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3 years ago

Need help fast in an emergency.

Mathematics

2 answers:

Nonamiya [84]3 years ago

5 0

Answer:

i would say c

Step-by-step explanation:

Harlamova29_29 [7]3 years ago

3 0

Answer:

C. III and IV only

Step-by-step explanation:

The angles measures remain the same. The lengths of the sides are in the same ratio.

Answer is

C. III and IV only

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Which proportion can you use to find the value of a?

Ugo [173]

Given:

The given triangle is a similar triangle.

The length of the hypotenuse is 18 units.

The length of the leg is a.

The length of the part of the hypotenuse is 16 units.

We need to determine the proportion used to find the value of a.

Proportion to find the value of a:

We shall find the proportion to determine the value of a using the geometric mean leg rule.

Applying the leg rule, we have;

$\frac{\text { hypotenuse }}{\text { leg }}=\frac{\text { leg }}{\text { part }}$

Substituting the values of hypotenuse, leg and part, we get;

$\frac{18}{a}=\frac{a}{16}$

Thus, the proportion used to find the value of a is $\frac{18}{a}=\frac{a}{16}$

Hence, Option D is the correct answer.

6 0

3 years ago

What is f–1(8)?? Please select the best answer

notka56 [123]

Answer:

$f^{-1}(8)=\frac{3}{2}$

Step-by-step explanation:

Given f(x)= $2x+5$

We have to find $f^{-1}(8)$

In order to find $f^{-1}(x)$ we have to make x as the subject of the formula

Let us assume f(x)=y

⇒ $2x+5=y$

Subtracting both sides by 5

$2x+5-5=y-5$

$2x=y-5$

Dividing both sides by 2

$\frac{2x}{2}=\frac{y-5}{2}$

⇒ $x=\frac{y-5}{2}$

Now substituting y with x

we have $f^{-1}(x)=\frac{x-5}{2}$

Now $f^{-1}(8)=\frac{8-5}{2}$

= $\frac{3}{2}$

So option (ii) is correct

5 0

3 years ago

Read 2 more answers

What is the negative reciprocal of 3/5

SSSSS [86.1K]

Answer:

-5/3

Step-by-step explanation:

To find the negative reciprocal

-1 /( number)

-1 ( 3/5)

-1 ÷ (3/5)

Copy dot flip

-1 * 5/3

-5/3

The negative reciprocal is -5/3

3 0

3 years ago

Read 2 more answers

The fan cost index represents the cost of four average price tickets, refreshments, and souvenirs to a sporting event. The FCI f

scoundrel [369]

FCI for hockey is- 49.39 and for tennis would be 65.71

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3 years ago

The sum of two numbers is 44. The second number is 4 less than three times the first number. Let x represent the first number an

xeze [42]

Answer:

O4 = 3-4x

Step-by-step explanation:

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3 years ago