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UNO [17]
3 years ago
7

Which statement is true? The equation –3|2x + 1.2| = –1 has no solution. The equation 3.5|6x – 2| = 3.5 has one solution. The eq

uation 5|–3.1x + 6.9| = –3.5 has two solutions. The equation –0.3|3 + 8x| = 0.9 has no solution.
Mathematics
2 answers:
Marina CMI [18]3 years ago
8 0

Answer:

-.3|3+8x|=.9 has no solution

Step-by-step explanation:

There was not outcome for x when you solve it

Flura [38]3 years ago
4 0

Answer:

d

Step-by-step explanation:

just took the quiz and got it right :)

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A cylindrical tank has a diameter of 2.5 feet and a height of 4.8 feet. what is the lateral surface area of the tank to the near
blsea [12.9K]

Answer:

This is approximately 37.7 ft^{2} to the nearest hundredth

Step-by-step explanation:

First of all, we will need to understand that to find the lateral surface area of the cylinder, we simply need to multiply the circumference of the circular base by the height of the cylinder.

In this case, the circumference of the circular base can be obtained by the formula

2 \pi r

Hence we will have the circumference as 2 \times \pi \times \frac{2.5}{2}=7.85 feet

Tp get the Lateral area, we will simply have to multiply this value (7.85 feet )

by the height (4.8 feet)

7.85 X 4.8 =37.68 feet ^{2}

This is approximately 37.7 ft^{2} to the nearest hundredth

8 0
3 years ago
The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass
Marat540 [252]

Answer:

= 4 grams

Step-by-step explanation:

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass.

Therefore, using the formula;

N = O × (1/2)^n ; where N is the new mass, O is the original mass, and n is the number of half lives.

In this case;

N = 130 × (1/2)^5

   = 130 × 1/32

   = 4.0625

   ≈ 4 g

6 0
4 years ago
I don’t get it and I need help
Tema [17]

You need to set up an equation: Since you know that each guest costs x dollars, and there are 10 guests,

y=10x (10 guests each cost x dollars)


But there is also a fixed rental fee of $50


y=10x+50


Hope this helped :) If so, leave a rating :)

5 0
3 years ago
Help on my math please
gladu [14]
I don't quite understand im sorry
5 0
3 years ago
Which list shows the temperatures from warmest to coldest?
Dimas [21]

Step-by-step explanation:

6,0,-4,-12 this is the one that makes the most sense

7 0
3 years ago
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