3 years ago

Which of the following method for making a proof does not involve the negation of a statement

Mathematics

1 answer:

s2008m [1.1K]3 years ago

8 0

We don't know what the answer choices are!!

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marie has $625 in a personal bank account, and then withdraws $14 per week. alex has $19 in a personal bank account, and then de

Margaret [11]

Answer:

You can use Unit rate to find the answer. (Divide)

Step-by-step explanation:

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3 years ago

replace the third equation by the sum of itself and -1 times the second equation x-2y-7z=17,-6x+4y+5z=-9,8x+7y=z=-4

VMariaS [17]

Answer:

$14x+3y-6z=5$

Step-by-step explanation:

$x-2y-7z=17$ --- 1

$-6x+4y+5z=-9$ --- 2

$8x+7y-z=-4$ ---3

-1 times the second equation = $-1(-6x+4y+5z=-9)$

= $6x-4y-5z=9$ --4

Now we are given that replace the third equation by the sum of itself and -1 times the second equation

So, New third equation = $8x+7y-z+6x-4y-5z=-4+9$

= $14x+3y-6z=5$

Hence the new third equation is $14x+3y-6z=5$

6 0

4 years ago

What is the simplest form of square root of -500?

butalik [34]

Answer:

8–√4⋅2−−−√ 4–√2–√ 22–√

8–√≈2.8284271247461903

Step-by-step explanation: im lazy ;/

3 0

3 years ago

Find two consecutive odd integers whose sum is 36.

miskamm [114]

2 consecutive odd integers...x and x + 2

x + (x + 2) = 36
2x + 2 = 36 <===

3 0

4 years ago

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Danielles hoop earring has a diameter of 4 centimeters. What is the radius?

Tanya [424]

Answer:

2 or 8

Step-by-step explanation:

If the radius of the circle is 4 cm, the diameter of the circle is 4 cm x 2, or 8 cm. If you have the circumference of the circle, divide it by pi or π to get the diameter.

8 0

3 years ago

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