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
Rainbow [258]
3 years ago
5

Scientists are measuring the thickness of ice on a large lake. When they first measure the ice, it is 3.1 inches thick. Three we

eks later the ice was measured to be 5.5 inches thick.
Mathematics
1 answer:
yaroslaw [1]3 years ago
3 0

Answer:

Step-by-step explanation:

What is the question?

Amount of change = 5.5-3.1 = 2.4 inches

Percentage change = 2.4/3.1 ≈ 77.4% increase

You might be interested in
The Zoo charges $14 per visit for non-members. To become a member of the Zoo you will be charged a $36 one-time fee $2 per visit
AleksandrR [38]

Answer:

7

Step-by-step explanation:

You divide the number of visits and the price. 14÷2=7

7 0
3 years ago
HELP someone please!!!! i dont understand
ad-work [718]

Answer:

x = 65.03°

Step-by-step explanation:

To solve for x, we have to apply trigonometric ratio.

Recall: SOH CAH TOA

From the diagram, we know the following:

Reference angle = x

Hypotenuse = 45

Adjacent = 19

Since we know the Hyp and Adj, we would apply CAH, which is:

Cos x = Adj/Hyp

Plug in the values

cos(x) = \frac{19}{45}

x = cos^{-}(\frac{19}{45})

x = 65.0250346°

x = 65.03° (nearest hundredth)

4 0
2 years ago
The quartiles of any distribution are the values with cumulative proportions 0.25 and 0.75. What are the quartiles of the standa
choli [55]
\mathbb P(X\le Q_1)=F_X(Q_1)=0.25\implies Q_1={F_X}^{-1}(0.25)\approx-0.6745

where F_X(x) is the CDF for X\sim\mathcal N(0,1).

By symmetry of the distribution, you then have

Q_3=-Q_1\approx0.6745
6 0
3 years ago
Find the x-intercept of the function f(x) = a^x + 1 - 1.
babymother [125]

I am not certain of what you wrote for the function but will assume that is likely exponential function or quadratic function.

First, (quadratic function) To solve this, you must know the quadratic formula. The x-intercept is value(s) that has the output value(y) of 0.

If the vertex of the quadratic function of (0,0), there is only one x-intercept. The number and value of the x-intercept depends on the slope and vertical displacement.

Second, (exponential function) note that there is no x-intercept. For instance, if a is 2, is there such value y that 2^y is 0? The smallest exponential value that is an integer is 1. Even broadening the limit to rational numbers, no such exponential value can have the result of 0. Therefore, in the basic form of exponential function, there is no x-intercept.

4 0
3 years ago
A bag is filled with green and blue marbles. There are 125 marbles in the bag. If there are 29 more green
ValentinkaMS [17]

Answer:

89 green marbles and 46 blue marbles

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • A cola company wants to test their cola against their biggest competitor's cola. They decide to randomly sample 150 people. The
    5·1 answer
  • Jason is cutting a roll of sausage into pieces that are 1/2 inches thifk if the roll is 6 inchew long how many pieces of sausage
    15·1 answer
  • find three consecutive even intergers such that the sum of twice the smallest and 4 times the largest is 304. Please help
    5·1 answer
  • Solve for c: b/c =a<br>​
    8·1 answer
  • What are the exact values of sin theta cos theta tan theta if (3,-4) is a point on the terminal side of theta?
    12·1 answer
  • Function machine need help
    15·2 answers
  • A large bottle of juice contains 500 ml a This use medium bottle contained 70% as much juice as the large bottle how many millil
    13·1 answer
  • Henry is making a recipe for biscuits.A recipe calls for 5/10 kilogram flour and 9/10 kilogram sugar.If henry measures correctly
    10·1 answer
  • Find the exact value of the expression: -6 3/5 - (-7 4/15) + 2 1/5<br> plzzzzzzzzz
    15·1 answer
  • I need the answer please help me
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!