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Vsevolod [243]
3 years ago
11

Can some help me with this

Mathematics
2 answers:
lukranit [14]3 years ago
5 0
It’s true because you because x=5 so wherever you see an x just right 5 down instead then making it 4 times 5 which is 20 and 1 times 5 which is 5 then you add 15 which is 20 so it’s true
myrzilka [38]3 years ago
3 0

Answer:

x = 5

Step-by-step explanation:

4x = 1x + 15

subtract 1x from both sides

3x = 15

divide 3 from both sides

x = 5

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Natali5045456 [20]
The answer is 7/69.

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Now, there are 7 black-haired children left among 23 children. The probability of </span>randomly selecting black haired children for the second time is:
P2 = 7/23

Since we want both of these events to occur together, we will multiply their probabilities:
P = P1 * P2 = 1/3 * 7/23 = 7/69
6 0
3 years ago
What is the range of this data set? {43, 17, 12, 17, 19, 11, 17, 20, 30} 13 17 32 I don't know.
nekit [7.7K]

Answer:

Range is 32

Step-by-step explanation:

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8 0
2 years ago
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If your olive garden bill cost $27.98 and you left a 18% tip how much do you leave altogether?
yarga [219]

Answer:

39.69

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Step-by-step explanation:

3 0
3 years ago
Find the volume of the following cone. Use 3.14 for n and
fenix001 [56]
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3 years ago
Use the definition of a derivative to find f’(x).
tatyana61 [14]

Answer:

f'(x) = -\frac{9}{x^2}

Step-by-step explanation:

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ii) f'(x)  = $\lim_{h\to 0} \frac{f(x+h) - f(x)}{h} $  \hspace{0.2cm}

        = $\lim_{h\to 0} \frac{\frac{9}{x+h}  - \frac{9}{x} }{h}  =  \hspace{0.1cm} $\lim_{h\to 0} \frac{9x - 9(x+h)}{hx(x+h)} $ \hspace{0.1cm} =  \hspace{0.1cm}$\lim_{h\to 0} \frac{-9h}{hx(x+h)}  =  $\lim_{h\to 0} \frac{-h}{x(x+h)} = \frac{-9}{x^2}$

7 0
3 years ago
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