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Elena-2011 [213]
3 years ago
9

In 1863, President Abraham Lincoln gave his famous Gettysburg Address. It starts, “Four score and seven years ago....” Four scor

e and seven is equal to 87. How many years are in a score? What year was President Lincoln referring to?
Mathematics
1 answer:
vichka [17]3 years ago
4 0

Answer: There are 20 years in a score. The year he is talking about is 1776

Step-by-step explanation:

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Rewrite the equation to solve for the speed of light, c. Use rational exponents instead of roots.
Simora [160]
E=mc^2 is one of the most recognizable equations in the world. In this task, you’ll attempt to understand it better. Let’s start with what the letters mean. The letter E stands for energy, the letter m stands for mass, and the letter c stands for the speed of light. The meaning of this equation is that you can completely convert mass into energy. 

c^2  = E/m
c = (E/m)^(1/2)
4 0
4 years ago
A line that passes through the point (-3, -6) has a slope of Which is another point on this
ratelena [41]

Answer: (3,3)

Step-by-step explanation:

8 0
3 years ago
First answer get the best marks ​
Sonja [21]

Answer:

Choice C

Step-by-step explanation:

-3.55g \le -28.4

Divide both sides by -3.55; remember that by dividing both sides of an inequality by a negative sign, you need to change the direction of the inequality sign.

\dfrac{-3.55g}{-3.55} \ge \dfrac{-28.4}{-3.55}

g \ge 8

Answer: Choice C

6 0
4 years ago
Read 2 more answers
Need help solving this problem down below.​
Veronika [31]

Answer:

1 / We have the area of a rectangle ABCD = 8 x 16 = 128 ft²

2 / Find the area of an isosceles Δ DEF:

The base of the isosceles ΔDEF => DF = DC- FC = 16 -12 = 4 ft

So the area of Δ DEF = 1/2 (DF x EH) = 1/2 (4 x 6) = 12 ft²

3 / Area of the irregular shape = area ABCB + Area DEF = 128 + 12 = 140 ft²

Step-by-step explanation:

3 0
3 years ago
1. How many students made an A (scored a 90% or higher)?
Ludmilka [50]

Answer:

28

Step-by-step explanation:

the highest is 30 subtract that by 2 because it is 2 spaces below and then your answer should be 28

8 0
3 years ago
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