WHAT IS THE ANSWER TO #37 and #38 20 points!

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

5 0

37.

Call the amount David has, d.
Call the amount Jhumpa has, j.

Jhumpa has $55.
Jhumpa has $21 more than David.
$55 is $21 more than David has, so if you add $21 to David's amount, d, you get Jhumpa's amount, j

j = d + 21

38.

Let the temperature at noon be t.
The temperature fell 16 deg from noon, so you must subtract 16 from the temperature at noon to get the temperature at 3 pm. The temperature at 3 pm was -3 deg.
That means that t minus 16 must equal -3.

t - 16 = -3

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After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third

irinina [24]

Answer:

The 3rd term is

$ar^2$

Step-by-step explanation:

From the given information, the first term of the sequence is

$a_1=a$

The common ratio of the sequence is

$r$

The explicit formula for a geometric sequence is :

$a_n=a_1(r^{n-1})$

To find the third term, we put n=3 to get:

$a_n=a(r^{3-1})$

This simplifies to:

$a_3=ar^2$

7 0

4 years ago

Plz help me!!<br><br> Step by step to understand the answer plz

Doss [256]

Answer:

2/3

Step-by-step explanation:

so the inverse takes us from the range to the domain... they tell us that f(4) goes to 5.. so if we were to take the inverse f $\left \[-1} \atop$ (5) it takes us back to 4... and the slope at 4 or the derivative was 2/3 so that's what we get for f $\left \ {{-1} \atop$ '(5) :)