0.847 times 3.54 What does it equal

Mathematics

2 answers:

Ronch [10]2 years ago

7 0

2.9983 is the answer

Brut [27]2 years ago

3 0

Answer: 2.99838 or rounding to nearest whole number it is 3

Step-by-step explanation:

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1. Which ordered pairs are solutions to the inequality –3x + y ≥ 7?

Murrr4er [49]

Q1. The answers are (–1, 8), (0, 7), (3, 18)

–3x + y ≥ 7
Let's go through all choices:

(–2, –3)
(-3) * (-2) + (-3) ≥ 7
6 - 3 ≥ 7
3 ≥ 7 INCORRECT

(–1, 8)
(-3) * (-1) + 8 ≥ 7
3 + 8 ≥ 7
11 ≥ 7 CORRECT

(0, 7)
(-3) * 0 + 7 ≥ 7
0 + 7 ≥ 7
7 ≥ 7 CORRECT

(1, 9)
(-3) * 1 + 9 ≥ 7
-3 + 9 ≥ 7
6 ≥ 7 INCORRECT

(3, 18)
(-3) * 3 + 18 ≥ 7
-9 + 18 ≥ 7
9 ≥ 7 CORRECT

Q2. The answers are:
5x + 12y ≤ 80
x ≥ 4
y ≥ 0

x - small boxes
y - large boxes

He has x small boxes that weigh 5 lb each and y large boxes that weigh 12 lb each on a shelf that holds up to 80 lb:
5x + 12y ≤ 80

Jude needs at least 4 small boxes on the shelf: x ≥ 4

Let's check if y can be 0:
5x + 12y ≤ 80
5x + 12 * 0 ≤ 80
5x + 0 ≤ 80
5x ≤ 80
x ≤ 80 / 5
x ≤ 16

x ≥ 4 can include x ≤ 16

So, y can be 0: y ≥ 0

8 0

2 years ago

Solve the proportion. x/4 = 2/5 x = ?

max2010maxim [7]

Multiply 4 on both sides.

x = 8 / 5

x = 1 3/5

Hope this helps!

8 0

2 years ago

Read 2 more answers

4. Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from

lana [24]

Answer:

5.099*10^14 m^2

Step-by-step explanation:

Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from the Sun. This "re-radiation" from the Earth is not visible because it its peak wavelength is in the infrared part of the spectrum. Even the coldest parts of the Earth are way above absolute zero, so every square meter of Earth’s surface is radiating this energy out to space. Using the same radius given in step 2 above, and the formula for the area of a sphere, calculate the surface area of the Earth.

(The radius of the Earth is 6,370,000 meters.)

The earth is spherical in shape , so we use the formula for finding the surface area of a sphere

Surface Area= $4\pi r^{2}$