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
Molodets [167]
3 years ago
13

Can you please help me i really need help.

Mathematics
1 answer:
jolli1 [7]3 years ago
5 0
I am pretty sure it is C
You might be interested in
Help, Please! I really need this done right Carlos is analyzing the results of an experiment on two groups of mice in which he c
Allushta [10]
Given:
difference in the mean weight gain is 0.60 grams
standard deviation of the difference in sample mean is 0.305

68% confidence interval for the population mean difference is a) 0.305

0.60 <u>+</u> 1 * 0.305
0.60 + 0.305 = 0.905
0.60 - 0.305 = 0.295

95% confidence interval for the population mean difference is c) 0.61

0.60 <u>+</u> 2 * 0.305
0.60 + 0.61 = 1.21
0.60 - 0.61 = -0.01
7 0
3 years ago
What is the slope for y=0.5x+10
laila [671]

Answer: the answer is 0.5

Step-by-step explanation:

Y=mx+b mx= slope b= y intercept

5 0
2 years ago
Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
What is the standard form equation of the line shown below?
aivan3 [116]
Standard form of an equation is ax + by = c, which in this case is 5x + 3y = 14, or B.
3 0
2 years ago
Read 2 more answers
Helena wants to paint a box in the shape of a cube with sides that are 18 inches long. what is the surface area that Helena will
yan [13]

Answer:

1944 Inches Squared

Step-by-step explanation:

Surface area Formula for a Cube:

A = 6a^2

The "edge", which is also the side, is 18 inches.

a = 18

Solve the formula.

A= 6a^2 = 6(18)^2 = 6 * 18^2\\18^2 = 324\\324 * 6 = 1944\\A=1944

The cube's surface area should be 1944 square inches.

5 0
2 years ago
Other questions:
  • In the diagram below AC is perpendicular to BD find x show all work
    5·2 answers
  • WRITING IN MATH
    5·1 answer
  • Willa and Jack are playing a game. Willa's score is 1 point. Jack's score is -3 points. Which
    15·2 answers
  • SERIOUSLY NEED HELP WITH THIS QUESTION.
    7·2 answers
  • Hey can you please help me posted picture of question
    11·2 answers
  • The average score on a biology test was 72.1 write the average score using a fraction
    9·1 answer
  • 6. You have $20.00 to spend. How many different food/drink combinations could you have?
    6·1 answer
  • Cliff is trying to make a set of parallel lines in a coordinate plane intersect at a perpendicular angle. Which strategy would w
    7·1 answer
  • WILL GIVE BRAINLIST BUT PLEASEEEEEEEEEEEE HELP MEEEEEEEEEEHHHHHHHHHHHHH
    12·2 answers
  • Answer please... 10 points
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!