All categories

3 years ago

What is the value of this expression when x=-6 and y= -1/2? 4(x^2+3)-2y

Mathematics

2 answers:

daser333 [38]3 years ago

5 0

Answer:

Explanation:

Substituting

for

and

−

for

gives:

−

→

(

−

)

(

)

−

(

−

)

→

(

−

)

(

)

−

(

−

)

→

−

→

Hope I did not make it hard enough

Please give me Brainliest

Semmy [17]3 years ago

5 0

Answer:

157

Step-by-step explanation:

Given 4(x^2+3)-2y, substitute -6 for x and -1/2 for y:

4([-6]^2 + 3) - 2(-1/2), or

4 (36 + 3) + 1, or

4(39) + 1, or, finally, 157.

You might be interested in

The earth is on average 92,900,000 miles from the sun. In July, the distance is 94,400,000 miles, the farthest of any month. Wha

irinina [24]

Answer:

4.468275*(10)^(11)

Step-by-step explanation:

Difference is 94400000-9290000=85110000 miles. This distance in feet is 4.468275*(10)^(11)

4 0

3 years ago

Which could be the first step and simplifying this expression? Check all that apply.

Triss [41]

$\bf \left( x^3x^{-6} \right)^2\implies \left( x^{3-6} \right)^2\implies \stackrel{1st~Step}{\left( x^{-3} \right)^2}\implies x^{-6}\implies \cfrac{1}{x^6}\\ \qquad \Downarrow\\ \stackrel{\textit{distributing the exponent}}{\left( x^{3\cdot 2}x^{-6\cdot 2} \right)}\\ \qquad \Downarrow\\ \stackrel{1st~Step}{x^6x^{-12}}\\ \qquad \Downarrow\\ x^{6-12}\\ \qquad \Downarrow\\ x^{-6}\\ \qquad \Downarrow\\ \cfrac{1}{x^6}$