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zloy xaker [14]
3 years ago
8

Delinda has 95 pencils. If 33 are blue, 41 are red,and 21 are green, how many pencils are red or green?

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

62

Step-by-step explanation:

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Answer:

B

Step-by-step explanation:

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3 years ago
How many triangles can be constructed with side lengths of 7.2 cm, 6.9 cm, and 12.8 cm?
Alika [10]

Answer:

One triangle

Step-by-step explanation:

-The triangle's dimensions are defined and fixed.

-Given the fixed dimensions, only one unique triangle can be constructed.

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5 0
3 years ago
A sinusoidal carrier wave has an amplitude of 5 volts, a frequency of 1MHz, and zero phase angle. Select the correct carrier wav
Vedmedyk [2.9K]

Answer:

The correct answer is b.

Step-by-step explanation:

The wave equation is given generally as:

c(x, t) = Acos(kx - wt)

Where A = amplitude

k = wave number

w = angular frequency.

x = horizontal distance moves by the wave.

t = time

The options show to us that the wave depends only on t and not (x, t).

Hence, the wave equation becomes:

c(t) = Acos(wt)

Given that:

A = 5 V

f = 1 * 10⁶ Hz

Angular Frequency, w, is given as:

w = 2πf

w = 2 * π * 1 * 10⁶ Hz

w = 2π(1 * 10⁶)

The wave equation becomes:

c(t) = 5cos(2*π*1*10⁶)

The correct answer is b.

6 0
3 years ago
What is the name of the symbol used to denote square root?
kiruha [24]
I believe the term is a "radical"
Hope this helps!
3 0
3 years ago
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The formula E= mgh, where E = gravitational potential energy, m = mass, g = gravity, and h = height, is used to calculate gravit
Sunny_sXe [5.5K]

Answer:

Option 2.   h = E/mg.

Step-by-step explanation:

E= mgh

mgh = E

Divide both sides by mg:

mgh / mg = E / mg

h = E/mg.

7 0
3 years ago
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