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andreyandreev [35.5K]
3 years ago
10

Help me please m, it due soon

Mathematics
1 answer:
allsm [11]3 years ago
5 0
Surface area= 2(6x15)+2(7x15)+2(6x7)
=180+210+84
=474m

Volume=15x6x7
=630m^2
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Instructions:select all the correct locations on the tables. andrew wants to purchase a new television with a screen length that
DaniilM [7]

The <em>correct answers</em> are:


5x²+70x+245 ≥ 1050; and

Yes.


Explanation:


Let x be the width of the tablet. Since the width of the TV is 7 inches more than the tablet, the width of the TV would be x+7.


The length of the TV is 5 times the width; this makes the length 5(x+7) = 5x+35.


The area of the TV would be given by

(x+7)(5x+35).


Since Andrew wants the area to be at least 1050, we set the expression greater than or equal to 1050:

(x+7)(5x+35) ≥ 1050


Multiplying this, we have:

x*5x+x*35+7*5x+7*35 ≥ 1050

5x²+35x+35x+245 ≥ 1050


Combining like terms,

5x²+70x+245 ≥ 1050


To see if 8 is a reasonable width for the tablet, we substitute 8 for x:

5(8²)+70(8)+245 ≥ 1050

5(64)+560+245 ≥ 1050

320+560+245 ≥ 1050

1125 ≥ 1050


Since this inequality is true, 8 is a reasonable width.

5 0
2 years ago
A snowmobile traveled 32 miles in 2 1/3 hours.
laila [671]

Answer:

13.7 mph

Step-by-step explanation:

• d = st

Given:

  • d = 32 miles
  • t = 2 1/3 hr = 7/3 hr

Find the rate s:

  • s = d/t
  • s = 32-7/3 = 32 x 3/7 = 96/7 = 13.7 mph (rounded)
5 0
2 years ago
Evaluate the expression for<br> a = 14, b = 29, c = 1, d = 1:<br> a + b - C-d
grandymaker [24]

Answer:

<h2><em>4</em><em>1</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>a</em><em>=</em><em>1</em><em>4</em>

<em>b</em><em>=</em><em>2</em><em>9</em>

<em>c</em><em>=</em><em>1</em>

<em>D=</em><em>1</em>

<em>Now</em><em>,</em>

<em>a + b - c - d \\  = 14 + 29 - 1 - 1 \\  = 43 - 1 - 1 \\  =42 - 1 \\  = 41</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

7 0
2 years ago
Read 2 more answers
Pls help will give brainliest
lana [24]

Answer: The answer is B

Step-by-step explanation: 122 >7 (z+8) -5 (6+z). Then switch them, 7 (z+8) -5 (6+z) <122. Expanded:  7 (z+8) -5 (6+z) <122:v 2z+26

2z+26<122, subtract 26 from both sides: 2z+26-26<122-26

Simplify: 2z<96, divide both sides by 2: 2z over 2 < 96 over 2

and finally simplified: Z<48

HOPE THIS HELPED YOU OUT!

IF NOT SORRY!

6 0
2 years ago
Andrea was watching her brother in the ocean and noticed that the waves were coming into the beach at a frequency of 0.367347 Hz
anygoal [31]

Answer:

<u>18 waves</u> hit the beach in 49 s.

Step-by-step explanation:

Given:

The frequency of the waves that were coming into the beach is 0.367347 Hz.

Now, to find the number of waves that hit the beach in 49 s.

Let the number of waves be n.

The frequency of waves (f) = 0.367347 Hz.

The time it takes to hit the beach (t) = 49 s.

Now, we put formula to get the number of waves:

f=\frac{n}{t} \\\\0.367347=\frac{n}{49} \\\\Multiplying\ both\ sides\ by\ 49\ we\ get:\\\\18.000003=n\\\\n=18.000003.

<u><em>The number of waves = 18.</em></u>

Therefore, 18 waves hit the beach in 49 s.

8 0
3 years ago
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