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MariettaO [177]
3 years ago
12

Which equation can be solved by using this expression?

Mathematics
1 answer:
Marat540 [252]3 years ago
3 0

<u>Answer:</u>

The correct answer option is B. 2 = 3x + 10x^2

<u>Step-by-step explanation:</u>

We are to determine whether which of the given equations in the answer options can be solved using the following expression:

x=\frac{-3 \pm\sqrt{(3)^2+4(10)(2)} }{2(10)}

Here, a = 10, b = 3 and c=-2.

These requirements are fulfilled by the equation 4 which is:

12=3x+10x^2

Rearranging it to get:

10x^2+3x-2=0

Substituting these values of a,b,c in the quadratic formula:

x= \frac{-b \pm \sqrt{b^2-4ac} }{2a}

x= \frac{-3 \pm\sqrt{(3)^2-4(10)(-2)} }{y}

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6.
klemol [59]

Answer:

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Step-by-step explanation:

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The map shows the location of the houses of Dan, Joe, Lee, and Roy:
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Answer:

<em>Roy has a house in the same quadrant as the Community Center</em>

Step-by-step explanation:

<u>Rectangular Coordinates</u>

The coordinate grid shown in the image below contains the locations of the houses of Dan, Joe, Lee, and Roy.

It has also been marked the four quadrants I, II, III, and IV.

Note that Dan is in quadrant I, Joe is in quadrant II, Lee is in quadrant III, and Roy is in quadrant IV.

The Community Center (CC) is also in quadrant IV, thus the answer is:

Roy has a house in the same quadrant as the Community Center

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- Algebraically find the x-coordinates where the line y = 2x – 3 intersects the circle (x – 3)' +(y+1)* = 68.
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In A ABC, m ZA = 36°, m ZB = 45°, and m ZC = 99º. Which statement
castortr0y [4]

Answer:

The true statement is AB > CA > BC ⇒ D

Step-by-step explanation:

In any triangle, the longest side in length is the opposite to the greatest angle in the measure, and the shortest side in length is opposite to the smallest angle in the measure.

Let us solve the question

∵ ABC is a triangle

∵ m∠A = 36°

∵ m∠B = 45°

∵ m∠C = 99°

→ That means C is the greatest angle and A is the smallest angle

∴ ∠C is the greatest angle and ∠A is the smallest angle

∴ The arrange of the measures of the angles is m∠C > m∠B > m∠A

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∵ CA is the opposite side of ∠B

∴ The arrange of the lengths of the sides is AB > CA > BC

∴ The true statement is AB > CA > BC

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