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3 years ago

Solve the system using elimination. 5x + 8y = –29 7x – 2y = –67

1 answer:

8 0

7x-2y+-67
multiply both sides of the bottom by 4 and add 5x+8y=-29 
 28x-8y=268

33x=-297
 x=-9 

5(-9) +8y= -29 
-45 +8y =-29 
8y= 16 
y=2

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In triangles ABC and LMN, ∠A ≅ ∠L, ∠B ≅ ∠M, and ∠C ≅ ∠N. Is this information sufficient to prove triangles ABC and LMN congruent

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Answer:

Step-by-step explanation:

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2 years ago

Here are the shopping times (in minutes) of ten shoppers at a local grocery store.

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The frequency which is to filled in the table is 3,1,2,4.

Given shopping time of ten shopkeeper: 36,20,32,18,20,33,28,34,37,23.

We have to complete the frequency in the table. Frequency of something is the number of times that number is coming.

Shopping time is given as 36,20,32,18,20,33,28,34,37,23.

Intervals for which frequency is given is 18 to 22, 23 to 27, 28 to 32, 33 to 37.

Numbers in the range 18 to 22=18,20,23 therefore 3

Numbers in the range 23 to 27=23 therefore 1

Numbers in the range 28 to 32=32 , 28 therefore 2

Numbers in the range 33 to 37=36, 33, 37, 34 therefore 4.

Hence the frequency which is to filled are 3,1,2,4.

Learn more about frequency at brainly.com/question/254161

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2 years ago

Quadrilateral A has side lengths 2,3,5 and 6. Quadrilateral B has side lengths 4,5, 8 and 10. Could one of the quadrilaterals be

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Answer:

Step-by-step explanation:

Given

Quadrilateral A: 2,3,5 and 6

Quadrilateral B: 4,5, 8 and 10

Required

Determine if one is a scale of another

To do that, we have to divide the corresponding lengths to give ratio.

Considering Side of A = 2 and Side of B = 4

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There's no need to check further, since the two ratios calculated so far do not have the same value;

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