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3 years ago

If you flip a pair of coins 48 times, how many times are you most likely to get 2 heads.

Mathematics

1 answer:

pentagon [3]3 years ago

3 0

But actually its based on your luck

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There is only one angle measure , ∡JHF , which is 34 degrees . I have to find the measure of angle ∡FJH .

Minchanka [31]

the assumption here being that both lines JH and FH are tangent lines to the circle, if that's the case the external angle of 34° is the angle made by the equal tangents, meaning the triangle is an isosceles with twin sides.

In an isosceles triangle the twin sides make also twin angles, so the angles at J and F are twins, and they'd be 180° - 34° = 146° total, since they're twins, each one takes half, or 73°.

5 0

3 years ago

Read 2 more answers

Please help thanks :)

natta225 [31]

Answer:

Distributive Property

Step-by-step explanation:

$x(8x+3y)\\We\ multiply\ the\ term\ outside\ brackets\ with\ terms\ inside\ the\ bracket\ equally,\\through\ the\ distributive\ property\ method\ .\\\\Hence,\\x(8x+3y)\\=8x*x+3y*x\\=8x^2+3xy$

8 0

3 years ago

To the nearest hundredth, what is the length of line segment AB?

Vesnalui [34]

Answer:

5.83 units

Step-by-step explanation:

See attached picture. You can use the Pythagorean Theorem. I added some lines to show the legs of a right triangle. AB is the hypotenuse.

$3^2+5^2=(AB)^2\\\\9+25 = (AB)^2\\\\34=(AB)^2\\\\AB=\sqrt{34} \approx 5.83$

5 0

2 years ago

The widths of two similar rectangles are 16 cm and 14 cm. What is the ratio of the areas?

aliya0001 [1]

Answer:

8:7 and 64:49

Step-by-step explanation:

If the widths of two similar rectangles are 16 cm and 14 cm, the ratio of the areas are 8:7 and 64:49.

8 0

3 years ago

In triangle ABC, side AB has a length of 8 cm and side BC has a length of 5 cm. If the triangle has an area of 10 square centime

Vesna [10]

Recall the following formula:

Given a triangle with side lengths a, b, and c. Let the measure of the angle between sides of length a and c be B.

Then, the area of the triangle is given by :

$Area= \frac{1}{2}\cdot a\cdot c \cdot \sin B$ .

In our example we have: Area=10 square cm, a=8 cm, c=5 cm, and we want to find the measure of the angle between the 2 sides a and c.

Substituting in the formula we have:

$10= \frac{1}{2}\cdot 8\cdot 5 \cdot \sin B$

Thus, $10=20 \sin B$ , which means $\sin B = \frac{1}{2}$ .

$\frac{1}{2}$ is the sine of $30^{\circ}$ , but also $150^{\circ}$ .

Answer: both 30, and 150 degrees are possible

8 0

3 years ago