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Semmy [17]
2 years ago
9

Question 10 of 25

Mathematics
1 answer:
EastWind [94]2 years ago
4 0

Answer: A. 0.04

Step-by-step explanation: Answer 0.04

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How many roots does the equation 3x² = 1 - 7x have and what is the nature of the roots
AnnyKZ [126]

Answer:

Step-by-step explanation:

Rewrite this quadratic in standard form:  3x^2 + 7x - 1.

The coefficients of x are {3, 7, -1}, and so the discriminant is b^2 - 4ac, or

7^2 - 4(3)(-1), or 49 + 12, or 61.  Because the discriminant is positive, this quadratic has two real, unequal roots

7 0
3 years ago
PLEASE HELP ASAP THE DETAILS ARE BELOW.What is the value of x?
Aloiza [94]

Answer:

x = 30°.

Step-by-step explanation:

The dashes on the three lines indicate that the three lines are of equal lengths. The smaller triangle made out of the three lines (the one with two vertices on the circumference of the circle and one at the center of the circle) is an isosceles triangle. All three of the triangle's interior angles are 60° since it is isosceles.

The line (the one with arrows on its ends) touches the circle at only one point. That line is a tangent to the circle. That line is perpendicular to the segment that connects the center of the circle to the point of tangency. The angle between the two will be 90°.

The largest triangle includes three angles:

  • The angle with the center of the circle as its vertice: 60°;
  • The right angle due to the tangent to the circle: 90°;
  • The angle x°.

What is the value of x?

The three interior angles of a triangle add up to 180°. As a result,

60° + 90° + x° = 180°

x = 180 - 90 - 60 = 30.

6 0
3 years ago
A cactus casts a shadow 33 feet long. At the same time of day,Liam,who is 6 feet tall,casts a shadow 9 feet long,as shown. What
Art [367]

Answer:

If x = 2, y = 6, and z = 4, which expression is equivalent to 4? à 54+0-3+2=4. D Xtra 4 ... A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby.

4 0
3 years ago
What is the slope of this graphed line?
seropon [69]

Answer:

negative

Step-by-step explanation:

A line sloping upwards from left to right has a positive slope

A line sloping downwards from left to right has a negative slope

The line here is sloping downwards from left to right.

Thus has a negative slope

4 0
3 years ago
Read 2 more answers
Ter
BigorU [14]

Answer:

18 Pounds

Step-by-step explanation:

Variable: s=how much you sister weighs

One equation would be:

94 - s = 112

You then have to isolate the variable by subtracting 94 from each side to get:

s=18

I don't if I explained it that well.

5 0
2 years ago
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