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3 years ago

Simplify fully A) √9/25 B) √12/√3 C) √15/√3

Mathematics

2 answers:

yaroslaw [1]3 years ago

8 0

Step-by-step explanation:

A) 45

B) 6

C) 6.7082039326

Ahat [919]3 years ago

4 0

Answer:

A. .12

B. 2.1

C. 2.3

Step-by-step explanation:

Ok so $\sqrt{9} / 25$ first we have to find the square root of 9 which is 3 then divide 3 by 25 which is .12.

Next one. $\sqrt{12} / \sqrt{3}$ So the square root of 12 is about 3.5 And the square root of 3 is about 1.7. So 3.5 divided by 1.7 is about 2.1.

Last one. $\sqrt{15} / \sqrt{3}$ so the square root of 15 is about 3.9 and the square root of 3 is about 1.7. So 3.9 divided by 1.7 is about 2.3.

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This parabola has<br> x-intercepts

slega [8]

Answer:

see the explanation

Step-by-step explanation:

we have the quadratic equation

$y=-16x^{2} +32x-10$

This is a vertical parabola open downward

The vertex is a maximum

Find the x-intercepts of the quadratic equation

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$-16x^{2} +32x-10=0$

Solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16x^{2} +32x-10=0$

$a=-16\\b=32\\c=-10$

substitute in the formula

$x=\frac{-32(+/-)\sqrt{32^{2}-4(-16)(-10)}} {2(-16)}$

$x=\frac{-32(+/-)\sqrt{384}} {-32}$

$x=\frac{-32(+/-)8\sqrt{6}}{-32}$

$x=\frac{-32(+)8\sqrt{6}}{-32}=\frac{32(-)8\sqrt{6}}{32}=0.39\ sec$

$x=\frac{-32(-)8\sqrt{6}}{-32}=\frac{32(+)8\sqrt{6}}{32}=1.61\ sec$

therefore

This parabola has two x-intercepts representing the times when the dolphin's height above water is zero feet

8 0

3 years ago

Read 2 more answers

A square pyramid has a base length of 6 inches. The height of each triangular face is 11 inches. Which expressions correctly cal

VMariaS [17]

Answer:

168 in²

Step-by-step explanation:

The square would be 36 in²

Area of a triangle is A= 1/2 bh

A = 1/2 (11 x 6), A= 1/2 (66)

1/2 (66) = 33 in², which is the area of a triangle.

Then you multiply 33 x 4 to get the area of all the triangles, which is 132 in²

You add the area of the square to the area of the triangles, which is 168 in².

7 0

3 years ago

Anybody know number 11??

PIT_PIT [208]

The property shown in #11 is the Associative Property of Addition.

In short, the associative property of addition states that no matter how an additive expression is grouped, the quantity will turn out the same. In this case, the answer is going to be equal whether you decide to add 5 and 8 first or 8 and 11 first.

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3 years ago

Three times the result of subtracting three from eight

MrMuchimi

The answer is 15 i believe

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4 years ago

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igor_vitrenko [27]

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3 years ago

Simplify fully A) √9/25 B) √12/√3 C) √15/√3​

Simplify fully A) √9/25 B) √12/√3 C) √15/√3