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soldier1979 [14.2K]
3 years ago
15

What is the measure of angle efg? a. 70 degrees b. 90 degrees c. 100 degrees d. 130 degrees

Mathematics
1 answer:
lana [24]3 years ago
4 0
We need the format to answer the question. what does it look like?

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victus00 [196]

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6.7i + 7.4j

Step-by-step explanation:

if the angle starts from the East (direction of positive x-axis)

then the y (j) component is 10*sin(42) = 6.7

and x (i) component is 10*cos(42) = 7.4

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2 years ago
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What number does 0.023 round to when rounded to the nearest hundredth?
iragen [17]

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.02

Step-by-step explanation:

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2 years ago
A matrix a is given. determine if the system ax = b (where x and b have the appropriate number of components) has a solution for
Alborosie
We can write the system in the following form:
\left[\begin{array}{cccc}5&-4&4&2\end{array}\right]  \left[\begin{array}{c}x_1\\x_2\\x_3\\x_4\end{array}\right]  =b
The above system is equivalent to the following equation:
5x_1-4x_2+4x_3+2x_4=b,\forall b\in\mathbb{R}
Of course, the above system has solution for any values of b since there is one equation and four variable, there is infinite number of solution each time. 
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3 years ago
A car and a truck left Washington, DC traveling in opposite directions. The car traveled 19 miles per hour faster than the truck
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Total speed was 1048 mi/(8 h) = 131 mi/h. The car was traveling at half this speed plus half the difference, (131 +19)/2 = 75 mi/h.

The truck was traveling at 75 mi/h -19 mi/h = 56 mi/h.
4 0
3 years ago
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