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crimeas [40]
3 years ago
13

Can someone please help with this question pleaseee

Mathematics
2 answers:
Ulleksa [173]3 years ago
7 0

Answer: Choice C) 10.5

The distance from A to C is 7 units (count out the spaces between the two points, or subtract y coordinates 4-(-3) = 4+3 = 7)

Let AC = 7 be the base of the triangle. You might want to rotate the image so that AC is laying horizontally rather than being vertical.

Now move to point P. Walk 3 spaces to the right until you land on segment AC. This shows that the height of the triangle is 3 when the base is AC = 7.

base = 7, height = 3

area of triangle = (1/2)*base*height

area of triangle = 0.5*7*3

area of triangle = 10.5 square units

umka21 [38]3 years ago
5 0

Answer:

10.5

Step-by-step explanation:

count the units of the height: 7

count the base units: 3

7x3=21

area: lxw/2

a=10.5 units


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3 years ago
What are the solutions to the equation (x + 2)^2 = 49?
Mekhanik [1.2K]

Answer:

X= 5, -9

Step-by-step explanation:

(X+2)² =49

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(X+2) (X+2)= 49

Apply the distributive property;

X(X+2) +2 (X+2) =49

X²+2X+2X+4=49

X²+4X+4=49

Move 49 to the left side of the equation;

X²+4X+4-49=0

X²+4X-45=0

Apply Factorisation method;

Consider the form

a²+bx+c=0  

Find two numbers whose sum is equal to b and whose product is equal to c.
Comparing with our equation;

B =4 and C =45

We can use 9 and -5, this is because ;

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Replace X +4X-45=0 with (X-5) (X+9)=0

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X-5=0

X+9=0

Moving to the left side of the equation;

Therefore X= 5 and -9

8 0
2 years ago
Read 2 more answers
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