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
Anna71 [15]
4 years ago
9

Is 2^7 equal to 2 • 7? Explain.

Mathematics
1 answer:
Cerrena [4.2K]4 years ago
8 0
No. 2^7 means 2 to the power of 7. 2 •7 means 2 times 7
You might be interested in
IM BEGGING PLZ! I’ll mark brainliest! Plz!
Free_Kalibri [48]

Answer:

Step-by-step explanation:

SOHCAHTOA

Sine is opposite over hypotenuse

Cosine is adjacent over hypotenuse

Tangent is opposite over adjacent

In this context, opposite means the side opposite of the angle. Adjacent means the side that is touching the angle. And the hypotenuse is the longest side, which is usually visually obvious.

3.) tan(25) = x/31

Use a calculator for tan(25), then multiply both sides by 31 to get your x value.

x = 14.5

4.) cos(48) = 17/x

Use a calc to do 17/cos(48) to get the x value

x = 25.4

5.) sin(theta) = 17/18

Divide 17/18, then take the inverse sine of both sides with a calculator to get the theta value

theta = 70.8 degrees

6.) tan(theta) = 31/42

Divide 31/42, then take the inverse tangent of both sides with a calc.

theta = 36.4 degrees

7.) Your best bet is to draw a picture. For my case, Im going to imagine it. The angle is 35 degrees and the hypotenuse is 300 feet. The question is asking for the opposite of the angle. This calls for sine.

sin(35) = x/300

x = 172.1 feet

8 0
3 years ago
Help me for brainlist. please I really need it.
Andrej [43]

Answer:

1200..............................

3 0
3 years ago
Read 2 more answers
A normally distributed population has a mean of 250 pounds
Dima020 [189]

Answer: 0.9746

Step-by-step explanation:

Given : A normally distributed population has a mean of 250 pounds and a standard deviation of 10 pounds.

i.e. \mu=250 \sigma=10

Sample size : n= 20

Let \overline{x} sample mean values.

Then, the probability that this sample will have a mean value between 245  and 255 be

P(245

Hence , the probability that this sample will have a mean value between 245  and 255 is 0.9746 .

6 0
3 years ago
You are given a choice of taking the simple interest on $100,000 invested for 2 years at a rate of 3% or the interest on $100,00
valentinak56 [21]

Answer:

Step-by-step explanation:

the simple interest formula= principal* interest rate*time

simple interest : 100000*%2*2 years

simple interest= 4000 dollars

compound quarterly : A=principal(1+r/4)^t

since it is quarterly and have 4 quarters in a year, and 8 in two years.

compound quarterly: 100000(1+0.03/4)^8=106159.88

it is better to invest with compound interest because it add 6159 dollars in two years to the investment of 100000 dollars.

the difference between the interest: 6159.88-4000=2159.88

5 0
3 years ago
Danny solved the inequality - 8x > 56 and got x>-7. Is this correct and if not, what mistake did Danny
aniked [119]

Answer:

Danny did not reverse the symbol.

Hence, the correct answer is: x

Step-by-step explanation:

Given the inequality

- 8x > 56

We know that when we multiply both sides by -1, the 'inequality' gets reverse.

i.e.

\left(-8x\right)\left(-1\right)

8x

Divide both sides by 8

\frac{8x}{8}

x

Therefore, Danny did not reverse the symbol.

Hence, the correct answer is: x

7 0
3 years ago
Other questions:
  • HELP FAST PLEASE!!!!!! URGENT
    14·1 answer
  • 11/21 as a decimal and a percent
    11·1 answer
  • If m(x)=x 5/x-1 and n(x) = x – 3, which function has the same domain as (m*n)(x)
    15·1 answer
  • A principal of $4700 was invested at 4.75% interest, compounded annually.
    14·1 answer
  • The angle measurements in the diagram are represented by the following expressions.
    15·1 answer
  • Alexander and lan can each wash a car and vacuum its interior in 2 hours. Anjo needs
    7·2 answers
  • PLEASE HELP! I GIVE BRAINLIEST!! What are the correct values for the missing boxes in the ratio table in number 4 above?
    14·2 answers
  • What is 1/3 + 1/5 + 1/2
    8·2 answers
  • Write the product using exponents.<br><br> 6.4.6.4.6.4.6.4.b.b.b
    15·1 answer
  • A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cook
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!