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steposvetlana [31]
3 years ago
7

Interior and exterior of angles of triangles please help !!

Mathematics
1 answer:
densk [106]3 years ago
6 0

Answer:

x = 20

Step-by-step explanation:

Assuming you require the value of x

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

7x - 15 is an exterior angle of the triangle, thus

7x - 15 = x + 28 + 4x - 3 , that is

7x - 15 = 5x + 25 ( subtract 5x from both sides )

2x - 15 = 25 ( add 15 to both sides )

2x = 40 ( divide both sides by 2 )

x = 20

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Please help me, I’m brain dead right now:)
Harlamova29_29 [7]

Answer:

A 40%

Step-by-step explanation:

2/5 = 40/100 (or 40%)

So 40 blocks should be filled in :)

Hope this helps!

3 0
3 years ago
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The perimeter of a rectangle is 200 feet. Describe the possible lengths of a side if the area of the rectangle is not to exceed
zepelin [54]
The possible lengths are 333.3 
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3 years ago
25. a 2018 pew research center survey found that more americans believe they could give up their televisions than could give up
geniusboy [140]

(a)Probability that a person could give up cell phone = 0.48

(b)Probability that a person who could give up her cell phone also could give up television is 0.65

(c) Probability that a person who could not give up a cell phone could give up television is 0.73

What is Probability?

Calculating the likelihood of experiments happening is one of the branches of mathematics known as probability. We can determine everything from the likelihood of receiving heads or tails when tossing a coin to the likelihood of making a research blunder, for instance, using a probability. It is crucial to grasp this branch's most fundamental concepts in order to fully comprehend it, including the formula for computing probabilities in equiprobable sample spaces, the likelihood of two events joining together, the probability of the complementary event, etc.

According to  the given question:

a. Probability that a person could give up cell phone = 0.48

b. Probability that a person who could give up her cell phone also could give up television

= P(give up cell phone and TV)/p(give up cell phone)

= 0.31/0.48

= 0.6458

= 0.65

c. Probability that a person who could not give up a cell phone could give up television is

= P(could not give up cellphone and could give up TV)/P(could not give up cell phone)

= 0.38/0.52

= 0.73

d. The probability a person could give up television is higher for persons who couldn't give up cell phones than for those who could give up their cell phones.

Hence,

(a)Probability that a person could give up cell phone = 0.48

(b)Probability that a person who could give up her cell phone also could give up television is 0.65

(c) Probability that a person who could not give up a cell phone could give up television is 0.73

To learn more about Probability, visit:

brainly.com/question/13604758

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5 0
1 year ago
I need help plssss<br> -3(2x-11)_&gt;8x-9
Ilia_Sergeevich [38]

The Linear inequality holds true for 21 ≥ x;

What is Linear Inequality?

The mathematical expression with unequal sides is known as inequality in mathematics. Inequality is referred to in mathematics when a relationship results in a non-equal comparison between two expressions or two numbers. In this instance, any of the inequality symbols, such as greater than symbol (>), less than symbol (), greater than or equal to a symbol (), less than or equal to a symbol (), or not equal to a symbol (), is used in place of the equal sign "=" in the expression. Polynomial inequality, rational inequality, and absolute value inequality are the various types of inequalities that can exist in mathematics. The symbols "" and ">" signify tight inequalities, while "" and "" signify slack inequalities.

In the given question, the given inequality given is:

-3(2x-11) ≥ 8x-9;

Solving the Inequality:

⇒-6x + 33 ≥ 8x - 9;

⇒33 + 9 ≥ 8x - 6x;

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Hence,

The Linear inequality holds true for 21 ≥ x;

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4 0
1 year ago
You have two dollars and 50 Cent the gumballs in the machine cost $.25 each right and solve an inequality represents the number
vladimir2022 [97]

Answer:

The maximum number of gumballs you can buy is 10

Step-by-step explanation:

Let

x ---->represents the number of gumballs you can buy

we know that

The number of gumballs you can buy multiplied by it cost must be less than or equal to $2.50 (two dollars and 50 cents)

so

The inequality that represent this situation is

0.25x\leq 2.50

solve for x

Divide both sides by 0.25

x\leq 10

therefore

The maximum number of gumballs you can buy is 10

5 0
3 years ago
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