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seraphim [82]
2 years ago
10

translate the following into an equation: four less than twice a number is the sum of a number and seven

Mathematics
1 answer:
gregori [183]2 years ago
4 0

2n - 4 = n + 7
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The sun is about 93 times 2 the sixth miles from earth what is the distance written as a whole number
kenny6666 [7]

Answer:

93 million miles.

Step-by-step explanation:

6 0
2 years ago
What is the average rate of change of the function f(x)=2x+4 over the interval -4 ≤ x ≤ 1? Table
Tom [10]

Answer:

2

Step-by-step explanation:

the rate of change is measured as

\frac{f(b) - f(a)}{b-a} in the closed interval [ a, b ]

here [a, b ] = [- 4, 1 ]

f(b) = f(1) = 2 + 4 = 6

f(a) = f(- 4) = - 8 + 4 = - 4

average rate of change = \frac{6-(-4)}{1-(-4)} = \frac{10}{5} = 2

7 0
3 years ago
Use the​ power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonome
ratelena [41]

Answer:

x = 0.175\cdot (1-\cos 4\cdot \theta)

Step-by-step explanation:

Let use the following trigonometric identities:

\sin^{2}\theta = \frac{1-\cos 2\cdot \theta}{2} \\\cos^{2}\theta = \frac{1+\cos 2\cdot \theta}{2}

Then, the equation is simplified by substituting its components:

x = 1.40\cdot \left(\frac{1-\cos 2\cdot \theta}{2}  \right)\cdot \left(\frac{1+\cos 2\cdot \theta}{2} \right)

x = 0.35\cdot (1-\cos^{2}2\cdot \theta)

x = 0.35\cdot \sin^{2}2\cdot \theta

x = 0.35\cdot \left(\frac{1-\cos 4\cdot \theta}{2}  \right)

x = 0.175\cdot (1-\cos 4\cdot \theta)

7 0
3 years ago
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Hey! I'v been struggling with this question lately. Can someone just lend me a hand?
Dominik [7]
So, this problem is asking us to find the value of our variable u. 

How can you do this? By isolating the variable, or having only it on one side of the equals sign. 

Here's the step by step approach. It's just simple algebra and reverse order of operation (which is what you should do whenever you are solving for a variable).

\frac{u+88}{11} = 17

Multiply both sides by 11 to get rid of the 11 denominator.
u + 88 = 187

Then, subtract both sides by 88 to get u by itself.
u = 99

Therefore, u is equal to 99. 

6 0
3 years ago
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How was basic math used
dmitriy555 [2]
It was used to see how your basic math skills
4 0
2 years ago
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