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Step2247 [10]
3 years ago
14

PLEASE ANSWER BOTH QUICK

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0

Answer:

1.C

2.A

Step-by-step explanation:

dude trust me

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(-23, – 8) and (722 -8)
Andre45 [30]

-51 and 714

Step-by-step explanation:

-23-38=-51

722-8=714

7 0
3 years ago
Cho tam giác ABC vuông tại A &lt; góc B=a chứng minh: a) 1+<img src="https://tex.z-dn.net/?f=tan%5E%7B2%7D" id="TexFormula1" tit
dimaraw [331]
<h3><u>L</u><u>H</u><u>S</u><u>:</u><u>-</u></h3>

\\ \sf\longmapsto 1+tan^2A

\boxed{\sf tanA=\dfrac{sinA}{cosA}}

\\ \sf\longmapsto 1+\dfrac{sin^2A}{cos^2A}

\\ \sf\longmapsto \dfrac{cos^2A+sin^2A}{cos^2A}

\boxed{\sf cos^2A+sin^2A=1}

\\ \sf\longmapsto \dfrac{1}{cos^2A}

\\ \sf\longmapsto \dfrac{1}{1-sin^2A}

\\ \sf\longmapsto \dfrac{1}{1}-\dfrac{1}{sin^2A}

\\ \sf\longmapsto \dfrac{1}{sin^2A}

Hence verified

8 0
3 years ago
Define the function
miss Akunina [59]

Given that

g(x) = x^3 + x

the inverse g^{-1}(x) is such that

g\left(g^{-1}(x)\right) = g^{-1}(x)^3 + g^{-1}(x) = x

or

g\left(f(x)\right) = f(x)^3 + f(x) = x

Differentiating both sides using the chain rule gives

3f(x)^2f'(x) + f'(x) = 1 \\\\ f'(x) \left(3f(x)^2+1\right) = 1 \\\\ f'(x) = \dfrac1{3f(x)^2+1}

Then the derivative of <em>f</em> at 2 is

f'(2) = \dfrac1{3f(2)^2+1} = \boxed{\dfrac14}

7 0
2 years ago
An electrician earns 100 dollars for a project installing light fixtures. She must pay for the light fixtures herself and they c
4vir4ik [10]

Answer:

y = 100 - 2.5 x is the equation that represents her total profit from

the project

Step-by-step explanation:

The given is:

1. An electrician earns 100 dollars for a project installing light fixtures

2. She must pay for the light fixtures herself and they cost 2 dollars

   and 50 cents each

3. x represent the number of light fixtures and y represent her

  total profit

Her profit is the amount of money she has left over after paying for

the light fixtures

∵ The cost of each light fixtures is 2 dollars and 50 cents

- Let us change the cents to dollar

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Plzzzzzz help ASAP!!!!!!!!
Brut [27]
As we can see in the graph, if x = -3, y = 0.

If you want to also know the formula here it is: -3 + x = y.

Hope this helped! c:
3 0
3 years ago
Read 2 more answers
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