Based on the dimensions of the shape, starting from the bottom right corner the boxes that make up the plan of the shape are: 13, 9, 10, 11, 7, 3 and 4.
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Answer:
(c) π/2
Step-by-step explanation:
We know the sine of an angle is the cosine of its complement, and vice versa. The complement of angle x is (π/2-x), so ...
sin(π/2 -x) = cos(x)
This is shown by the attached graph.
Answer:
- A. A neutrally-charged carbon atom contains 6 positively-charged protons and 6 negatively-charged electrons. CORRECT
- B. The average temperature in Cleveland, Ohio in December is 38∘F. On a particularly cold day last year, the temperature change was −38∘F from the previous day. CORRECT
- C. A model rocket flies 50 meters into the air. It falls 50 meters before it hits the ground. CORRECT
- D. The price of gold is $3.00 per ounce less than it was yesterday. WRONG
Explanation:
The <em>additive inverse property</em> is the property that states that the addtiion of a number with its negative is zero: b + (-b) = 0.
Let's see every choice:
- A. A neutrally-charged carbon atom contains 6 positively-charged protons and 6 negatively-charged electrons. CORRECT
6 positively'charged protons ⇒ charge +6
6 negatively charged electrons ⇒ charge -6
Total charge = +6 + (-6) = 0
The result is that the atom has a zero net charge.
- B. The average temperature in Cleveland, Ohio in December is 38°F. On a particularly cold day last year, the temperature change was −38°F from the previous day. CORRECT
Temperature of a day is 38° F
Change of temperature was - 38° F
Resulting temperature: 38° F + ( -38° F) = 0
- C. A model rocket flies 50 meters into the air. It falls 50 meters before it hits the ground. CORRECT
50 meters upward ⇒ +50 m
50 meters downward ⇒ -50 m
Final altitude = +50 m + (-50 m) = 0
- D. The price of gold is $3.00 per ounce less than it was yesterday. WRONG
Price of yesterday : x
Price of today: x - 3.00
This is not the application of the additive inverse property.
The Question above is incomplete.
Complete Question
Marisa painted one-half of her bedroom in three-fourths of an hour. At this rate, how long would it take her to paint the entire room? three-eighths of an hour eight-thirds of an hour four-sixths of an hour six-fourths of an hour
Answer:
six-fourths of an hour
Step-by-step explanation:
Let her entire room be equal to 1
From the above question
1/2 of her bedroom = 3/4 of an hour
1(Entire bedroom) = x hour
Cross Multiply
1/2 × x = 3/4 × 1
x = 3/4 / 1/2
x = 3/4 ÷ 1/2
x = 3/4 × 2/1
x = 6/4 hour
Hence, it would take Marissa six-fourths(6/4) of an hour to clean her entire room.
Answer:
9b-11m
Step-by-step explanation:
add 4b and 5b then add -4m and -7m