Ask question

Ask question

All categories

3 years ago

15

Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. Se

e Example 9.
log7 2/9

1 answer:

Marta_Voda [28]3 years ago

4 0

Answer:

-0.7781

Step-by-step explanation:

Using the change of base formula,

Log 2/9 to base 7 = Log (2/9) ÷ Log 7 = Log 0.22 ÷ Log 7

Log 0.22 = -0.6576

Log7 = 0.8451

Log 0.22 ÷ Log 7 = -0.6576 ÷ 0.8451 = -0.7781

You might be interested in

Abby, Bik, Cari, Dawn, and Ellen collect T-shirts. Abby has the most. Bik has 2.5 times as many T-shirts as Cari. Dawn has 1/3 a

bixtya [17]

A=abby's shirts
b=bik's shirts
c=cari's shirts
d=dawn's shirts
e=ellen's shirts

a> everybody
b=2.5c
d=(1/3)c
a+b+c+d=120
e=2d+1
e=13
oook

e=13=2d+1
13=2d+1
12=2d
d=6

d=(1/3)c
6=(1/3)c
18=c

b=2.5c
b=2.5(18)
b=45

a+b+c+d=120
a+45+18+6=120
a+69=120
a=51

4 0

2 years ago

If the actor is to the audience’s right the actor is _______.

kati45 [8]

I think the answer is stage left because if you flip your view point, you'll get stage left.
Hopefully that helped! :)

7 0

3 years ago

In the diagram below, A8 is parallel to CD. What is the value of y? Help me

Anna11 [10]

Answer:

C. 108

Step-by-step explanation:

The angles are known as same-side interior angles. They are supplementary angles so their sum is 180°.

$y+72=180\\y+72-72=180-72\\y=108$

4 0

2 years ago

Can someone help me with this? It's due tomorrow

Alina [70]

Ok so I did 25 divided by 2 I got 12.5 and 26 divided by 3 and got 8.6 so the best deal would be 8.6 for part A .

8 0

3 years ago

Today I spent 90 minutes playing sports. Sixty percent of the time I was playing tennis. For how many minutes did I play tennis?

jeyben [28]

Answer:

54min

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers