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
Dvinal [7]
2 years ago
11

The quadratic formula is​

Mathematics
1 answer:
Rufina [12.5K]2 years ago
3 0
I couldn’t make the sign with plus and minus so took a picture.

You might be interested in
Given the table below for selected values of f(x), use 6 left rectangles to estimate the value of
S_A_V [24]

Answer:

Step-by-step explanation:

Given is a table of x, f(x) as below

x             1   3   4   6   7  9  10

f(x)         4   8  6  10  10  12  16

Mid pt      6   7   8  10   11  14

width of

interval    2   1     2   1    2    1

dA1         12   7   16  10  22  14

area = area of all rectangles= 81 sq units.

8 0
3 years ago
Math math pls help pls
lord [1]

Answer:

30/5 than simplyply it to 6 0/5

3 0
2 years ago
Pls dont guess on it
yuradex [85]

Answer:

2(8a + 8)

Step-by-step explanation:

The easiest way to do this is to substitute <em>a</em> for a number. For example, let's just make things easy and make <em>a </em> = 1.

So, if a = 1, the expression 16a + 8 would be 16(1) + 8 = 24.

Let's find all the expressions that would also equal 24 if <em>a = </em>24.

Plug in 1 for <em>a</em> in each of the equations. You will find that 2(8a + 8) will not equal 24 if <em>a </em>equals 1.

2(8a + 8)

2(8(1) + 8

2(8 + 8)

2(16)

32

4 0
2 years ago
a pharmacist believes the proportion of prescriptions that are antibiotics is decreasing. the pharmacist would like to test the
Lunna [17]

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

What is the null hypothesis?

Conjectures used in statistical tests, which are formal techniques for drawing conclusions or making judgments based on data, include the null hypothesis and the alternative hypothesis. The hypotheses, which are based on a sample of the population, are suppositions regarding a statistical model of the population. The tests are essential components of statistical inference and are frequently used to distinguish between statistical noise and scientific claims when interpreting experimental data in science.

"The null hypothesis is the proposition under investigation in a statistical significance test. The significance test is intended to determine how strong the evidence is against the null hypothesis. The null hypothesis is typically a claim that there is "no effect" or "no difference.H₀ is a common way to represent it.

The alternative hypothesis is the assertion that is being compared against the null hypothesis. Two symbols are H₁ and Hₐ.

Calculation:

Here H₀:  P=0.52

  H₁: P<0.52

Test statistic, Z = -1.89

critical value = -1.65

Decision rule: If zZ< -1.65 we reject H₀ and vice-versa

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

Learn more about the null hypothesis here:

brainly.com/question/13776238

#SPJ4

Disclaimer: The question was given incorrectly on the portal. Here is the correct question

Question:

6 0
1 year ago
Skylar mowed 16 lawns in 12 hours. What was her rate of mowing in lawns per hour?
erik [133]
16 / 12 = 1.3333
Answer: she mowed 1 1/3 lawns per hour.
8 0
3 years ago
Other questions:
  • What is the equation of the inverse of g(x)=2/5x -1
    6·1 answer
  • jasmine buys 21 cans of dog food. She gives 1/3 of the cans to her neighbor and she keeps the rest of the cans for her puppy. Ja
    6·1 answer
  • I need help finding the surface area for 11
    6·1 answer
  • Melissa exercises for 20 minutes every day. She decides to increase her daily exercise time by 5 minutes each week. However, acc
    5·1 answer
  • Sally had 1/2 of a candy bar. She gave half of what she had to Frank. Frank gave half of HIS piece to Peter. How much of a candy
    8·1 answer
  • How many millimeters are there in two kilometers
    7·2 answers
  • I am Desperate for answer ​
    6·1 answer
  • Y = 5x – 4<br> y = x2 + 4x – 16
    9·1 answer
  • 5 + 0.55x = 10 + 0.75x pls help and explain ​
    15·2 answers
  • Write (x^2) ^4without exponents
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!