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labwork [276]
2 years ago
10

Find the quadratic equation whose roots are -3 and 1​

Mathematics
1 answer:
Dmitrij [34]2 years ago
8 0

Answer:

x²+2x-3=0

According to Vieta's formula:

x²-(Sum of roots)x+(product of roots)=0

Sum of roots=-3+1=-2

Product of roots=-3×1=-3

The equation is x²-(-2)x+(-3)=0

x²+2x-3=0

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Jackie’s report is 5 pages longer than half the number of pages in Kane’s report. There are 14 pages in Kane’s report.
olga_2 [115]

Answer:

12

Step-by-step explanation:

If Jackie's report is longer than half kane's report, then

Jackie report=1/2 kane's report +5

1/2(14) +5

7+5

=12

therefore, Jackie's report =12

pls mark brainliest

5 0
2 years ago
There is a pair of x and y values that make each equation true in this system of equations
MAXImum [283]

Given Equations

  • 5x+3y=8--(1)
  • 4x+7y=34--(2)

Let it has solution (x,y)

Add both

\\ \sf\longmapsto 5x+4x+3y+7y=8+34

\\ \sf\longmapsto 9x+10y=42

It will also have same solution (x,y)

5 0
2 years ago
49 PTS
ANTONII [103]

so i am sure you know that 1 hour is sixty minutes

so this is how it woulds

10/1 * 60/1 = 600 minutes

so that means that 10 hours would be equal to 600 minutes

then add on the 39 minutes

639

BUT WAIT there are the seconds

24/1 * 1/60 = 0.4

so 24 seconds is 0.4 (40%) of a minute

so it would take 639.4 minutes for saturn to make a full rotation

i hope this helped and please vote me for brainliest! have a nice day!

8 0
3 years ago
Read 2 more answers
Help please it’s needed
julia-pushkina [17]

Answer:

The reasonings I provided are just examples (they are true, though!). Hope this helps!

3 0
3 years ago
The college athletic director recorded the highest noise levels reached during 7 sporting events. The highs were:
sergiy2304 [10]

Answer:

90

Step-by-step explanation:

Mean:

(88 + 88 + 88 + 87 + 84 + 97 + 95)/7

627/7

89.57

90

8 0
3 years ago
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