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kirill [66]
3 years ago
13

BRAINLIEST PROMISED! ;)IT WILL TELL ME IF YOU ARE WRONG!SELECT ALL THAT APPLY!

Mathematics
1 answer:
Anarel [89]3 years ago
8 0

Triangle ABC:

m∠A = x°       (m∠A is represented by x°)

m∠B = (4x)°        (m∠B is 4 times greater than m∠A, you know m∠A is x°, so it is (4x)°)

m∠C = (5x - 30)°      (m∠C is 30° less than five times m∠A, so it is (5x - 30)°)


A triangle is 180°, so the angles in the triangle should add up to 180°


The second option is FALSE, so everything else is true

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If 7 4/5 of the total came to 109,200, what is the total?
Olenka [21]
Let’s divide this fully into 5ths to make it easier.

7 and 4/5 also equals 39/5.
39 is what we call a prime number so we can’t factor 109200 with it, so all we have left that we can do is divide.
109200/39=$2800
$2800 is 1/5 of the total, so just multiply that by 5 and you have your answer!
2800x5=$14,000.

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Afina-wow [57]
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The boiling point of a substance in City A is found to be 145 °C. The boiling point of the same substance in City B is 141 °C. W
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2 years ago
Find with proof the minimum possible k such that every subset of f1; 2; : : : ; 2022g of size k must contain at least two elemen
Helga [31]

Answer:

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Step-by-step explanation:

Attached below is the detailed solution

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6 0
2 years ago
FACTOR the following quadratic expression: x^2-3x-18. Clearly show your steps OR explain your reasoning and CHECK your answer by
kakasveta [241]

Answer:

The factors of x² - 3·x - 18, are;

(x - 6), (x + 3)

Step-by-step explanation:

The given quadratic expression is presented as follows;

x² - 3·x - 18

To factorize the given expression, we look for two numbers, which are the constant terms in the factors, such that the sum of the numbers is -3, while the product of the numbers is -18

By examination, we have the numbers -6, and 3, which gives;

-6 + 3 = -3

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Therefore, we can write;

x² - 3·x - 18 = (x - 6) × (x + 3)

Which gives;

(x - 6) × (x + 3) = x² + 3·x - 6·x - 18 = x² - 3·x - 18

Therefore, the factors of the expression, x² - 3·x - 18, are (x - 6) and (x + 3)

6 0
2 years ago
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