3 years ago

What method can be used to prove triangles congruent?

Mathematics

1 answer:

Lostsunrise [7]3 years ago

6 0

Answer:

SAS I hope this helped you:)

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Quadratic equation. Find the value of m so that the roots of the equation (4 - m) x^2 + (2m + 4)x + (8m + 1) = 0 may be equal.

nikitadnepr [17]

The quadratic has one root with multiplicity 2 if the discriminant is 0, which is

$(2m+4)^2-4(4-m)(8m+1)$

(That is, for a quadratic $ax^2+bx+c$ , the discriminant is $b^2-4ac$ .)

Set the discriminant equal to 0 and solve for $m$ :

$(2m+4)^2-4(4-m)(8m+1)=0$

$4m^2+16m+16+32m^2-124m-16=0$

$36m^2-108=0$

$36m(m-3)=0$

$\implies m=0\text{ or }m=3$

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3 years ago

are this calculations correct? 65-32=34 and 47+39=86.Show how you could check this using the inverse.

Alexxandr [17]

STEP 1: Stick a "y" in for the "f(x)" guy:STEP 2: Switch the x and y. ( because every (x, y) has a (y, x) partner! ):STEP 3: Solve for y:STEP 4: Stick in the inverse notation, continue. 1 2 3.
these are the steps and that is not correct

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3 years ago

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What is the final amount if 1548 is increased by 5% followed by a further 6% increase?

stiv31 [10]

Answer:

1,718.28

Step-by-step explanation:

1,548, percentage increased by 11% (percent) of its value = 1,718.28

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3 years ago

Elizabeth and Daniel are starting competing coffee roasting businesses. They each first buy a large coffee roasting machine and

statuscvo [17]

What's the question?

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3 years ago

Please solve -(6x+7)+8=19

JulijaS [17]

-6x-7+8=19 and then add your like terms so it’s -6x+1=19 and then subtract one on both sides so it’s -6x=18 so x=-3

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3 years ago