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Kruka [31]
3 years ago
7

The following equation has been solved incorrectly. Explain the students error​

Mathematics
2 answers:
balandron [24]3 years ago
6 0
On the right side of the equation, when the student combined like terms, 7x and -4x, they did not combine them correctly. Instead of combining them correctly, the student forgot to include the sign of the -4x which caused the sum of the two terms to be 11x instead of 3x. Hope this helps!
svlad2 [7]3 years ago
3 0
What he said ^^ no problem
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The diameter of Jupiter is 142.984 Km. The surface area of Saturn is 59.9% the surface area of Jupiter. What is Saturn's diamete
Otrada [13]
Suppose that both planets are spherical. radius of Saturn =142984/2=71,492

Area of Jupiter = 4πr² ==>4π(71,492)² =6.4228 x 10^10

Area of Saturn ==>(6.4228 x 10^10)x(0.599) ==>3,84726 x 10^10

Radius of Saturn = 4πr² =3,84726 x 10^10==> r²=3,0219 x 10^10
and r √(,0219 x 10^10) = 174.000 km & D = 384,000 km
5 0
3 years ago
Help please max points
denis-greek [22]

Answer:

(P,O)(M,N)(M,P)(N,O)

Step-by-step explanation:

brainliest pleeez

4 0
2 years ago
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3. Describe the type of transformation used to produce​
earnstyle [38]

Answer:

Reflection over the x- axis

Step-by-step explanation:

6 0
2 years ago
Use technology or a z-score table to answer the question.
AlexFokin [52]

Answer:

D. 100

Step-by-step explanation:

1. Find the z-score: 165-176/11.4 = -1.2

2. Find the percentage of the z-score. Here it's 16.85%

3. Because we are searching for the amount of members that weigh MORE than 165 pounds and not LESS, we need to find the greater percentage by subtracting 16.85% from 100% which is 83.15%. This is the percentage of people that weigh more than 165 pounds.

4. Multiply the percentage by the number of members: 83.15%*120 = 99.78

5. Round it to a whole number because someone can't be 0.78 of a person. You get 100 members.

Also, I took the test :)

7 0
3 years ago
How do I simplify by combining these numbers -3x - 5y + 2x + 10y
Wewaii [24]
They are basically like groups. Take -3x+2x , Just do -3 +2 = -1 and then just add the x. So -1x. Next you have -5y+10y . Just do -5 + 10 = 5 and remember to add the x on so your final answer should be -1x + 5y 
4 0
3 years ago
Read 2 more answers
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