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Novosadov [1.4K]
3 years ago
9

Solve for a side in right triangles

Mathematics
1 answer:
elena55 [62]3 years ago
5 0

Answer:

4.50 = ?

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opposite / hypotenuse

sin 40 = ? / 7

Multiply each side by 7

7 sin 40 = ?

4.499513268 = ?

To the nearest hundredth

4.50 = ?

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Which is the graph of a quadratic equation that has a negative discriminant?
vovikov84 [41]

Answer:

Here's what I get  

Step-by-step explanation:

The formula for a quadratic equation is

ax² + bx + c = 0

The quadratic formula gives the roots:

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

D is the discriminant.

It tells us the number of roots to the equation — the number of times the graph crosses the x-axis.

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It doesn't matter if the graph opens upwards or downwards.

If D > 0, the graph crosses the x-axis at two points.

If D = 0, the graph touches the x-axis at one point.

If D < 0, the graph never reaches the x-axis.

Your graph must look like one of the two graphs on the right in the Figure below.

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3 years ago
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3 years ago
The first number in a pattern is 16. The pattern follows the rule divide by 2 and then add 13. What is the 4th term in the patte
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Answer:

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Read 2 more answers
Rewrite the equation in Ax+By=C form
Ksju [112]

Ax + By = C form of the given equation is –6x + y = –28.

Solution:

Given equation is y – 2 = 6(x – 5).

To write the equation in Ax + By = C format:

y – 2 = 6(x – 5)

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Add 2 on both sides of the equation.

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Subtract 6x from both sides of the equation.

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Arrange the terms in the equation.

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This is in the form of Ax + By = C.

Here A = –6, B = 1 and C = –28.

3 0
3 years ago
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