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
slavikrds [6]
3 years ago
13

Help plz i am confusion plzzzz

Mathematics
2 answers:
zmey [24]3 years ago
8 0

Answer:

Do C and D (Option 3 + 4)

frosja888 [35]3 years ago
6 0
D, -4x+5=-4x-5 is no Solution because you do +4x on both which is then 5=-5 which is false so no solution
You might be interested in
Sarah read her book for 2 1/8 hours on Monday, 1 1/2 hours on Wednesday, and 1 3/4 hours on Friday. How many hours did she read
Bezzdna [24]

Answer:

Step-by-step explanation:

Add the fractions by finding the greatest common factor of them all. if not any break up into 2 then add the other fraction to i

3 0
3 years ago
ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS
Ne4ueva [31]
B. Situation A
C. Situation B

Explanation: Situation A has more students on the higher numbers.

Second Explanation: Situation B has numbers on the 70.
3 0
3 years ago
A true/false test has 40 questions. Suppose a passing grade is 30 or more correct answers. Test the claim that a student knows m
Angelina_Jolie [31]

Answer:

z≈3.16

p≈0.001

we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

Step-by-step explanation:

As a result of step 2, we can assume normal distribution for the null hypothesis

<em>step 3:</em>

z statistic is computed as follows:

z=\frac{X-M}{\frac{\sqrt{p*(1-p)} }{\sqrt{N} } } where

  • X is the proportion of correct answers in the test (\frac{30}{40})
  • M is the expected proportion of correct answers according to the null hypothesis (0.5)
  • p is the probability of correct answer (0.5)
  • N is the total number of questions in the test (40)

z=\frac{0.75-0.50}{\frac{\sqrt{0.5*(0.5)} }{\sqrt{40} } } ≈ 3.16

And corresponding p value for the z-statistic is p≈0.001.

Since p<0.05, we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

7 0
3 years ago
Jenny determined 18% of the students in school take their lunch. There are 2000 students in the school. How many students take t
MAVERICK [17]

Answer:

111 students because they like to drink good water

Step-by-step explanation:

BLAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

4 0
3 years ago
Read 2 more answers
Next Activity
astra-53 [7]
700%10=70

70•25=1,750 Calories

Brainliest would be cool, hope this helped
7 0
3 years ago
Other questions:
  • In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic.
    15·1 answer
  • What is x^3-x^2-8x+12 in factored form?
    11·1 answer
  • Help me please ASAP
    12·1 answer
  • If your profit in a deal was 15% and you got rupees 120 the deal was worth
    11·2 answers
  • 9 in.<br> 6 in.<br> the volume of the party <br> closest. In cubic inches
    8·1 answer
  • Find the transformation matrix that rotates a rectangular coordinate system through an angle of 120° (counterclockwise) about an
    5·1 answer
  • The formula I = p r t gives the amount of simple interest (I) earned by investing principle ( p ) for rate ( r ) over a period o
    5·1 answer
  • Rewrite the equation in slope intercept form. 4x + 5y = 8
    13·2 answers
  • Pls help me pass calculus :’)
    5·1 answer
  • Consider the diagram.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!