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4 years ago

I do not get it can someone pls help me ill apreciate it

Mathematics

1 answer:

mina [271]4 years ago

4 0

One thing, Check your multiplication and dividing situation.

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Otis constructed a rectangle with a compass and straightedge.

trapecia [35]

B. square
C. Draw arcs on the circle with the compass set at r units.

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4 years ago

11.68 - 0.48 ÷ (-1.6) = need help I need a way to solve this problem

ExtremeBDS [4]

Step-by-step explanation:

11.68-0.48

= 11.20

11.20÷1.6

= 7.0 or 7

ahh this is the correct answer.

so if it helps don't forget to like and Mark me.

4 0

3 years ago

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In many cases the Law of Sines works perfectly well and returns the correct missing values in a non-right triangle. However, in

Agata [3.3K]

$\frac{\sin B}{b}=\frac{\sin A}{a} \\ \\ \sin B=\frac{b \sin A}{a} \\ \\ \sin B=\frac{13 \sin 29^{\circ}}{7.2} \\ \\ \boxed{m\angle B =\arcsin \left(\frac{65\sin 29^{\circ}{36} \right), 180^{\circ}-\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)}$

Considering the diagram. $\angle B$ is shown to be acute, so $\boxed{m\angle B=\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)}$ .

Angles in a triangle add to 180°, so $m\angle C= 151^{\circ}-\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right)$ .

Using the law of cosines,

$AB=\sqrt{13^2 + 7.2^2-2(13)(7.2)\cos \left(\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right) \right)} \\ \\ \boxed{AB=\sqrt{220.84-187.2\cos \left(\arcsin \left(\frac{65\sin 29^{\circ}}{36} \right) \right)}}$

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1 year ago

I don't understand the blank ones. Please reply (ASAP).

scoray [572]

11. 180-73 = 107
10. 180-107=73
12. 180-73=107
13. 5x + 20 + B = 180 -> B = 180 - 20 - 5x and 3x+66 + B = 180 -> 3x+66+ (180 - 20 - 5x) = 180 -> 222-180 = 2x -> x = 21
14. ABC = 5x + 20 = 5*21+20= 125
15. ABE = 3x+66 = 3*21+66 = 129

7 0

4 years ago

A theater has 20 rows of chairs. The first row has 16 chairs, the second has 18, the third has 20, and so on. In total, the thea

Lunna [17]

I would do it in Buhh I'm working so add all of them(16,18,20) together 6 times then add another 16 and 18 and you will get your answer.

5 0

3 years ago

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