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
s2008m [1.1K]
3 years ago
5

What is the solution to= 6​

Mathematics
2 answers:
Elan Coil [88]3 years ago
6 0

Answer:

Answer: A. x + (4x - 85) = 90

In this case, the two angles are complementary. This means they add up to 90°. Therefore, the equation is x + (4x - 85) = 90.

Step-by-step explanation:

Volgvan3 years ago
4 0

Answer: y=18

Step-by-step explanation:

(y/6) * (3) = (6) * (3) = y=18

You might be interested in
for a class project, a political science student at a large university wants to estimate the percent of students that are regist
nekit [7.7K]

Answer:

90% confidence interval for the true percent of students that are registered voters is [0.56 , 0.64].

Step-by-step explanation:

We are given that for a class project, a political science student at a large university wants to estimate the percent of students that are registered voters.

He surveys 500 students and finds that 300 are registered voters.

Firstly, the pivotal quantity for 90% confidence interval for the true proportion is given by;

                         P.Q. = \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of students who are registered voters = \frac{300}{500} = 0.60

           n = sample of students = 500

           p =  true percent of students

<em>Here for constructing 90% confidence interval we have used One-sample z proportion test statistics.</em>

So, 90% confidence interval for the true proportion, p is ;

P(-1.6449 < N(0,1) < 1.6449) = 0.90  {As the critical value of z at 5%

                                            level of significance are -1.6449 & 1.6449}  

P(-1.6449 < \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } < 1.6449) = 0.90

P( -1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } < {\hat p-p} < 1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } ) = 0.90

P( \hat p-1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } < p < \hat p+1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } ) = 0.90

<u>90% confidence interval for p</u> =[\hat p-1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } , \hat p+1.6449 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }]

 = [ 0.60-1.6449 \times {\sqrt{\frac{0.60(1-0.60)}{500} } } , 0.60+1.6449 \times {\sqrt{\frac{0.60(1-0.60)}{500} } } ]

 = [0.56 , 0.64]

Therefore, 90% confidence interval for the true percent of students that are registered voters is [0.56 , 0.64].

Interpretation of the above confidence interval is that we are 90% confident that the true percent of students that are registered voters will lie between 0.56 and 0.64.

6 0
3 years ago
Can someone help me with math I need help I will attempt to give y’all help too!
xxMikexx [17]
Answer is 10
Scale factor is 2.5 (30/12)
So you have to do 4 multiplied by 2.5 to get x on the bigger shape.
3 0
2 years ago
Read 2 more answers
A pair of fair dice is rolled and the sum of the numbers is noted. Determine the probability that one die resulted in a 5 given
DanielleElmas [232]
     Pairs whose sum is 8:
     2 + 6,  3 + 5,  4 + 4,  5 + 3,  6 + 2  ( there are 5 pairs )
     Pairs when one die is 5: 3 + 5,  5 + 3 ( 2 pairs )
     P ( A ) = 2 / 5 = 0.4
     Answer: The probability that one die resulted in a 5 given that a sum is 8 is 0.4 .
3 0
3 years ago
Abby filled her goodie bags with 4 cookies and 3 candy bars and spent a total of $10.25 per bag. Marissa filled her goodie bags
Leona [35]

Answer: See explanation

Step-by-step explanation:

The information given in the question can be presented into an equation as:

4x + 3y = 10.25 ...... equation i

2x + 7y = 14.75 ........ equation ii

Multiply equation i by 2

Multiply equation ii by 4

8x + 6y = 20.50 ...... equation iii

8x + 28y = 59 ...... equation iv

Subtract equation iii from iv

22y = 39.50

y = 39.50/22

y = 1.80

Each candy bar cost $1.80

From equation i

4x + 3y = 10.25

4x + 3(1.80) = 10.25

4x + 5.40 = 10.25

4x = 10.25 - 5.40

4x = 4.85

x = 4.85/4

x = 1.2125

Each cookie cost $1.2125

4 0
2 years ago
What is the probability that a subject would guess more than 20 correct in a series of 36 trials?
Dmitriy789 [7]

the probability that a subject would guess more than 20 correct in a series of 36 trials

p(X > 20.5)

= p(z > 0.83)

= 0.2033

Probability is a branch of mathematics that quantifies the likelihood of an event occurring or the likelihood of a statement being true. Probability is a number between 0 and 1, with 0 generally indicating impossibility and 1 indicating certainty. that an event will occur.

A simple example is tossing a fair (unbiased) coin. Since the coin is fair, the two outcomes (heads and tails) are equally likely. The probability of heads is the same as the probability of tails. Since no other outcome is possible, the probability of heads or tails is 1/2 (also written as 0.5 or 50%).

Learn more about probability here

brainly.com/question/251701

#SPJ4

8 0
2 years ago
Other questions:
  • A baker made 260 cupcakes last week of 55% were chocolate how many cupcakes were chocolate​
    14·1 answer
  • Solve for f<br><br> d(v)=2.15v^2 / 64.4f
    15·1 answer
  • Which systems of equations have infinite solutions 2x+5y=31 6x-y=13 or 2x+y=10 -6x=3y+7 or y=14-2x 6x+3y=42 or y=13-2x 4x-3y=-19
    10·1 answer
  • (7 4/9 −8)∙3.6–1.6∙( 1/8 − 3/4 )+1 2/5 ÷(−0.35)
    7·2 answers
  • Melinda spend $14.25 on school supplies Dr spend $2.30 more than Melinda
    9·2 answers
  • a box contains 'n' quarters and some dimes. the ratio of quarters to dimes is 1:2. write an expression for the total number of m
    5·1 answer
  • PLEASE HELP QUICK!!!!!! WILL GIVE BRAINIEST!!!!!! Don’t answer if you don’t know it please.
    11·1 answer
  • Select each square number.<br><br> 25<br> 189<br> 135<br> 1<br> 114
    9·1 answer
  • Is 3(b+c) equivalent expressions?<br><br>A. True <br><br>B. False
    6·2 answers
  • Write an equation of a parabola that has two x-intercepts and a minimum vertex.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!