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dusya [7]
3 years ago
5

22. Which equation has solutions of -2 and 3?

Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

  B. y=x²-x-6

Step-by-step explanation:

Consider the product ...

  0 = (x -a)(x -b) = x² -(a+b)x +ab

This equation has solutions x=a and x=b. You will note that ...

  • the constant is the product of the solutions (ab)
  • the coefficient of x is the opposite of their sum (-(a+b))

For solutions of -2 and 3, the constant will be (-2)(3) = -6. This eliminates choices C and D.

The sum of the solutions is -2+3 = 1, so the coefficient of x is -1, matching choice B.

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Amelia rented a DVD and it was due to be returned on 26 November. She actually returned it to the shop on 12 December. The renta
Radda [10]

Answer:

Total fine paid by Amelia =  £1.44

Step-by-step explanation:

Given that:

Number of days = 27 November to 12 December

Number of days = 16 days

Per day fine = 9p

Total fine = Per day fine * Number of days

Total fine = 9 * 16

Total fine = 144p

1£ = 100p

144p = \frac{144}{100}

144p = £1.44

Hence,

Total fine paid by Amelia =  £1.44

7 0
4 years ago
Amy picked 8 bushels of peaches. A bushel of peaches weighs 35 pounds. How many ounces of peaches did she pick in each bushel? H
dedylja [7]

Answer:

Each bushel of peaches contains 560 ounces

she got 4480 ounces of peaches in all

Step-by-step explanation:

1 pound = 16 ounces

35 pounds = 560 ounces

8 (amount of bushels bought) x 560 (amount of ounces in each bushel)= 4480 ounces in total

Hope this helps <3

8 0
4 years ago
FIND the value of x. DO NOT POST ANY FILES
spayn [35]

Answer:

Step-by-step explanation:

The tangent segment is perpendicular to the diameter, so the triangle is a right triangle (not just based on its appearance).  A property of circles is:  a tangent is perpendicular to the radius drawn to the point of tangency.

In the right triangle, one leg has length 12.6, and the hypotenuse has length 21.

Apply the Pythagorean Theorem:  (leg)^2 + (leg)^2 = (hypotenuse)^2

Oh, and the diameter has length 2x!

(2x)^2+12.6^2=21^2\\\\4x^2+158.76=441\\\\4x^2=282.24\\\\x^2=70.56\\\\x=\sqrt{70.56}\\\\x=8.4

7 0
3 years ago
How would i reduce 10/100 with the work problem to go with it
AlekseyPX

Answer:

1/10

Step-by-step explanation:

you can simply show the cancellation of the zeros

4 0
4 years ago
Read 2 more answers
Please answer ( 8th grade math )
maxonik [38]
The answer is C you just add both angles together and subtract the sum by 180 because that’s what triangles equal to. Leaving you with the answer of 78°! hope this helped :)
5 0
3 years ago
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