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kumpel [21]
4 years ago
12

Hey there! posted picture of question help please

Mathematics
1 answer:
Harman [31]4 years ago
4 0
Hey there :)

If x is the principle square root of 7, what must be true?

x² = 7 will be true and x will be positive

Therefore, your answer will be \boxed {Option \ B }
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At which root does the graph of f(x) = (x + 4)(x + 7,5) cross the x-axis?<br> -7<br> -4<br> 4<br> 7
Alona [7]

Answer:

Answer: -7

Step-by-step explanation:

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2 years ago
Leroy can lay 144 bricks in 3 hours. At this rate , how many bricks can he lay in 7 hours
yawa3891 [41]

Answer:

336

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Leroy can lay 48 bricks per hour.  

48 x 7 equals 336

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4 years ago
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How many times does a thousand go into 1,000,000,000
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7 0
3 years ago
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Help me find this answer 40 points
anastassius [24]

Answer:

B

Step-by-step explanation:

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7 0
3 years ago
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It was estimated that because of people switching to Metro trains about 33000 of CNG 3300 tons of diesel and 21000 tons of petro
Simora [160]

The question is incomplete. Here is the complete question

It was estimated that because of people switching to Metro trains about 33000 of CNG 3300 tons of diesel and 21000 tons of petrol was saved by the end of year 2007 (I) find a fraction of the quantity of diesel saved to the quantity of petrol saved (ii) find the quantity of cng to the quantity of diesel saved

Answer:

(I) 11/70

(II) 1/10

Step-by-step explanation:

Metro trains contain 330,000 tons of CNG

3300 tons of diesel was saved

21000 tons of petrol was saved at the end of 2007

(I) The fraction of the quantity of diesel saved to the quantity of petrol saved can be calculated as follows

= 3300/21000

= 11/70

(II) The fraction of the quantity of CNG saved to the quantity of diesel can be calculated as follows

= 3300/33000

= 1/10

5 0
4 years ago
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