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Veronika [31]
3 years ago
7

What is 2/5 of 25?? Need helpppppppp

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0
10
Workings out
(2/5)*25=10
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What is the value of x
kozerog [31]

Answer:


Step-by-step explanation:

If the upper triangle has a right angle at Island C, we need only use the Pythagorean Theorem to find x:

(10 mi)^2 + (20 mi)^2 = x^2, so that

x^2 = 100 mi^2 + 400 mi^2 = 500 mi^2, which reduces to

x = +10√5 mi

Note that the shortest side (10 mi) is adjacent to a 30 degree angle.  Thus, the upper triangle is a 30-60-90 triangle, meaning that the Pythagorean Theorem DOES apply here.

Next time, please incude ALL of the verbal instructions.  Thank you.

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3 years ago
25 POINTS!!!!!!!!!!<br> Evaluate log7 343.<br><br> A. 49<br> B. 3<br> C. −3<br> D. −49
BlackZzzverrR [31]
<span>The answer to this problem is 3.      3^7 is equal to 343.</span>
5 0
3 years ago
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I could really use some help with this!!!
Juliette [100K]
With what do you need help with??
8 0
3 years ago
Which points are the approximate locations of the foci of the ellipse? Round to the nearest tenth. (−2.2, 4) and (8.2, 4) (−0.8,
Studentka2010 [4]

The graph is attached.

Answer:

(-2.2, 4) and (8.2, 4)

Step-by-step explanation:

In an ellipse, there is a minor radius and a major radius.

Let major radius be = a

Let minor radius be= b

From the graph, we are given:

Major radius, a = 6

Minor radius, b = 3

Now, let's find the distance from the center to the focus using the formula:

\sqrt{a^2 - b^2}

Substituting values, we have:

= \sqrt{6^2 - 3^2}

= \sqrt{36 - 9}

= \sqrt{27} = 5.916

≈ 5.2

We can see from the graph that center coordinate is (3, 4). Therefore, the approximate locations of the foci of the ellipse would be:

(3-5.2, 4) and (3+5.2, 4)

= (-2.2, 4) and (8.2, 4)

3 0
3 years ago
In the diagram find the area of DEF
Agata [3.3K]

Answer:

Im sorry Im not sure

Step-by-step explanation:

4 0
3 years ago
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