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djyliett [7]
3 years ago
5

2) To cook a cake, Roberta Alberta bought 54.8 grams of butter. Then she found out that she bought

Mathematics
1 answer:
elena55 [62]3 years ago
3 0
Answer: 48.687 grams

Explanation: You subtract the amount of “extra” butter (6.113) from the amount she bought (54.8). Brainliest??!
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Zacarías and Paz together have $756.80 if Zacarías has $489.59, how much does Paz have? Write and solve an addition equation to
Assoli18 [71]
Pat has $267.21. All you had to do was subtract the 2 numbers
3 0
2 years ago
1. Find the derivative with respect to x of x +1/x from first principle. <br>​
Murrr4er [49]

If you mean f(x)=x+\frac1x, then the derivative is

\displaystyle f'(x) = \lim_{h\to0} \frac{\left(x+h+\frac1{x+h}\right) - \left(x+\frac1x\right)}h \\\\ = \lim_{h\to0} \frac{(x+h)-x}h + \lim_{h\to0} \frac{\frac1{x+h} - \frac1x}h \\\\ = \lim_{h\to0} \frac hh + \lim_{h\to0} \frac{x-(x+h)}{hx(x+h)} \\\\ = \lim_{h\to0} 1 - \lim_{h\to0} \frac h{hx(x+h)} \\\\ = 1 - \lim_{h\to0} \frac1{x(x+h)} \\\\ = \boxed{1 - \frac1{x^2}}

If you mean f(x) = \frac{x+1}x = 1 + \frac1x, we know from above that

\displaystyle \left(\frac1x\right)' = \lim_{h\to0} \frac{\frac1{x+h}-\frac1x}h = -\frac1{x^2}

which leaves the constant term, whose derivative is

\displaystyle (1)' = \lim_{h\to0}\frac{1 - 1}h = 0

and so

f'(x) = -\dfrac1{x^2}

6 0
2 years ago
Which expression has a value of 22? A. 14 + 2 x 5. B. (14+2) x 5 C. 24 - 6÷ 3. D. (24 - 6) ÷ 3
zimovet [89]

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

A. 14 + 2 × 5 = 14 + 10 = 24 ≠ 22

B. (14 + 2) × 5 = 16 × 5 = 80 ≠ 22

C. 24 - 6 ÷ 3 = 24 - 2 = 22

D. (24 - 6) ÷ 3 = 18 ÷ 3 = 6 ≠ 22

<h3>Answer: C.</h3>
5 0
3 years ago
Read 2 more answers
What is 8-8 to the power of -1 ?
Aleksandr-060686 [28]
8-8^-1
=8-1/8  <<< 8*8=64 then 64-1=63
=63/8
in decimal(7.875)


4 0
3 years ago
Homework help:<br> Write answer in scientific notation..thanks<br> (4.3x10*3)*2
Alisiya [41]

Answer:

(4.3x10^3)^2

= 18.49 x 10^6

= 1.849 x 10^7


Hope this helps you!


8 0
3 years ago
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