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3 years ago

Gabriella swims 2 laps per minute. What is the rate unit?

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Answer:

1/2

Step-by-step explanation:

THIS IS THE CORRECT ANSWER DONT DELETE

RUDIKE [14]3 years ago

5 0

Answer:

Step-by-step explanation:

I got it right

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Factor this polynomial completely x2 + 3x – 18 A. (x-2)(x + 9) B. (x+3)(x-6) оо C. (x - 3)(x+6) D. (x - 3)(x-6)

Umnica [9.8K]

Answer:

C. $(x-3)(x+6)$

Step-by-step explanation:

I think the equation meant $x^2+3x-18$ ?

Anyways, to factor these kinds of quadratic, keep into consideration:

$ax^2+bx+c=(x+w)(x+v)$

ONLY if:

$w+v=b\\wv=c$

Start off by finding factors of c, which in this case, -18:

±(1, 2, 3, 6, 9, 18)

If one of the numbers is negative then the other number must be positive.

Find which two factors will sum up to b, which in this case, is 3.

$1+(-18)\neq 3\\2+(-9)\neq 3\\3+(-6)\neq 3\\6+(-3)=3\\9+(-2)\neq 3\\18+(-1)\neq 3\\$

The only two factors that work are 6 and -3.

Replace them into the factored form:

$(x+w)(x+v)\\(x+6)(x-3)\\(x-3)(x+6)$

3 0

2 years ago

Read 2 more answers

Math question 30 points if you answer

mote1985 [20]

Answer:

Step-by-step explanation:

h(t) = - 16t² + 22t + 6

h = 13.5625 ft

8 0

3 years ago

PLEASE HELP I AM BAD A MATH

pav-90 [236]

Answer:

Well what can i help you with?

Step-by-step explanation:

7 0

3 years ago

Which of the following expressions represents the distance between -3.9, and -4.7?

Solnce55 [7]

Answer:

$d = \sqrt{(x2 - x1) {}^{2} + (y2 - y1) {}^{2} }$

Step-by-step explanation:

$d = \sqrt{( - 4 + 3) {}^{2} + (7 - 9) {}^{2} }$

$d = \sqrt{(1 + 4)} = \sqrt{5}$

7 0

3 years ago

X + 6y = 2 4x - 3y = 10 Pick the first step to solving this system of equations using the addition method.

meriva

<span>x + 6y = 2
4x - 3y = 10

The first thing to do when solving a system of equations using the addition/elimination method is to multiply one or both of the equation by a value that will cancel out one of the variable terms.

Based on this, the correct answer is D - multiply the bottom equation by 2 thus eliminating the y variable when the equations are added together:

</span>x + 6y = 2 x + 6y = 2
2(4x - 3y = 10) --> 8x - 6y = 20<span>

Hope this helps.</span>

6 0

3 years ago