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Aleksandr-060686 [28]
3 years ago
7

Knowing that sin 30° = 1/2 , what is a?

Mathematics
2 answers:
sergeinik [125]3 years ago
5 0

Answer:

Answer: B (14)

Step-by-step explanation:

Think- what is 7 half of? 7x2 = 14. Therefore, 14 will be your answer

umka2103 [35]3 years ago
3 0

Answer: D

Step-by-step explanation:

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CAN SOMEONE PLEASE HELP ME SOLVE THESE ASAP
Mariulka [41]

so for the 1st one triangle is 8

diamond is 3

and star is 11

the second one star is 5

diamond is 5

and triangle is 2 again

and for the last one well try to do it yourself and if you cant do it comment on this =)

8 0
3 years ago
What is 8 3/4 - 7 1/2
lara31 [8.8K]

let's firstly convert the mixed fractions to improper fractions and then subtract, bearing in mind that the LCD of 4 and 2 is 4.

\bf \stackrel{mixed}{8\frac{3}{4}}\implies \cfrac{8\cdot 4+3}{8}\implies \stackrel{improper}{\cfrac{35}{4}}~\hfill \stackrel{mixed}{7\frac{1}{2}}\implies \cfrac{7\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{15}{2}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{35}{4}-\cfrac{15}{2}\implies \stackrel{\textit{using the LCD of 4}}{\cfrac{(1)35~~-~~(2)15}{4}}\implies \cfrac{35-30}{4}\implies \cfrac{5}{4}

6 0
3 years ago
Can y’all please help me with those question
nasty-shy [4]

Step-by-step explanation:

The Fifteenth Amendment had the most long and short term effects. It helped the Republican Party to win in 1870, and this party brought extreme changes to the south. With the passing of this amendment, African Americans felt more empowered to participate in politics and hold office.

The Fifteenth Amendment had the most long and short term effects. It helped the Republican Party to win in 1870, and this party brought extreme changes to the south. With the passing of this amendment, African Americans felt more empowered to participate in politics and hold office.

The Fifteenth Amendment had the most long and short term effects. It helped the Republican Party to win in 1870, and this party brought extreme changes to the south. With the passing of this amendment, African Americans felt more empowered to participate in politics and hold office.

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3 0
3 years ago
Read 2 more answers
Solve it if you can...... very easy 11th grade question ​
sasho [114]

Answer:

Part 1) {0,1,2,3,4}

Part 2) {February, April, June,September, November}

Part 3) {L, M, N, P, Q, R, S, T, V, W,X,Y, Z}

Step-by-step explanation:

Part 1) List the elements of the set

x is an integer for the interval (-1/2,9/2)

Remember that

-1/2=-0.5

9/2=4.5

so

we know that

The integers in the given interval are

(-0.5,4.5)

therefore

The elements of the set are

{0,1,2,3,4}

Part 2) List the elements of the set

x is an month of the year which does not contain 31 days

The months which not contains 31 days are

February, April, June,September, November

therefore

The elements of the set are

{February, April, June,September, November}

Part 3) List the elements of the set

x is a consonant of English alphabet which comes before k

we know that

The 21 consonant letters in the English alphabet are

B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W,X,Y, Z

so

The consonant of English alphabet which comes before k are

L, M, N, P, Q, R, S, T, V, W,X,Y, Z

therefore

The elements of the set are

{L, M, N, P, Q, R, S, T, V, W,X,Y, Z}

3 0
3 years ago
If a+b+c=6,ab+bc+ca=11,then what is a3+b3+c3-3abc
kipiarov [429]

(a+b+c)^3=a^3 +b^3+c^3-2(ab+ac+bc)

216=a^3+b^3+c^3-2(11)

a^3+b^3+c^3=238

but ıdk how can ı find -3abc :/

7 0
3 years ago
Read 2 more answers
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