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melamori03 [73]

3 years ago

5

A 25-pound bag of bird food costs $19.50.A 30-pound bag of the same bird food costs $5.18.A 26-ounce opackage costs $10.40. Whic

h package is the Best Buy

2 answers:

Lyrx [107]3 years ago

7 0

The 30 pound bag is the bust guys it's bigger and same price and in the long run would be better

Kaylis [27]3 years ago

7 0

30 pound bag because it's bigger and costs less than the others

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Which of the following reveals the minimum value for the equation 2x^2 − 4x − 2 = 0?

12345 [234]

Answer:

$2(x-1)^{2}=4$

Step-by-step explanation:

<u><em>The options of the question are</em></u>

2(x − 1)2 = 4

2(x − 1)2 = −4

2(x − 2)2 = 4

2(x − 2)2 = −4

we have

$2x^{2} -4x-2=0$

This is a vertical parabola open upward

The vertex represent the minimum value

The quadratic equation in vertex form is

$y=a(x-h)^2+k$

where

a is a coefficient

(h,k) is the vertex

so

Convert the quadratic equation in vertex form

Factor 2 leading coefficient

$2(x^{2} -2x)-2=0$

Complete the squares

$2(x^{2} -2x+1)-2-2=0$

$2(x^{2} -2x+1)-4=0$

Rewrite as perfect squares

$2(x-1)^{2}-4=0$

The vertex is the point (1,-4)

Move the constant to the right side

$2(x-1)^{2}=4$

3 0

3 years ago

Use induction to prove that 2 divides n^2 n whenever n is a positive integer

andrey2020 [161]

Answer:

that's wrong

Step-by-step explanation:

for n = 1

n^(2n)=1²=1

and 2 doesnt devide 1

5 0

3 years ago

What is the measure of ∅?<br><br>A. 2.5 π radians<br>B. 2.5 radians<br>C. 4 radians<br>D. 5 radians

natka813 [3]

Answer:

C. 4 radians

Step-by-step explanation:

$20=\frac{\pi (Ctrl.Angle)(5)}{180}$

Ctrl Angle = ∅

∅ = $\frac{(20)(180)}{5\pi } =\frac{3600}{5\pi } =\frac{720}{\pi }$

in radians:

∅ = $\frac{720}{180} =4$

Hope this helps

4 0

2 years ago

Two consecutive odd integers are such that one-third the smaller is greater than one-seventh of the larger one by 6. Find the nu

vaieri [72.5K]

Answer:

the number is 33 and 35 respectively

Step-by-step explanation:

The computation is shown below:

Let us assume X and X + 2 are the two consecutive odd integers

Now the equation is

(X ÷ 3) = ((X + 2) ÷ 7) + 6

(X ÷ 3) = (X + 2 + 6 × 7) ÷ 7

(X ÷ 3) = (X + 2 + 42) ÷ 7

(X ÷ 3) = (X + 44) ÷ 7

Now do the cross multiplication

7X = 3(X + 44)

7X = 3X + 132

4X = 132

X = 33

And, X + 2 = 33 + 2 = 35

hence, the number is 33 and 35 respectively

5 0

3 years ago

Whats equivalent to 3.5 x 100.

ioda

Answer:

350

Step-by-step explanation:

since there are 2 zeros in "100", move the decimal over 2 places

4 0

3 years ago