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EastWind [94]
3 years ago
14

a music store is advertising a 25% off sale on all new releases find the discount and the sale price of a newly released CD that

regularly sells for $12.50
Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0
Discount=$3.13
sale=$9.38
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PLEASE HELP! The diagonals of a trapezoid are equal.<br><br> always<br> sometimes<br> never
nikdorinn [45]

The diagonals of a trapezoid are equal sometimes,

and they're unequal sometimes.


The diagonals are equal only in an "Isosceles trapezoid" . . .

where the non-parallel sides have equal lengths.

4 0
3 years ago
Solve the quation.
jenyasd209 [6]

x + 7/8 = 4

subtract 7/8 from each side

x = 4 - 7/8

borrow from the 4

x =3 8/8 - 7/8

x = 3 1/8

Choice C

4 0
3 years ago
Which equation is y = 3(x – 2)2 – (x – 5)2 rewritten in vertex form?
Alenkinab [10]
Y= 3( x -2 )² - ( x-5 )² = 3 ( x² - 4 x + 4 ) - ( x² - 10 x + 25 ) =
= 3 x² - 12 x + 12 - x² + 10 x - 25=
= 2 x² - 2 x - 13 =
= 2 ( x² - x + 1/4 - 1/4 ) - 13 =
= 2 ( x - 1/2 )² - 1/2 - 26/2 =  2 ( x - 1/2 )² - 27/2
Answer: D) 
4 0
3 years ago
Select the correct answer. Simplify. 198 49√2 OB. 7√2 OC. 2√7 OD. 14√7​
Nitella [24]

Answer: The correct answer is B.

Step-by-step explanation: To simplify a square root, you take the factors of the value in the square root and see the greatest factor that is a square. In this case, 49 is the greatest square factor of 98. You take the square root of 49, which is 7. 7 goes outside the radicand. Leave 2 inside the radical because 49 x 2 = 98. Hence, the correct answer is B.

7 0
2 years ago
Can I have some help
Brums [2.3K]

\frac{100}{40}  =  \frac{z + 69}{z}  \\ 100z = 40z  + 2760 \\ 60z = 2760 \\ z = 46
6 0
3 years ago
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