3 years ago

Is -8 a whole number

Mathematics

2 answers:

serious [3.7K]3 years ago

6 0

Answer:

yes of course it is a whole number sinse it is a number that would be on a number line

Ede4ka [16]3 years ago

5 0

Answer:

yes

Step-by-step

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son4ous [18]

Answer: The second one.

3 0

3 years ago

The acceleration function a(t) (in m/s2) and the initial velocity v(0) are given for a particle moving along a line.

klemol [59]

Answer:

A: $v(t)=-t^2+4t-5$

Step-by-step explanation:

Acceleration is second derivative of position, velocity is first derivative. Therefore, the velocity is the integral of acceleration.

$v(t)=\int\ {2t+4} \, dt$

Integrate:

$-t^2+4t+C$

V(0)=-5:

$-0^2+4(0)+C=-5\\C=-5$

Therefore, v(t):

$v(t)=-t^2+4t-5$

7 0

3 years ago

Evaluate(4):g(x) = 8x2 + 9x - 7

Rudiy27

Answer:

Answer:

157

let g(4) = x

3 0

3 years ago

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Solve each system of equations using substitution. x×y=5 4+y=-x

valina [46]

Answer:

Step-by-step explanation:

$\left \{ {{xy=5} \atop {4+y=-x}} \right.\\\\ \left \{ {{xy=5} \atop {x=-4-y}} \right.\\\\=> \left \{ {{(-4-y)y=5} \atop {x=-4-y}} \right. \\\\ \left \{ {{-y^{2}-4y =5} \atop {x=-4-y}} \right. \\\\ \left \{ {{y^{2}+4y+5 =0} \atop {x=-4-y}} \right.$

because y² + 4y + 5 = (y+2)² + 1 > 0, ∀ y ∈ R

=> y² + 4y + 5 = 0 is unreasonable

=> no solutions

8 0

3 years ago

James earns $584 per week. If he receives a pay increase of 7.5%, find:

liberstina [14]

So the pay after the increase is 4380 so subtract 4380-584 which equals 3796.

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3 years ago

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