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scoundrel [369]
3 years ago
13

PLEASE HELP QUICKLY❗️❗️❗️

Mathematics
2 answers:
baherus [9]3 years ago
8 0

Answer:

a

Step-by-step explanation:

Savatey [412]3 years ago
4 0

Answer:

C

Step-by-step explanation:

Can I have Brain List

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Which of the following represents the solution set to the equation 2x^(2-3)= 64
kolbaska11 [484]

Answer:

x =  \frac{1}{32}  \\

Step-by-step explanation:

{2x}^{(2 - 3)}  = 64 \\  {2x}^{ - 1}  = 64 \\  \frac{2}{x}  = 64 \\ x \times \frac{2}{x} = 64 \times x \\ 2 = 64x \\  \frac{2}{64}  =  \frac{64x}{64}  \\  \frac{1}{32}  = x \\

6 0
3 years ago
30 Yuri has two plum trees, A and B. in his garden
telo118 [61]

Answer:

42kg

Step-by-step explanation:

We are given the amount of plums produced from Tree A. We simply need to <u>find the amount produced by Tree B</u> and <u>add</u> the two numbers up.

Step 1:

Tree B produces 10% more than Tree A, which produces 20kg of plums:

B=\frac{110}{100} *\frac{20}{1} \\\\B=\frac{110}{5}=\\\\B=22

Ok! Tree B produces 22kg of plums. Let us find the total amount of plums Yuri gets from both trees.

Step 2:

Total=A+B\\\\Total=20+22\\\\Total=42

<u>Yuri gets 42 kg of plums from the trees.</u>

<u />

<em>I hope this helps! Let me know if you have any questions :)</em>

<em />

4 0
3 years ago
State which of the following sets of ordered pairs represent a function.
stich3 [128]
A function is an equation that has only one answer for y for every x. This means that:

Set A and Set C are functions because their y values don’t repeat.

Set B is NOT a function because the 2 in the y values repeats twice.

Hope I helped!
8 0
3 years ago
Combine like terms 4a2-3b2+ 4b + 10a2
jolli1 [7]

Answer:

14a² - 3b² + 4b

Step-by-step explanation:

Like terms are the terms that have similar stuff on it, like same variables, no variables, and stuff like that.

4a2-3b2+ 4b + 10a2

4a² and 10a² is similar. 4a² + 10a² = 14a²

Now, the equation is 14a² - 3b² + 4b. There is no more like terms left, so that is the answer.

Hope this helps!!

-Ketifa

4 0
3 years ago
Find the area of the region that lies under the parabola y=5x - x^2, where 1≤x≤4. I would definitely like to see some work :)
Elena L [17]

Answer:

  16.5 square units

Step-by-step explanation:

You are expected to integrate the function between x=1 and x=4:

  \displaystyle\text{area}=\int_1^4{(5x-x^2)}\,dx=\left.\left(\dfrac{5}{2}x^2-\dfrac{1}{3}x^3\right)\right|_{x=1}^{x=4}\\\\=\dfrac{5(4^2-1^2)}{2}-\dfrac{4^3-1^3}{3}=37.5-21=\boxed{16.5}

__

<em>Additional comment</em>

If you're aware that the area inside a (symmetrical) parabola is 2/3 of the area of the enclosing rectangle, you can compute the desired area as follows.

The parabolic curve is 4-1 = 3 units wide between x=1 and x=4. It extends upward 2.25 units from y=4 to y=6.25, so the enclosing rectangle is 3×2.25 = 6.75 square units. 2/3 of that area is (2/3)(6.75) = 4.5 square units.

This region sits on top of a rectangle 3 units wide and 4 units high, so the total area under the parabolic curve is ...

  area = 4.5 +3×4 = 16.5 . . . square units

4 0
2 years ago
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