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monitta
3 years ago
5

Help me agaiaiiaiaiaiiaiain im too lazy to answer them

Mathematics
2 answers:
astraxan [27]3 years ago
7 0
C) 343 see answer below

Mila [183]3 years ago
3 0

Answer: (C

Step-by-step explanation: To evaluate this, solve by raising 7 to the power of 3.

7 x 7 x 7

7 x 7 = 49 x 7 = 343

Therefore, the answer is C.

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Which statement about the following equation is true?<br>2x2-9x+2-1​
Furkat [3]

Complete Question:

Which statement about the following equation is true?

2x^2-9x+2 = -1

A) The discriminant is less than 0, so there are two real roots

B) The discriminant is less than 0, so there are two complex roots

C) The discriminant is greater than 0, so there are two real roots

D) The discriminant is greater than 0, so there are two complex roots

Answer:

C) The discriminant is greater than 0, so there are two real roots

Step-by-step explanation:

The given equation is 2x^2-9x+2 = -1 which by simplification becomes

2x^2 - 9x + 3 = 0

For a quadratic equation of the form ax^2 + bx + c = 0, the discriminant is given by the equation, D = b^2 - 4ac

If the discriminant D is greater than 0, the roots are real and different

If the discriminant D is equal to 0, the roots are real and equal

If the discriminant D is less than 0, the roots are imaginary

For the quadratic equation under consideration, a = 2, b = -9, c = 3

Let us calculate the discriminant D

D = (-9)² - 4(2)(3)

D = 81 - 24

D = 57

Since the Discriminant D is greater than 0, the roots are real and different.

3 0
3 years ago
What are the distances from the point (x,y) to the focus of the parabola and the directrix, select two answers
yulyashka [42]

Answer:

3,5

Step-by-step explanation:

axis

6 0
3 years ago
In the Diagram, PA and PB are tangent to circle O at A and B, respectively. Diameter BOD and chord AC intersect at E, mCB=160, a
Dahasolnce [82]
I don’t know sorry good luck tho
6 0
3 years ago
The length of Rectangle A is 20 inches and the width is 4 inches. The length of Rectangle B is
astraxan [27]

Answer:

8 inches

Step-by-step explanation:

Let w be the width of rectangle B.

Since, both rectangles are similar.

Therefore, corresponding lengths and widths of rectangles A and B will be in proportion.

\therefore \frac{20}{40}  =  \frac{4}{w}  \\  \\  \frac{1}{2}  =  \frac{4}{w}  \\  \\ w = 2 \times 4 \\  \\ w = 8 \: inches

5 0
3 years ago
Read 2 more answers
I will give brainlist
Anestetic [448]

Answer:

C.

Hope this helped!!!

4 0
3 years ago
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