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Elenna [48]
4 years ago
13

Which ones are the correct ones?

Mathematics
2 answers:
kirill115 [55]4 years ago
8 0

Answer:

a) 5/-6, - 5/6

b) 7/-2, -7/2

Step-by-step explanation:

schepotkina [342]4 years ago
3 0

Answer:

a) = 2nd nad 4th

b) = 3rd and 4th

When there is one negative it stays negative

Two negatives =  a positive

<em><u>Hope this helps</u></em>

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Hi can anybody tell me the answer
Marta_Voda [28]

Answer:

(3x + 4) ^{2}

hope this helps

7 0
3 years ago
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If a memory card is 2/3 the way full at 375 what is the total memory card
SIZIF [17.4K]

Answer:

<h2>562.5</h2>

Step-by-step explanation:

375/2=187.5

187.5*3=

<h2>562.5</h2>
6 0
3 years ago
If anyone knows this I will give them brainiest
statuscvo [17]

Answer:

x = 12

m(QS) = 52°

m(PD) = 152°

Step-by-step explanation:

Recall: Angle formed by two secants outside a circle = ½(the difference of the intercepted arcs)

Thus:

m<R = ½[m(PD) - m(QS)]

50° = ½[(12x + 8) - (4x + 4)] => substitution

Solve for x

Multiply both sides by 2

2*50 = (12x + 8) - (4x + 4)

100 = (12x + 8) - (4x + 4)

100 = 12x + 8 - 4x - 4 (distributive property)

Add like terms

100 = 8x + 4

100 - 4 = 8x

96 = 8x

96/8 = x

12 = x

x = 12

✔️m(QS) = 4x + 4 = 4(12) + 4 = 52°

✔️m(PD) = 12x + 8 = 12(12) + 8 = 152°

3 0
3 years ago
The porch light is an automatic switch that will start turning on at 19.00 - 19.30 or 20.00 - 21.00 at random. The lights will a
NeTakaya
  • Turning on time be x
  • Turning of time be y

If 19:00<=x<=19:30 and 4:00<=y<=6:00

Total time difference

\\ \sf\longmapsto 6:00-19:30=10:30

  • In order to mange time between 9--10 hours 30 minutes should be deducted in pairs from starting and ending .By which net deduction i e x-y=0

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  • Total ending options=x=15
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Probability=

\\ \sf\longmapsto P(E)=\dfrac{1}{30}

7 0
3 years ago
a science class have five girls and three boys in 7th grade at two girls and two boys in the 8th grade the teacher randomly sele
Elena-2011 [213]

Answer:

Possibility that the students  selected are both girls = 31.25%


Step-by-step explanation:

It is given that


A science class have 5 girls and 3 boys in 7th grade  

And 2 girls and 2 boys in the 8th grade

In 7th grade total students = 8

In 8th grade total students = 4

Total possibilities = 8 x 4 = 32

The teacher randomly selects a 7th grade and an 8th grade


The number ways a girl selected from 7th grade = 5c1 = 5


The number ways a girl selected from 8th grade = 2c1 = 2


Total possibilities = 5 x 2 = 10

Probability that the students  selected are both girls =10 /32 = 31.25%

6 0
4 years ago
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