All categories

4 years ago

What is the length of AD?

Mathematics

1 answer:

Setler [38]4 years ago

7 0

We find the length of AD using the similarity of right triangle property. See image attached.

AD² = BD × CD
AD² = 9 × 36
AD² = 324
AD² = 18²
AD = 18

The length of AD is 18 units

You might be interested in

Plzz help me I am mad at math

Rama09 [41]

the answer is 6.5

Step-by-step explanation:

since c is greater than 5 and the only number greater than 5 is 6.5. it is the correct answer.

as for the number line it should start from point 5 , the arrow showing towards the greater end.

hope you understand. good luck!

5 0

3 years ago

Please help me with this please and thank you

sattari [20]

Answer:

b. $3^{-x}$

Step-by-step explanation:

(-2, 9)

$f(-2)=3^{-(-2)} =3^{2} =9$

(-1, 3)

$f(-1)=3^{-(-1)} =3^{1} =3$

(0 1)

$f(0)=3^{0} =1$

Hope this helps

6 0

3 years ago

Hi good morning can you please help me Write two polynomials whose difference is 6x+3

vaieri [72.5K]

Answer:

9x+8 and 3x+5.

Explanation:

Let the first polynomial = 9x + 8

Let the second polynomial be a+b

$\begin{gathered} 9x-a=6x \\ a=9x-6x \\ a=3x \end{gathered}$

Similarly:

$\begin{gathered} 8-b=3 \\ b=8-3 \\ b=5 \end{gathered}$

Thus, the second polynomial = 3x+5

Therefore, the two polynomials whose difference is 6x+3 are 9x+8 and 3x+5.

7 0

1 year ago

Question is in the image

nekit [7.7K]

Answer:

The answer is:

$f(x)=2x^{2}-8x+6$

Step-by-step explanation:

The equation of a parabola in the intercept form is given by:

$y=a(x-p)(x-q)$

Where:

p and q are x-intercepts

Now, we know the parabola intercepts at x=1 and x=3.

So we will have:

$y=a(x-1)(x-3)$

Using the point (-1,16) we could find the value of a.

$16=a(-1-1)(-1-3)$

$16=a(-2)(-4)$

$16=8a$

$a=2$

Therefore, the equation is:

$y=2(x-1)(x-3)$

$y=2(x^{2}-4x+3)$

$y=2x^{2}-8x+6$

<u>The answer is: </u>

$f(x)=2x^{2}-8x+6$

I hope it helps you!

4 0

3 years ago

How do you describe the expression -9-5x

Ksju [112]

-9 - 5x in word form would be:

Negative nine minus five x

Hope this helps you

-AaronWiseIsBae

6 0

3 years ago

Read 2 more answers