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
labwork [276]
4 years ago
10

the headline reporting the results of a poll​ stated, "Majority of Adults at Personal Best in the​ Morning." The results indicat

ed that a survey of 1400 adults resulted in 55​% stating they were at their personal best in the morning. The​ poll's results were reported with a margin of error of 4​%. Explain why the​ poll's headline is accurate.
Mathematics
1 answer:
serious [3.7K]4 years ago
7 0

Answer:

D

Step-by-step explanation:

You might be interested in
Please help h get brainleist and points
Oksanka [162]

In order:

72 x 8 = 576

47 x 7 = 329

(7 x 3) x 7

21 x 7 = 147

5 0
3 years ago
Which category of galaxy does not have a distinctive shape
sweet [91]
I believe an irregular galaxy is what it's called
6 0
3 years ago
in a square garden plot (with an area of 400 sq ft)deer fencing priced at $1.50 per foot is to be installed around the plot. if
mina [271]

We have a square garden of 400 square foot.

The area of a square is:

A=x^2

where x: side length.

In this case:

\begin{gathered} A=400=x^2 \\ x=\sqrt[]{400}=20\text{ ft} \end{gathered}

The perimeter of the square is the sum of the lengths of the sides of the square. As they are all equal, we can write:

P=4x=4\cdot20=80\text{ ft}

The fencing is priced at $1.50 per foot. If we add the 7% sales tax to this price we get:

C=1.50\cdot(1+0.07)=1.50\cdot1.07=1.605\text{ \$/ft}

The fencing will be installed in all the perimeter (80 ft).

We can calculate the total cost by multiplying the sales price ($1.605 per foot) and the perimeter (80 ft):

F=C\cdot P=1.605\frac{\text{\$}}{\text{ft}}\cdot80\text{ ft}=\$128.40

Answer: the fencing will cost a total of $128.40

8 0
1 year ago
A question paper contains 10 questions, 5 marks are awarded for every correct answer and (-2) marks for every incorrect answer a
Mila [183]

Answer:

correct = (5 \times 5) = 25 \: marks \\ incorrect = ( - 2 \times 5) =  - 10 \: marks \\ unattempted = 0 \\ total = (25 - 10) \\  = 15 \: marks

3 0
3 years ago
Does the given equation of line form parallel lines or not
malfutka [58]

k:y=m_1x+b_1;\ l:y=m_2x+b_2\\\\k\ \perp\ l\iff m_1\cdot m_2=-1\\\\k\ ||\ l\iff m_1=m_2

k:x+4y=10\ \ \ |-x\\\\4y=-x+10\ \ \ \ |:4\\\\y=-\dfrac{1}{4}x+\dfrac{10}{4}\to m_1=-\dfrac{1}{4}\\\\l:3x-2y=5\ \ \ \ |-3x\\\\-2y=-3x+5\ \ \ \ |:(-2)\\\\y=\dfrac{3}{2}x-\dfrac{5}{2}\to m_2=\dfrac{3}{2}

m_1\neq m_2\to\text{ no parallel}\\\\m_1\cdot m_2=-\dfrac{1}{4}\cdot\dfrac{3}{2}\neq-1\to\text{ no perpendicular}

Answer: NOT PARALLEL

5 0
4 years ago
Other questions:
  • Write 7/12 as a decimal.
    12·2 answers
  • There are 26 prize tickets in a bowl,labeled A to Z. What is the probability that a prize ticket with a vowel will be chosen,not
    14·1 answer
  • Solve by substitution-5x+4y=22 x - 3y = 0A) No solution.
    5·1 answer
  • What are the fractions that are between 1/2 and a 1/3?
    12·1 answer
  • Which element of poetry does the poet use to give structure and rhythm to "The Turtle”?
    5·2 answers
  • PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
    11·2 answers
  • Which expression best represents all solutions of x for the equation cot x = –1.25, where k is any integer?
    5·1 answer
  • How many elements does this matrix have?
    10·1 answer
  • Please answer 2 only. Answers would be appreciated :)
    10·2 answers
  • Someone plz help me :(<br> A or B?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!