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3 years ago

In the equation x^2 mx n = 0, m and n are integers. The only possible value for x is –3. What is the value of m ?

1 answer:

5 0

I am going to go with the assumption that your equation is $x^2+mx+n=0$ . If there is only one solution, then the equation must be a perfect square. So square $(x+3)$ to solve for the equation in the similar form that is given. $(x+3)^2=x^2+6x+9=0$ . So the variables match up perfectly in the equation, meaning that the value of m is 6, letter choice C.

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Check the picture below.

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24. Sarah went to the farmers market because she needed 5 more apples for her Granny’s jam recipe. The recipe calls for 32 apple

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4 years ago

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Please help me solve this

vekshin1

Answer:

Option C

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Since it's draining, it means it must start at a certain value and end at a maximum of 0 since water cannot ever be less than 0. Since it's original amount is 40, it can only start draining from 40 and end at max 0 hence 0 ≤ y ≤ 40

Topic: inequalities

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3 years ago

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Can someone help me with this pls!!!!!

almond37 [142]

Answer: 11.) -6. 12.) 4/5

For the square roots, there should be a plus&minus sign but my keyboard doesn't have that.

13.) 3 14.) 8

explanation: For a square root, you are looking for a number that was multiplied by itself to become the number under the radical.

11 is a bit tricky since there is a negative sign before the radical. 6×6=36 -6 × -6 = 36. It seems they want only the -6 here.

4/5 ×4/5 = 16/25

For cube root, you need the number that is multiplied by itself three times. 3×3×3 = 27 8×8×8=512

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3 years ago