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2 years ago

HELP!!!!! ILL give brainliest rn

Mathematics

1 answer:

valentinak56 [21]2 years ago

8 0

Answer:

Construct one angle bisector of the triangle

Step-by-step explanation:

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PLEASE HELP!! will mark brainliest!

puteri [66]

Answer:

1. Hypothesis: The ball is red

Conclusion: It will bounce higher

Converse: If the ball bounces higher, then it is red

2. Hypothesis: A plane contains two lines

Conclusion: They are coplanar

Inverse: If two lines are in a planes, then they are coplanar

3. Hypothesis: The light does not come on

Conclusion: The circuit is broken

Inverse: If the circuit is broken, then the light does not come on

4. Hypothesis: It is cold outside

Conclusion: You must wear your jacket

Inverse: If you must wear your jacket, then it is cold outside

5 0

3 years ago

Trigonometric Identities

bogdanovich [222]

$\bf \textit{symmetry identities}\\\\
sin(-\theta )\implies -sin(\theta )\qquad \qquad cos(-\theta )\implies cos(\theta )
\\\\\\also~recall\\\\ sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)
\\\\\\
sin^2(\theta)=1-cos^2(\theta)
\\\\
-------------------------------\\\\\
[1-cos(-t)][1+cos(t)]\implies [1-cos(t)][1+cos(t)]$

$\bf 1^2-cos^2(t)\implies 1-cos^2(t)\implies sin^2(t)\\\\
-------------------------------\\\\\
%Simplify each expression. (1−cos⁡(−t))(1+cos⁡(t)) = (1+sin(t))(1+sin(-t))= csc⁡(t)tan⁡(t)+sec⁡(−t) =
[1+sin(t)][1+sin(-t)]\implies [1+sin(t)][1-sin(t)]
\\\\\\
1^2-sin^2(t)\implies 1-sin^2(t)\implies cos^2(t)\\\\
-------------------------------\\\\$

$\bf csc(t)tan(t)+sec(-t)\implies \cfrac{1}{\underline{sin(t)}}\cdot \cfrac{\underline{sin(t)}}{cos(t)}+\cfrac{1}{cos(-t)}
\\\\\\
\cfrac{1}{cos(t)}+\cfrac{1}{cos(-t)}\implies \cfrac{1}{cos(t)}+\cfrac{1}{cos(t)}\implies \cfrac{2}{cos(t)}
\\\\\\
2\cdot \cfrac{1}{cos(t)}\implies 2sec(t)$

3 0

3 years ago

00:00 Select all the fractions that are equivalent to 2 / 5 Use the area models to help.

AleksAgata [21]

Answer:

this doesnt make sense but the answer is

rcpl 2/5 = 5/2 = 2 1/2

Step-by-step explanation:

2 1/2

8 0

3 years ago

Read 2 more answers

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number

vovikov84 [41]

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by

$P=n^2-2n-3$

where n is the number of key rings in thousands.

Find the number of key rings sold on a particular day when the total profit is $5,000.

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

$P=n^2-2n-3=5\\\\n^2-2n-8=0$

We have to calculate the roots of the polynomial we use the quadratic equation:

$n=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\n= \frac{-2\pm\sqrt{4-4*1*(-8)}}{2}= \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{36}}{2} =\frac{-2\pm6}{2} \\\\n_1=(-2-6)/2=-8/2=-4\\\\n_2=(-2+6)/2=4/2=2$

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

7 0

3 years ago

A weighted coin that comes up heads with probability 0.6 is flipped n times. find the probability that the total number of heads

malfutka [58]

Im pretty sure you don't need help with this.this is from a week ago

5 0

4 years ago