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nevsk [136]
3 years ago
7

Geoffrey thinks that the sum of 5x2y3+6x+7y and 8y+4x3y2+2xis 9x2y3+8x+15y. Explain Geoffrey's error, and find the correct sum.

Mathematics
1 answer:
Schach [20]3 years ago
6 0
He subtracted instead of added

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Type in expanded form. Use parentheses to indicate multiplication.<br><br> (-3x)^4
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Negative 3x over the power by four
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3 years ago
P is the incenter of △JKL. Find m∠JKP.<br> &amp; can you please explain
dangina [55]

Answer:

  • m∠MKP = 35°

Step-by-step explanation:

<u>Incenter is the intersection of angle bisectors.</u>

  • ∠MJP = ∠OJP, ∠MKP = ∠NKP, ∠NLP = ∠OLP

<u>First find the value of x:</u>

  • 7x - 6 = 5x + 4
  • 7x - 5x = 4 + 6
  • 2x = 10
  • x = 5

<u>Find the angle MJP:</u>

  • 7*5 - 6 = 29°

<u>We know sum of interior angles of a triangle is 180°. Using this find the missing angle measure:</u>

  • 2*m∠MJP + 2*m∠NJP + 2*m∠MKP = 180°
  • m∠MJP + m∠NJP + m∠MKP = 90°
  • 29° + 26° + m∠MKP = 90°
  • m∠MKP = 90° - 55°
  • m∠MKP = 35°
7 0
3 years ago
Please help. Please explain. Please get it correct!
dangina [55]

Answer:5/6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
a clerk earns $7.50 an hr, plus a commission of 5% of sales. if she works a 40 hr week and sells $6300 worth of goods, what does
ehidna [41]

Givens

Work week = 40 hours

Paid 7.50 an hour.

Sells 6300 worth of goods.


Equation

Take home pay = Sales * 5% + 7.50 * number of hours.


Sub and Solve

Take home pay = 6300 * 5% + 7.50 * 40

Take home pay = 6300 * 5/100 + 7.50 * 40

Take home pay = 315 + 300

Take home pay = 615 dollars.


Answer 615 <<<<

3 0
3 years ago
Read 2 more answers
Help quick please, look at the photo I attached
Tema [17]

Answer:

A ≈ 5.6

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = \frac{1}{2} × PQ × PR × sin P

   = 0.5 × 5.2 × 2.8 × sin50°

   ≈ 5.6 ( to 1 dec. place )

3 0
3 years ago
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