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balu736 [363]
3 years ago
7

Please help me with 10 and 11

Mathematics
1 answer:
Gelneren [198K]3 years ago
5 0

Answer:

10. 2x+y

11. x^2-15x+3

Step-by-step explanation:

10. when u add 7x+3y and 4x+4y you will get 11x+7y. 13x+8y minus 11x+7y will be 2x+y

11. when u add 3x^2+7x+1 and x^2-x+1 u will get 4x^2+6x+2. 5x^2-9x+5 minus 4x^2+6x+2 will be x^2-15x+3

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2. A stock price rose 2.2 points in
Natasha_Volkova [10]

Answer: the total  price change in stock is fall of 3.2 points or -3.2 points.

Step-by-step explanation:

In integers , we use positive integers to show rise in amount whereas we use negative integers to show fall .

Given: A stock price rose 2.2 points in  Week 1.

i.e. +2.2 points rise.

The stock price fell 5.4  points in Week 2.

i.e. fall of -5.4.   (Much greater, than it rose)

The equation to represent the total  price change in stock would be

Total  price change = price rose in  Week 1 +  price fell  in Week 2.

= [+2.2 + (-5.4)] points

= 2.2 - 5.4 points   [ (+)(-) = (-)]

= -3.2 points

Hence, the total  price change in stock is fall of 3.2 points.

7 0
3 years ago
-30=3(y-6)-7y<br> What is y ??
bagirrra123 [75]

Answer:

I would say

y= 3

4 0
3 years ago
Read 2 more answers
In parallelogram ABCD, line AC is congruent to line BD. Is ABCD a rectangle?
Marina CMI [18]

9514 1404 393

Answer:

  A.  yes

Step-by-step explanation:

The diagonals of a rectangle are congruent and bisect each other.

The diagonals of a parallelogram bisect each other. If they are also congruent, then the parallelogram is a rectangle.

6 0
3 years ago
A triangle has side lengths 14,48, and 50 is it an acute angle an obtuse angle a right angle or no solution.
viva [34]

Answer:

No solution, a triangles angles must measure up to 180 degrees, and that clearly isnt close to it. Therefore, the answer is no solution. An obtuse is an angle greater than 90 degrees, whereas an acute is less.

Step-by-step explanation:

5 0
3 years ago
Using the number line below find the
bonufazy [111]

Answer:

0.3

Step-by-step explanation:

To find this probability, we need to know the distance from point H to P and the distance from point L to K, and then the probability of a random point in HP being inside LK will be the division of the distance from L to K by the distance from H to P:

H to P: distance = 15 - 5 = 10

L to K: distance = 10 - 7 = 3

Probability: LK/HP = 3/10 = 0.3

8 0
3 years ago
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