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eduard
3 years ago
5

I need help with this

Mathematics
2 answers:
san4es73 [151]3 years ago
7 0
1. -9
2. -2
3. 3
4. 2

Positive + positive = positive
Negative + negative = negative
Negative + positive = subtract and take sign of bigger number
netineya [11]3 years ago
4 0

Answer:

1. -9

2. -2

3. -3

4. 2 (positive)

Step-by-step explanation:

positive + negative= positive

negative + positive =negative

positive +positive =positive

negative +negative =negative

hope you like it ( ' - ' )

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Jill counted 20 pigs and chickens.
Ede4ka [16]
Raa that's hard but all I have to do is count how many chicken legs there r n then same w pigs
8 0
3 years ago
Three times a number minus 2 is 25. What is the number?
Verizon [17]
3×9=27-2=25
3× what # - 2= 25
7 0
2 years ago
Read 2 more answers
Let g(x)=-5x+2 with g(-1)
masha68 [24]
Replace x with -1.

G(-1) = -5(-1) + 2

= 5 + 2

= 7


I hope this Helps!
4 0
3 years ago
PLZ HELP I BEGG U! 100 points
rusak2 [61]

Answer:

Solution given;

l=4.5ft

b=2ft

h=2ft

now

volume=l*b*h=4.5*2*2=18ft³

is a required volume.

Now

total surface area =2(lb+lh+bh)

=2(4.5*2+4.5*2+2*2)=44ft²

is a total surface area.

5 0
2 years ago
Read 2 more answers
HELP 40 POINTS
Tom [10]
Answer: the function g(x) has the smallest minimum y-value.


Explanation:


1) The function f(x) = 3x² + 12x + 16 is a parabola.


The vertex of the parabola is the minimum or maximum on the parabola.


If the parabola open down then the vertex is a maximum, and if the parabola open upward the vertex is a minimum.


The sign of the coefficient of the quadratic term tells whether the parabola opens upward or downward.


When such coefficient is positive, the parabola opens upward (so it has a minimum); when the coefficient is negative the parabola opens downward (so it has a maximum).


Here the coefficient is positive (3), which tells that the vertex of the parabola is a miimum.


Then, finding the minimum value of the function is done by finding the vertex.

I will change the form of the function to the vertex form by completing squares:

Given: 3x² + 12x + 16

Group: (3x² + 12x) + 16
Common factor: 3 [x² + 4x ] + 16
Complete squares: 3[ ( x² + 4x + 4) - 4] + 16
Factor the trinomial: 3 [(x + 2)² - 4] + 16
Distributive property: 3 (x + 2)² - 12 + 16
Combine like terms: 3 (x + 2)² + 4

That is the vertex form: A(x - h)² + k, whch means that the vertex is (h,k) = (-2, 4).


Then the minimum value is 4 (when x = - 2).


2) The othe function is <span>g(x)= 2 *sin(x-pi)
</span>

The sine function goes from -1 to + 1, so the minimum value of sin(x - pi) is - 1.


When you multiply by 2, you just increased the amplitude of the function and obtain the new minimum value is 2 (-1) = - 2


Comparing the two minima, you have 4 vs - 2, and so the function g(x) has the smallest minimum y-value.

7 0
3 years ago
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