hallkayleel0lozgxtq
15.11.2019 •
Mathematics
Someone me with math! will give brainliest to first person who
solve each system by substitution.
1. -5x-8y=9
y= -3.
2. y= -3x
-6x-2y=3
3. 6x+5y=10
y=-8x+2
4.6x+2y= -6
y= -3x -3
you!
Solved
Show answers
More tips
- L Leisure and Entertainment What to Bring on a Hike? Essential Items to Pack for a Safe and Enjoyable Adventure...
- S Style and Beauty How Are Eyelash Extensions Applied? All Your Questions Answered...
- F Family and Home Tender Care for Your Parquet: Is it Possible to Clean Parquet?...
- S Society and Politics Is It Fact or Fiction? Let s Talk About Anton Chekhov s Pseudonym...
- S Sport Playing Bowling: Rules and Advice for Novices...
- C Computers and Internet How to Properly Repartition a Hard Drive?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
Answers on questions: Mathematics
- M Mathematics Me ! ralph ate 1/2 of a pie before dinner. after dinner he ate 1/3 of what was left. what fraction of the pie did he eat after dinner?...
- M Mathematics The increase in the number of tomato plants can be represented by an arithmetic sequence. The first measurement yields 38 plants. If the number of plants increases...
- M Mathematics Page 6 of 10 printed 2/22/21 8 When three squares are joined at their vertices to form a right triangle, the combined area of the two smaller squares is the same...
- M Mathematics Solve 2x2 + 8x - 12 = 0 by completing the square. What are the solutions? O 1-2+ T6-2-16) O 1-2 + V10,-2 - 10 O 12- 10,2 - 10] Answer quick...
- G Geography What is the area of the hexagon 5cm 8cm 9.28cm...
- B Biology Describe what happens with blood glucose after you something...
- A Arts Plz help fast 1. w/music Why do you think preparation is essential for an effective musical performance?...
- E English Type in the correct form of the verb for the sentence below. use exact spelling. a nest of wasps (was, were) attached to one of the rafters....
Ответ:
-5x+24=9
-5x=-15
x=3
(3,-3)
2. -6x-2(-3x)=3
-6x+6x=3
0=3
No solution
3. 6x+5(-8x+2)=10
6x-40x+10=10
-34x+10=10
-34x=0
x=0
y=-8(0)+2
y=2
(0,2)
4. 6x+2(-3x-3)=-6
6x-6x-6=-6
-6=-6
Infinitely many solutions
Ответ:
r represents a significant linear correlation.
Step-by-step explanation:
GIven : Linear correlation coefficient: r = 0.543
Sample size: n= 25
Significance levle:
Degree of freedom : n-2 = 25-2=23
Now, we check r critical value table for value with df = 23 and
.
Critical value = ±0.396 [From r critical value table]
Since r = 0.543 > 0.396, that means there is significant linear correlation.
Hence, r represents a significant linear correlation.