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
Slav-nsk [51]
3 years ago
6

PLEASE HELP ME FAST!!!!!

Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0

Answer:

2

3x+1

2x-3

Step-by-step explanation:

You might be interested in
A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Portland. The stu
iVinArrow [24]

Answer:

-0.061 < P_1 -P_2< 0.025

Step-by-step explanation:

Give data:

n_1 = 350

n_2 =250

x_1 = 23

x_2 = 21

\hat{P} 1 = \frac{x_1}{n_1} = \frac{23}{350} = 0.066

\hat{P} 2 = \frac{x_2}{n_2} = \frac{21}{250} = 0.084

for 95% confidence interval

\alpha = 1 - 0.95 = 0.05 and \alpha/2 = 0.025

z_{\alpha/2} = 1.96  from standard z- table

confidence interval for P_1  and P_2 is

\hat{P} 1 - \hat{P} 2 \pm z_{\alpja/2} \sqrt{\frac{\hat{P} 1(1-\hat{P} 1)}{n_1} +\frac{\hat{P} 2(1-\hat{P} 2)}{n_2}}

(0.066 - 0.084) \pm 1.96 \sqrt{\frac{0.066(1-0.066)}{350} +\frac{0.084(1-0.084)}{250}}

-0.018 \pm 0.043

confidence interval is

-0.018 - 0.043 < P_1 -P_2

-0.061 < P_1 -P_2< 0.025

7 0
3 years ago
A rectangular park has sidewalks on two adjacent sides. If it takes John 60 steps to
Sergeeva-Olga [200]

Answer:

Length = 80 m and breadth = 60 m If one moves along the two adjacent sides, one covers 80+60 = 140 m. Diagonal of the rectangle = √ ( length^2 + breadth^2) ...

5 0
2 years ago
½ cups = how many pint
Trava [24]

Answer:

0.5 pints

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The measure if an exterior angle of a regular polygon is given below find the measure of an interior angle then find the number
zhuklara [117]

Answer:

The measure of the interior angle is 156°

The polygon has 15 sides

Step-by-step explanation:

<em>Let us revise some facts in a polygon</em>

  • The sum of the exterior angles of any polygon is 360°
  • At each vertex of a polygon, the exterior and interior angles formed a pair of linear angles (The sum of their measures is 180°)
  • A regular polygon has equal angles and equal sides

<em>In our question </em>

∵ The measure of an exterior angle of a regular polygon = 24°

∵ The sum of measures of the interior angle and exterior angle at

   a vertex of a polygon is 180°

∴ The measure of the interior angle = 180° - 24°

∴ The measure of the interior angle = 156°

∵ The sum of the exterior angles of any polygon is 360°

∵ The polygon is regular (all angles are equal in measures)

∴ The measure of each exterior angle = 360° ÷ n, where n the

   number of its angles or sides

∴ 24° = 360°/n

→ Multiply both sides by n

∴ 24n = 360

→ Divide both sides by 24

∴ n = 15

∴ The polygon has 15 sides

5 0
3 years ago
How do i do slope-intercepts
timama [110]

Answer:

To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Item 15 A bale of hay in the shape of a rectangular prism has a length of 4 feet, a width of 2 feet, and a height of 2 feet. A c
    12·1 answer
  • Find -x + 10 subtracted from 0
    11·2 answers
  • Please someone help me with my homework thanks​
    8·2 answers
  • You need 150g of flour for 12 cakes, how much flour do you need for 30 cakes?
    11·2 answers
  • The ratio of the heights of two similar prymaids is 3:2
    10·1 answer
  • Help been stuck on this for an hour
    7·2 answers
  • HELP ASP Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on labor. She then sel
    8·1 answer
  • A high school soccer team is going to Columbus to see a professional soccer game. A coordinate grid is superimposed on a highway
    12·1 answer
  • A city has a population of 350000 the population has decreased by 30% in the past ten years what was the population Of the city
    10·1 answer
  • A die was rolled 10 times and 2 appeared 4 times. What is the probability of getting 2? A. 20B. 4C. 10/4D. 4/10
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!