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
Vlad [161]
3 years ago
5

3.) What must be the value of b to make the statement true?

Mathematics
1 answer:
cricket20 [7]3 years ago
7 0
Answer= 7
Explanation: combine all like numbers
5-b+4-2=0
5-2+4=7
7-b=0
Then you can tell the answer is 7 because that is the only thing that can replace b and equal 0
You might be interested in
a trapezoid has parallel sides of length 26 mm and 44 mm. its other sides measure 10 mm and 17 mm. what is the length of the bim
kirill115 [55]

Answer:

35 mm.

Step-by-step explanation:

That would be (26 + 44)/2

= 70/2

= 35 mm.

5 0
3 years ago
78.84 is what percent of 292?<br> Pleasee
nignag [31]

Answer:

230.2128. Im pretty sure

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A poll of 1,000 randomly selected registered voters was taken and 680 responded that they favor candidate X for mayor (p 1 = 0.6
Zielflug [23.3K]

Answer:

The interval (-0.0199, 0.0510) represents the region of values where the true difference (in population terms now) between the initial proportion of registered voters that favour candidate X and the proportion of registered voters that favour candidate X just before election can take on with a confidence level of 90%.

Step-by-step explanation:

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence. It is usually obtained from the sample.

p₁ represents the proportion of registered voters that favour candidate X in the initial poll, way before the election.

p₂ represents the proportion of registered voters that favour candidate X in the poll just before the election.

So, for this question the confidence interval for the true difference between the population proportion of registered voters that favour candidate X way before the elections and the population proportion that favour candidate X just before the election lies within (-0.0199, 0.0510) with a confidence interval of 90%.

Confidence interval is calculated mathematically as thus:

Confidence Interval = (Difference in Sample proportion) ± (Margin of error)

Margin of Error is the width of the confidence interval about the difference in the two sample proportions.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value = 1.645 (obtained from the z-tables because the sample size is large enough to ignore that information about the population standard deviation isn't given and t-critical value approximates z-critical value)

Hope this Helps!!!

4 0
3 years ago
How many dominos are needed to complete the triangle?
solong [7]

Only 3 is needed

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
One last stop before you head home. You and your friends are worn out, but you can’t help but stop for a candy apple to eat on t
Goshia [24]
The best deal would be 5 apples for 6.25

Hope this helps

Have a great day/night

Feel free to ask any questions
5 0
2 years ago
Other questions:
  • Find the slope of the line through p and q. p(0, 0), q(10, 8)
    7·1 answer
  • An airplane is heading due north at 800 km h when it encounters a wind from the northeast at 100km h, what is the ground velocit
    13·1 answer
  • What is the mode of 23,95,100,23,100,100
    7·2 answers
  • What is the percent decrease from 120% to 90%
    5·1 answer
  • The place to the left of the tens place
    11·2 answers
  • Using the information given, select the statement that can deduce the line segments to be parallel. If there are none, then sele
    7·1 answer
  • How to solve the first and second question?
    11·1 answer
  • Please help me! Determine the area
    8·1 answer
  • Write a graph an inequality to represent each situation:the temperature today will be at least 10 degrees
    10·1 answer
  • What is the product 3kk1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!