2 years ago

There is a bag filled with 5 blue and 6 red marbles.

Mathematics

1 answer:

Vaselesa [24]2 years ago

7 0

Answer:

I need this answer so badly

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Can anyone help me with 5 and 7

Alexxx [7]

Answer:

4) add 5x and 9x

answer: 14x - 30

7) subtract 28 from 15

answer: x - 13

Step-by-step explanation: sorry if it is wrong I try my best

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2 years ago

The expression 9x2 - 5x - 7 has ___ terms and a constant of ___.

lukranit [14]

Here r ur terms : (9x^2) , (-5x) , (-7)......so there r 3 terms
constant : a number by itself...no variables....so ur constant is -7

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2 years ago

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A student solved 3/x−4=x/7 in six steps, as shown.

Stolb23 [73]

Answer:

Option A.

Step-by-step explanation:

The given equation is

$\dfrac{3}{x-4}=\dfrac{x}{7}$

Step 1: Multiply both sides by (x-4).

$3=\dfrac{x(x-4)}{7}$

Step 2: Multiply both sides by 7.

$21=x(x-4)$

Step 3: Using distributive property.

$21=x^2-4x$

Step 4: Isolate all terms on one side.

$0=x^2-4x-21$

Step 5: Find factors by splitting the middle term.

$0=x^2-7x+3x-21$

$0=x(x-7)+3(x-7)$

$0=(x-7)(x+3)$

Step 6: Using zero product property, we get

$x=-3, x=7$

It means student solved the equation correctly.

Therefore, the correct option is A.

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3 years ago

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Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→4 x2 − 16 x

ivolga24 [154]

Probably you are supposed to compute

$\displaystyle\lim_{x\to4}\frac{x^2-16}{x^2-4x}$

Factorize the numerator and denominator, then simplify:

$\displaystyle\lim_{x\to4}\frac{(x-4)(x+4)}{x(x-4)}=\lim_{x\to4}\frac{x+4}x=\frac{4+4}4=2$

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3 years ago

What goes into 32 and 12

zimovet [89]

Answer:

4 .For 32 it goes into 4 and for 12 it goes into 4

Step-by-step explanation:

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2 years ago

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