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2 years ago

Brainlyess

Mathematics

2 answers:

miv72 [106K]2 years ago

8 0

Answer:

Present age of Jose is 3 n, how old will he be in 3 years!?

3n+5

So, the answer is A

coldgirl [10]2 years ago

6 0

Answer:

$\huge\colorbox{violet}{✏﹏ \: ᴀɴsᴡᴇʀ \: }$

Present age of José = 3n

Age of José in 5 years

$= 3n + 5$

➳ <u>A. 3n + 5</u> is the correct answer.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

$\huge\red{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}$

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A news report states that the 90% confidence interval for the mean number of daily calories consumed by participants in a medica

ludmilkaskok [199]

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2 years ago

Plz solve PLZ PLZ PLZ PZL

Firlakuza [10]

Answer:

Step-by-step explanation:

A: No, because you can't switch signs of a number to another sign unless you change the number itself.

B: Yes. It has the same numbers and signs and the result is negative (there are an odd amount of negative signs)

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2 years ago

Find the least common denominator of the fractions 5/8, 1/18, 5/9, 9/14

OLga [1]

In order to find, Least common denominator for all of that fractions, you need to calculate the LCM of 8, 18, 9 , 14 ['cause they are denominators ]

It would be 494

So, Your Final Answer would be 494

Hope this helps!

7 0

2 years ago

1.) Evaluate the indicated function, where f(x) = x2 − 8x + 3and g(x) = 7x − 5.

noname [10]

Answer:

1) (f + g) (5) = 18, 2) (f + g) (1/2) = - 13/4, 3) (f - g) (-1) = 14, 4) (f * g) (7) = 456, 5) (f/g) (- 2) = - 3/4, 6) (g ○ f)(x) = 6 x - 23, (f ○ g)(x) = 6 x - 6, 7) $(g \circ f) (x) = \frac{9}{x} - 24$ , $(f \circ g) (x) = \frac{1}{x - 2} + 5$ , 8) (f ○ g)(5) = 3

Step-by-step explanation:

1) $(f + g) (x) = x^{2}-8\cdot x + 3 + 7 \cdot x - 5\\(f + g) (x) = x^{2} - x - 2\\(f + g) (5) = 18$

2) $(f + g) (x) = x^{2} - 7 \cdot x + 4 + 6 \cdot x - 7\\(f + g) (x) = x^{2} - x - 3\\(f + g) (\frac{1}{2} ) = - \frac{13}{4}$

3) $(f - g) (x) = x^{2} - 3 \cdot x + 4 - 4 \cdot x + 2\\(f - g) (x) = x^{2} - 7 \cdot x + 6\\(f - g) (-1) = 14$

4) $(f \cdot g) (x) = (x^{2}-4\cdot x + 3) \cdot (3\cdot x - 2)\\(f \cdot g) (7) = 456$

5) $(f / g) (x) = \frac{x^{2}-3\cdot x + 2}{4 \cdot x - 8} \\(f / g) (-2) = - \frac{3}{4}$

6) $(g \circ f) (x) = 3 \cdot (2 \cdot x - 8) + 1\\(g \circ f) (x) = 6 \cdot x - 23\\(f \circ g) (x) = 2 \cdot (3 \cdot x + 1) - 8\\(f \circ g) (x) = 6 \cdot x - 6$

7) $(g \circ f) (x) = 3 \cdot (\frac{3}{x} - 6) - 6\\(g \circ f) (x) = \frac{9}{x} - 24\\(f \circ g) (x) = \frac{3}{3 \cdot x - 6} + 5\\(f \circ g) (x) = \frac{1}{x - 2} + 5$

8) $(f \circ g) (x) = 2 \cdot (x^{2} - 5 \cdot x) + 3\\(f \circ g) (x) = 2 \cdot x ^{2} - 10 \cdot x + 3\\(f \circ g) (5) = 3$

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2 years ago

A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red

noname [10]

There was originally one red marble in the bag because at first the probability was 1 in 5 therefore the other 4 were blue and there was only 1 red

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2 years ago