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2 years ago

Find a, b, and c please and thank u

Mathematics

1 answer:

aniked [119]2 years ago

4 0

A= 80
b= 100
c= 100

a is the same as the 80° already shown and to get b you have to subtract 80 from 180

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Cuales son los divisores de 12

Serga [27]

Answer:

1, 2, 3, 4, 6, 12

Step-by-step explanation:

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3 years ago

Read 2 more answers

Tenisha solved the equation below by graphing a system of equations.

Yuri [45]

Answer:

Option B.)

Step-by-step explanation:

Just took the test and got 100% :]

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3 years ago

The value of the digit 9 in the number 29,461 is 10 times the value of the digit 9 in which number?

Nadusha1986 [10]

Answer:

900

Step-by-step explanation:

because the value of 9 in 29,461 is 9000

9000 ÷ 10 is 900

8 0

2 years ago

Lin decides to solve the equation using the quadratic formula. Here is her work: xxx=−b±b2−4ac−−−−−−−√2a=−(−6)±(−6)2−4(1)(10)−−−

Sedbober [7]

Answer:

$x = 3 + i\ or\ x = 3 - i$

Step-by-step explanation:

Given

$x = \frac{-(-6) \± \sqrt{(-6)^2 - 4(1)(10)}}{2*1}$

Required

Solve, in terms of i

We have:

$x = \frac{-(-6) \± \sqrt{(-6)^2 - 4(1)(10)}}{2*1}$

Solve the expressions in bracket

$x = \frac{-(-6) \± \sqrt{36 - 40}}{2*1}$

$x = \frac{-(-6) \± \sqrt{-4}}{2}$

Express -4 as 4 * -1

$x = \frac{-(-6) \± \sqrt{-4*1}}{2}$

Split

$x = \frac{-(-6) \± \sqrt{4}*\sqrt{-1}}{2}$

In complex numbers;

$i = \sqrt{-1$

So, we have:

$x = \frac{-(-6) \± 2*i}{2}$

$x = \frac{6 \± 2i}{2}$

Factorize

$x = \frac{2(3 \± i)}{2}$

$x = 3 \± i$

Split

$x = 3 + i\ or\ x = 3 - i$

7 0

3 years ago

For what values of a are the following expressions true?/a+5/=-5-a

katovenus [111]

Explanation:

The expression is given below as

$|a+5|=-5-a$

Concept:

We will apply the bsolute rule below

$\begin{gathered} if|u|=a,a>0 \\ then,u=a,u=-a \end{gathered}$

By applying the concept, we will have

$\begin{gathered} \lvert a+5\rvert=-5-a \\ a+5=-5-a,a+5=5+a \\ a+a=-5-5,a-a=5-5 \\ 2a=-10,0=0 \\ \frac{2a}{2}=\frac{-10}{2},0=0 \\ a=-5,0=0 \end{gathered}$

Hence,

The final answer is

$a\leq-5$

5 0

1 year ago