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____ [38]
3 years ago
5

Using the elimination method, what would be the first step? x-4y=6 5x+y=8

Mathematics
1 answer:
enyata [817]3 years ago
7 0
X-4y=6. 5x+y=8

minus X from both sides

4y=6. 4x+y=8

minus y from both sides

3y=6. 4x=8

y=2

X=-2
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Which number is written in scientific notation?
Archy [21]

Answer:

4.5X10^-3

Step-by-step explanation:

Scientific notation formula= x.x times 10^x

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3 years ago
What is -20.3-14.34?
djyliett [7]

Answer:

-34.64

Step-by-step explanation:

-20.3-14.34

-34.64

8 0
3 years ago
4^4= pls i need some help
Alenkasestr [34]

Hey there!

4^4

= 4 • 4 • 4 • 4

= 4 • 4 ➡️ 16

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= 256

Answer: 256 ☑️

Good luck on your assignment and enjoy your day!

~ Amphitrite1040:)

7 0
2 years ago
Read 2 more answers
A home gardener estimates that 24 apple trees will have an average yield of 104 apples per tree. But because of the size of the
d1i1m1o1n [39]

Answer:

The farmer should plant 14 additional trees, for maximum yield.

Step-by-step explanation:

Given

Trees = 24

Yield = 104

x \to additional\ trees

So, we have:

Trees = 24 + x

Yield = 104 - 2x

Required

The additional trees to be planted for maximum yield

The function is:

f(x) = Trees * Yield

f(x) = (24 + x) * (104 - 2x)

Open bracket

f(x) = 24 * 104 + 104x - 24 * 2x - x * 2x

f(x) = 2796 + 104x - 48x - 2x^2

f(x) = 2796 + 56x - 2x^2

Rewrite as:

f(x) = - 2x^2 + 56x + 2796

Differentiate

f'(x) = -4x + 56

Equate f'(x) = -4x + 56 to 0 and solve for x to get the maximum of x

-4x + 56 = 0

-4x =- 56

Divide by -4

x =14

The farmer should plant 14 additional trees, for maximum yield.

5 0
3 years ago
Help me on this math promblem it’s also a missing and is effecting me
Vlad1618 [11]

Answer:

$20.42

Step-by-step explanation:

Given that:

Price of tablet computer = $255.25

Sales tax = 8%

Sales tax will be calculated as follows:

tax amount = 0.08 (255.25)

tax amount = $20.42

So Azim will spend $20.42 on the sales tax.

i hope it will help you!

4 0
3 years ago
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