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STatiana [176]
3 years ago
6

What is the complete factorization of x2 + 4x − 45?

Mathematics
1 answer:
Zanzabum3 years ago
7 0

Answer:

(x-5) (x+9)

Step-by-step explanation:

what multiplies to -45 but adds to positive 4?  -5 and 9. that's how you get (x-5) (x+9)

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PLEASE HELP i need it !!!!!
yan [13]

Answer:

Step-by-step explanation: Area of triangle is base x height divided by 2. So do 8 + 8 to get the base which is 16m. 16 x 8 = 128/2 = 64 m^2

Area of a 1/4 circle is PI Radius ^2 then divided by 4. So \pi*8^2 = 201.06/4 = 50.265 m^2

So to get the area of the entire figure you need to find the perimeter of the figure. So you should use the perimeter formula for each shape and then add all your perimeters of each shape. 1/4 Circle perimeter formula is C=2πr/4 . Perimeter of a square is P = 4a. Perimeter of a triangle is P =

a + b + c . Circle solving 50.27/4 = 12.5675 m^2. Triangle solving 8 + 8 + 16 = 32 m ^2 . Square solving 4 x 8 = 32 m ^ 2 .

This was so confusing and I dont know if this helps or not but I tried my hardest!

8 0
3 years ago
Triangles A B C and X Y Z are shown. Which would prove that ΔABC ~ ΔXYZ? Select two options. StartFraction B A Over Y X = StartF
sergejj [24]

Answer: Answer is 3

BC        6

------ = ------

XY         3

Step-by-step explanation:

The statements below can be used to prove that the triangles are similar.

On a coordinate plane, right triangles A B C and X Y Z are shown. Y Z is 3 units long and B C is 6 units long.  

A B Over X Y = 4 Over 2

?  

A C Over X Z = 52 Over 13  

△ABC ~ △XYZ by the SSS similarity theorem.

Which mathematical statement is missing?

1.   Y Z Over B C = 6 Over 3  

2.  ∠B ≅ ∠Y

3.  B C Over Y Z = 6 Over 3  

4.  ∠B ≅ ∠Z

5 0
3 years ago
Read 2 more answers
20 chairs at 5 tables = ? chairs per table
alexandr402 [8]

Answer:

4 chairs per table

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I know they are similar because of equivalent angles but im not sure how to explain
o-na [289]
In ΔDCE + ΔGFH,
∠C = ∠F (given)
∠D = ∠C (angle sum of a triangle)
∠H = ∠E (angle sum of a triangle)
∴ ΔDCE is similar to ΔGFH
Hope this helps!
6 0
3 years ago
WILL GIVE BRAINLIEST GUESS IF YOU HAVE 2 A parallelogram has an area of 224 square centimeters and a base length of 16 centimete
ivann1987 [24]

Answer:

Area = base * height

224 = 16 * height

height = 14

The height is 14 centimeters.

Your answer is c.

3 0
3 years ago
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