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
arlik [135]
3 years ago
9

Which of the following are mathematical sentences?

Mathematics
1 answer:
ki77a [65]3 years ago
6 0
A and D but hold on
You might be interested in
The circumference of a circle measures 11.27 pi feet. What is the measure of the diameter of the circle?
scoray [572]
C=11.27π feet
Diameter=11.27 feet. Hope it help!
4 0
3 years ago
dentify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine her a
Bess [88]

Answer:

The sampling method used is a stratified sampling method

Step-by-step explanation:

sampling is the selection of a predetermined representative subpopulation from a larger population, to estimate the characteristics of the whole population.

Stratified sampling: Here, the total population are divided into subcategories (strata) before sampling is done. The strata are formed based on some common characteristics. In our example, the times of the day (morning, afternoon and evening) has widely varying atmospheric conditions which will add biases to the measurement of air quality. For example, the air in the morning if compared to the afternoon in an industrial area may be purer because of minimal industrial activity, hence effective comparison will be made by stratification.

6 0
3 years ago
The difference of twice a number and 2 is -21
Anna35 [415]

Answer:

2x-2= -21

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=z%5E%7B7%7D%3D128i" id="TexFormula1" title="z^{7}=128i" alt="z^{7}=128i" align="absmiddle" cla
abruzzese [7]

If <em>z</em> ⁷ = 128<em>i</em>, then there are 7 complex numbers <em>z</em> that satisfy this equation.

z^7 = 128i = 2^7i = 2^7e^{i\frac\pi2}

\implies z=\sqrt[7]{2^7} e^{i\frac17\left(\frac\pi2+2n\pi\right)}

(where <em>n</em> = 0, 1, 2, …, 6)

\implies z = 2 e^{i\left(\frac\pi{14}+\frac{2n\pi}7\right)}

\displaystyle\implies z = 2 \left(\cos\left(\frac\pi{14}+\frac{2n\pi}7\right)+i\sin\left(\frac\pi{14}+\frac{2n\pi}7\right)\right)

3 0
3 years ago
Which of the following cannot be the probablity of an event?
ipn [44]

Answer:

Hello There!!

Step-by-step explanation:

I believe the answer is 4,9,0-0.7,1.31,4,9 and 9.The probability of an event if from 0 to 1.

hope this helps,have a great day!!

~Pinky~

8 0
3 years ago
Other questions:
  • What geometric term describes a corner f a living room
    8·1 answer
  • the train traveled at an average speed of 48 miles per hour for the first 2 hours and at 60 miles an hour for the next hours. Wh
    8·1 answer
  • What is 116325 rounded to the nearest hundred thousand?
    14·2 answers
  • Really need help pls and thank u!
    5·1 answer
  • 12 for 3 books ; 28 for 7
    12·1 answer
  • Regroup through thousands
    15·2 answers
  • Convert 12 1/2% into a decimal (It isn't 12.50)<br>Convert 12 1/2% into a fraction (It isn't 25/2)
    11·1 answer
  • 42÷2 1/3 <br><br> And 6 2/9÷5 5/6
    14·1 answer
  • Which of these points lies on the graph of the equation x − 12 = y?
    11·1 answer
  • What is the circumference of the circle? 11 m​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!