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Lyrx [107]
3 years ago
15

Thank you for any help!

Mathematics
2 answers:
Amanda [17]3 years ago
4 0

<u>Answer:</u>

D. No. (0, 0) satisfies y>2x-1 but does not satisfy y\leq x^2-4.

<u>Step-by-step explanation:</u>

We are given the following system of equations and we are to determine if (0, 0) is its solution or not:

y\leq x^2-4

y>2x-1

Substituting the given point (0, 0) in both the equations to check if it satisfies them.

y\leq x^2-4 \implies 0\leq (0)^2-4 \implies 0\leq -4 - False

y>2x-1 \implies 0 > 2(0)-1 \implies 0>-10 - True

Therefore, the correct answer option is D. No. (0, 0) satisfies y>2x-1 but does not satisfy y\leq x^2-4.

mash [69]3 years ago
3 0

The answer is D

0 is not less than or equal to -4, and in the second equation, 0 is greater than -1

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Answer:

Hey there!

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2 years ago
A grain silo has a circular base with an area of 260 square feet and is 21 feet tall What is the total volume?​
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Explanation:

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8 0
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There are 850 Douglas fir and Ponderosa pine trees in a section of forest bought by Karamazov Logging Co. The company paid an av
ki77a [65]

Answer:

350 Douglas fir, 500 Ponderosa pine

Step-by-step explanation:

 Let f = the number of fir trees

and p = the number of pine trees.

Then, we have two conditions:

(1)                                f + p = 850

(2)                  300f + 225p = 217 500

(3)                                    p = 850 -f         Subtracted f from each side of (1)

(4)       300f + 225(850 - f) = 217 500     Substituted (3) into (3)

      300f + 191 250 - 225f = 217 500     Distributed 225

                    75f + 191 250 = 217 500     Distributed the 7

                                    75f = 26 250      Subtracted 191 250 each side

(5)                                     f = 350

                             350 + p = 850           Substituted (5) into (1)

                                        p = 500          Subtracted 350 from each side

The company bought 350 fir trees and 500 pine trees.

Check:

(1) 350 + 500 = 850     (2) 300 × 350 + 225 × 500 = 217 500  

              850 = 850                  105 000 + 112 500 = 217 500

                                                                   217 500 = 217 500

OK.

8 0
3 years ago
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