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Yanka [14]
3 years ago
7

Solve the system by substitution y=x-8 y=2x-14

Mathematics
2 answers:
IrinaK [193]3 years ago
8 0

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(<em>6,-2)</em>

Equation Form:

<em>x=6,y=-2</em>

Step-by-step explanation:

marishachu [46]3 years ago
7 0

Answer:

x = 6

y = -2

Step-by-step explanation:

6 - 8 = -2

2 x 6 = 12 - 14 = -2

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There are mangoes and oranges in a basket in the ratio 7: 11. If the total number of fruits is 720, then how many mangoes are th
lbvjy [14]

Answer:

280 mangoes

Step-by-step explanation:

sum the parts of the ratio, 7 + 11 = 18 parts

Divide the total by 18 to find the value of one part of the ratio.

720 ÷ 18 = 40 ← value of 1 part of the ratio , then

7 × 40 = 280 ← number of mangoes

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identity property of division

Step-by-step explanation:

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Whats the lcm of 30, 45, 10
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There least common factor would be 5 since they are all divisible by 5.
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How many negative roots will this function have? f(x) = x^7 – 2x^4 + 7x^2 + 2x – 2<br> help plsss
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There are two negative roots to the provided polynomial function

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

<h3>What is polynomial?</h3>

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n

We have a polynomial function:

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

\rm f(x) =\left(x+1\right)\left(x^6-x^5+x^4-3x^3+3x^2+4x-2\right)

Using the zero product property:

\rm \left x+1\right = 0 \ \ \ or \left x^6-x^5+x^4-3x^3+3x^2+4x-2\right = 0

After solving:

x = -1, x = -0.853, and x = 0.418 (using the graph method)

Thus, there are two negative roots to the provided polynomial function

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

Learn more about Polynomial here:

brainly.com/question/17822016

#SPJ1

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2 years ago
What is the median of 36,14,21,39,11,2​
Usimov [2.4K]

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Step-by-step explanation:

21+39/2

=30

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