2 years ago

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Mathematics

1 answer:

dangina [55]2 years ago

5 0

Find all the angles and then divide or mutiply

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How do you find the missing variables in this problem please help

andrew-mc [135]

Answer:

x = 55, y = 70, z = 125

Step-by-step explanation:

125 and x are adjacent angles and are supplementary, then

x = 180 - 125 = 55

The triangle is isosceles ( 2 congruent sides ) thus the base angles are congruent, both 55

The sum of the 3 angles in the triangle = 180° , thus

y = 180 - (55 + 55) = 180 - 110 = 70

55 and z are adjacent and supplementary, so

z = 180 - 55 = 125

4 0

2 years ago

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Carole purchased 7/8 of a pound of chocolate chips to make cookies.On the way home from the store she got hungry and ate 1/4 of

Oksi-84 [34.3K]

7/8 (0.875) minus 1/4(0.25) = 0.625 (5/8)

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2 years ago

What is the constant in the expression 12q + 9e + 15

Talja [164]

Answer:

Step-by-step explanation:

the constant in this expression is 15

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2 years ago

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Find the determinant of the following matrix. A =<br>-2 6<br>3 5

Blababa [14]

Answer:

$|A| = - 28$

Step-by-step explanation:

Given

$A = \left[\begin{array}{cc}-2&6\\3&5\end{array}\right]$

Required

Determine the determinant

For a two by two matrix, A such that:

$A = \left[\begin{array}{cc}a&b\\c&d\end{array}\right]$

The determinant |A| is:

$|A| = a * d - b * c$

So, in

$A = \left[\begin{array}{cc}-2&6\\3&5\end{array}\right]$

The determinant is:

$|A| = -2 * 5 - 6 * 3$

$|A| = -10 - 18$

$|A| = - 28$

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2 years ago

(ii) Using a calculator, or otherwise, determine the exact value, to one decimal place, of 8792-6886 12 X 9

omeli [17]

Answer: I did it in the explanation thingy-

Step-by-step explanation:

Step 1. 8792 - 6886 = 1906

Step 2. 12 x 9 108

That... OR the answer is 205848X

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2 years ago