3 years ago

Find the area of the triangle below. Be sure to include the correct unit in your answer. 15cm 7cm 21cm

Mathematics

1 answer:

Vlada [557]3 years ago

3 0

Answer:

the area of the triangle is 31.831cm

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A bassist and a pianist each wrote songs for their band. The pianist wrote 6 fewer than three times the number of songs that the

IRISSAK [1]

Answer:

Step-by-step explanation:

P+B=64

Let's say P=3*B - 6

This means that 3*B - 6 + B =64

Solve for B, which is 17.5

Solve for P using P=3*B-6, which is 46.5

This should be the answer

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3 years ago

ABCD is an isosceles trapezoid.

Eduardwww [97]

Answer:

∡b = 53°

∡d = 127°

∡c = 127°

Step-by-step explanation:

in trapezoids, the two top angles are equal and the two bottom are equal

also, there are 360 degrees in any 4-sided polygon

53 + 53 + x + x = 360

2x + 106 = 360

2x = 254

x = 127

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3 years ago

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The table shows where sixth grade students at Sharonton

e-lub [12.9K]

Did you add the picture of the table? I do not see it :(

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3 years ago

Are the set of all square numbers under 50 and the set of all triangular numbers that are less than 50 disjoint?

Alina [70]

Answer:

No, the two sets are not disjoint.

Step-by-step explanation:

Set of triangular numbers to 50: 1, 3, 6, 10, 15, 21, 28, 36, 45

Set of square numbers to 50: 1, 4, 9, 16, 25, 36, 49

They have 1 and 36 in common, so they are not disjoint, or in other words, they have some of the same numbers.

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3 years ago

If ln(a)=2, ln(b)=3, and ln(c)=5, evaluate the following:<br><br> ln(a^-4/b^1 c^1)

Mila [183]

Ln ( a^(-4) / b^1 c^1 ) =
= ln a ^(-4) - ( ln b + ln c ) =
= - 4 ln a - ln b - ln c =
= - 4 * 2 - 3 - 5 =
= - 8 - 3 - 5 = - 16

4 0

3 years ago