3 years ago

3×+2×^2-9Evaluate the expression below when x=9

Mathematics

2 answers:

Blizzard [7]3 years ago

8 0

The answer is 180.

Hope that helped!

posledela3 years ago

5 0

3x + 2x² -9. when x = 9

<span>3*9 + 2*9² -9
</span>
27 + 162 - 9 = 180

<span>= </span><span>180</span>

You might be interested in

PLS HELP ME I WILL GIVE BRAINLESS] Solve the problems. AA + 5 JoJo Seaweed walks at a constant rate d. able shows the relationsh

musickatia [10]

Answer:

I think that if u times it i will be 80 s and 320 f

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

P (-2,6), Q (9,6), R (7, -1), S (-4, -1) are the vertices of a quadrilateral.

vova2212 [387]

Step-by-step explanation:

Parallelogram

Reflect y=-1 ;x changes sign

6 0

3 years ago

Which expressions are equivalent to 10a - 25 + 5b

sergey [27]

Answer:

Step-by-step explanation:

$10a-25+5b\\\\-2(-5a-25+5b)=(-2)(-5a)+(-2)(-25)+(-2)(5b)\\=10a+50-10b\qquad NOT\\\\(2a-5+b)(5)=(2a)(5)+(-5)(5)+(b)(5)=10a-25+5b\qquad YES\\\\10(a-2.5+0.5b)=(10)(a)+(10)(-2.5)+(10)(0.5b)\\=10a-25+5b\qquad YES\\\\(-2a+5-b)(-5)=(-2a)(-5)+(5)(-5)+(-b)(-5)\\=10a-25+5b\qquad YES\\\\-10(-a-2.5-0.5b)=(-10)(-a)+(-10)(-2.5)+(-10)(-0.5b)\\=10a+25+5b\qquad NOT$