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grandymaker [24]
2 years ago
9

Classify the following triangle. Check all that apply

Mathematics
1 answer:
lubasha [3.4K]2 years ago
8 0

Answer:

A. Acute and B. Equilateral

Step-by-step explanation:

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Light travels at 3.0 x 108 km/s. How far does light travel in 5 minutes? A) 1.5 x 1010 km B) 1.5 x 1011 km C) 9.0 x 109 km D) 9.
MaRussiya [10]
<span>D) 9.0 x 10^10 km This is more an exercise in handling scientific notation than anything else. Since we have the distance that light travels in 1 second and we want to calculate how far it travels in 5 minutes, we must first calculate how many seconds are in 5 minutes. Simply multiplying 5 by 60 gives us 300 seconds. Now we need to multiply 300 by 3.0x10^8 km. So 300 * 3.0x10^8 = ? We could first convert 300 into scientific notion, but it's easier to just leave it along and assume that it's 300 x 10^0. So 300 times 3 is 900. And since 0 plus 8 is 8, we have as the answer: 900 x 10^8 But we're not done. The significand has to be greater than or equal to 1 and less than 10. So let's divide 900 by 100 and add 2 to the exponent. So we get 9 x 10^10 Finally, since our data had 2 significant figures, our result should have that as well. So let's add the 2nd digit getting: 9.0 x 10^10 So we know that light travels 9.0x10^10 km in 5 minutes, and that answer matches option "D" from the available choices.</span>
4 0
3 years ago
If a figure located at T(-3, -1), U(1, -2), V(2, 2), W(-1, 1) and is rotated 90∘ counterclockwise rotation about the origin, whi
damaskus [11]

Answer:

(1, - 3 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ), thus

T(- 3, - 1 ) → T'(1, - 3 )

3 0
3 years ago
Find the area of the trapezoid.
butalik [34]

Answer:

8 ft

Step-by-step explanation:

t = a + b/2 times 2

2 + 6 = 8

8/2 = 4

4 x 2 = 8

8 0
2 years ago
PLZ HELP i need the answer now
VARVARA [1.3K]

Answer:

1/5^9

Step-by-step explanation:

You keep the 5 the same

Then you subtract the exponents...

-6 - 3 = -9

Since it’s negative and you can’t have a negative exponent you have to put a 1 as the numerator. So...

1/5^9

5 0
3 years ago
Find the missing dimension of each triangle described Height: 7 in., area: 21 in2
leonid [27]
The basic dimensions of any triangle are its area, base, and height.
They're related by the area equation; the area is half of the base times the height, or:
A=\frac{1}{2} b h
We know the area and the height, so the missing dimension has to be the base. Let's set up an equation by substituting the values the problem gives into the area equation.
21=\frac{1}{2} \cdot b \cdot 7
Can you solve this equation for b?
6 0
3 years ago
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