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Svetllana [295]
3 years ago
7

Help me please thank

Mathematics
2 answers:
pickupchik [31]3 years ago
7 0
37 students get at most 67 scores.

The numbers 60-67 represent the lower quartile (lowest 25%). 25% of 60 is 15 not 30. Therefore it is incorrect.
daser333 [38]3 years ago
3 0

Answer:

37 students get at most 67 scores.

Step-by-step explanation:

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Use the numbers -4, -1, 3/2, or 2/3 to write an expression that is less than -4
nikdorinn [45]

Answer:

-4+ -1 = -5 which is less that -4

7 0
2 years ago
Prove the identity.<br> tan(x − y) + tan(z − x) + tan(y − z) = tan(x − y) tan(z − x) tan(y − z)
Viktor [21]

Step-by-step explanation:

This is known as the triple tangent identity.  Start with the fact that the three angles add up to 0.

(x − y) + (z − x) + (y − z) = 0

Subtract two terms to the other side and take the tangent:

x − y = -((z − x) + (y − z))

tan(x − y) = tan(-((z − x) + (y − z)))

Use reflection property:

tan(x − y) = -tan((z − x) + (y − z))

Now use angle sum identity:

tan(x − y) = -[tan(z − x) + tan(y − z)] / [1 − tan(z − x) tan(y − z)]

tan(x − y) = [tan(z − x) + tan(y − z)] / [tan(z − x) tan(y − z) − 1]

tan(x − y) [tan(z − x) tan(y − z) − 1] = tan(z − x) + tan(y − z)

tan(x − y) tan(z − x) tan(y − z) − tan(x − y) = tan(z − x) + tan(y − z)

tan(x − y) tan(z − x) tan(y − z) = tan(x − y) + tan(z − x) + tan(y − z)

4 0
3 years ago
What is three billion,two million,forty-two thousand, seven hundred sixty-five in expanded form
Shtirlitz [24]
3,000,000,000+2,000,000+40,000+2,000+70*+60+5
7 0
3 years ago
$199 ring; 10% discount
docker41 [41]

Answer:

19 9/10

10 percent = 1/10

1/10*199=199/10

199/10=19 9/10

3 0
3 years ago
What is the quotient written in scientific notation? 6 x 10^24 /8 x 10^8
Artist 52 [7]

When you divide 6x10^24 by 8x10^8 you end up with \frac{6}{8} x10^{16}

This simplifies to 0.75x10^{16}

Now this number is not written in scientific notation as it does not have its first digit before the decimal, so we must move the decimal of this one to the right.

To do that you must multiply the number by 10.

This means that the exponet of 10 must decrease by 1.

This makes the answer 7.5x10^{15}

6 0
3 years ago
Read 2 more answers
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