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
Gelneren [198K]
3 years ago
9

The temperature of the air in the afternoon was 4°c, and in the evening -2°

Mathematics
1 answer:
charle [14.2K]3 years ago
4 0
4- -2 = 6 degree change
You might be interested in
What is the domain of <br> F(x)=√x ?<br><br> (PLEASE HELP ASAP)
leva [86]

Option C. all real numbers greater than 0 is the correct answer

Further explanation:

Domain is the set of all inputs on which the function is defined or real.

The given function is:

f(x)=\sqrt{x}

As the function involves a square root, we have to avoid negative numbers.

  • All positive real numbers will produce defined output so the positive real numbers will be included in the domain.
  • If we look at negative real numbers, we will be taking square root of a negative number which will not result in a real number

So the domain will only include positive real numbers.

Hence, Option C. all real numbers greater than 0 is the correct answer.

Keywords: Domain, Domain of radical functions

Learn more about domain at:

  • brainly.com/question/3511750
  • brainly.com/question/3852778

#LearnwithBrainly

5 0
3 years ago
1) An average soccer ball has a mass of .4 kg. If a soccer ball is kicked with a force of 750 Newtons, what is the acceleration
tangare [24]

Answer:

<u>1) 187.5ms^2</u>

<u>1) 187.5ms^22) 307.5m</u>

Step-by-step explanation:

1) You can use the formula:

Force = Mass x Acceleration

750 = 4 x a

750 = 4a

750/4 = a

<u>187.5ms^2</u>

2)

For every one second it travels 12.3 meters therefore you can just do 12.3x25 = 307.5m

8 0
3 years ago
A metalworker has a metal alloy that is 20​% copper and another alloy that is 60​% copper. How many kilograms of each alloy shou
puteri [66]
<h3>Answer:</h3>
  • <u>20</u> kg of 20%
  • <u>80</u> kg of 60%
<h3>Step-by-step explanation:</h3>

I like to use a little X diagram to work mixture problems like this. The constituent concentrations are on the left; the desired mix is in the middle, and the right legs of the X show the differences along the diagonal. These are the ratio numbers for the constituents. Reducing the ratio 32:8 gives 4:1, which totals 5 "ratio units". We need a total of 100 kg of alloy, so each "ratio unit" stands for 100 kg/5 = 20 kg of constituent.

That is, we need 80 kg of 60% alloy and 20 kg of 20% alloy for the product.

_____

<em>Using an equation</em>

If you want to write an equation for the amount of contributing alloy, it works best to let a variable represent the quantity of the highest-concentration contributor, the 60% alloy. Using x for the quantity of that (in kg), the amount of copper in the final alloy is ...

... 0.60x + 0.20(100 -x) = 0.52·100

... 0.40x = 32 . . . . . . . . . . .collect terms, subtract 20

... x = 32/0.40 = 80 . . . . . kg of 60% alloy

... (100 -80) = 20 . . . . . . . .kg of 20% alloy

6 0
3 years ago
I want pictures of how you took the answer
ale4655 [162]

The value of x in both case is 17 and 10.

<h3></h3><h3>What is complementary and supplementary angle?</h3>

If the sum of two angles is 180 degrees then they are said to be b angles, which form a linear angle together. Whereas if the sum of two angles is 90 degrees, then they are said to be complementary angles, and they form a right angle together.

1. As the given angle is 90 degree i.e., complementary angle.

So,

 22+4x=90

  4x= 90-22

  4x= 68

    x= 17

2. As the figure for the linear pair i.e., supplementary angle

So,

110+7x=180

7x=70

x=10

Hence the value of x in both case is 17 and 10.

Learn more about complementary and supplementary angle here:

brainly.com/question/3027144

#SPJ1

6 0
2 years ago
Given the graph of the exponential function, predict the value of y when x = 4.
anygoal [31]

Answer:

x=4

Step-by-step explanation:

Graph.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of the expression below when simplified?<br><br> 4[5(3 − 1)]2 − 23
    13·2 answers
  • Write the expression as the sine, cosine, or tangent of an angle.
    11·1 answer
  • Please help ASAP!!!!!!
    11·2 answers
  • How to simplify 20x+10-13=
    15·1 answer
  • For what value of y does 125=(1/25)^y-1
    10·2 answers
  • Convert 5 feet to inches .There are 12inches in 1 foot
    11·2 answers
  • Follow this link to view juan’s work. critique juan’s work by justifying correct solutions and by explaining any errors he made.
    12·1 answer
  • Convert 2x-y=-7 into slop-intercept form​
    11·2 answers
  • Find the equation of the linear function represented by the table below in slope-
    15·1 answer
  • 32 + y - 2y?<br> Re write the equation with the variable with the highest exponent first
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!