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JulsSmile [24]
3 years ago
10

What is the number line of 2.5 + 4.5?

Mathematics
2 answers:
Ksivusya [100]3 years ago
4 0

Answer: A

Step-by-step explanation: Graph A shows that the small arrow is going up from 2.5 and adding 4.5 from it which equals 7. It ends at 7. The other graphs don’t represent the information given!

Harrizon [31]3 years ago
3 0

Answer:

A

Step-by-step explanation:

It shows 2.5 and then it adds 4.5 to it

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What is 5% of 240? Please help
sergejj [24]

Answer:

12

Step-by-step explanation:

P = (x% * y)

P = (5% * 240)

p = 5/100 = 0.05

P = (0.05 * 240)

P = 12

5 0
2 years ago
Read 2 more answers
Michael estimated his mass as 8 kilograms. Is his estimate reasonable? Justify your answer.
Gennadij [26K]

Answer:  The answer is Yes.


Step-by-step explanation:  Given that Michael estimated his mass and found it to be 8 kilograms. It may sound awkward to us, but its true. Because when we measure our weight by the weight machine it gives us the product of our actual mass and the acceleration due to gravity.

From second law of motion, we have

Weight = mass × acceleration due to gravity.

That is, W = m × 9.8 m/sec².

The unit of mass is kilogram and 1 kg m/sec² = 1 Newton. Therefore, the unit of the weight we generally measure is Newton (N), not kilogram. Here is what we make mistake usually.

Thus, if Michael' mass is 8 kg, then his weight will be

W = 8 × 9.8 kg m/sec² = 78.4 N, which is normal weight of a person.

Thus, his estimation is perfectly OK.


8 0
3 years ago
PLS HELP ME WITH THIS!!!!!! HOW DID THEY GET 80ft^2
noname [10]

\huge \boxed{\mathfrak{Question} \downarrow}

  • Determine the surface area of the right square pyramid.

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

The formula for finding the surface area of a right square pyramid is ⇨ b² + 2bl, where

  • b = base of the right square pyramid
  • l = slant height of the right square pyramid.

In the given figure,

  • base (b) = 4 ft.
  • slant height (l) = 8 ft.

Now, let's substitute the values of b & l in the formula & solve it :-

\sf \: {b}^{2}  + 2bl \\  =   \sf \: {4}^{2}  + 2 \times 4 \times 8 \\  =  \sf \: 16 + 8 \times 8 \\  =  \sf \: 16 + 64 \\  =  \huge\boxed{\boxed{ \bf 80 \: ft ^{2} }}

So, the surface area of the right square pyramid is <u>8</u><u>0</u><u> </u><u>ft²</u><u>.</u>

7 0
3 years ago
I will mark brainliest!!!!
nata0808 [166]

Answer:

24 ft^2

Step-by-step explanation:

The small aquarium:

1 * 3 * 2 = 6 ft^2

The large aquarium

(1 + 1) * (3 + 2) * (2 + 1)

2 * 5 * 3 = 30 ft^2

Difference between the larger aquarium and the smaller aquarium:

30 - 6, or 24.

This means that the answer to this question is a, 24 ft^2

5 0
2 years ago
Alvaro is interested in the relationship between weather conditions and whether the downtown train runs on time. For a year, he
sladkih [1.3K]

Answer:

I got B :)))

Step-by-step explanation:

8 0
3 years ago
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