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Kaylis [27]
3 years ago
13

Solve x² + 11x +18=0 by factoring.

Mathematics
1 answer:
kirill [66]3 years ago
5 0
-(11+sqrt(121-4*18))/2 = -(11 +sqrt(49))/2 = -9

Or

-(11-sqrt(121-4*18))/2 = -(11-sqrt(49))/2 = -2

D is the answer
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A group of 4 friends shares 2 packs of gum equally. There are 8 pieces of gum in
White raven [17]

Answer:

Each friend receives 4 pieces of gum. The answer is B).

Step-by-step explanation:

2 packs of gum=2*8=16 pieces of gum in total,

16/4=4

3 0
4 years ago
Peter invests £3000 for 2 years in a saving account. He was paid 3% per annum compound interest. How much did Peter have in his
madam [21]

Answer:

£3182.7

Step-by-step explanation:

£3000=100%

? =3%

3×3000/100

=£90

£(3000+90)=£3090(1st year)

£3090=100%

? =3%

3×3090/100=£3182.7

4 0
3 years ago
No files please........
FinnZ [79.3K]

√7(-8√10+√14)

-8√70+√98

-8√70+√49.2

-8√70+7√2

Just comment if you want to ask

3 0
3 years ago
Juan roller skated for 2 hours 40 minutes with a constant speed of 18 m/h and then for another 1 hour 50 minutes with a constant
Nikolay [14]

Answer: 136 m

Step-by-step explanation:

For first interval,

Time = 2 hours 40 minutes  = 2+\dfrac{40}{60}\text{ hours}\ [\text{1 hour = 60 minutes}]

=2+\dfrac{2}{3}=\dfrac{8}{3}\ \text{hours}

Speed = 18 m/h

Distance = \dfrac{8}{3}\times18=48\ m[Formula : Distance=Speed x time]

For second interval,

Time = 1 hour 50 minutes  = 1+\dfrac{50}{60}\text{ hours}\ [\text{1 hour = 60 minutes}]

=1+\dfrac{5}{6}=\dfrac{11}{3}\ \text{hours}

Speed = 24 m/h

Distance = \dfrac{11}{3}\times24=88\ m

Total distance = 48 m +88 m = 136 m

Hence, he went 136 m.

8 0
3 years ago
What is 71% of 1,000?
pantera1 [17]

Answer:710

Step-by-step explanation:

10 x 10 is 100

100 x 10=1000

71 x 10=710

8 0
3 years ago
Read 2 more answers
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