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AlekseyPX
4 years ago
14

What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?

Mathematics
1 answer:
Triss [41]4 years ago
7 0

Answer:

C.21

Step-by-step explanation:

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Ben made a model (shown below) of the square pyramid he plans to build when he grows up. Find the surface area of the model.
belka [17]

Answer:

The answer is "240 \ m^2"

Step-by-step explanation:

please find the given diagram image file in the attachment.

In this question, the surface area model includes two things that are square pyramid is equal to the area of the square base and the area of the flour lateral triangle:

SA= 10\times 10 +4 (\frac{1}{2}\times (10) \times (7))\\\\

     = 100 +4 (\frac{1}{2} \times 70)\\\\= 100 +4 (35)\\\\= 100 +140\\\\=240 \m^2\\\\

The surface area of the model is 240 \ m^2.

4 0
3 years ago
A total of 1,000 BTUs are needed to cool a space. If 2.5 BTUs are needed to cool 1 cubic foot of space, what is the maximum volu
padilas [110]

Answer:

  400 ft³

Step-by-step explanation:

Dimensional analysis can help you figure this out.

  (1000 BTU)/(2.5 BTU/ft³) = (1000/2.5) ft³ = 400 ft³

1000 BTU can cool up to 400 cubic feet of space.

4 0
3 years ago
WILL MARK YOU BRAINLIEST PLSS HELP
matrenka [14]
H(-2) = 2(-2)^2 - 3(-2)
= 2(4) - (-6)
= 8 + 6
= 14
4 0
4 years ago
Explain and compare sequences that have first differences, second differences, and third differences and the type of relationshi
DedPeter [7]

Answer:

Please find the answer in the explanation

Step-by-step explanation:

Explain and compare sequences that have first differences, second differences, and third differences and the type of relationship they satisfy

When a sequence has first difference, that mean it has the same difference between the number through out. Such a sequence is Linear. Examples of such are :

1, 3, 5, 7, 9, ........

2, 5, 8, 11, ...........

When a sequence has second difference, that mean it does not have the same difference between the number through out. It has the same sequence at the second order.

Such a sequence is quadratic. Example of such is :

1, 3, 6, 10, 15, .........

When a sequence has third difference, that means it does not have the same difference between the number through out in the first and second order but in the third order. Such a sequence is exponential. Example of such is :

1, 2, 5, 10, 17, .........

3 0
3 years ago
The pH scale measures how acidic or basic a substance is. Lemon juice is said to have a pH of less than 4 and greater than 1.5.
Vera_Pavlovna [14]

Answer:

1.5<x<4 i hope this is right sorry if its not

Step-by-step explanation:

8 0
3 years ago
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