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Fofino [41]
2 years ago
11

A manatee surfaced for air 6 times in 240 seconds. How many seconds went by before the manatee surfaced the fourth time if it he

ld its breath for the same rate?
Mathematics
1 answer:
Norma-Jean [14]2 years ago
3 0
I think it is 160 seconds
You might be interested in
∠A and \angle B∠B are vertical angles. If m\angle A=(3x+3)^{\circ}∠A=(3x+3) ∘ and m\angle B=(4x-8)^{\circ}∠B=(4x−8) ∘ , then fin
TiliK225 [7]

Answer:

The value of x is 11 degrees

Step-by-step explanation:

Here, given that two angles are vertical angles, we are interested in calculating the value of x. We simply want to use an important property of vertical angles to get the value of x as given in the question.

When we talk of vertical angles, they are angles which lies on opposite side to each other when we have two intersecting line.

By property, vertically opposite angles are equal.

Thus, in this case, we are to equate the angles we are having since they are both vertical angles;

Thus,

Mathematically;

angle A = angle B

3x + 3 = 4x -8

Collect like terms;

4x-3x = 3 + 8

x = 11 degrees

7 0
3 years ago
a sequence has a first term of 2 and a constant ratio of _3/2 what are the first five terms of the sequence
soldi70 [24.7K]
This is a geometric sequence with a=2, r= -3/2.
Therefore,
a₁ = 2
a₂ = 2*(-3/2) = -3
a₃ = 2*(-3/2)² = 9/2 = 4.5
a₄ = 2(-3/2)³ = -27/4 = -6.75
a₅ = 2(-3/2)⁴ = 81/8 = 10.125

Answer:
In fractions, the first five terms are
     2, -3, 9/2, -27/4, 81/8
In decimals, the first five terms are
     2.000, -3.000, 4.500, -6.750, 10.125


5 0
3 years ago
Helpp ill mark u as brainlist​
bulgar [2K]
C is the only one that makes sense to me try and let me know
5 0
2 years ago
So who said i was not good at math???? me i did lol
marysya [2.9K]

Answer:

I got 10 grade on my 7th iready test

Step-by-step explanation:

Just try your best ;-;

5 0
2 years ago
Read 2 more answers
PLEASE HELP ME this is a 7th grade math test
konstantin123 [22]

Answer:

is there a picture or something

Step-by-step explanation:

or like some equation? Im in 7th grade too but i need a picture in order to help you So when u get a picture i edit my anwser and help you

3 0
2 years ago
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