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morpeh [17]
3 years ago
8

How would you find AC and DC

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
Because you know that segments AD and DC are congruent, that means that DC=20.

You also know that segments AD+DC=AC.

You can plug in all the information you know and begin to solve for x.

AD+DC=AC
20+20=3x+4
40=3x+4
36=3x
12=x

Now we know that:

x=12
AC=40
DC=20
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5 0
4 years ago
Find f(2) for f(x)=3x2+9x−6
Naya [18.7K]

Answer:

a. f(2)=24  

Step-by-step explanation:

Given function:

f(x)=3x^2+9x-6

To find f(2)

Solution:

In order to find f(2),we need to plugin input=2 i.e. the value of x=2 in the function and find the output by evaluating.

Plugging in x=2 in the given function.

f(2)=3(2)^2+9(2)-6

Evaluating.

f(2)=3(4)+18-6

f(2)=12+18-6

∴ f(2)=24   (Answer)

3 0
3 years ago
What is the slope intercept form of the equation for the line that has a slope of -2 and a y-intercept of 3?
Misha Larkins [42]

Answer:

y = - 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - 2 and c = 3, hence

y = - 2x + 3 ← equation in slope- intercept form

7 0
3 years ago
A 56-inch Woman cast a shadow that is 16 inches long. How tall is her child if his shadow is 14 inches long?
nikitadnepr [17]

Answer:49

Step by step is 56÷16=3.5

14x3.5=49

6 0
3 years ago
Student scored in the 83rd
melamori03 [73]

Answer:b

Step-by-step explanation:

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