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Inga [223]
2 years ago
13

Plz, Help I'll give brainlist to whoever answers all questions!

Mathematics
2 answers:
Tatiana [17]2 years ago
7 0

Answer:

Step-by-step explanation:

1. Area => 7.5 x 2 = 15 m² (Choice B)

2. Area => 5 x 11 = 55 in² (Choice B)

3. Area = (12 x 18) * 0.5 = 108 cm² (Choice A)

4. Triangular Pyramid (Choice D)

6. Area of Rectangle => 12 x 9 = 108

   Area of Triangle => 7x6 = 42

   Sum of Area => 150

7.  Surface Area => (4x4)x6 = 96 in² (Choice D)

8. Volume = 3x15x14 = 630 in³ (Choice D)

GarryVolchara [31]2 years ago
5 0
1.B
2.B
3.A
4.D
5.150
6.D
7. D
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Phoenix [80]
I´d say "d" is the distance from the eye to the wall. 
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B+alfa=45°
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THEN:
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alfa,B and "d"

3 0
3 years ago
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JulijaS [17]
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3 years ago
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3 years ago
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maksim [4K]

Answer:

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3 years ago
What is the difference of polynomials (8r6s3-9r5s4+3r4s5)-(2r4s-5r6-4r5s4)
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If you would like to solve <span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4), you can do this using the following steps:

</span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4) = 8r^6s^3 – 9r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6 + 4r^5s^4 = 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6
</span>
The correct result would be 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6.</span>
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