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Marta_Voda [28]
3 years ago
8

I need help with number 15 please and thanks

Mathematics
2 answers:
olasank [31]3 years ago
6 0
Do proportions

\frac{6}{y}= \frac{3}{5}  &#10;<u />
cross multiply=6*5
now divide=30/3
30 divided by 3 is what?
julsineya [31]3 years ago
5 0
The tree is 7.5ft because it's shadow is half it's height.
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Can anyone help me with number 3 please
Gnoma [55]
Answer:


I think is (B)
4 0
3 years ago
Cameron said that the Y intercept of a quadratic function always tells the maximum value of the function. explain Cameron's erro
Leno4ka [110]

Answer:

We can have two cases.

A quadratic function where the leading coefficient is larger than zero, in this case the arms of the graph will open up, and it will continue forever, so the maximum in this case is infinite.

A quadratic function where the leading coefficient is negative. In this case the arms of the graph will open down, then the maximum of the quadratic function coincides with the vertex of the function.

Where for a generic function:

y(x) = a*x^2 + b*x + c

The vertex is at:

x = -a/2b

and the maximum value is:

y(-a/2b)

4 0
3 years ago
Hi! Please help me, will mark brainliest!
PIT_PIT [208]

Answer:

p(t) = 0 for t = 1

p(t) = 1 for t = 1/8 = 8^-1

Step-by-step explanation:

the graph you will have to do yourself.

just go there and type in

-  log_{8}(x)

well, don't type "log" in letters.

you start by typing the "-" sign, and then you need to look up the functions by clicking on the "funcs" button and look for the log functions .

pick the

log_{a}

option. and then simply enter 8 as the first parameter in the {} brackets and x as the second in the () brackets.

and then you see.

any logarithm is 0 for x (or t) = 1.

because any a⁰ = 1.

and the logarithm gives you that exponent of the base number that leads to the given x value.

in other words : a logarithm is the inverse function of an exponential function.

the exponential function is

y = a^x

and the logarithm then determines

x =  log_{a}(y)

that is all.

and

-  log_{8}(x)  = 1

means that the logarithm itself delivered -1.

and 8^-1 = 1/8

so, p(t) = 1 for t = 1/8

5 0
2 years ago
Kayla drives 15 miles in 20 minutes. If she drove one hour in total at the same rate,
Rudik [331]

Answer:

45 miles

Step-by-step explanation:

first divide miles/minutes: 15 / 20 = 0.75

then multiply: 0.75 x 60 = 45

3 0
3 years ago
Match the part of the circle with the term that best describes it.​
nordsb [41]
GH: chord
M: point of tangency
MJ: diameter
J: center
MH: radius
GH: secant
6 0
2 years ago
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