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2 years ago

14

Find the measure of the missing angles. 99 e f d

1 answer:

bearhunter [10]2 years ago

8 0

Answer:

E=99

F=72

D=90

Step-by-step explanation:

99 and e are vertical angles, so they are congruent. So now, you have 99+99+f+d=360.

$99+99+f+d=360.\\198+f+d=360$

D is a right angle, so add 90 degrees to your answer and solve from there.

$198+90+f=360\\288+f=360\\f=72$

99, 99, 90, and 72 should be the answers.

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Use set notation to write the members of the following set, or state that the set has no members. Odd numbers between 2 and 82 t

adell [148]

Let the set of all Odd multiples of 9 between 2 and 82 be denoted by D, then, using set-builder notation,

$D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}$

The odd multiples of 9, $m$ , in the range $2\le m \le 82$ form the set

$\{9,27,45,63,81\}$

Each member of the set is a term of the arithmetic progression

$U_n=18n+9$

where the values of $n$ range from 0 to 4, or $0\le n\le 4$

Putting these facts together, we get the result

$D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}$

Learn more about set-builder notation here: brainly.com/question/17238769

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3 years ago

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Juli2301 [7.4K]

Answer:

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2 years ago

Simplify:9-1÷2÷27^2÷3

sammy [17]

<u>First let's calculate the exponents.</u>

$27^2 : 729 = 9-1\div \:2\div \:729\div \:3$

<u>Now we should multiply and divide.</u>

<u /> $1\div2\div729\div3:\frac{1}{4374} = 9-\frac{1}{4374}$ <u />

<u>Now we should add and subtract.</u>

<u /> $9-\frac{1}{4374} :\frac{39365}{4374} = \frac{39365}{4374}$ <u />

<u>Convert the improper fractions into mixed numbers.</u>

<u /> $8\frac{4373}{4374}$ <u />

<u />

<u>Answer : </u>

<u /> $8\frac{4373}{4374}$ <u />

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3 years ago

(x-3)1/3 in its a simplest form

AleksandrR [38]

Answer: (x-3)/3

Step-by-step explanation:

You have to multiply the fraction.

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3 years ago

Use substitution method <br>3x +4y+175x-2y=11

Viefleur [7K]

$3x +4y+175x-2y=11$

$4y-2y+175x+3x=11$

$2y+178x=11$

$2y=11-178x$

$y=\frac{11-178x}{2}$

$y=-89x+\frac{11}{2}$

$178x=-2y+11$

$x=\frac{-2y+11}{178}$

$x=\frac{-1}{89} y+\frac{11}{178}$

4 0

3 years ago