Plzz help i would really appreciate it!
T-T

Answer:

C = 28.26  cm

Step-by-step explanation:

The figure shows a circle of diameter 9 inches.

The person has taken radius r as 9 inches which is wrong.

The radius must be (9/2) = 4.5 inches, such that,

Circumference = 2πr

= 2×3.14×4.5

= 28.26  cm

Hence, this is the required solution.

Answer:

6.4

Step-by-step explanation:

multiply

Answer:

6.43

Step-by-step explanation:

You are given:

1 mile = 1.6 kilometers

but you want 4 miles so you multiply both of them by 4 so...

1*4 = 1.6*4

That gives you ------> 4 miles = 6.4 kilometers

Answer: look at the picture

Step-by-step explanation: Hope this help :)

Answer:

at answer C, that's supposed to be x= -4 , 1 and that's the answer.

x^2 + 3x - 4 = 0

Quadratic formula:  

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

Let a = 1

Let b = 3

Let c = -4

Just plug into the quadratic formula and do the math.

We are looking for x.

x = -3 +- sqrt{3^2 - 4(1)(-4)}/2(1)

x = -3 +- sqrt{9 + 16}/2

x = -3 +- sqrt{25}/2

x = (-3 +- 5)/2

Separate x into two parts.

Part 1

x = (-3 -5)/2

x = (-8)/2

x = -4

Part 2

x = (-3 + 5)/2

x = 2/2

x = 1

Answer: x = -4,  x = 1

Answer:

I don't know what the options are, but to solve t/8 = 2, you have to multiply by 8.

Hope this helps :)

Answer:

1759.52cm^3

Step-by-step explanation:

Given data

Cylinder E

h = 30 cm and

r = 4 cm

The expression for the volume is

V= πr^2h

V= 3.142*4^2*30

V= 3.142*16*30

V=1508.16 cm^3

Cylinder F

h=5 cm

r = 4 cm

The expression for the volume is

V= πr^2h

V= 3.142*4^2*5

V= 3.142*16*5

V=251.36 cm^3

Hence the total volume is

=251.36+1508.16

= 1759.52cm^3

Answer:

15

Step-by-step explanation:

its that because 808 makes the 14 into 15

Answer:

15.000

Step-by-step explanation:

because 808  is higher than 5 so it makes the 14 into 15

Answer:

15x²6y² .................

The product of the expression is [tex](3 x 5) x^5y^2[/tex]

We have,

(3x³y) (5x²y)

Now,

Finding the product of the expression.

We add up the exponents of the same base.

[tex]x^3x^2 = x^{3 + 2} = x^5\\yy = y^{1 + 1} = y^2[/tex]

And,

(3x³y) (5x²y)

[tex]= (3 x 5) x^5y^2[/tex]

Thus,

The product of the expression is [tex](3 x 5) x^5y^2[/tex]

Learn more about expressions here:

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Answer:

[tex]154 \: {cm}^{2} [/tex]

Step-by-step explanation:

Let the radius be = r cm

circumference = 2πr

[tex]44 = 2 \times \frac{22}{7 } \times r[/tex]

[tex]r = \frac{44 \times 7}{44} \times 7[/tex]

[tex]r = 7 \: cm[/tex]

Area of circle =

[tex]\pi {r}^{2} [/tex]

[tex] = \frac{22}{7} \times 7 \times 7[/tex]

[tex] = {154 \: cm}^{2} [/tex]

Hope it is helpful....

Answer:

When the lines are parallel, there are no solutions, and sometimes the two equations will graph as the same line, in which case we have an infinite number of solutions.

Step-by-step explanation:

Answer:

so you takeway 40 by 28 you get 12+12=24%

Answer:

i got

50 %

30%

greater

Step-by-step explanation:

Answer:

i thnik its 11

Step-by-step explanation:

Answer:

8.01 Is the answer your welcome

answer is 5.58

wait I explain it in some time

Answer:

See explanation

Step-by-step explanation:

cos(θ)= 18/30 = 3/5

sin(θ)= 24/30 = 4/5

tan(θ)= 24/18 = 4/3

cos(ϕ)= 24/30 = 4/5

sin(ϕ)= 18/30 = 3/5

tan(ϕ)= 18/24 = 3/4

The value of the trigonometric ratios have been determined.

In a Right angled triangle , the trigonometric ratios are used to determine the value of angles and sides.

The side length of the triangle as given in the figure is 18 , 24 , 30

The value of the trigonometric ratios are

cos θ = Base / Hypotenuse

sin θ =  Perpendicular / hypotenuse

tan θ =  Perpendicular / Base

cos(θ)= 18/30 = 3/5

sin(θ)= 24/30 = 4/5

tan(θ)= 24/18 = 4/3

cos(ϕ)= 24/30 = 4/5

sin(ϕ)= 18/30 = 3/5

tan(ϕ)= 18/24 = 3/4

Therefore the value of the trigonometric ratios have been determined.

To know more about Trigonometric Ratios

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Answer:

9-49

a=  2r+ 7

b= 2.5x + 16

c= 3r-2x-8.8

Step-by-step explanation:

Answer:

624inches squared.

Step-by-step explanation:

13×8×6=624

Answer:

30 hrs

Step-by-step explanation:

In 1 hour, J completes 1/55 of job

In that time, D completes 1/66 of job

J + D together complete 1/55 + 1/66 of the job in 1 hour

1/55 + 1/66 = 1/30

Together, it takes them 30 hours to build the wall.

Answer:

6

Step-by-step explanation:

Answer:

pentagon

Step-by-step explanation:

Answer:

SAS and not similar

Step-by-step explanation:

For the first one, the two triangles are similar (SAS) because the ratio of the two sides is the same (3:5) and the angle in between them is the same.

For the second one, the two triangles are not similar because if we look at the lengths of the sides which is the only information we have of them, we can see that their ratios are not the same.

Answer:

7.31 and 0.685

Step-by-step explanation:

x^2 -8x +5 = 0

use the quadratic formula

- (-8) + √(-8^2 -4(1)(5) / 2(1(

(8 + √(64 -20))/2

(8+√44)/2

8+6.63 / 2

14.63/2= 7.31

+7.31

(8- √44)/2 = 0.685

Answer:

Your on the wrong brainly, Your on brainly.com you need to go on brainly.in.........that one will help you out more

Step-by-step explanation:

Answer:

[tex]\cos x=\dfrac{8}{f}[/tex]

Step-by-step explanation:

Given that,

[tex]\tan x=\dfrac{e}{8}\\\\\sin x=\dfrac{e}{f}[/tex]

We need to find the value of cos x.

We know that,

[tex]\tan\theta=\dfrac{\sin\theta}{\cos\theta}[/tex]

Using the above relation,

[tex]\dfrac{e}{8}=\dfrac{\dfrac{e}{f}}{\cos x}\\\\\cos x=\dfrac{\dfrac{e}{f}}{\dfrac{e}{8}}\\\\=\dfrac{e}{f}\times \dfrac{8}{e}\\\\=\dfrac{8}{f}[/tex]

So, the value of cos x is equal to [tex]\dfrac{8}{f}[/tex].

Answer:

The answer is D

Step-by-step explanation:

Filled in circle means equal to or greater/lesser than. Arrow points the same way as the inequality symbol.

Answer:

D. q ≥ -15

Step-by-step explanation:

since it's closed circle it's or equal to, if it's opened then it's not or and equal to, in this case it's closed.

It goes from -15 up so, it's bigger than or equal to -15.

q ≥ -15

Answer:

Step-by-step explanation:

Answer:

r = 3.95 ft

Step-by-step explanation:

Volume of cone = [tex]\frac{1}{3} \pi r^{2} h[/tex] = 246 ft³

246 = [tex]\frac{1}{3} * \frac{22}{7} * r^2 * 15[/tex]

r² = [tex]\frac{246*3*7}{22*15*5}[/tex]

r = [tex]\sqrt{15.65}[/tex]

r = 3.95 ft