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vesna_86 [32]
2 years ago
9

Please can you help me​

Mathematics
2 answers:
aleksley [76]2 years ago
5 0

Answer:

1. 47°

2. 60°

3. 37°

4. 130°

5. 38°

Step-by-step explanation:

2. an equilateral triangle is a triangle in which all three sides have the same length. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 180 / 3 = 60°

Zanzabum2 years ago
3 0
A= 47
b=60
c=37
d=130
e=38
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Please help me now plz <br> I will mark you brainliest
jek_recluse [69]

Answer:

The vertex angle is 180-(60+75)=45.

k/sin75=900/sin45 so k=900sin75/sin45=1229km approx.

Step-by-step explanation:

6 0
3 years ago
Is 9.88 in scientific notation?
Vadim26 [7]
9.88 • 10°
^
|
Ten to the power of zero
4 0
3 years ago
Solve 5x + 14 = k for x​
Zepler [3.9K]

Answer:

x = 1/5(k-14)

Step-by-step explanation:

5x + 14 = k

Subtract 14 from each side

5x+14-14 = k-14

5x = k-14

Divide by 5

5x/5 = 1/5(k-14)

x = 1/5(k-14)

7 0
3 years ago
The pyramid shown has a height of 14 inches and a base area of 60 in2. Find the volume of the pyramid.
Kamila [148]

Volume of pyramid is 280 in^{3}.

The pyramid has a height 14 inches and a base area of 60 in2.

What is volume?

Volume is a three - dimensional quantity that is used to measure the capacity of a solid shape.

Volume of the pyramid = Area base X \frac{height}{3}

                                    = 60.\frac{14}{3}

                                    = 280 in^{3}

So the volume of pyramid = 280 in^{3}

Learn more about the Volume visit:

https://brainly.in/question/609711

#SPJ1

8 0
2 years ago
The graph below shows the height of a tunnel f(x), in feet, depending on the distance from one side of the tunnel x, in feet:
denis23 [38]
Part A) x-intercepts simply show that when the value of the function is zero. Vertex coordinates show that when the function obtains its maximum value. When x=50, function obtains its maximum value and it's 75. The function is increasing in the interval (0, 50) and decreasing in the interval (50, 100). In regard to the height and distance of the tunnel, these numbers show that decreasing and increasing intervals are symmetric. Each number from the intervals has its own pair in the corresponding interval and they are located in the same distance from the midpoint (50,75)

Part B) In order to calculate the average rate of change, we can first write the function. Using the information about the x-intercept and the vertex coordinates, we find that our function is f(x)=-0.03x^{2}+3x.
Plugging 15 and 35 in x, we can find the values of the function, i.e. 
f(15)=38.25 and f(35)=68.25.
Then, the average change is \frac{68.25-38.25}{35-15}=1.5
4 0
3 years ago
Read 2 more answers
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