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pentagon [3]
3 years ago
13

Simplify (5x - 7y) - ( x + 3y)

Mathematics
1 answer:
ruslelena [56]3 years ago
4 0
This equation simplified is: 14x - 10y



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Determine the area under the standard normal curve that lies to the right of the z-score 0.48 and to the left of the z-score 0.7
pychu [463]

Answer:

The area lies to the right of the z-score 0.48 means all the values greater than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = 0.48
  • Upper bound = 9999
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(0.48,9999,0,1) ≈ </u><u>0.315614</u>

<u />

The area lies to the left of the z-score 0.79 means all the values less than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = -9999
  • Upper bound = 0.79
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(-9999,0.79,0,1) ≈</u><u> 0.785236</u>

6 0
3 years ago
Chris Johnson ran the 40- yard dash in 4.24 seconds. What is the rate of speed? Round any answer to the nearest hundredth
sineoko [7]
Distance divided by time is speed. To find the rate of speed, divide 40 yards by 4.24 seconds which is approximately 9.43 yards per second. 9.43 yards per second is the rate of speed.
5 0
3 years ago
Someone please help me!!!!
viktelen [127]

Answer:

5) is x=5 you set those expressions egual to 180 then solve for x. 6) they both equal 60 degrees because you set them both equal then substitute for x. 7) the -13x+39 angle is 143 and the other is 37.  

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Which expression is equivalent to z2 + z + 4z3 + 4z2 ?
pshichka [43]
I know the answere it is c
5 0
3 years ago
10
motikmotik

9514 1404 393

Answer:

  • The are congruent.
  • They are non-adjacent.

Step-by-step explanation:

Where a transversal crosses parallel lines, the angles outside the parallel lines are called exterior angles. When they are on opposite sides of the transversal, they are <em>alternate exterior angles</em>.

Alternate exterior angles are congruent.

The share a side (the transversal, but not a vertex. So they are non-adjacent.

_____

<em>Additional comment</em>

In this geometry, <em>corresponding</em> angles are congruent. Of course, vertical angles are always congruent. Each alternate exterior angle is a vertical angle with one that is corresponding to the other alternate exterior angle.

5 0
3 years ago
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