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Aleksandr [31]
3 years ago
15

Question 5 of 8 -

Mathematics
1 answer:
Ilya [14]3 years ago
7 0

Answer:

8 x 2.48 = 19.84

Step-by-step explanation:

We need to find the product for the expression 8 x 2.48.

First no is 8 and second no is 2.48

Product means to multiply.

We can write 2.48 as \dfrac{248}{100}

i.e.

8\times \dfrac{248}{100}\\\\=\dfrac{1984}{100}

Now, apply decimal after 9. So,

8 x 2.48 = 19.84

Hence, the correct option is (b).

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Hello there!

So there are two separate problems: 9 * (11-4) and 3 * (11-4). To find the value for each expression, use order of operations. We'll solve what's in the parenthesis before multiplying that value by the other number. 11-4 is 7. 7 * 9 is 63. 11-4 is 7. 7 * 3 is 21. You can divide 63 by 21 to get 3. This means that 9 * (11 - 4) is three times as much as 3 *(11 - 4). Even just by looking at the problem, the expression in the parenthesis is the same thing, but the front numbers are different. 9 is three times as much as 3.  The answer is A.

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Given: KAL=100, L=25, and OA=21. Find: AK,AL, and KL
Mamont248 [21]

The measure of AK, AL and KL are 19.66, 10.14 and 23.64 respectively

<h3>Circle Geometry</h3>

Given the following parameters

KAL=100, L=25, and OA=21.

Dtermine the measure of m∠AKL

m∠AKL = 180° - 100° - 25° = 55°

m∠AKL = 55 degrees

Since the line KL is a chord, hence the triangle in the circle is isosceles with AO = LO = 12

Given that ∠AOL is a central angle. ∠AKL is an inscribed angle, intersecting the same ark of the circle.

m∠AOL = 2(m∠AKL) = 2 * 55° = 110°

Using the Law of Cosines to determine the value of AL

AL = √(122 + 122 - 2•122•cos(110°) ≅ 19.659649

AL  = 19. 66

Similarly for AK

AK = √(122 + 122 - 2•122•cos(50°)

AK ≅ 10.14

We will find the length of LK from ΔLAK.

LK = √(AL2 + AK2 - 2•AL•AK•cos(100°)

LK ≅ 23.64

Hence the measure of AK, AL and KL are 19.66, 10.14 and 23.64 respectively

Learn more on law of cosines here:brainly.com/question/7872492

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