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ANEK [815]
2 years ago
7

Please help me get the answer i’ll give you a thanks and 10 points pls

Mathematics
2 answers:
vitfil [10]2 years ago
7 0
586 cm squared i believe
myrzilka [38]2 years ago
3 0

Answer:

<u>678.4 cm^2</u>

Step-by-step explanation:

total surface area of prism is equal to ph+2B where <em>p</em> represents the perimeter of the base, <em>h</em> the height of the prism and <em>B</em> the area of the base.

Firstly, we calculate the <u>perimeter of the base. </u><u>This is equal to 10 + 14 + 10 + 14, or 48.</u>

Secondly, we must calculate the <u>height of the prism, </u><u>which is shown as 8.3.</u>

Lastly, we must calculate the <u>area of the base, </u><u>which is 10 * 14, or 140.</u>

We can now substitute these values into the formula, ph + 2B to find the total surface area of the prism:

ph + 2B,

(48)(8.3) + 2(140),

398.4 + 280,

678.4

<em><u>This means that the total surface area of this prism is 678.4 cm^2</u></em>

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Someone help I just got new assignments 23,24,25,26,27,28,29, and 30​
SSSSS [86.1K]

Answer:

23: y = -0.4

24: b = -1.8

25: m = 1/2

26: g = 1/4

27: s = 3/2

28: w = -12/5

29: z = 5/4

30: a = -9/5

Step-by-step explanation:

23:

  • 3y + 5.2 = -5y + 2
  • 3y+5.2+5y=-5y+2+5y
  • 8y + 5.2 = 2
  • 8y+5.2-5.2=2-5.2
  • 8y = -3.2
  • \frac{8y}{8} = \frac{-3.2}{8}
  • y = -0.4

24:

  • 10b-2=7b-7.4
  • 10b-2-7b=7b-7.4-7b
  • 3b - 2 = -7.4
  • 3b -2 + 2 = -7.4 + 2
  • 3b = -5.4
  • \frac{3b}{3} = \frac{-5.4}{3}
  • b = -1.8

25:

  • 2m - 2 = 6m - 4
  • 2m-2-6m=6m-4-6m
  • -4m-2=-4
  • -4m-2+2=-4+2
  • -4m = -2
  • \frac{-4m}{-4} = \frac{-2}{-4}
  • m = \frac{1}{2}

26:  

  • 3g+5=7g+4
  • 3g+5-7g=7g+4-7g
  • -4g+5=4
  • -4g + 5 - 5 = 4-5
  • -4g = -1
  • \frac{-4g}{-4} = \frac{-1}{-4}
  • g = \frac{1}{4}

27:

  • 4s-1=-2s+8
  • 4s-1+2s=-2s+8+2s
  • 6s - 1 = 8
  • 6s - 1 + 1 = 8+1
  • 6s = 9
  • \frac{6s}{6} = \frac{9}{6}
  • s = \frac{3}{2}

28:

  • 9w+3=4w-9
  • 9w+3-4w=4w-9-4w
  • 5w + 3=-9
  • 5w + 3 - 3 = -9-3
  • 5w = -12
  • \frac{5w}{5} = \frac{-12}{5}
  • w = \frac{-12}{5}

29:

  • 6z-7=2z-2
  • 6z-7-2z=2z-2-2z
  • 4z -7 = -2
  • 4z-7+7=-2+7
  • 4z = 5
  • \frac{4z}{4} = \frac{5}{4}
  • z = \frac{5}{4}

30:

  • -a+3=4a+12
  • -a+3-4a=4a+12-4a
  • -5a+3=12
  • -5a + 3 - 3 = 12-3
  • -5a = 9
  • \frac{-5a}{-5} = \frac{9}{-5}
  • a = -\frac{9}{5}
6 0
3 years ago
What is z2+z+4z3+4z2?
Sergeeva-Olga [200]
4z^3 + 5z^2 + z 
<span>Well that</span> would be it... <span>not</span> much can be done considering the exponents of the variable :)
7 0
3 years ago
Read 2 more answers
A model of a boat is 4 inches wide and 12 inches high. If the actual boat is 12 feet wide, what is the height?
lilavasa [31]
It is 20 feet high I believe. If it is wrong I am so sorry. 
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3 years ago
Beth said the distance to school is 2.8 km. The actual distance is 3.5 km. What is the percent error
Rom4ik [11]

Answer:

20%

Step-by-step explanation: The percent of error formula is |(theoretical value-actual value)/actual value|=percent of error. Substitute the values in. |(2.8-3.5)/3.5|=|(-0.7)/3.5|=0.2. The percent equal to 0.2 is 20%.

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3 years ago
These are pretty easy but can someone answer them for me so that i could go to sleep
weqwewe [10]

      Hey There!! (❁´◡`❁)

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        Hope It Helped!~

        Sorry, this take me too long to type...

<em>         Good Luck With Your Assignment!~ </em>

<em>         And, Tell me if some the answer are wrong... </em>

<h3>         UsedLess~</h3><h3><em>        (●ˇ∀ˇ●)</em></h3>

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