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
weqwewe [10]
3 years ago
9

Which equation is true when x= -9?​

Mathematics
1 answer:
Alla [95]3 years ago
7 0

Answer:

2(4-x)=26

Step-by-step explanation:

<u><em>1. Plug "-9" into each equation as "x"</em></u>

2(4--9)=26

5(-9)+30=75

5(12--9)=15

3(-9+11)=-16

<u><em>2. Solve each equation</em></u>

2(4--9)=26 ~ 26=26

5(-9)+30=75 ~ -5=75

5(12--9)=15 ~ 105=15

3(-9+11)=-16 ~ 6=-16

You might be interested in
Evaluate 5w-w/x when w=6 and x=2
Dmitry [639]
Remembering PEMDAS we solve like this
5•6=30   6÷2=3    30-3=27
27 is answer. it is easy, just replace the letter with the number and solve it
5 0
3 years ago
Read 2 more answers
Anna invests $7,000 in an account that compounds interest continuously and earns 7.5%. How long will it take for her
NeX [460]

Answer:

It will take 36.1 years for her money to reach $105,000.

Step-by-step explanation:

The amount of money earned after t years in continuous interest is given by:

P(t) = P(0)e^{rt}

In which P(0) is the initial investment and r is the interest rate, as a decimal.

Anna invests $7,000 in an account that compounds interest continuously and earns 7.5%.

This means that P(0) = 7000, r = 0.075

How long will it take for her money to reach $105,000?

This is t for which P(t) = 105000.

P(t) = P(0)e^{rt}

105000 = 7000e^{0.075t}

e^{0.075t} = \frac{105000}{7000}

e^{0.075t} = 15

\ln{e^{0.075t}} = \ln{15}

0.075t = \ln{15}

t = \frac{\ln{15}}{0.075}

t = 36.1

It will take 36.1 years for her money to reach $105,000.

6 0
3 years ago
Complete the definition.
Sati [7]

Answer:

A relation has an input value which corresponds to an output value. When each input value has one and only one output value, that relation is a function. Functions can be written as ordered pairs, tables, or graphs. The set of input values is called the domain, and the set of output values is called the range.

Step-by-step explanation:

5 0
3 years ago
WHAT DOES x equal ????
Anna71 [15]
Equal is the with the 38+
5 0
3 years ago
Can someone help me with this? I don't understand?
shutvik [7]

Answer:

Step-by-step explanation:

∛(1000)²  =      find the cubed root of 1000 squared    1000 times 1000

∛1,000,000     =  ∛ (100 x 100 x 100)     =  100

But I think they want use to use exponents to solve the problem

1000^2/3         recall   1000 = 10^3   which is   10x10x10

replace 1000 with 10^3

so    

(10^3)^2/3               exponents multiple and divide  some rule as I recall

                                you look it up in your book or on your computer

                               

10^(3)(2)/(3)              the 3s divide to 1  leaving the 2 in the exponent

=    10^2    which is 10²       which is 100

 

6 0
3 years ago
Other questions:
  • 7. A random sample of size n is collected from a considerably larger population
    8·1 answer
  • Show that the curve x = 6 cos(t), y = 5 sin(t) cos(t) has two tangents at (0, 0) and find their equations.
    13·1 answer
  • Twelvetelephones have just been received at an authorized service center. Fourof these telephones are cellular, four are cordles
    10·2 answers
  • Shau-uen solved the equation 18.5 w + 6.5 w minus 2.8 w = 149.1. Her work is shown below.Step 118.5 w + 6.5 w minus 2.8 w = 149.
    13·2 answers
  • DNA molecules consist of chemically linked sequences of the bases adenine, guanine, cytosine and thymine, denoted A, G, C and T.
    14·1 answer
  • The manufacturer of widgets spends $5 to make each widget and sells them for $8. The manufacturer also has fixed costs each mont
    7·2 answers
  • Write the following expression as a function of a positive acute angle. cos 215
    10·1 answer
  • Please help due in 1 hour!
    5·1 answer
  • Hi guys I need help<br><br><br><br><br><br>please<br><br><br><br><br><br><br>​
    6·2 answers
  • write a slope-intercept equation for a line passing through the point (2,8) that is parallel to y=7/5x+7. Then weite a second eq
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!