\frac{\sqrt{3}}{2}$

Look at the Unit Circle to see that cos = $\frac{\sqrt{3}}{2}$ at 30° and 330° ( which is equivalent to π/6 and 11π/6)

4 0

2 years ago

Read 2 more answers

Can anybody help me? No links please lol

sleet_krkn [62]

Answer:

60% OF 6 = 3.6

↓

OF means multiplicatin

60% will turn into a decimal which is

↓

0.6 x 6 = 3.6 :)

Hope this helped!

-Maddison <3

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

8.9× 10 to the power of 4

Wittaler [7]

Assignment: $\bold{Solve \ 8.9\cdot \:10^4}$

<><><><><>

Answer: $\boxed{\bold{89000}}$

<><><><><>

Explanation: $\downarrow\downarrow\downarrow$

<><><><><>

[ Step One ] Multiply

$\bold{10^4=10000}$

[ Step Two ] Rewrite Equation

$\bold{10000\cdot \:8.9}$

[ Step Three ] Multiply

$\bold{8.9\cdot \:10000=89000}$

[ Step Four ] Simplify

$\bold{89000}$

<><><><><><><>

$\bold{\rightarrow Rhythm \ Bot \leftarrow}$

7 0

2 years ago