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2 years ago

Someone help pls -……

Mathematics

1 answer:

uysha [10]2 years ago

8 0

Answer:

d) 35ft

e) 6 seconds

f) 250°

Step-by-step explanation:

If it makes one rotation (360°) in 36 seconds, then it turns 10° every second.

36 secs = 360°

⇒ 1 sec = 360/36 = 10°

d) After 9 seconds, it has turned:

9 x 10 = 90°

Therefore, it will be 15 + 20 = 35ft from the wall

e) 60° = 6 seconds

f) 25 seconds = 25 x 10 = 250°

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Identify the number as real, complex, pure imaginary. radical -9

Lemur [1.5K]

Answer:

Pure imaginary

Step-by-step explanation:

$\sqrt{ - 9} = \sqrt{ - 1 \times 9} = 3i \\ is \: a \: pure\: imaginary \: number.$

8 0

4 years ago

State the system of linear inequalities which satisfies the following shaded regions. help ??asappp

7nadin3 [17]

Find the equation of the line that does not have an equation written for it.

(4, -4) (0,-2)

m = (-2 + 4) / (0 - 4)

m = 2 / -4 = -1/2

y = -1/2x - 2

Let's now look at all of these different lines we have. For the two intersecting lines, we know that the bottom one must be greater than and the top must be less than. And because these are solid lines, they are greater/less than or equal to. For the dotted line, we know that x must be less than because the line is dotted and the shading is to the left.

y ≤ x - 2

x < 4

y ≥ -1/2x - 2

Hope this helps! :)

6 0

3 years ago

10 points And thank you for whoever answers

Yuri [45]

Answer:

B) skirt 1, white

skirt 1, black

skirt 2, white

skirt 2, black

Step-by-step explanation:

You can wear skirt type 1 in white or black, or skirt type 2 in white or black

B) skirt 1, white

skirt 1, black

skirt 2, white

skirt 2, black

6 0

3 years ago

A decibel is a logarithmic unit that can be used to measure the intensity of a sound. The function y = 10logx gives the intensit

Anna007 [38]

Answer:

The sound intensity of a whisper is 333.3 times the reference intensity

Step-by-step explanation:

Given : The function $y = 10logx$ gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity.

A whisper has a sound intensity of 30 decibels.

To find : Use your graph to help you complete the following statement. The sound intensity of a whisper is times the reference intensity.

Solution :

Graph is attached which shows their intersection at (1000,30).

We can also verify by substituting value.

We have given that a whisper has a sound intensity of 30 decibels.

Therefore, y=30 , Let log base 10

$y = 10logx$

$30 = 10logx$

$\frac{30}{10} =logx$

$3=logx$

Logarithmic property $log_{x}b=a \Rightarrow b=x^a$

$x=10^3$

$x=1000$

The ratio of the intensity of the sound to a reference intensity is 1000 decibels

The sound intensity of a whisper is times the reference intensity is

$\frac{1000}{3}=333.33$

The sound intensity of a whisper is 333.3 times the reference intensity.

7 0

3 years ago

Read 2 more answers

The total surface area of the triangular prism is blank squar millimeter.

Shtirlitz [24]

Answer:

To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram

Step-by-step explanation:

hope this helps :)

7 0

3 years ago