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Lesechka [4]
3 years ago
14

Iiiiiiiiiisssssss -2(x+y)+9=1 linear or not

Mathematics
1 answer:
KatRina [158]3 years ago
7 0

Answer:

From my research the equation -2(x+y)+9=1 is linear

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Please help i put 15 points for this
PilotLPTM [1.2K]

Answer:

<u>Options 3, 4 and 5</u>

Step-by-step explanation:

Given:

F(x) = x³ + 3x² - 25x - 75

Factor the given function:

F(x) = x³ + 3x² - 25x - 75

⇒ take x² a common from (x³ + 3x²) and (-25) a common from (- 25x - 75)

F(x) = x²(x+3) - 25 (x+3)

⇒ take (x+3) as a common

F(x) = (x+3) (x² - 25)

(x² - 25) = (x-5) (x+5)

∴ F(x) = (x+3) (x-5) (x+5)

<u>The answer are options 3, 4 and 5</u>

7 0
4 years ago
Can someone please help me asap!!! I’ll mark brainlist !!
Leni [432]

Answer: 2.4

Step-by-step explanation:

4/5 x 3 = 2 and 3/5

2 and 3/5 converted into decimal is 2.4

You're welcome!

4 0
3 years ago
Work out length of BC
Neporo4naja [7]

Answer:

assume 13 = z \\ 8 =x  \\ bc = y

by phytagorean theorem

{y}^{2}  +  {x}^{2}  = z^{2}

so

bc = y =  \sqrt{ {z}^{2}  -  {x}^{2} } =  \sqrt{169 - 64}   =  \sqrt{105}

3 0
3 years ago
Read 2 more answers
Billy is helping to make pizzas for a school function. He's made 25 pizzas so far. His principal asked him to make at least 30 p
malfutka [58]

Answer:

5 ≤ x ≤ 50; Billy needs to make at least 5 more pizzas but no more than 50

Step-by-step explanation:

Let

x -----> the number of pizzas

we have the compound inequality

30 \leq x+25 \leq 75

Divide the compound inequality into two inequalities

x+25 \leq 75 ----> inequality A

x \leq 75-25

x \leq 50\ pizzas

The solution of the inequality A is the interval -----> (-∞,50]

30 \leq x+25 -----> inequality B

30-25 \leq x

5 \leq x  

Rewrite

x \geq 5

The solution of the inequality B is the interval -----> [5,∞)

therefore

The solution of the compound inequality is

(-∞,50] ∩ [5,∞)=[5,50]

so

5\leq x \leq 50

Billy needs to make at least 5 more pizzas but no more than 50

8 0
3 years ago
Read 2 more answers
A rectangular field is 100 meters wide and 145 meters long. A coach asks players to run from one corner to the opposite corner d
spayn [35]

Answer:

313.9

Step-by-step explanation:

running around the field is 100+100+145+145 = 490

across the field:

(100)^2 + (145)^2 = c^2

10000+21025 = c^2

c=176.1

490 - 176.1 = 313.9

3 0
4 years ago
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