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4 years ago

Please help i can’t figure this out

Mathematics

1 answer:

DedPeter [7]4 years ago

4 0

All of the following are true except A is equal to B complement

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What is 2 minus 2 in standard form

Nookie1986 [14]

Answer:

Step-by-step explanation:

Subtract 2 from 2.

2 - 2 = 0

8 0

3 years ago

Read 2 more answers

Find sec 2Theta in exact value

forsale [732]

Answer:

$sec(2\theta)=-\frac{5}{4}$

Step-by-step explanation:

we know that

step 1

Find $cos(\theta)$

we know that

$tan^2(\theta)+1=sec^2(\theta)$

we have

$tan(\theta)=3$

substitute

$3^2+1=sec^2(\theta)$

$sec^2(\theta)=10$

$sec(\theta)=\pm\sqrt{10}$

Remember that

Angle theta lie in Quadrant I

$sec(\theta)$ is positive

$sec(\theta)=\sqrt{10}$

Remember that

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

therefore

$cos(\theta)=\frac{1}{\sqrt{10}}$

step 2

Find $sin(\theta)$

we know that

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

$sin(\theta)=tan(\theta)cos(\theta)$

we have

$cos(\theta)=\frac{1}{\sqrt{10}}$

$tan(\theta)=3$

substitute

$sin(\theta)=(3)(\frac{1}{\sqrt{10}})$

$sin(\theta)=\frac{3}{\sqrt{10}}$

step 3

Find $cos(2\theta)$

we know that

$cos(2\theta)=2cos^2(\theta)-1$

we have

$cos(\theta)=\frac{1}{\sqrt{10}}$

substitute

$cos(2\theta)=2(\frac{1}{\sqrt{10}})^2-1$

$cos(2\theta)=\frac{1}{5}-1$

$cos(2\theta)=-\frac{4}{5}$

Remember that

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

therefore

$sec(2\theta)=-\frac{5}{4}$

8 0

3 years ago

Help me please and explain this to me

siniylev [52]

Answer:

y = -2x+1

Step-by-step explanation:

We can find the slope of the function by using the equation

m =(y2-y1)/(x2-x1)

We will use the points (3,-5) and (4,-7)

= (-7--5)/(4-3)

= (-7+5)/(4-3)

= (-2)/1

-2

We also know the y intercept ( when x=0 y=1) is 1

If we know the slope and the y intercept, we can use the slope intercept form of the equation of a line

y = mx+b where m is the slope and b is the y intercept

y = -2x +1

6 0

3 years ago

Help me

Rashid [163]

The answer to your question would be B because you divide 10 by 3.5 to get 3, then you would divide 12 by 3 to get 4. Multiply them together to get 14

4 0

3 years ago

David used exactly 8 cups of flour to make 6 loaves of bread. How many loaves of bread can he make with 12 cups of flour?

julia-pushkina [17]

ANSWER: David can make 9 loaves of bread.

EXPLANATION: Half of 8 = 4, half of 6 = 3

8 + 4 = 12 cups of flour, 6 + 3 = 9 loaves of bread.

7 0

3 years ago