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kotykmax [81]
2 years ago
8

I got this wrong and I’m taking the test again please tell me which one is right

Mathematics
2 answers:
natita [175]2 years ago
7 0

Answer:

2q + 5

Step-by-step explanation:

Each question is worth 2 points and Q represents every question. You would only add the 5 because Katelyn gets  5 extra points when she answers only one question.

alex41 [277]2 years ago
3 0

Answer:

2q+5=s

Step-by-step explanation:

You wouldn't subtract the 5 extra credit, you would add it

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Find the volume and surface area of the prism below
Nata [24]

Answer:

a) The volume of the prism is 660 mm³

b) The surface area of the prism is 514 mm²

Step-by-step explanation:

The given prism for which we are to find the volume and the surface area shows the dimensions of the sides

a) To find the volume, we can consider the prism as a composite figure as follows;

The topmost cuboid with dimensions (15 - 2×3) mm, 3 mm, and 9 mm

Therefore, the volume of the topmost cuboid, V₁, is given as follows;

V₁ = 5 mm × 3 mm × 9 mm = 135 mm³

The volume of the cuboid on which the top cuboid rest, V₂, is given as follows;

V₂ = 15 mm × 5 mm × 7 mm = 525 mm³

The volume of the prism, V = V₁ + V₂

Therefore, we have;

V =135 mm³ + 525 mm³ = 660 mm³

The volume of the prism, V = 660 mm³

b) The surface area of the prism is given as follows;

The surface area of the top cuboid, SA₁, is given as follows;

SA₁ = 9 mm × 5 mm + 2 × 3 mm × 9 mm + 2 × 3 mm × 5 mm = 129 mm²

The surface area of the larger cuboid, SA₂, is given as follows;

SA₂ = 2 × 15 mm × 7 mm + 2 × 5 mm × 7 mm + 2 × 3 mm × 5 mm + 15 mm × 5 mm = 385 mm²

The surface area of the prism, SA = SA₁ + SA₂

∴ The surface area of the prism, SA = 129 mm² + 385 mm² = 514 mm²

4 0
3 years ago
One weekend, Paola started reading a book for school. She read 35 pages of the book on Saturday. On Sunday she read 15 pages an
Sidana [21]
35 + 15 x 4 = 60. Paola read 60 pages in total.
6 0
3 years ago
Evaluate ab – 0.55 when a<br> 1 and b = 5.
katrin [286]
1(5)-0.55=
5-0.55= 4.45
5 0
3 years ago
If one point is located at (-6, 2) and another point is
Luba_88 [7]

Answer:

it is the square root of 145

Step-by-step explanation:

use distance formula

7 0
2 years ago
16. In the figure below, vertices D and F of ADEF lie on
Hatshy [7]

Answer:

J. 108°

Step-by-step explanation:

m<EDF = 180 - 148 = 32° (angles on a straight)

m<EFD = 180 - 140 = 40°(Angles in a straight line)

m<DEF = 180 - (m<EDF + m<EFD) (sum of triangle)

m<DEF = 180 - (32 + 40)

m<DEF = 180 - 72

m<DEF = 108°

5 0
3 years ago
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