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
34kurt
2 years ago
7

2

alt=" 3^(x+7) = 9^(x-1)" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
DaniilM [7]2 years ago
4 0
3(x + 7) = 9(x - 1)
3(x) + 3(7) = 9(x) - 9(1)
  3x + 21 = 9x - 9
<u>- 3x          - 3x     </u>
          21 = 3x - 9
        <u>+ 9         + 9</u>
         <u>30</u> = <u>3x</u>
          3      3
         10 = x
You might be interested in
Bette had 280 kilograms of bolts and put the same amount into each of 8 boxes. How
Elenna [48]

Answer:

35

Step-by-step explanation:

You have to divide 280 by 8 and that's how you get it.

4 0
3 years ago
terrell wants to drive his car at a speed of 50 miles per hour for 2.75 hours. his car has a fuel efficiency of 25 miles per gal
nlexa [21]
Terrell will need 5.5 gallons of fuel
7 0
3 years ago
Read 2 more answers
If a = 5, b = 5 and c = 10, what is the value of ac / 2b ?
Sophie [7]

Answer:

The answer is 5 .

Step-by-step explanation:

You have to substitute the values of a, b and c into the expression :

\frac{ac}{2b}

Let a = 5,

Let b = 5,

Let c = 10,

\frac{5 \times 10}{2 \times 5}

=  \frac{50}{10}

= 5

3 0
3 years ago
Calculate the length of AC to one decimal place in the trapezium below.
a_sh-v [17]

Answer:

First we will split trapezium on two geometric figure.

One is rectangle and the second is right triangle.

When we subtract 11-4=7cm  we get one cathetus of the right triangle a=7cm also we know hypotenuse which is c=16cm.

We will use Pythagorean theorem to find the second cathetus b

b=√16∧2-7∧2= √256-49= √207 ≈ 14.39cm =DC =>

AC =√(DC)∧2+(AD)∧2= √14.39∧2+11∧2= √207+121= √328= 18.1cm

AC=18.1cm

Good luck!!

7 0
3 years ago
A computer tablet is 0.24 meter long. How long is the computer tablet in centimeters? Please show work
AysviL [449]

Answer:

1 meter equals 100 centimeters, to find out how many centimeters you want to take 0.24*100= 2.4,

Therefore; the computer tablet is 24 centimeters long.

8 0
2 years ago
Other questions:
  • I need help please!!!! Jon buys t shirts online for his friends. the table below shows the cost including the shipping fee. writ
    13·1 answer
  • Which measurement is the best estimate for the thickness of a phone book?
    6·2 answers
  • {y=4x+4} and {y=-4x-12}<br> 4x+=-4x-12
    6·1 answer
  • Calculate the area of a circle with radius of 3.5 (1dp) please help
    7·1 answer
  • Michiko bought pens for $3.85 and pencils for $1.25 how much did she spend all together? ​
    5·1 answer
  • Write each number below in Scientific Notation.
    10·1 answer
  • You are making meat loaf with yield: 50, 4oz portions what is the total recipe cost
    12·1 answer
  • Collect like terms<br>d+ d +d​
    11·2 answers
  • A nickel has an approximate diameter of 20 millimeters and an approximate thickness of 2
    11·1 answer
  • 3. Adjacent sides of a rectangle are in the ratio 5:12, if the perimeter of the rectangle is 34 cm, find the length of the diago
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!