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aleksklad [387]

2 years ago

10

Please help idk how to find the surface area of this triangular prism

2 answers:

Olin [163]2 years ago

7 0

1/2 bxh - b = base h = height

so 8cm (height) × 26cm (base) × 12cm (also base) = something something × 1/2 = answer...or ÷ 1/2 I forgot but its something like that I think. bruh just ask whoever's in the house lol

ra1l [238]2 years ago

5 0

Answer:

you have to find the area of the rectangle at the bottom and then find the area of the 2 long triangles and the 2 small triangles and add them together

Step-by-step explanation:

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What is the standard form of 5.93-5

vredina [299]

Just subtract the whole numbers, 5.93-5 = 0.93.

4 0

3 years ago

2. Find the fraction which is exactly halfway between 1/7 and 4/7

Ksivusya [100]

Answer:

That would be the fraction exactly between 2/7 and 3/7

which would be 2.5 / 7 or 5 / 14

Step-by-step explanation:

4 0

3 years ago

Find the total surface area of the triangular prism

GuDViN [60]

Answer:

$1,008\:\mathrm{cm^2}$

Step-by-step explanation:

The total surface area of this triangular prism consists of three rectangles and two triangles. Adding the areas of each of these shapes allows us to find the total surface area of this 3D figure:

Area of both triangles:

$2\cdot \frac{1}{2}\cdot12\cdot 14=168\:\mathrm{cm^2}$

Area of all three rectangles:

$15\cdot 20 +13\cdot 20+14\cdot 20=840\:\mathrm{cm^2}$

Therefore, the total surface area of this figure is:

$840+160=\fbox{$1,008\:\mathrm{cm^2}$} \: \checkmark$

3 0

2 years ago

PLEASE HELP ME FAST!!14 MINUTES LEFT

Irina18 [472]

Answer:

The answer to your question is: B and D are correct

Step-by-step explanation:

Remember that the sum of the internal angles in a triangle equals 180°.

The sum of supplementary angles equals 180°

Then

(6x + 1) + (4x + 5) + [180 - (8x + 30)] = 180

6x + 1 + 4x + 5 + [180 - 8x - 30] = 180

10x + 6 + 150 - 8x = 180

2 x = 180 - 156

2x = 24

x = 24/2

x = 12

∠JKL = 4(12) + 5 = 48 + 5 = 53

∠KJL = 6(12) + 1 = 72 + 1 = 73

∠KLJ = 180 - 73 - 53 = 54

∠KLM = 126

7 0

2 years ago

Please someone answer this please

gladu [14]

Option C:

$\frac{3 a^{2} b^{11}}{2 }$ is equivalent to the given expression.

Solution:

Given expression:

$$\frac{-18 a^{-2} b^{5}}{-12 a^{-4} b^{-6}}$

To find which expression is equivalent to the given expression.

$$\frac{-18 a^{-2} b^{5}}{-12 a^{-4} b^{-6}}$

Using exponent rule: $\frac{1}{a^m}=a^{-m}, \ \ \frac{1}{a^{-m}}=a^{m}$

$$=\frac{-18 a^{-2} b^{5}a^{4} b^{6}}{-12 }$

$$=\frac{-18 a^{-2} a^{4} b^{5} b^{6}}{-12 }$

Using exponent rule: ${a^m}\cdot{a^n}=a^{m+n}$

$$=\frac{-18 a^{(-2+4)} b^{(5+6)}}{-12 }$

$$=\frac{-18 a^{2} b^{11}}{-12 }$

Divide both numerator and denominator by the common factor –6.

$$=\frac{3 a^{2} b^{11}}{2 }$

$$\frac{-18 a^{-2} b^{5}}{-12 a^{-4} b^{-6}}=\frac{3 a^{2} b^{11}}{2 }$

Therefore, $\frac{3 a^{2} b^{11}}{2 }$ is equivalent to the given expression.

Hence Option C is the correct answer.

8 0

3 years ago