Can y’all help me on this question?

Mathematics

1 answer:

docker41 [41]3 years ago

3 0

Answer:

134

Step-by-step explanation:

There's 2 blue arrows where 39 is, and the same arrows where 4x+7 are. This means that they are the same length. So, 4x+7 = 39. Perimeter means you add, so 28+28+39+39 = 134.

You might be interested in

What's the answer I'm sooo stuck.

vodka [1.7K]

The answer is A I’m pretty sure

4 0

2 years ago

A quadratic function and an exponential function are graphed below. How do the decay rates of the functions compareover the inte

Kobotan [32]

To check the decay rate, we need to check the variation in y-axis.

Since our interval is

$-2We need to evaluate both function at those limits.At x = -2, we have a value of 4 for both of them, at x = 0 we have 1 for the exponential function and 0 to the quadratic function. Let's call the exponential f(x), and the quadratic g(x).[tex]\begin{gathered} f(-2)=g(-2)=4 \\ f(0)=1 \\ g(0)=0 \end{gathered}$

To compare the decay rates we need to check the variation on the y-axis of both functions.

$\begin{gathered} \Delta y_1=f(-2)-f(0)=4-1=3 \\ \Delta y_2=g(-2)-g(0)=4-0=4 \end{gathered}$

Now, we calculate their ratio to find how they compare:

$\frac{\Delta y_1}{\Delta y_2}=\frac{3}{4}$

This tell us that the exponential function decays at three-fourths the rate of the quadratic function.

And this is the fourth option.

4 0

1 year ago

1400 concert tickets were sold for the festival. tickets cost $25 for covered pavilion seats and $10 for lawn seats. total recei

zalisa [80]

Each type of ticket, 400 of them were sold. :)

3 0

2 years ago

A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round y

GaryK [48]

From V= 4/3*pi*r^3
dV/dt = 4pi(r^2)dr/dt 
so when dV/dt=30 and r = 19 
30 = 4pi(361)dr/dt 
dr/dt = 30/[4pi(361)] 

now in 
A = 4pir^2 
dA/dt = 8pi(r)dr/dt 
= 8pi(19)*30/[4pi(361)] 
= you finish it.
HOPE THIS HELPS.

3 0

2 years ago

The display on a calculator screen is shown below.

love history [14]

You formatted the equation wrong for the setting your calculus on i would recommend using a Ti-34

4 0

3 years ago