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
tankabanditka [31]
3 years ago
6

The coldest day in ohio clocked in at 40 below zero. In one day though the temperature changed to 20 below zero How much tempera

ture change was there that day
Mathematics
1 answer:
Zolol [24]3 years ago
6 0
40 below 0 would be -40 and 20 below 0 would be -20°. So there’s a change of (increase of) 20° that day. It would also make sense if you drew a number line. You would see the interval between -40 and -20 is 20.
You might be interested in
Solve the given equation over the interval [0, 2π): cot^2 x − cot x.
AlekseyPX
45^o,  90^o,  225^o,  270^o
\frac{ \pi }{4} ,   \frac{ \pi }{2} ,   \frac{5 \pi }{4} ,   \frac{3 \pi }{2}
8 0
3 years ago
A ferritin test is a popular test to measure a person’s current iron stores. in women, ferritin is normally distributed with a m
MArishka [77]
Given:
μ = 89 ng/ml, population mean
σ = 23 ng/ml, population standard deviation

Random variable, x = 100
To test P(x < 100), calculate the z-score.
 z = (x-μ)/σ = (100 - 89)/23 = 0.4783

From standard tables, obtain
P(x < 100) = 0.6838 = 68.4%

Answer: 68.4%
7 0
3 years ago
The length of a rectangle picture frame is 2 centimeters more than twice it’s width. If the area of the frame is 364 square cent
sergeinik [125]

Answer:

Length:28 cm

Width: 13 cm

Step-by-step explanation:

Let

x ---> the length of a rectangle picture frame

y ---> the width of a rectangle picture frame

we know that

The area of a rectangle picture frame is equal to

A=xy

we have

A=364\ cm^2

so

364=xy ----> equation A

The length of a rectangle picture frame is 2 centimeters more than twice it’s width

so

x=2y+2 ---> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (28,13)

see the attached figure

therefore

Length:28 cm

Width: 13 cm

5 0
3 years ago
The school has two separate buildings, one is shaped
Umnica [9.8K]

Answer:

250 = triangle

90 = rhombus

(i think, its all i know)

Step-by-step explanation:

just use 1/2 x b x h for triangles

and A = l x w for rectangles

5 0
3 years ago
Manuel bought a balloon (that is a perfect sphere) with a radius of 2 \text{ cm}2 cm2, space, c, m. He wanted his balloon to be
jonny [76]
The original volume of the balloon is given by:
 V1 = (4/3) * (pi) * (r ^ 3)
 Where,
 r: radius of the sphere.
 Substituting values:
 V1 = (4/3) * (pi) * (1 ^ 3)
 V1 = (4/3) * (pi) * (1)
 Then, the volume of the current sphere is:
 V2 = (4/3) * (pi) * ((1 + 2 * (1)) ^ 3)
 V2 = (4/3) * (pi) * ((1 + 2) ^ 3)
 V2 = (4/3) * (pi) * ((3) ^ 3)
 V2 = (4/3) * (pi) * (27)
 The relation of volumes is:
 V2 / V1 = ((4/3) * (pi) * (27)) / ((4/3) * (pi) * (1))
 V2 / V1 = 27/1
 Answer:
 
The ratio of the current volume of the balloon to the original volume of the balloon is:
 
27: 1
6 0
3 years ago
Read 2 more answers
Other questions:
  • There are seven cats in my neighborhood, with an average of $41$ whiskers each. If one of the cats has $17$ whiskers, how many w
    11·1 answer
  • If a 45 degree 45 degree 90 degree triangle has a hypotenuse length of 12 find the leg length
    12·1 answer
  • What is 1+4(6p-9) equal to
    12·1 answer
  • 20 times 70 equals? Please help, explain this to me.
    5·2 answers
  • Watch help video
    10·1 answer
  • The sum of three consecutive even numbers is 24 , find the numbers.
    11·2 answers
  • Solve the system of equations. y= x + 17, y= 3x+1
    9·1 answer
  • Final question! Thanks to everyone who has helped!
    11·2 answers
  • Quadrilateral ABCD is similar to Quadrilateral EFGH. The scale factor is 3:2 if AB = 18, find EF
    6·1 answer
  • Write the equation of a line that is parallel to y=1/2x+4 and goes thru the point(-3,4)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!