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Lelu [443]
3 years ago
6

I’m confused on this one

Mathematics
2 answers:
saul85 [17]3 years ago
8 0

∠1, ∠2, and ∠3 add up to one full turn, or 360°. We can write this fact as the equation

∠1 + ∠2 + ∠3 = 360

∠1 is given to us as a right angle - 90° - and the values ∠2 and ∠3 are given in the question, so we can rewrite our equation with that information as

90 + (x - 7) + 2x = 360

Which we can then solve for x:

x - 7 + 2x = 270 (subtract 90 from both sides)

3x - 7 = 270 (combine like terms)

3x = 277 (add 7 to both sides)

x = 277/3 = 92 1/3 (divide both sides by 3)

Since ∠3 = 2x, we can multiply our result by 2 to find that ∠3 = 2 x (92 1/3) = 184 2/3°

hjlf3 years ago
6 0

All central angles of a circle add to 360 deg.

m<1 = 90 since <1 is a right angle.

m<1 + m<2 + m<3 = 360

90 + x - 7 + 2x = 360

3x + 83 = 360

3x = 277

x = 277/3

m<3 = 2x = 277/3 * 2 = 554/3 = 184 2/3

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Target sells 24 bottles of water for $3, and 36 bottles of water for $4. Which is the better buy and by how much?
madam [21]
First, we need to find the cost per bottle for both offers:

3 / 24 = 0.125$
4 / 36 = 0.11$

(Note: I divided 3 by 24 bc we are spreading the 3 dollars over 24 bottles. If I wanted to find the number of bottles per bottle, I would divide 24 by 3.)

The cheaper per bottle offer is 36 bottles for 4$. The only option for this is D. We can calculate the difference by subtracting 0.11 from 0.125, which is 0.014$ or 1.4¢. Hope that helps!
4 0
3 years ago
When the results of experimentation or historical data are used to assign probability values, the method used to assign probabil
wel

Answer:

Relative Frequency Method

Step-by-step explanation:

If I carry out an experiment involving 25 throws of a coin and I obtain 13 Heads(H), the Relative Frequency of obtaining Heads will be 13/25.

Now if I intend to find out approximately how many Heads will

occur in 300 throws, I simply use the result or experimentation data that I have.

This is done below:

Relative Frequency of Obtaining a Head= 13/25 =0.52

Number of Heads obtained in 300 throws

= Relative Frequency X Number of Trials

=0.52 X 300

=156

This is an example of how relative frequency method works.

5 0
3 years ago
Use associative property of addition to find the total of 1, 10, and 18 in two different ways
allochka39001 [22]
1 + 10 + 18 = (1 + 10) + 18

1 + 10 + 18 = 11 + 18 

1 + 10 + 18 =  29

OR

1 + 10 + 18 =  1 + (10 + 18)

1 + 10 + 18 = 1 + 28

1 + 10 + 18 = 29
6 0
3 years ago
How is everyone's day
weqwewe [10]

Answer:

Mine's going good. Just doing school at home and playing volleyball

8 0
2 years ago
Need Help Please I'm Out Of Time ;(
vodka [1.7K]

Answer:

Total surface area = 184.86 cm²

Step-by-step explanation:

If we see the the diagram, we can find that the net of this triangular prism includes:

2 triangles each with the dimension of one side 4.3cm, second side 5.2cm and third side 6.75 cm

3 rectangles each with the dimensions of (6.75×10)cm, (5.2×10)cm and (4.3×10)cm

Surface area of triangle with a,b and c side:

s=(a+b+c)/2

Area= √s(s−a)(s−b)(s−c)

Area = 11.18cm²

For 2 triangle:

Area = 22.36cm²

Surface Area of Rectangles:

Area = (6.75×10)cm + (5.2×10)cm + (4.3×10)cm

Area = 162.5 cm²

Total surface area = area of 2 triangle + area of 3 rectangles:

Total surface area = 22.36 + 162.5

Total surface area = 184.86 cm²

8 0
3 years ago
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