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RSB [31]
3 years ago
8

It is question 13 if you are wondering

Mathematics
1 answer:
NISA [10]3 years ago
6 0
Here is how you solve this:

1- convert 2 1/2 to 4 3/4. 2 1/2 = 2 2/4 + 4 3/4= 6 5/4, 5/4 = 1 1/4= 6+1+ 1/4= 7 1/4.

2-15 1/3 - 7 1/4 = 8 1/12, 8 1/12 / 2= 4 1/4 and 3 5/6 is the answer.

On the 3rd and 4th day 4 1/4 in & 3 5/6in snow fell.
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omeli [17]

Answer:

  50°

Step-by-step explanation:

As usual, the diagram is not drawn to scale.

The chord divides the circle into two arcs that have a sum of 360°. If we let "a" represent the measure of the smaller arc, then we have ...

  a + (a+160°) = 360°

  2a = 200° . . . . . . . . . . . subtract 160°

  a = 100°

The measure of the angle at A is 1/2 the measure of the subtended arc:

  acute ∠A = a/2 = (1/2)·100° = 50°

_____

<em>Comment on this geometry</em>

Consider a different inscribed angle, one with vertex V on the circle and subtending the same short arc subtended by chord AB. Then you know that the angle at V is half the measure of arc AB. This is still true as point V approaches (and becomes) point A on the circle. When V becomes A, segment VA becomes tangent line <em>l</em>, and you have the geometry shown here.

4 0
3 years ago
G two samples, one of size 14 and the second of size 13, are selected to test the difference between two population means. how m
vovikov84 [41]

Note :- If sample size n > 30 OR Population standard deviation σ is given then We use Z test.

If sample size n < 30 AND Population standard deviation σ is unknown then we use t test.

In this question we are not given Population standard deviations σ1 and σ2.

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Therefore we use t test.

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then Degrees of freedom = n1 + n2 - 2 = 14 + 13 - 2 = 25.

(kindly find the image attached with this solution)

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To get speed you do Distance/Time.
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Answer:

it is D

Step-by-step explanation:

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2 years ago
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Please help me I need help with answer
Rufina [12.5K]

Answer:

+30 + -25

Savings is positive

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Step-by-step explanation:

We save 30 dollars

+30

We buy a game for 25

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2 years ago
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