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2 years ago

Guys please hurry this is the only question i need a right answer on, promise to give brainliest to the right answer

Mathematics

1 answer:

Zanzabum2 years ago

7 0

Explanation:

If $g(x) = x^2 + 5x,$ then

$g(-6m) = (-6m)^2 + 5(-6m)$

$\;\;\;\;\;\;\;\;\;= 36m^2 - 30m$

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Annie says the two expressions are equalized. Is she correct? Explain using different strategies -3x+6 and 3(-x -2).

borishaifa [10]

Step-by-step explanation:

By using Distributive Property on 3(-x - 2),

3(-x - 2) = (3)(-x) + (3)(-2) = -3x - 6.

Since -3x - 6 =/= -3x + 6,

they are not equalized.

7 0

3 years ago

A table saw is on clearance for 20% off. If the sale price of the table saw is $380, what was the original price? Justify your s

Nikolay [14]

20% off means it is selling for 80% of the original price ( 100% - 20% =80%)

Divide the sale price by 80% as a decimal:

380/0.80 = 475

The original price was $475

Justify:

Multiply the original price by 20% and subtract:

475 x 0.20 = 95

475-95 = $380 which is the sale price.

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3 years ago

Read 2 more answers

In Salem, 82% of the households have cable television and Internet access and 90% of the houses have cable television. What is t

polet [3.4K]

Well there eqaul but one is just got the internet added to there home

5 0

3 years ago

9(x+3)=4x-3 I need to use the distributive property to solve

algol [13]

Answer:

x= 6

Step-by-step explanation:

8 0

3 years ago

I need help with this problem

Arada [10]

Answer:

65.56°

Step-by-step explanation:

We know that if we take dot product of two vectors then it is equal to the product of magnitudes of the vectors and cosine of the angle between them

That is let p and q be any two vectors and A be the angle between them

So, p·q=|p|*|q|*cosA

⇒ $cosA=\frac{u.v}{|u||v|}$

Given u=-8i-3j and v=-8i+8j

$|u|=\sqrt{(-8)^{2}+ (-3)^{2}} =8.544$

$|v|=\sqrt{(-8)^{2}+ (8)^{2}} =11.3137$

let A be angle before u and v

therefore, $cosA=\frac{u.v}{|u||v|}=\frac{(-8)*(-8)+(-3)*(8)}{8.544*11.3137} =\frac{40}{96.664}$

⇒ $A=arccos(\frac{40}{96.664} )=arccos(0.4138 )=65.56$

Therefore angle between u and v is 65.56°

5 0

2 years ago