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Sati [7]
3 years ago
11

Eight minus the product of two and a number x.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
8 0
The number x is a -8
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What is the domain of the function y = log(x + 3)?
nata0808 [166]

Find the domain of

y = log(x + 3)

Logarithms can only be taken for positive numbers. So you must have

x + 3 > 0

x > – 3          ✔

So the domain of the function is

D = {x ∈ R:  x > – 3}

or using the interval notation

D = (– 3, +∞)


I hope this helps. =)

9 0
3 years ago
Read 2 more answers
A ball is hurled in the air such that its horizontal (x) and vertical (y) shifts are given by the functions x(t) = 20t and y(t)
Viefleur [7K]

x(t) = 20t

y(t) = 40t - 5t^2

Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y

x(5) = 20(5) becomes x(5) = 100

y(5) = 40(5) - 5(5)^2 becomes y(5) = 200 - 125 and then y(5) = 75

The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75

Answer: 0.75

7 0
3 years ago
Write a number in which the digit 3 is ten times the value of the digit 3 in 9.431
IgorC [24]

Answer:

Step-by-step explanation:

One number would be

9.31

The 3 in this number is 3/10

The 3 in the given number is 3/100

3/10 is 10 times bigger than 3/100

3/10 = 0.3

3/100 = 0.03

0.03 * x = 0.3                   Divide both sides by 0.03

0.03/0.03 x = 0.3/0.03

x = 10

6 0
3 years ago
Complete the following direct proof:
anzhelika [568]
B. I hope this help please let me know if it's correct.
4 0
3 years ago
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What does p equal when p=210e^(0.0069*20)?
Korolek [52]
<span>p=210e^(0.0069*20)
'e' is a mathematical constant equal to 2.718281828459
</span>
<span>0.0069*20 = .138

e^.138 =
</span>
<span>2.718281828459^.138 =
</span>
<span> <span> <span> 1.1479755503 </span> </span> </span>
210 * <span>1.1479755503 =
</span>
<span> <span> <span> 241.074865563 </span> </span> </span>
5 0
3 years ago
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