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beks73 [17]
3 years ago
5

5+8-2x2 find all the possibilities for each problem by placing parenthesis in different places

Mathematics
1 answer:
erastova [34]3 years ago
6 0
(5+8) - 2x2
5+8 - (2x2)
That’s all I can say Bc you can’t do
5+ (8-2) x2
Or vice versa <3
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Find two positive numbers satisfying the given requirements. The product is 216 and the sum is a minimum. (No Response) (smaller
fgiga [73]

Answer:

x1=\sqrt{216} \  and \ y1=\ \sqrt{216}

Step-by-step explanation:

Let the first number is x1 and other number is y1 then

x1 * y1 =216

Therefore

y1=\frac{216}{x1}

also there sum is

s1 =x1+y1....Eq(1)

Putting the value of y1  in the previous equation

s1\ =x1 + \frac{216}{x1}........Eq(2)

Differentiate the the Eq(2) with respect to x1 we get

\frac{ds1}{dx1} \ =\ 1+216*\frac{1}{-x1^{2} }

\frac{ds1}{dx1} \ =\ 1-\frac{216}{x1^{2} }\ =\ 0

{x1^{2} }\ =\ 216\\  x1=\sqrt{216}

Putting the value of X1 in Eq(1) we get

y1=\frac{216}{\sqrt{216} } \\y1=\frac{216*\sqrt{216} }{216} \\y1=\ \sqrt{216}

So x1=\sqrt{216} \  and \ y1=\ \sqrt{216}

6 0
4 years ago
What’s the frequency
SCORPION-xisa [38]
Frequency describes the number of waves that pass a fixed place in a given amount of time.
5 0
3 years ago
What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?
lbvjy [14]

Answer:

The equation of the quadratic graph is f(x)= - (1/8) (x-3)^2 + 3 (second option)

Step-by-step explanation:

Focus: F=(3,1)=(xf, yf)→xf=3, yf=1

Directrix: y=5 (horizontal line), then the axis of the parabola is vertical, and the equation has the form:

f(x)=[1 / (4p)] (x-h)^2+k

where Vertex: V=(h,k)

The directix y=5 must intercept the axis of the parabola at the point (3,5), and the vertex is the midpoint between this point and the focus:

Vertex is the midpoint between (3,5) and (3,1):

h=(3+3)/2→h=6/2→h=3

k=(5+1)/2→k=6/2→k=3

Vertex: V=(h,k)→V=(3,3)

p=yf-k→p=1-3→p=-2

Replacing the values in the equation:

f(x)= [ 1 / (4(-2)) ] (x-3)^2 + 3

f(x)=[ 1 / (-8) ] (x-3)^2 + 3

f(x)= - (1/8) (x-3)^2 + 3

4 0
3 years ago
Bradley earned 15$ painting a fence for 2 hours and $30 for pressure washing the patio and deck for 4 hours. Did he earn the sam
NISA [10]

Answer:

yes

Step-by-step explanation:

4 0
3 years ago
A bag has 3 pears,2 oranges,1 Banana and 4 pears.What’s the probability of picking a banana or a pear?
xeze [42]
The probability of picking a pear is 3 in 10
3 0
3 years ago
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