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
stira [4]
3 years ago
13

I NEED HELP! PLEASE!

Mathematics
2 answers:
3241004551 [841]3 years ago
7 0

Answer:

1. -16

2. 1 (12 x 0 = 0 but its not the right)

3. 43

4.80

5. 5 4 (5 x 5 x 5 x 5 = 625)

IgorC [24]3 years ago
5 0

Answer:-16 and 1

Step-by-step explanation:

You might be interested in
Simplify the complex fraction 7/10÷-2/5
enyata [817]

\bf \cfrac{7}{10}\div \cfrac{-2}{5}\implies \cfrac{7}{\underset{2}{~~\begin{matrix} 10 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{-2}\implies -\cfrac{7}{4}

8 0
3 years ago
I NEED HELP ASAP!
vladimir2022 [97]

Using a geometric series, it is found that he swims 1897 yards in the first week.

In a geometric series, the quotient between consecutive terms is always the same, and it is called common ratio q.

The general equation of a geometric series is given by:

a_n = a_1q^{n-1}

In which a_1 is the first term.

The sum of the first n terms is given by:

S_{n} = \frac{a_1(1 - q^n)}{1 - q}

In this problem:

  • 200 yards on the first day, thus a_1 = 200.
  • Each day, the distance increases by 10%, since 100% + 10% = 110% = 1.1, q = 1.1.
  • First week is first 7 days, thus n = 7

Then:

S_{n} = \frac{a_1(1 - q^n)}{1 - q}

S_{7} = \frac{200(1 - 1.1^7)}{1 - 1.1}

S_{7} = 1897

He swims 1897 yards in the first week.

A similar problem is given at brainly.com/question/23711475

8 0
2 years ago
AYO PLEASE HELP ASAP :(
arlik [135]

Answer:

573440 kg

Step-by-step explanation:

Given,

Density of copper ( D ) = 8960 kg / m³

Length of cube ( l ) = 4 meters

To find : Mass of solid cube of copper ( m )

Formula : -

Volume of cube = l³

Volume of cube

= l³

= 4³

= 4 x 4 x 4

= 64 meter³

So,

V = 64 meter³

Formula : -

D = m / V

m = D x V

   = 8960 x 64

m = 573440 kg

Hence,

The mass of a solid cube of copper is <u>573440</u> kg.

3 0
1 year ago
At what values of x does f(x) = x^3 - 2x^2 -4x+1 satisfy the mean value theorwm on [0,1]
denis-greek [22]

Answer:

x=1/3

Step-by-step explanation:

A function f is given as

f(x) = x^3-2x^2-4x+1 in the interval  [0,1]

This function f being an algebraic polynomial is continuous in the interval [0,1] and also f is differntiable in the open interval (0,1)

Hence mean value theorem applies for f in the given interval

f(1) = 1-2-4+1 = -4\\f(0) = 1

The value

\frac{f(1)-f(0)}{1-0} =\frac{-4-1}{1} =-5

Find derivative for f

f'(x) = 3x^2-4x-4

Equate this to -5 to check mean value theorem

3x^2-4x-4=-5\\3x^2-4x+1=0\\\\(x-1)(3x-1) =0\\x= 1/3 : x = 1

We find that 1/3 lies inside the interval (0,1)

4 0
3 years ago
Pow Research center is a nonpartisan polling organization that provides information about issues, attitudes, and trends shaping
Brilliant_brown [7]

Remember that the difference between census and a sample survey is that in a census you take all the people of population in consideration in the study, and in the sample survey you take a part of that population in consideration to survey.

SO here if you check the problem it says that "in a recent poll, Pew reserchers found that 47% OF AMERICAN ADULT RESPONDENTS"

that is the population of the study that you want to focus, but there are a billion of american adult in US right? so its impossible that this company Pow Research made a census if you consider that a billion of people in US is almost infinite number for a company with a finite number of employees.

Also remember that a company has a budget to consider every month or every year, so to make a census or a sample survey it takes time and money, just to survey 10 people in a streeth of US cost money so if you want to reduce cost you might need to do a sample survey instead of a census.

5 0
3 years ago
Other questions:
  • HELP ME PLEASEEEEEEEEEE
    9·1 answer
  • Select the factored form of each expression.
    15·2 answers
  • Which two pairs of points lie on perpendicular lines?
    14·1 answer
  • Micah is 6 years younger than Raul.
    14·1 answer
  • 1. What is an equation of the line with slope 6 and y-intercept -4? Which equation represents the line shown?
    12·2 answers
  • Operations &amp; Algebraic Thinking - 1/10 e) How many times smaller is a group of 11 marbles than a group of 88 marbles?​
    9·1 answer
  • Point B has coordinates ​(3​,2​). The​ x-coordinate of point A is -1. The distance between point A and point B is 5 units. What
    14·2 answers
  • What is the value of<br> 6.3 X 105<br> 1.2 x 103
    11·2 answers
  • During an 8-hour shift, Sophia can make<br> 24 sweaters.
    15·1 answer
  • Equivalent expressions: negative numbers &amp; distribution
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!