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9966 [12]
3 years ago
14

Sorry but what is “ 6(-5n + 7) “ equal ?

Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0

Answer:

-30n+42

Step-by-step explanation:

6(−5n+7)

=(6)(−5n+7)

=(6)(−5n)+(6)(7)

=−30n+42

JulijaS [17]3 years ago
5 0

Answer: − 30 n + 42

Step-by-step explanation:

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A swimming pool has a length of 12 feet, a width of 8 feet, and a depth of 9 feet. What is the volume of the pool in cubic feet?
Umnica [9.8K]

Answer:

V=864 cubic feet

Step-by-step explanation:

Volume of a rectangular prism is Length x width x depth

So V=12x8x9

V=864 Cubic feet

6 0
2 years ago
I need help with this questions, please help ill mark brainliest..
Natasha_Volkova [10]

Answer:

Options (1), (3) and (5)

Step-by-step explanation:

Equation that represents the relationship between the three sides of a triangle is,

a² + b² = c²

Where c = longest side of the triangle

If the length of the given sides satisfy the equation, triangle formed by the sides will be a right triangle.

Option A.

27 in, 36 in, 45 in

(45)² = (27)² + (36)²

2025 = 729 + 1296

2025 = 2025

True.

Option 2.

18 in, 22 in, 28 in

(28)² = (18)² + (22)²

784 = 324 + 484

784 = 808

False.

Option 3

10 in, 24 in, 26 in

(26)² = (10)² + (24)²

676 = 100 + 576

676 = 676

True.

Option 4

20 in, 21 in, 31 in

(31)² = (20)² + (21)²

961 = 400 + 441

961 = 841

False.

Option 5

28 in, 45 in, 53 in

(53)² = (28)² + (45)²

2809 = 784 + 2025

2809 = 2809

True.

Therefore, Options (1), (3) and (5) will be the correct options.

6 0
3 years ago
Bob bought a boat for $20.00 and sold it at a loss of $8.00. What was the selling price?
qwelly [4]

he sold it for $12.00

7 0
3 years ago
Graph the linear function r(x)=2
wlad13 [49]

It's a linear function with a slope 0.

It's a horizontal line (look at the picture).

4 0
3 years ago
A gallon of paint can cover 400 square feet. To the nearest half gallon, find how much paint will be needed to paint two coats o
nlexa [21]
I think that this is right, but I assumed that the ceiling has the same dimensions as the wall you would need 4 gallons for 2 coats.
Work:
20x8= 160 (square feet for 1 wall)
160x5=800 (i assumed there are 4 walls and 1 ceiling)
800x2=1600 (you need 2 coats)
1600/400=4 (each gallon includes 400 square feet)
3 0
3 years ago
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