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LenaWriter [7]
3 years ago
11

Help please I don't understand this question

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0
Gbh ecd hgb gbh hope this helps
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I WILL GIVE 30 POINTS TO THOSE WHO FILL IN THE BLANK CORRECTLY
matrenka [14]

Answer:

x=7

Step-by-step explanation:

by pythagoras, 25^2=24^2+x^2

solve for x

6 0
2 years ago
The first three steps in determining the solution set of the system of equations algebraically are shown in the table. y = −x2 +
lianna [129]
You have a system of equations \left \{ {{y = -x^2+2x-9} \atop {y =-6x+6}} \right..

1. Substitude right side of second equation into the left side of the first equation: -6x+6=-x^2+2x-9.

2. Solve this equation:
 x^2-2x+9-6x+6=0, \\ x^2-8x+15=0, \\ D=(-8)^2-4\cdot 1\cdot 15=64-60=4,  \\ \sqrt{D}=2,  \\ x_{1,2}=\dfrac{8\pm 2}{2  } =3,5.

3. Find y:
for x_1=3, y_1=-6\cdot 3+6=-18+6=-12,
for x_2=5, y_2=-6\cdot 5+6=-30+6=-24.

4. The solutions of the system are: (3,-12) and (5,-24).
Answer: Correct choice is A.


7 0
3 years ago
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A 70" TV is advertised on sale at a local store. What are the length and width of the television?
a_sh-v [17]
The length and width of the television could be any two numbers whose product is 70.
7 0
3 years ago
Calculate the surface area of a cylinder at waste bucket without a lid that measures 28 cm height and 18 cm in diameter give you
Debora [2.8K]

28500.53 Square Inches into Square Centimeters:

183,874.019348

7 0
3 years ago
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What is the factorization of the trinomial below?
mart [117]

x^3-12x^2+35x

=x (x^2 - 12x + 35)

=x(x -7)(x -5)

Answer

C. x(x - 7)(x - 5)

5 0
3 years ago
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