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VARVARA [1.3K]
2 years ago
13

Please answer. I will give brainliest.

Mathematics
1 answer:
Delvig [45]2 years ago
5 0

Answer:

1/2b - 5 (the third one)

Step-by-step explanation:

"Denni is five years less..."

this tells us we will need to be subtracting five, which knocks out the other answers.

"..one-half his brothers age."

since b represents the age of his brother, one half his brothers age is 1/2b  

That leaves us with 1/2b - 5

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Answer:

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3 years ago
What is the diameter of a human hair written in scientific notation?
PilotLPTM [1.2K]
I believe it is <span>2.5 x 10^-3 cm</span>
4 0
2 years ago
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Which of the following equations can be used to find the length of BC in the triangle below??? Help :)
vivado [14]

Answer:

D

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, hence

(BC)² = 10² + 30² → D

5 0
3 years ago
Which function has the given properties below? The domain is the set of all real numbers. One x-intercept is (2 pi, 0). The ampl
Tomtit [17]

The functions y = -4sin (x) and y = 4sin (x) has the given properties.Functions help to define the relationship between the independent and the dependent variable.

<h3>What is function?</h3>

A expressions defining a connection between the independent variable and dependent variable is known as the functions.

A feature that:

The domain is defined as the set of all real numbers.

a single x-intercept

The amplitude is four.

The y-intercept is defined as (0,0)

Because the specified function goes through the functions having "cosine," the functions containing "cosine" can be omitted from the selections (0,0). As a result, we have two options:

Hence  y = -4sin (x) and y = 4sin (x) has the given properties.

To learn more about the function refer to the link;

brainly.com/question/5245372

3 0
2 years ago
What is the answer <br> Ps I need the answers quick
Ghella [55]

Answer:

30%

Step-by-step explanation:

first it's on sale for half off

then u have a coupon for 20%

50%+20%=70%

100%-70%=30%

3 0
3 years ago
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