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3 years ago

When h has the value 5 calculate 6h+9

Mathematics

2 answers:

jonny [76]3 years ago

6 0

The answer is 39 because 6 times 5 is 30. 30 plus 9 is 39. :)

tankabanditka [31]3 years ago

4 0

39. If H equals 5 you would multiply 6 by 5 and add it by 9 which equals 39.

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Ifa rectangle measures 20 meters by 48 meters, what is

sasho [114]

Answer:

$52m$

Step-by-step explanation:

We can use the Pythagorean theorem to find the length of the diagonal since drawing a diagonal across a rectangle results in two right angle triangles.

Length of diagonal $= \sqrt{20^2+48^2}$ (The length of the diagonal can be thought of as the hypotenuse of one of the right angle triangles)

$=\sqrt{2704}$

$=52 m$

∴ The length of the diagonal is $52 m$

Hope this helps :)

4 0

2 years ago

Help? high school pre cal

o-na [289]

Answer:

B. 2, -0.5

Step-by-step explanation:

Given the equation

$-2x^2+2=-3x$

Rewrite it as

$-2x^2+3x+2=0$

Graph the graph of the quadratic function $y=-2x^2+3x+2$

The grapg of this function is a parabola going downwards.

This parabola intersects the x-axis at points x = -0.5 and x = 2, so the solutions of the equation are x = -0.5 and x = 2

3 0

3 years ago

Solve for x in sin xtan x + tan x – 2sin x + cos x = 0 for 0 ≤ x ≤2π rads.

konstantin123 [22]

The value of x = 4.71, 0.41, or 5.89 radian value

Specification:

sinxtanx + tanx -2sinx + cosx = 0

tanx = sinx / cosx

sinx (sinx / cosx) + sinx / cosx -2sinx + cosx = Multiply 0

cosx to remove the fraction

sin ^ 2 (x) + sinx -2sinxcosx + cos ^ 2 (x) = 0

sin ^ 2 (x) + cos ^ Replace with 1. 2 (x) = 1

sinx -2sinxcosx + 1 = 0

sinx (1-2cosx) = -1

1-2cosx = -1 / sinx

-2cosx = -1 / sinx -1

2cosx = 1 / sinx + 1

cosx = 1 / 2sinx + 1/2

sqr (1-sin ^ 2 (x)) = 1 / 2sinx + 1/2

Squared on both sides

1-sin ^ 2 (x) = 1 / 4sin ^ 2 (x) + 1 / 2sinx + 1/4

4sin ^ 2 (x) Multiply

4sin ^ 2 (x) -4sin ^ 4 (x) = 1 + 2sinx + sin ^ 2 (X)

4sin ^ 4 (x) -3sin ^ 2 (x) + 2sinx +1 = 0

y = sinx

4y ^ 4 -3y ^ 2 + 2y + 1 = 0

sinx = y = -1 or -0.3478

x = 270, 180-22.61 or -22.61 degrees

x = 270, 157.39 or 337 .39 degrees

x = 3pi / 2, 0.13pi or 1.87pi radians

x = 4.71, 0.41 Or 5.89 radians

For more information about trigonometry, visit brainly.com/question/24349828

#SPJ1

3 0

2 years ago

5 pound each pound has 1/4 how many

postnew [5]

Answer:

5/4

Step-by-step explanation:

5 pounds, and if each of those has 1/4 of something then they would have 5/4 or 1.25 of that something

5 0

2 years ago

The equation above can be used to calculate the volume V, of a cone with a height h and radius r. If the volume of a cone is 243

WARRIOR [948]

Answer:

The height of the cone is $h=9\ ft$

Step-by-step explanation:

we know that

The volume of a cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

In this problem we have

$V=243\pi\ ft^{3}$

$r=h\ ft$

substitute

$243\pi=\frac{1}{3}\pi (h^{2})h$

simplify

$729=(h^{3})$

$h=\sqrt[3]{729}\ ft$

$h=9\ ft$

5 0

3 years ago