3 years ago

What is the domain of the function represented in the graph?

Mathematics

1 answer:

alisha [4.7K]3 years ago

5 0

Answer:

0-t-14

Step-by-step explanation:

Its the first one I don't want to type

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If a right rectangular pyramid is sliced perpendicular to its base into two congruent pieces, which two-dimensional plane sectio

Alex Ar [27]

d triangle cause if it's cut n half then it's just a triangle

8 0

3 years ago

I don't get this one too can someone explain it please

lukranit [14]

Answer:

15ab

Step-by-step explanation:

When you multiply out the square (p+q)^2, you get the trinomial ...

(p +q)^2 = p^2 + 2pq + q^2

Your binomial is (3a+2.5b), so you have ...

p = 3a

q = 2.5b

and the trinomial you get when you multiply it out is ...

(3a)^2 + 2(3a)(2.5b) + (2.5b)^2

= 9a^2 + 15ab + 6.25b^2

The first and last of these terms are shown on the right side of the given expression, so to finish out the identity, you need to replace * with 15ab.

5 0

3 years ago

What numbers add up to -5 and multiply to get -90

Molodets [167]

Let
x-------> the first number
y-------> the second number

we know that

$x+y=-5 \\ x=-5-y$ equation 1

$x*y=-90$ equation 2

substitute the equation 1 in equation 2

$[-5-y]*y=-90 \\ -5y- y^{2} =-90 \\ y^{2} +5y-90=0$

using a graphical tool to resolve the second order equation
see the attached figure
the numbers are
-12.311
7.311