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Dmitrij [34]
3 years ago
11

Factorise (x squared - y squared)Q)16

Mathematics
2 answers:
alekssr [168]3 years ago
4 0
X^2-Y^2 not factorable
Vesna [10]3 years ago
4 0
X^2-y^2 = (x-y)×(x+y)
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X^3-13x^2+40x=0 quadratic
lutik1710 [3]

Answer:

x(x-5)(x-8)

or

x=5

x=8

Step-by-step explanation:

  1. x(x^2-13x+40)
  2. x(x-5) (x-8)
6 0
3 years ago
PLEASE HELP ITS URGENT
OlgaM077 [116]

The missing step in this proof is ∠BAC ≅ ∠BDE ⇒ answer D

Step-by-step explanation:

If two triangles are similar by SAS, then their corresponding angles are

equal and the 3rd corresponding sides have constant ratio

In the two triangles ABC and DBE:

  • ∠ABC ≅ ∠DBE
  • \frac{AB}{DB}=\frac{BC}{BE}

Then the two triangles are similar

From similarity:

∠BAC ≅ ∠BDE

∠BCA ≅ ∠BED

∴ The missing step is ∠BAC ≅ ∠BDE

The missing step in this proof is ∠BAC ≅ ∠BDE

Learn more:

You can learn more about triangles in brainly.com/question/3451297

#LearnwithBrainly

8 0
3 years ago
Read 2 more answers
Please solve the complex number by finding the complex conjugate.Correct answer will get brainliest!
jasenka [17]

-2 - 2i*square root of 11/483

6 0
2 years ago
Read 2 more answers
The surface area of a cube is 24 square inches.<br> What is the side length of the cube?
Alex777 [14]

Answer:

2 inches

Step-by-step explanation:

A cube has 6 faces. Therefore, each face is 4 square inches. (24/6) The side length of the square (face of the cube) is the square root of the area. The square root of 4 is 2. There is your answer :)

3 0
3 years ago
A scale model of a building is 3 inches tall. If the building is 90 feet tall, find the scale of the model.
olganol [36]

The scale model of a building 3 inches tall if the building is 90 feet tall is 2:5

<h3>Scaling of measurement</h3>

Scaling is the way of enlarging or reducing the image of an object.

Given scale model of a building is 3 inches, if the building is 90feet tall, to write the scale;

Convert both measures to same units

Since 1 feet. = 12 in

90 feet = 90/12 in = 7.5 in

Take the ratio

3 : 7.5 = 30: 75

Reduce to lowest term

30: 75 = 2 : 5

Hence the scale model of a building 3 inches tall if the building is 90 feet tall is 2:5

Learn more on scale model here: brainly.com/question/261465

#SPJ1

7 0
2 years ago
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