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gizmo_the_mogwai [7]
3 years ago
12

Solve: Factor the following polynomial completely -9x^2-30x-25

Mathematics
2 answers:
AnnZ [28]3 years ago
5 0

Answer:-(3x+5)^2

Step-by-step explanation:

Korolek [52]3 years ago
3 0

Answer:

(−3x−5)(3x+5)

Step-by-step explanation:

−9x2−30x−25

−9x2−30x−25

=(−3x−5)(3x+5)

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What is the value of P(X=2 or X=0)=?
dlinn [17]

Answer:

  0.4

Step-by-step explanation:

The conditions are mutually exclusive (X cannot be both 0 and 2), so the probability is the sum of the individual probabilities:

  P(x = 2 or 0) = P(x=2) +P(x=0)

  P(x = 2 or 0) = 0.1 +0.3

  P(x = 2 or 0) = 0.4

5 0
3 years ago
(a) The area of a rectangular parking lot is 5551 m
laila [671]

Answer:

a)91 m

b) 58 m

Step-by-step explanation:

a) length × width = area →

length × 61 = 5551

length = 5551/61 = 91

b) perimeter = 2×( length + width)

292 = 2×( 88 + width) = 176 + 2×width

292 - 176 = 2× width

116 = 2× width → width = 116/2 = 58 m

8 0
3 years ago
Read 2 more answers
If P = {−1, 1, 3} and Q = {−5, −3, 0, 6, 9}, find P ∩ Q.
Dennis_Churaev [7]

Answer:

2.5.1 Write the vector, parametric, and symmetric equations of a line through a given point in a given direction, and a line through two given points.

2.5.2 Find the distance from a point to a given line.

2.5.3 Write the vector and scalar equations of a plane through a given point with a given normal.

2.5.4 Find the distance from a point to a given plane.

2.5.5 Find the angle between two planes.

Step-by-step explanation:

3 0
3 years ago
Least common denominator of 7/9 and 2/3
Margaret [11]

Answer: 9

Step-by-step explanation: The common denominator will be the least common multiple for the two denominators.

To find the least common multiple or <em>lcm</em> of 3 and 9, begin by listing the first few multiples for each number.

<u />

<u>Multiples of 6</u>

1 × 9 = 9

2 × 9 = 18

3 × 9 = 27

Notice that we skipped 0 × 9 in our list of multiples. That's because 0 × 6 is 0 according to the zero property of multiplication and our least common multiple can't be 0.

When listing the multiples of 3, it's a good idea to keep an eye on the list of multiples for 9 so that we will notice when we find a least common multiple.

<u>Multiples of 3</u>

1 × 3 = 3

2 × 3 = 6

3 × 3 = 9

Notice that in both lists, we have the least common multiple which is 9.

Therefore, the least common denominator of 9 and 3 is 9.

7 0
3 years ago
Read 2 more answers
Holli’s cheerleading uniform cost $89.23. There are 16 cheerleaders on the squad. How much will it cost for all of the uniforms?
Juli2301 [7.4K]

Answer:

$1,427.68

Step-by-step explanation:

hope this helps

8 0
3 years ago
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