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3 years ago

Someone please help! Im in a hurry !!

Mathematics

1 answer:

jeka943 years ago

8 0

Answer:

wouldnt it be c

Step-by-step explanation:

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Need Explanation For This Asap! <3<br> 528 cm2<br> 538 cm2 <br> 558 cm2

blsea [12.9K]

Answer:

528 cm²

Step-by-step explanation:

The surface area of this prism comprises:

2 congruent triangles (the bases of the prism)
2 congruent rectangles (rectangle 1 and 2) - since the triangle has 2 sides of equal length
1 rectangle (rectangle 3)

Area of a triangle = 1/2 × base × height

= 1/2 × 16 × 6

= 48 cm²

Area of rectangle 1 / 2 = width × length

= 10 × 12

= 120 cm²

Area of rectangle 3 = width × length

= 16 × 12

= 192 cm²

Total Surface Area = 2 triangles + 2 rectangles + rectangle 3

= (2 × 48) + (2 × 120) + 192

= 96 + 240 + 192

= 528 cm²

7 0

2 years ago

Read 2 more answers

Convert 578.12 cm to mm

Scorpion4ik [409]

Answer:

5781.2 millimeters

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

PLEASE HELP!!

erik [133]

$2.=c.\\\\2\sin4x\cos4x=2\sin(2\cdot4x)=2\sin8x\\\\Used:\\\sin2\alpha=2\sin\alpha\cos\alpha$

$1.=b.\\\\\csc x-\sin x=\dfrac{1}{\sin x}-\dfrac{\sin^2x}{\sin x}=\dfrac{1-\sin^2x}{\sin x}=\dfrac{\cos^2x}{\sin x}\\\\=\dfrac{\cos x\cos x}{\sin x}=\cos x\cdot\dfrac{\cos x}{\sin x}=\cos x\cot x\\\\Used:\\\csc x=\dfrac{1}{\sin x}\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\\\\\cot x=\dfrac{\cos x}{\sin x}$

$3.=a.\\\\\dfrac{\sin x-1}{\sin x+1}=\dfrac{\sin x-1}{\sin x+1}\cdot\dfrac{\sin x+1}{\sin x+1}=\dfrac{\sin^2x-1^2}{(\sin x+1)^2}=\dfrac{\sin^2x-1}{(\sin x+1)^2}\\\\=\dfrac{-(1-\sin^2x)}{(\sin x+1)^2}=\dfrac{-\cos^2x}{(\sin x+1)^2}\\\\Used:\\(a-b)(a+b)=a^2-b^2\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x$

8 0

3 years ago

What is 927 divided by 9 step by step

myrzilka [38]

Answer:

103

Step-by-step explanation:

$\frac{927}{9} = 103$