Evaluate u + xy, for u = 20, x = 9, and y = 8.

Mathematics

1 answer:

Kazeer [188]3 years ago

7 0

92 is your answer
20 + 9(8)

You might be interested in

The 1,840 rock concert tickets sold were twice the amount of jazz concert tickets sold. <br><br>

Vanyuwa [196]

Ur gay. Jeydydhushwusfb

5 0

2 years ago

Let f and g be the functions defined by f(x) = 10^ (x+2 / 3) and g(x) = log (x3 / 100) for all positive real numbers,

Vaselesa [24]

Answer:

F(x) and g(x) are not inverse functions.

Step-by-step explanation:

In order to calculate the inverse function of a function, we have to isolate X and after that, we change the variables.

As our function f(x) is a exponentian function, we can apply logarithm with base 10 (log) in both sides in order to isolate X. Remember that log10=1.

$[tex]y=10^{(x+\frac{2}{3}) }\\\\log y=log 10^{(x+\frac{2}{3}) }\\log y = (x+\frac{2}{3}) . log10\\\frac{log Y}{log10} = (x+\frac{2}{3})\\\frac{log Y}{1} = (x+\frac{2}{3})\\log Y-\frac{2}{3}=x$ [/tex]

Now we change the variables.

$F(x)=log x-\frac{2}{3}$

F(x) and g(x) are not inverse functions.

4 0

3 years ago

Please can someone answer

Eduardwww [97]

Answer: 10 cm

Step-by-step explanation:

The answer would be 10cm for the boys because if you think about it all together for boys and girls it’s 161 cm and girls have 151 cm so if you add them toge your suppose to get 161 cm so the answer is 10 cm

5 0

3 years ago

5^2x=28 <br> (Help me please!!!!!!)

gizmo_the_mogwai [7]

Okay so i would do this with a logarithm.
5^(2x) = 28
take the log of both sides
log5^(2x) = log28 and because of this log rule: logA^n = nlogA
(2x)log5= log28
then divide by log5 on both sides
2x = log28 / log5
and divide by 2
x = (log28 / log5) /2
this can be found with a calculator:

x= about 1.03521...
round that to whatever the question says to

6 0

3 years ago

How do you write 0.3 as a fraction?

dimaraw [331]

Answer:

3/10

Hope it helps

7 0

3 years ago

Read 2 more answers