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Whitepunk [10]
3 years ago
13

How many triangles can be constructed with angles measuring 60°, 60°, and 40°?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0

Answer:

None

Step-by-step explanation:

Because the 3 angles do not add up to 180 degrees.

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I need help with this answer
astra-53 [7]

Answer:

Yes, it is a linear expression because the highest power of x is 1.

3 0
3 years ago
Question 13
Mrac [35]

Answer:

71.6 degrees

Step-by-step explanation:

Given the vectors

u= <8,4> v = <9.-9> (5 points)

u*v = (8, 4)*(9, -9)

u*v = 8(9)+(4)(-9)

u*v = 72 - 36

u*v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+9²

|v|  = √81+81

|v|  = √162

Using the formula

u*v = ||u||v| cos theta

36 = √80(√162)cos theta

36 = √12960 cos theta

cos theta = 36/√12960

cos theta = 36/113.8

cos theta = 0.3162

theta = arccos(0.3162)

theta = 71.56 degrees

Hence the angle between the given vectors to the nearest tenth of a

degree is 71.6 degrees

5 0
2 years ago
Please help ik it’s a lottt but I’m really confused!
Juli2301 [7.4K]

Answer:

Question number 13 is 18

8 0
2 years ago
Read 2 more answers
A rectangular prism has a volume of 600 cubic inches.
choli [55]

Answer:

The length is 12 inches.

Step-by-step explanation:

The volume of a rectangular prism is given by:

V=LBH

It was given that; the rectangular prism has a volume of 600 cubic inches.

The height of the prism is 5 inches and the width is 10 inches.

We want to find the length of the rectangular prism.

We substitute V=600, H=5,and W=10 into the formula:

600=5×10×L

600=20L

L =  \frac{600}{50}

L = 12in

6 0
2 years ago
Which of the following triangles are impossible to draw? Choose all that apply.
Luda [366]
<span>These triangles are impossible:

a triangle with sides of 3 inches, 4 inches, and 8 inches
(the longest side is greater than the sum of the other 2 sides)

an obtuse equilateral triangle
(all angles in an </span><span>equilateral triangle are acute)

</span>
<span>a triangle with two right angles
The angles of ALL triangles must sum exactly to 180 degrees.  Two right angles sum to 180 degrees so the third angle would have to be zero degrees.



</span>
8 0
2 years ago
Read 2 more answers
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