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3 years ago

I need help with this question it's really important for a important grade pls help if can.

Mathematics

1 answer:

murzikaleks [220]3 years ago

8 0

Answer:

Check pdf

Step-by-step explanation:

Download pdf

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How do you do coordinates to prove that lines are perpendicular

marshall27 [118]

Answer:

Step-by-step explanation:

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3 years ago

A cruise ship has a large,

Arte-miy333 [17]

Answer:

$28.27m^2$

Step-by-step explanation:

To solve this problem, we can use the area of a circle formula as shown below:

$A=\pi r^2$

A = area

r = radius

First we need to find the radius.

The radius is half of the diameter. For this problem, the radius is going to be 3.

Now, plug the values into the equation:

$A=\pi (3^2)$

$A=28.27$

The window's area is $28.27m^2$

7 0

3 years ago

4r+8+5=-15-3r ANSWER NUMBER FORM NO WORDS AT ALL

wolverine [178]

Answer:

r = -4

Step-by-step explanation:

Step 1: Write out equation

4r + 8 + 5 = -15 - 3r

Step 2: Combine like terms

4r + 13 = -15 - 3r

Step 3: Add 3r to both sides

7r + 13 = -15

Step 4: Subtract 13 on both sides

7r = -28

Step 5: Divide both sides by 7

r = -4

7 0

3 years ago

Read 2 more answers

Need to get the values of each trig function using half angle formulas within the constraint

Marizza181 [45]

$\bf cot(u)=4\qquad \pi \ \textless \ u\ \textless \ \frac{3\pi }{2}\implies cot=\cfrac{-4}{-1}\cfrac{\leftarrow adjacent}{\leftarrow opposite}
\\\\\\
hypotenuse\implies \sqrt{(-4)^2+(-1)^2}\implies \sqrt{17}
\\\\\\
cos(\theta )=\cfrac{-4}{\sqrt{17}}\implies \cfrac{-4\sqrt{17}}{17}\\\\
-------------------------------\\\\
$

$\bf sin\left( \frac{u}{2} \right)=\pm\sqrt{\cfrac{1+\frac{4\sqrt{17}}{17}}{2}}\implies \pm\sqrt{\cfrac{\frac{17+4\sqrt{17}}{17}}{2}}\implies \boxed{\pm\sqrt{\cfrac{17+4\sqrt{17}}{34}}}
\\\\\\
cos\left( \frac{u}{2} \right)=\pm\sqrt{\cfrac{1-\frac{4\sqrt{17}}{17}}{2}}\implies \pm\sqrt{\cfrac{\frac{17-4\sqrt{17}}{17}}{2}}\implies \boxed{\pm\sqrt{\cfrac{17-4\sqrt{17}}{34}}}$

$\bf tan\left( \frac{u}{2} \right)=\pm\sqrt{\cfrac{\frac{17+4\sqrt{17}}{34}}{\frac{17-4\sqrt{17}}{34}}}\implies \boxed{\pm\sqrt{\cfrac{17+4\sqrt{17}}{17-4\sqrt{17}}}}$

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3 years ago

Evaluate 2/3 times -4 times 9 divided by -2 divided by 1/2

Ostrovityanka [42]

Answer:

Evaluated: 2/3 (or 0.6 repeating) -4 • 9 ÷ -2 ÷ 1/2 (or 0.5)

Equals: 36.6 (.6 is repeating)

Step-by-step explanation:

Just simplify the fractions and solved with calculator :)

4 0

3 years ago

Read 2 more answers

I need help with this question it's really important for a important grade pls help if can.​

I need help with this question it's really important for a important grade pls help if can.