I need help please!!!

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

4 0

Answer:

Image is all black, cant help ya!

Step-by-step explanation:

I believe it is 5x-7+ jkjksorry

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Help im in k12 9th grade

dem82 [27]

When factoring find 2 numbers that when added together equal the middle value and when multiplied equal the last value.

min this problem the middle value is 7 and the last value is 10

5 + 2 = 7 and 5 x 2 = 10

The answer is: (x+2)(x+5)

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2 years ago

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The GCF of any two even numbers is always even. Determine whether the statement is true or false. If true, explain why. If false

choli [55]

True because the common factor to both numbers would be an even number.

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3 years ago

What is the value of y in this system of equations: 3x + y = 9 y = –4x + 10 ?

Ahat [919]

3x + y = 9 (I)
y = –4x + 10 (II)
------------------------
 $\left \{ {{3x + y = 9 } \atop {y = -4x + 10 }} \right.$

Pass the incognito "4x" to the first term, changing the signal when changing sides.
-------------------------
simplify by (-1)
 $\left \{ {{3x + y = 9.(-1)} \atop {4x + y = 10 }} \right.$ 

-------------------------
 $\left \{ {{- 3x - \diagup\!\!\!\!y =-9} \atop {4x + \diagup\!\!\!\!y = 10}} \right. 
$

-------------------------
 $\left \{ {{- 3x = - 9} \atop {4x = 10}} \right.$ 

-----------
 $\boxed{x = 1}$ 

Substitute in equation (I) to find the value of "Y".

3x + y = 9 (I)
3*(1) + y = 9
3 + y = 9
y = 9 - 3
$\boxed{y = 6}$

Answer:
$\boxed{\boxed{ \left \ {{x=1} \atop {y=6}} \right. }}$

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3 years ago

The perimeter of a 14 ft , 8 ft rectangle

lara [203]

Answer:44 ft

Step-by-step explanation:

P=2(l+w)

P=2(14+8)

P=2(22)

P=44

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3 years ago