3 years ago

In ΔDEF, e = 8.7 inches, ∠F=8° and ∠D=34°. Find the length of f, to the nearest 10th of an inch.

Mathematics

2 answers:

fomenos3 years ago

4 0

Answer:

1.8 in

Step-by-step explanation:

Serhud [2]3 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

Complete the explanation of how you would shade a model to show 2 x 2/3

Alekssandra [29.7K]

Answer:

Step-by-step explanation:

3 0

3 years ago

The year 2004 has the units digit equal to twice the thousands digit. How many years will it be before this next happens?

Valentin [98]

Step-by-step explanation:

the answer should be 1004

5 0

3 years ago

What is thirty two percent of fifty six

mojhsa [17]

Answer: 17.92

Step-by-step explanation:

32% of 56

Change to fraction

32 /100 x 56

Change to decimal

0.32 x 56

= 17.92

5 0

3 years ago

A parabola can be drawn given a focus of

Volgvan

Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

Directrix of the parabola is $y=10$ .

Let $(x,y)$ be any point on the parabola. Then, from the definition of a parabola,

Distance of $(x,y)$ from focus = Distance of $(x,y)$ from directrix.

Therefore,

$\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|$

Squaring both sides, we get

$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$

Hence, the equation of the parabola is $y=-\frac{1}{4}(x-2)^{2}+9$ .

4 0

3 years ago

Please someone help me

hram777 [196]

The answer is 57 inches

5 0

3 years ago