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3 years ago

Jenny is 34 she has a 18yr old son how old did she have her son?

Mathematics

2 answers:

alekssr [168]3 years ago

6 0

Answer:

16 years old.

Step-by-step explanation:

All you do is subtract 18 from 34

salantis [7]3 years ago

5 0

Answer: 16

Step-by-step explanation:

Subtract her age by her son’s age

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*One half of two fifths of x.

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Answer:

one half of two fifths of x would be equivalent to one fifth of x

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All the edges of a regular square pyramid have length 8 . What is the:

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Answer:

vol=BX1/3 h

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Step-by-step explanation:

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3 years ago

In ΔABC, the lengths of a, b, and c are 22.5 centimeters, 18 centimeters, and 13.6 centimeters, respectively.

Irina-Kira [14]

Given the values of the three sides of the triangle, we can apply the Cosine Law to find the angles of the triangle. Recall that for we can express the value of c through the equation below.

$c^{2} = a^{2} + b^{2} - 2abcosC$

Rearranging this equation, we can find the value ∠C as shown below.

$\cos C = \frac{a^{2}+b^{2}-c^{2}}{2ab}$
$C = cos^{-1} (\frac{a^{2}+b^{2}-c^{2}}{2ab})$

We can apply the same reasoning for finding the value of ∠B as shown.

$B = cos^{-1} (\frac{a^{2}+c^{2}-b^{2}}{2ac})$

Plugging in the values of the sides (see image attached) from the given. It will now be straightforward to compute for ∠B and ∠C.

$C = cos^{-1} (\frac{22.5^{2}+18^{2}-13.6^{2}}{2(22.5)(18)})$
$C \approx 37.19$

$B = cos^{-1} (\frac{22.5^{2}+13.6^{2}-18^{2}}{2(22.5)(13.6)})$
$B \approx 53.13$

Answer: ∠C = 37.19° and ∠B = 53.13°

7 0

3 years ago

Read 2 more answers

Jay took a number, n, and increased it by 25%. Then, he doubled the resulting product. Which of the following is equivalent to t

ruslelena [56]

Answer: Multiplying the number by 2.5

Step-by-step explanation:

Jay took a number, n, and increased it by 25%. The value gotten will be:

= n + (25% × n)

= n + (0.25 × n)

= n + 0.25n

= 1.25n

After that, Then, he doubled the resulting product. The value now gotten will be:

= 2 × 1.25n

= 2.50n

Therefore, the equivalent will be multiplying the number by 2.5. This will be:

= n × 2.5

= 2.5n

Therefore, it's thesame with the value gotten.

The correct option is D.

5 0

3 years ago

What is required for two triangles to be similar?

andrey2020 [161]

To make this simple

If two pairs corresponding angles in a pair of triangles are congruent then the triangles are similar

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3 years ago