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Vinil7 [7]
3 years ago
7

Plzzzzzzzzzzzzzzzzzzzzzz

Mathematics
1 answer:
Arada [10]3 years ago
8 0

(2x² + 3)(4x +5) -8x(x²-2)

2x²(4x + 5) + 3(4x + 5) - 8x(x² - 2)

8x³ + 10x² + 12x + 15 - 8x³ - 2

= 8x³ - 8x³ = 0

= 10x² + 12x + 15 - 2

= 10x² + 12x + 13

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Please help with these questions!!!
klasskru [66]

Answer:

Step-by-step explanation:

Q1: (x-1) * (x+1) * (x-2) * (x+2)

Q2: x'1 = -1/3, x'2 =2

Q3: i dont get this one sry

4 0
3 years ago
Determine the value of x
Mekhanik [1.2K]

Answer:

2√2

Step-by-step explanation:

<u>By </u><u>using </u><u>trigonometry,</u>

sin 45° = x/4

x = 4sin 45°

x = 2√2

<u>By </u><u>using </u><u>Pythagorean</u><u> </u><u>theorem</u><u>,</u>

Since you know that it is an isosceles triangle and it's also a right-angled triangle,

4² = x² + x²

16 = 2x²

x² = 8

x = √8

= 2√2

6 0
3 years ago
Five cats each ate 1/4 cup of cat food. How much food did the five cats eat?
qaws [65]

Answer:  Five cats ate 1 and a quarter of cat food.


Step-by-step explanation

Given:-

Cat food ate by one cat = 1/4 cup

Cat food ate by five cats =5\times \frac{1}{4} \text{ [Multiplying both sides with 5 ]}\\\\=\frac{5}{4}=\frac{4+1}{4}=\frac{4}{4}+\frac{1}{4}=1+\frac{1}{4}=1 and 1/4 cup.

Therefore cat food ate by five cats = 1 and a quarter of cup.[ here a quarter =1/4]

7 0
3 years ago
What is the slope and y-intercept of the line graphed below?
nasty-shy [4]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
What is an equation of the line that passes through the point (1,−7) and is parallel to the line 3x+y=3
levacccp [35]
If I’m not wrong, I got y=-3x-4
6 0
3 years ago
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