1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Veseljchak [2.6K]
3 years ago
9

In ΔDEF, the measure of ∠F=90°, the measure of ∠D=10°, and EF = 94 feet. Find the length of DE to the nearest tenth of a foot.

Mathematics
1 answer:
Stolb23 [73]3 years ago
8 0

Answer:

x=\frac{94}{\sin 10}=541.3244\approx 541.3\text{ feet}

x=

sin10

94

​

=541.3244≈541.3 feet

Step-by-step explanation:

You might be interested in
Explain the error Tina says that 6:8 is equivalent to 36:64 what did tina do wrong
brilliants [131]
Tina said that 6:8 is equal to 36:64.
It's wrong. It should be 48:64. Because just like a fraction, whatever you multiply in the bottom, you do to the top.
8 0
3 years ago
Read 2 more answers
Describe the graph of the function f(x) = 2x^3 +14x^2 +13x +6. Include the y-intercept, x-intercepts, and the shape of the graph
vovikov84 [41]

f(x) = 2x^{3} + 14x^{2} + 13x + 6

The graph is attached below.

In order to find the y-intercept, check the graph and see where it hits the y-axis, so in this case the y-intercept would be  at (0,6).

To find the x-intercept, check the graph and see where it hits the x-axis, and here it hits at x = -6.


3 0
3 years ago
14x=x^2-15<br><br> find the value of x
hram777 [196]

Answer: x=-1, 15

Step-by-step explanation:

x^2 -14x-15=0\\\\(x-15)(x+1)=0\\\\x=-1, 15

5 0
2 years ago
If the coordinates of the endpoints of a diameter of the circle are​ known, the equation of a circle can be found.​ First, find
Evgesh-ka [11]

Answer:

The equation of the circle is (x+3)^2+(y-5)^2 = 17

Step-by-step explanation:

The complete question is

If the coordinates of the endpoints of a diameter of the circle are​ known, the equation of a circle can be found.​ First, find the midpoint of the​ diameter, which is the center of the circle. Then find the​ radius, which is the distance from the center to either endpoint of the diameter. Finally use the​ center-radius form to find the equation.

Find the center-radius  form of the circle having the points (1,4) and (-7,6) as the endpoints of a diameter.

Consider that, if both points are the endpoints of a diameter, the center of the circle is the point that is exactly in the middle of the two points (that is, the point whose distance to each point is equal). Given points (a,b) and (c,d), by using the distance formula, you can check that the middle point is the average of the coordinates. Hence, the center of the circle is given by

(\frac{1-7}{2}, \frac{4+6}{2}) = (-3,5).

We will find the radius. Recall that the radius of the circle is the distance from one point of the circle to the center. Recall that the distance between points (a,b) and (c,d) is given by \sqrt[]{(a-c)^2+(b-d)^2}. So, let us use (1,4) to calculate the radius.

r = \sqrt[]{(1-(-3))^2+(4-5)^2} = \sqrt[]{17}.

REcall that given a point (x_0,y_0). The equation of a circle centered at the point (x_0,y_0) is

(x-x_0)^2+(y-y_0)^2 = r^2

In our case, (x_0,y_0)=(-3,5) and r=\sqrt[]{17}. Then, the equation is

(x-(-3))^2+(y-5)^2 = (x+3)^2+(y-5)^2 = 17

4 0
3 years ago
2x^2 / x^2 - y^2 - x^2 / xy - y ^ 2​
Juliette [100K]

Answer:

2 - 2y^2 - x/y

Step-by-step explanation:

2x^2/x^2 = 2

and

x^2/xy = x/y

therefore

2x^2/x^2 - y^2 - x^2/xy - y^2

= 2 - y^2 - x/y - y^2

= 2 - y^2 - y^2 - x/y

= 2 - 2y^2 - x/y

6 0
3 years ago
Other questions:
  • How many pairs of whole numbers can you find that have a sum of 12?
    14·1 answer
  • 1+4=5 2+5=12 3+6=21 8+11=?
    9·1 answer
  • a grocery store charges 1.25$ for every 3/4 pound of chocolate purchased. How much will the store charge a customer who purchase
    7·1 answer
  • Suppose you have data that shows that 12% of athletes test positive for steroids. You also know that 11% of athletes test positi
    13·2 answers
  • 1.98 subtracted by 0.99
    10·2 answers
  • What method can be used to prove the triangles below are congruent?
    11·1 answer
  • If a distribution for a quantitative variable is thought to be nearly symmetric with very little variation,and a box and whisker
    9·1 answer
  • Quick please no links or anything just the straight up answer
    5·1 answer
  • Can someone please answer this? I'll mark brainiest if correct, it's for a quiz.
    7·1 answer
  • Giselle works as a carpenter and as a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!