3 years ago

What two numbers have a sum of 15

Mathematics

1 answer:

worty [1.4K]3 years ago

4 0

Answer4 and 11:

Step-by-step explanation:

4 +11= 15

11-4=7

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12x - 3x + 11 3 4x - (17 - 9x)

KengaRu [80]

sorry it won't let me show step by step but your answer is 150x-17

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3 years ago

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It says solve for x and round to the nearest hundredth. <br> 1. 9 over 6 equals x over 10

emmainna [20.7K]

Answer:

1.110

Step-by-step explanation:

I hope that help's

5 0

3 years ago

Complete the standard form of the equation of a hyperbola that has vertices at (-10, -15) and (70, -15) and one of its foci at (

Elena L [17]

Answer:

$\frac{(x-30)^{2}}{40^{2}} - \frac{(y+15)^{2}}{3^{2}} = 1$

Step-by-step explanation:

The equation of the horizontal hyperbola in standard form is:

$\frac{(x-k)^{2}}{a^{2}} - \frac{(y-k)^{2}}{b^{2}} = 1$

The position of its center is:

$C(x,y) = \left(\frac{-10 + 70}{2}, -15 \right)$

$C(x, y) = (30,-15)$

The values for c and a are respectively:

$a = 70 - 30$

$a = 40$

$c = 30 - (-11)$

$c = 41$

The remaining variable is computed from the following Pythagorean identity:

$c ^{2} = a^{2} + b^{2}$

$b = \sqrt{c^{2}-a^{2}}$

$b = \sqrt{41^{2}-40^{2}}$

$b = 3$

Now, the equation of the hyperbola is:

$\frac{(x-30)^{2}}{40^{2}} - \frac{(y+15)^{2}}{3^{2}} = 1$

3 0

3 years ago

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Identify the function type that best models the data.

SVETLANKA909090 [29]

The answer is 42,8,6 that it the right answer

8 0

4 years ago

Using the quadratic formula to solve 5x=6x squared -3, what are the values of x?

kiruha [24]

Answer: 5+sqrt(97)/12, 5-sqrt(97)/12 or we write it as [5+/-sqrt(97)]/(12)

5x=6x^2-3

6x^2-5x-3=0

x=-b+/-sqrt(b^2-4ac)/2a

x=-(-5)+/-sqrt((-5^2-4(6)(-3))/2(6)

x= 5+/-sqrt(97)/12

And decimal form is;

x=1.237, -0.4041

If anyone has any questions please feel free to ask and I’ll reply ASAP. Thanks

7 0

4 years ago