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Romashka-Z-Leto [24]
3 years ago
10

O. Math and Science A science class

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:the mass of the air inside the inflated balloon is 4 grams

Step-by-step explanation:

The initial mass of the balloon before it was inflated by the Math and Science class is 4 grams. After the balloon was inflated, the mass was 8 grams. This means that the mass by which the balloon increased would be the mass of the inflated balloon - the initial mass of the balloon. It becomes

8 - 4 = 4 grams.

Therefore, the mass of the air inside the inflated balloon is 4 grams.

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What are the measures of angles 1 and 2?
irinina [24]

In this question we have to use the formula:

Angle \ formed \ by  \ two \ chords = \frac{1}{2}(Sum \ of \ intercepted \ arcs)

Substituting the values of the intercepted arcs in the formula, we will get

\angle 1 = \frac{1}{2} (53 + 47) = \frac{1}{2} (100) = 50 degree

And angles 1 and 2 are linear pair.

So we will get

\angle 1 + \angle 2 = 180

Substituting the value of angle 1, we will get

50 + \angle 2 = 180 \\ \angle 2 = 130 degree

7 0
3 years ago
Read 2 more answers
Find four consecutive even integers such that seven times the first exceeds their sum by 18.
Ganezh [65]

Answer:

10, 12, 14, 16

Step-by-step explanation:

Given: Four consecutive even integers such that seven times the first exceeds their sum by 18.

Lets assume the first number be "x".

As it is even integers

∴ Second consecutive number will be (x+2)

  Third consecutive number will be (x+4)

  Fourth consecutive number will be (x+6)

Now, as given seven times the first exceeds their sum by 18.

∴ [x+(x+2)+(x+4)+(x+6)]+18 = 7x

solving the equation to find the number.

⇒ [x+(x+2)+(x+4)+(x+6)]+18 = 7x

Opening parenthesis

x+x+2+x+4+x+6+18 = 7x

⇒ 4x+30= 7x

subtracting both side by 4x

⇒ 30= 3x

Dividing both side by 3

∴ x= 10.

Hence, subtituting the value x to find four consecutive even integers.

  First number is 10

  Second consecutive number will be (10+2) = 12

  Third consecutive number will be (10+4)= 14

  Fourth consecutive number will be (10+6) = 16

∴ Four consecutive even integers are 10,12,14,16.

8 0
3 years ago
Assuming the standard definitions of addition and scalar multiplication, decide whether or not the following sets are vector spa
nadezda [96]

Answer:

See attached pictures.

Step-by-step explanation:

See attached pictures.

4 0
3 years ago
Evaluate f(x)=-2×+5 for f(-5)​
Sliva [168]
  • Answer:

<em>f(-5) = 15 (A)</em>

  • Step-by-step explanation:

<em>f(x) = - 2x + 5</em>

<em>replace x = - 5</em>

<em>f(-5) = -2(-5) + 5 </em>

<em>(-)(-) = + </em>

<em>f(-5) = 10 + 5 </em>

<em>f(-5) = 15 (A)</em>

4 0
4 years ago
Read 2 more answers
673 grams round to nearest 10 grams
natima [27]
673 grams is closer to 670 than 680. 
so 673 is rounded to 670 grams.
8 0
3 years ago
Read 2 more answers
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