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4 years ago

Please need this by the 16th

Mathematics

2 answers:

lukranit [14]4 years ago

8 0

Answer:

7/12= 35/60

7/15= 28/60

Pani-rosa [81]4 years ago

7 0

Answer:

Step-by-step explanation:

12 can be broken into 3*4

15 = 5*3

The least factors are

3*4*5 = 60

The lowest common denominator is 60

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How do you factorise this using DOPS/DOTS? 2(x + 3)^2-10

Margaret [11]

Answer:

Step-by-step explanation:

Hello,

$2(x+3)^2-10\\=2[(x+3)^2-5]\\=2[(x+3)^2-(\sqrt{5})^2]\\\\=2[(x+3+\sqrt{5})(x+3-\sqrt{5})]$

Hope this helps

4 0

3 years ago

Please help. I’m stuck

Kazeer [188]

Put the given value into the equation for x and you get the answer.

6 0

3 years ago

Read 2 more answers

Find the absolute maximum and absolute minimum values of f on the given interval.

anyanavicka [17]

The question is missing parts. Here is the complete question.

Find the absolute maximum and absolute minimum values of f on the given interval.

$f(x)=xe^{-\frac{x^{2}}{32} }$ , [ -2,8]

Answer: Absolute maximum: f(4) = 2.42;

Absolute minimum: f(-2) = -1.76;

Step-by-step explanation: Some functions have absolute extrema: maxima and/or minima.

Absolute maximum is a point where the function has its greatest possible value.

Absolute minimum is a point where the function has its least possible value.

The method for finding absolute extrema points is

1) Derivate the function;

2) Find the values of x that makes f'(x) = 0;

3) Using the interval boundary values and the x found above, determine the function value of each of those points;

4) The highest value is maximum, while the lowest value is minimum;

For the function given, absolute maximum and minimum points are:

$f(x)=xe^{-\frac{x^{2}}{32} }$

Using the product rule, first derivative will be:

$f'(x)=e^{-\frac{x^{2}}{32} }(1-\frac{x^{2}}{16} )$

$f'(x)=e^{-\frac{x^{2}}{32} }(1-\frac{x^{2}}{16} )$ = 0

$1-\frac{x^{2}}{16}=0$

$\frac{x^{2}}{16}=1$

$x^{2}=16$

x = ±4

x can't be -4 because it is not in the interval [-2,8].

$f(-2)=-2e^{-\frac{(-2)^{2}}{32} }=-1.76$

$f(4)=4e^{-\frac{4^{2}}{32} }=2.42$

$f(8)=8e^{-\frac{8^{2}}{32} }=1.08$

Analysing each f(x), we noted when x = -2, f(-2) is minimum and when x = 4, f(4) is maximum.

Therefore, absolute maximum is f(4) = 2.42 and

absolute minimum is f(-2) = -1.76

8 0

3 years ago

I need to know 21, picture attached

Mademuasel [1]

Answer:

(0.75) to the 3rd power is 0.421875

then multiply that by 240 and you get 101.25

rounded to the nearest 10th would be 101.3

Step-by-step explanation:

6 0

4 years ago

1 gal 3 c= _fl oz Convert the unit of capacity

babymother [125]

Answer:

152 fluid ounces

Step-by-step explanation:

there are 128 fluid ounces in 1 gallon. there are 24 fluid ounces in 3 cups. 128+24 is 152. :)

3 0

3 years ago