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quester [9]
3 years ago
9

How do u write a verbal expression for 4 - 5h

Mathematics
1 answer:
bija089 [108]3 years ago
8 0

The difference between 4 and 5 times a number.
4 reduced by 5 times a number.
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The set of all Real numbers between 4 and 7 including 4
erik [133]
4,5,6,7 is your answer
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3 years ago
A trigonometry student stands 25 meters from a building and measures the angle of elevation to the top of the building as 30â°.
kozerog [31]

Using the slope concept, it is found that the angle measurement has to be within 1.2º of 30º.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, considering the horizontal distance and the actual angle, the following equation is applied to find the actual height:

\tan{30^\circ} = \frac{h}{25}

h = 25\tan{30^\circ}

h = 14.43.

For an error of 5%, the bounds of h are as follows:

h_{min} = 0.95 \times 14.43 = 13.71

h_{max} = 1.05 \times 14.43 = 15.15

Hence, the angles will be given by:

\tan^{\alpha} = \frac{13.71}{25}

\alpha = \tan^{-1}{\left(\frac{13.71}{25}\right)}

\alpha = 28.8

\tan^{\alpha} = \frac{15.15}{25}

\alpha = \tan^{-1}{\left(\frac{15.15}{25}\right)}

\alpha = 31.2

Hence the angle measurement has to be within 1.2º of 30º.

More can be learned about the slope concept at brainly.com/question/18090623

5 0
2 years ago
3(12+b)=3•12+3•b
Olegator [25]
Distributive. The multiplication is distributed across the addition.
5 0
3 years ago
I'm bo.red here's a question, How to find area of a circle<br> just put the formula
Nuetrik [128]

Answer:

Step-by-step explanation:

A = \pix^{2}

7 0
2 years ago
Read 2 more answers
John randomly picks a number from 1 to 5 (both inclusive) and a letter from A to E (both inclusive). What is the probability tha
Greeley [361]

Answer:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

So then the best option would be:

a. 1/25

Step-by-step explanation:

For this case we assume that the sample space for the numbers is :

S_1= [A,B,C,D,E]

And the sample space for the numbers is:

S_2 =[1,2,3,4,5]

Both sampling spaces with a size of 5.

We define the following events:

A="We select a 2 from the numbers"

B= "We select a E from the letters"

We can find the individual probabilities for each event like this:

P(A)= \frac{1}{5}

P(B) = \frac{1}{5}

And assuming independence we can find the probability required like this:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

The last probability is the probability of obtain obtain a 2 AND an E

So then the best option would be:

a. 1/25

3 0
4 years ago
Read 2 more answers
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