1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UkoKoshka [18]
3 years ago
5

Three numbers a;b; 9; ... are in geometric sequence. If 1 is subtracted from the first term then

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0

if a b 9 are in GP

b÷a = 9 ÷ b

b^2 = 9a

if a - 1 b 9 are in AP

2b = a+8

b = a+8÷2

substitute

b is equal to a + 8 by 2 in b square equal to 9 a

(a+8÷2)^2 = 9a

a^2+16a+64 = 36a

a^2 -20a +64 =0

(a-16) (a-4) =0

a= 16 or a=4

when a=16 b= 12

when a=4 b= 6

Value of a and b are given above

You might be interested in
For each hour he babysit,Anderson earns 1$ more than half of carey's hourly rate.Anderson earns 6$ per hour. wich equation can b
Lena [83]

Answer:

The expression to find Carey's hourly rate is: c = 2*a - 2. Carey's hourly rate is $10.

Step-by-step explanation:

Anderson receives 1 more than half of carey's hourly rate. If we call Anderson's rate by "a" and Carey's by "c", we can express this phrase in the following equation:

a = \frac{c}{2} + 1

We want to find the Carey's rate, therefore we need to isolate the "c" variable.

\frac{c}{2} + 1 = a\\\frac{c}{2} = a - 1\\c = 2*a - 2

Since Anderson earns $6, then we can find Carey's rate:

c =  2*6 - 2 = 12 - 2 = 10

6 0
3 years ago
You purchase a computer for $1999.99 plus 7% sales tax. The electronics store offers an installment loan that allows you to pay
Pepsi [2]

Answer:

hhggfevrvrb4h4h5n5n5btbrb4b4b5brbtbtbynynyn6n

7 0
3 years ago
Help please
kirill115 [55]

Answer:

12

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A _______ is a set of characters that uses the same typeface.
eimsori [14]
A font is a set of characters that uses the same typeface.It is a specific typeface of a fix size and style. An example is, a font may be Arial 12 pt bold, while another font may be Times New Roman 14 pt italic. According to Merriam dictionary, font is an assortment or set of type or charactersall of one style and sometimes one size.
4 0
3 years ago
Find the value of x, y, and z if<br> 5<br> X=<br> y =<br> Z=
BlackZzzverrR [31]

Answer:

x = 12

y = 9

z = 11

Step-by-step explanation:

so, let's just do all the calculations in there :

(3×5)⁴ = 3⁴×5⁴

(2×3)⁵ = 2⁵×3⁵

(2×5)⁷ = 2⁷×5⁷

multiplying all 3 terms is then

3⁴×5⁴×2⁵×3⁵×2⁷×5⁷

more let's "group" and combine these terms based on the bases of the power operations, as we need to get an expression showing 2, 3 and 5 with their powers.

so, for the base of 2 we have

2⁵×2⁷ = 2¹²

for the base of 3 we have

3⁴×3⁵ = 3⁹

fire the base of 5 we have

5⁴×5⁷ = 5¹¹

so we get

2¹² × 3⁹ × 5¹¹

=>

x=12

y=9

z=11

6 0
3 years ago
Other questions:
  • Find the area and the circumference of a circle with diameter 4 yd.
    8·1 answer
  • Solve the systems of equation by graphing (Picture provided)
    13·1 answer
  • What is 26 divided by 988
    9·1 answer
  • 16. If Owen's house is point A (11, 3) and David's house is point B (15, 13),
    11·1 answer
  • You sit down to read a book and the phone rings on five occasions. You assume if you sit
    5·1 answer
  • Anyone nervous about semester exams
    6·1 answer
  • Marking brainliest
    10·2 answers
  • A new Honda Civic costs $ 22 , 000 the year it is made. This car depreciates, losing value at a rate of 5 % each year on average
    7·1 answer
  • Do these have the same horizontal asymptote or no?
    11·2 answers
  • Look at point C and D on the graph..
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!