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Art [367]
3 years ago
6

What is the root of the quadratic equation x^2 - 8x + 16 = 0

Mathematics
1 answer:
Semenov [28]3 years ago
3 0

Answer:

(x - 4)(x - 4)

x = 4

Step-by-step explanation:

x² - 8x + 16

= (x - 4)(x - 4)

x - 4 = 0

x = 4

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There are 45 M&Ms in a standard size bag. At 360 calories per bag,
Artyom0805 [142]

Answer:

about 8 calories per M&M

Step-by-step explanation:

6 0
3 years ago
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Solve for a. a-50=24
valkas [14]

Answer:

74

Step-by-step explanation:

a-50 = 24

a-50+50 = 24+50

a = 74

4 0
3 years ago
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If k=[-4 | 2, 6 | -3] and m=[2 | 8, -2 | 5] what is x when 2x -k = m
marshall27 [118]

Answer:

  x = [-1 | 5, 2 | 1]

Step-by-step explanation:

We assume your notation is used to describe 2×2 matrices.

Solve for x:

  2x -k = m

  2x = m + k . . . . add k

  x = (1/2)(m +k) . . . . multiply by 1/2

Fill in the values:

  x = 1/2[2+(-4) | 8 +2, -2+6 | 5+(-3)]

  x = [-1 | 5, 2 | 1]

5 0
3 years ago
A sundae at an ice-cream shop costs $3, and each extra ounce of toppings costs
anyanavicka [17]

Answer:

The number of ounce of topping that can be get is 4 .

Step-by-step explanation:

Given as :

The cost of a sundae = $3

The cost for each extra ounce of toppings = $0.50

Let The number of ounce of topping = n

The total spending cost on sundae with n extra topping = $5

Now, According to question

The total spending cost on sundae with n extra topping = The cost of a sundae + The number of ounce of topping × The cost for each extra ounce of toppings

Or , $3 + n × $0.50 = $5

or, 3 + 0.50 n = 5

or , 0.50 n = 5 - 3

or, 0.50 n = 2

∴  n = \dfrac{2}{0.50}

I.e n = 4

So, The number of ounce of topping = n = 4

Hence The number of ounce of topping that can be get is 4 . Answer

7 0
4 years ago
PLEASE HELP ASAP!! WILL GIVE BRAINLIEST!!
zhenek [66]

Given is :

The area of the rectangular patio is = 130 square feet

Let the width of the patio be = x feet

As length is 3 feet more than the width, so the length is = x+3 feet

Now area of rectangle is = length * width

x(x+3)=130

x^{2}+3x=130

x^{2}+3x-130=0

x^{2}+13x-10x-130=0

x(x+13)-10(x+13)=0

(x-10)(x+13)=0

This gives either x-10=0 or x+13=0

x-10=0 ; x=10

x+13=0 ; x=-13 (neglect this negative value)

So, the width of the patio is = 10 feet

Length = 10+3 = 13 feet

7 0
3 years ago
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