3 years ago

4xy-28x = 16 work and answer please

Mathematics

1 answer:

algol [13]3 years ago

6 0

Lol do your own work. Pay attention in class, it'll pay off ;)

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3 years ago

Find the consecutive positive odd integers whose product is 99

dezoksy [38]

Answer:

9 and 11

Step-by-step explanation:

So let's say that the first integer is x.

That means that the second integer is x+2, since it us the next odd number.

This problem can be easily solved with our mind the answer is 9 and 11, but I'll show you the steps to slove this.

We make an equation using these two numbers:

$(x)*(x+2)=99\\$

Now all we gotta do is solve for x:

$x^2 +2x = 99\\x^2+2x-99=0$

Now we use either splitting the middle term or quadratic formula:

$x^2+11x-9x+99=0\\x(x+11)-9(x+11)=0\\(x+11)(x-9)=0$

Now we split each terma and solve for x:

$(x-9)=0\\x=9\\(x+11)=0\\x=-11$

Now the question states <em>positive </em>so we can rule out x = -11.

Now we have the first integer x = 9,

the second integer is x+2 = 9+2 =11

So the two consecutive positive odd integers are 9 and 11

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3 years ago

Multiply: (−3x − 6)(3x2 − 6x + 3)

zavuch27 [327]

The answer is -9 • (x + 2) • (x - 1)2

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Brenda bought a new computer $380 .she made a payment $140 and got a discount of $30 .Her mother paid 1/2 of the balance . How m

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Answer:

She needs to pay $20 more.

Step-by-step explanation:

Mothers payment: $360 divided by 2 = $190 left for Brenda

Brenda + discount payments: $190 - $140 = $50

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Answer:

1. "Fasting blood sugar" is a lab test usually done six to eight hours after eating. The normal range for this test is 70

Step-by-step explanation:

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