Help with geometry please! I don't know how to do this

Mathematics

1 answer:

sesenic [268]3 years ago

4 0

We know that
scale factor=2.5
volume larger warehouse=scale factor³*volume smaller warehouse
volume larger warehouse=2.5³*volume smaller warehouse
volume larger warehouse=[15.625]*volume smaller warehouse

that means
the volume of the larger warehouse is 15.625 times the volume smaller warehouse

the energy and cost is proportional to the volume
so
the new cost is 15.625*$125-----> $1953.12------> $1953

the answer is
$1953

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3^b=17 exponentials into log form

IRINA_888 [86]

Solve for the real domain

$3^b = 17$

if f(x) = g(x) , then ln (f(x)) = ln (g(x))

$ln ( 3^b) = ln (17)$

$log _{a} (x^b) = b*log _{a} (x)$

$ln(3^b) = bln(3)$

$bln(3) = ln (17)$

Solve $bln(3) = ln (17)$

$b = \frac{ln(17)}{ln(3)}$

hope this helps !.

5 0

3 years ago

Can someone help me please

iris [78.8K]

Answer:

"I can find the maximum or minimum by looking at the factored expression of a quadratic function by reading off its roots and taking the arithmetic average of them to obtain the $x$ -coordinate of the quadratic function, and then substituting that value into the function."

Step-by-step explanation:

Because of the symmetry of quadratics (which is the case here because we have two factors of degree 1, so we are dealing with a <em>polynomial</em> of degree 2, which is a fancy way of saying that something is a quadratic), the $x$ -coordinate of the extremum (a fancy way of saying maximum or minimum) is the (arithmetic) average of the two roots.

In the factored form of a quadratic function, we can immediately read the roots: 3 and 7. Another way to see that is to solve $(x-3)(x-7)=0$ , which gives $x-3=0 \vee x-7=0$ (the 'V' stands for 'or'). We can take the average of the two roots to get the $x$ -coordinate of the minimum point of the graph (which, in this case, is $x=\frac{3+7}{2} = \frac{10}{2} = 5$ ).

Having the $x$ -coordinate of the extremum, we can substitute this value into the function to obtain the maximum or minimum point of the graph, because that will give the $y$ -coordinate of the extremum.