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Pie
3 years ago
5

Let f (x)=-3x+ determine f (-5)

Mathematics
1 answer:
loris [4]3 years ago
6 0
F(x)=-3x
f(-5)=-3* (-5)
 =15

hope ths help u !!!!!!!!!

^_^


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PilotLPTM [1.2K]

Given:

The right triangular prism.

Height of prism = 28 in.

Hypotenuse of base = 25 in.

leg of base = 24 in.

To find:

The lateral surface area of the prism.

Solution:

Pythagoras theorem:

Hypotenuse^2=Perpendicular^2+Base^2

Using Pythagoras theorem in the base triangle, we get

25^2=24^2+Base^2

625-576=Base^2

\sqrt{49}=Base

7=Base

The perimeter of the triangular base is:

P=7+25+24

P=56

Lateral area of a triangular prism is:

A=Ph

Where, P is the perimeter of the triangular base and h is the height of the prism.

Putting P=56,h=28 in the above formula, we get

A=56(28)

A=1568

Therefore, the lateral area of the prism is 1568 in².

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2 years ago
Which expression is equivalent to 13b+23b−56(b+1)?
ale4655 [162]
Start by combining LIKE-TERMS. 13b AND 23 are LIKE-TERMS because they have the same variable (B) and numbers. Remember PEMDAS OR Please Excuse My Dear Aunt Sally. (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction). There is also FOIL (First, Inside, Outside, Last). Because we will start with Parenthesis(Use the FOIL method because the 56 is part of the parentheses) first, (-56 x b[first part of the set]) = -56b  THEN (-56 x [+ {always carry the sign, this shows that it is positive}]1) = -56

Now we have 13b+23b -56b-56
                     =36b        -56b -56
                     = -20b    - 56
       This is your final equation because THESE ARE NOT LIKE-TERMS, therefore, they CANNOT be combined
7 0
3 years ago
Read 2 more answers
What is the scale factor in the dilation? will b marked brainliest
labwork [276]

Answer:

3

Step-by-step explanation:

When both sides in the pre-image are multiplied by 3, you get the image. and since it is getting bigger and not smaller, it would be a whole number aka 3.

5 0
2 years ago
Write k divided by 11 is 7 in and equation
Ronch [10]

Answer:

k/11 = 7

Step-by-step explanation:

K is being divided by 11 and equals 7

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3 years ago
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Help me solve this please. I don't know the formula for this.​
den301095 [7]

Answer

48,000

Step-by-step explanation:

base(x)

1,200(40)

8 0
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