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3 years ago

is the following statement sometimes,always or never true?negative - positive =negative defend your answer

1 answer:

7 0

It is always negative, because it keeps going down on the number line. Say it is negative 8 minus 5, it would be negative 13, because it adds to the negatives, so it would go deeper into the negatives.

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A farmer raises chickens and cows. There are 34 animals in all. The farmer counts 110 legs on the animals. How many cows and how

shtirl [24]

Answer:

13 chickens and 21 cows

Step-by-step explanation:

3 0

3 years ago

Given f(x) = 2x^2 - 5x, determine the value of f(4).

jeyben [28]

Answer:

Step-by-step explanation:

f(x) = 2x^2 - 5x

Let x=4

f(4) = 2 (4)^2 -5(4)

Exponents first

= 2*16 -5*4

Multiply

=32 -20

subtract

=12

5 0

3 years ago

True or False. The expressions 3 + y and 1/3 (6 + y) are equivalent?

vazorg [7]

Answer:

false

Step-by-step explanation:

consider y = 3

its 6 for one and 3 for the other

7 0

3 years ago

If dy/dx = x(y-1), find the equation of the tangent line at x=-2 with f(-2)=3

Lapatulllka [165]

Answer:

The equation of the tangent line passing through the point (-2,3) is

4 x + y +5 =0

Step-by-step explanation:

Step(i):-

Given that the slope of the tangent

$m = \frac{dy}{dx} = x(y-1)$

m = -2( 3-1) = -4

Given point x = -2

y = f(-2) =3

∴The given point ( x₁ , y₁) = ( -2 ,3)

Step(ii):-

The equation of the tangent line passing through the point (-2,3)

$y - y_{1} = m(x-x_{1} )$

$y -3 = -4(x-(-2))$

y -3 = -4( x+2)

y-3 = -4x -8

4x + y -3+8=0

4x +y +5=0

Step(iii):-

The equation of the tangent line passing through the point (-2,3) is

4 x + y +5 =0

3 0

2 years ago

Please help me,I need help understand so I can do my own! Worth 20 points!!

andrey2020 [161]

A) 5x⁴-8 <----- the tell-tale guy is the exponent of the variable, is 4, so the degree is 4, 5x then minus then 8, two terms, a BInomial

b) 4a²-2a-16 <---- same tell-tale guy, a² has a higher exponent than say "a", so, the degree is the higher exponent, degree of 2
it has 3 terms, thus is a TRInomial
c) 9m³ <---- well, is the only term, variable exponent is 3, so, degree of 3
only one term means is a MONOmial.

8 0

3 years ago