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Damm [24]
3 years ago
9

NEED HELP ASAP PLS HELP GIVING BRAINLIST!!!!!!!!!!

Mathematics
1 answer:
Naily [24]3 years ago
8 0

Hello there!

Reminder: Your question will be removed if you have more than 3 questions in the post.

1:

3 ( -3 + 7x ) ≤ - 93

-9  + 21x ≤ 93

93 + 9 = 102

102/21 = 4.857

4.857 --> 4.86

4.86  ≤  x

2:

-6 ( 1 + 8x ) ≥ 138

-6 - 48x ≥ 138

138 + 6 = 144

144/-48 = -3

x ≥ -3

3:

7 ( 6x -4 ) ≥ 6x - 28

42x - 28 ≥ 6x - 28

36x - 28 ≥ -28

-28 + 28 = 0

36x ≥ 0

4:

86 ≤ -4 ( 1-5x) -2x

86 ≤ -4 + 20x - 2x

86 ≤ -4 + 18x

90 ≤ 18x

90/18 = 5

x ≤ 5

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8/7 + 7/7 = ? Help please ?
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Answer:

15/7

Step-by-step explanation:

8/7 + 7/7 = 8+7 = 15

Therefore, the sum of 8/7 + 7/7 is equals to 15/7

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Answer: A

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Uh I don’t think so.

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According to the National Oceanic and Atmospheric Administration, the blue whale is the largest animal on Earth. Blue whales wei
never [62]

Answer: The blue whale's weight is 150 times heavier than the narwhal's weight.

Step-by-step explanation:

Given: Weight of Blue whale = 3\times10^5\text{ pounds}

Weight of Narwhal = 2\times10^3\text{ pounds}

Number of times blue whale's weight  is heavier than the narwhal's weight = =\dfrac{\text{Weight of Blue whale}}{\text{Weight of Narwhal }}

=\dfrac{3\times10^5}{2\times10^3}\\\\=1.5\times10^{5-3}\ \ \ [\dfrac{a^m}{a^n}=a^{m-n}]\\\\=1.5\times10^2\\\\=1.5\times100=150

Hence, the blue whale's weight is 150 times heavier than the narwhal's weight.

5 0
3 years ago
The function h (d) = 2d + 4.3 relates the height (h) of the water in a fountain in feet to the diameter (d) of the pipe carrying
mezya [45]

Answer:

h(1.5) = 7.3 ft

h(10.3) = 24.9 ft

Step-by-step explanation:

Given the function h(d) = 2d + 4.3,

where:

h = height of the water in a fountain (in feet)

d = diameter of the pipe carrying the water (in inches)

<h3>h(1.5)</h3>

Substitute the input value of d = 1.5, into the function:

h(1.5) = 2(1.5) + 4.3

h(1.5) = 3 + 4.3

h(1.5) = 7 feet

The height of the water in a fountain is 7 feet when the diameter of the pipe is 1.5 inches.

<h3>h(10.3)</h3>

Substitute the input value of d = 10.3, into the function:

h(10.3) = 2(10.3) + 4.3

h(10.3) = 20.6 + 4.3

h(10.3) = 24.9 feet

The height of the water in a fountain is 24.9 feet when the diameter of the pipe is 10.3 inches.

<h3>Context of the solutions to h(1.5) and h(10.3):</h3>

The solutions to both functions show the relationship between the diameter of the pipe to the height of the water in a fountain.  The height of the water in fountain increases relative to the diameter of the pipe.  In other words, as the diameter or the size of the pipe increases or widens, the height of the water in a fountain also increases.  

3 0
2 years ago
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