Answer:
0.023 meters
Step-by-step explanation:
We know 1000 mm is equal to 1m so:
[tex]23mm \times \frac{1m}{1000mm} = 0.023m[/tex]
express the function graphed on the axes below as piecewise function
for x<-4
for x>2
Answer:
<--------o o------------->
-4 2
Step-by-step explanation:
Because the sign in the inequalities is only greater than/ less than (not equal to), we know that there is an open dot on x=-4 and on x=2.
From there, we shade the area on the graph that is true to the function. So, we can test points.
First we will test x=-5
-5<-4 --> this is true, so we will shade to the left of x=-4
Now test x=0
0<-4 --> this is false
0>2 --> this is also false, so the area between the two open dots will not be shaded
Now test x=3
3>2 --> this is true, so we will shade to the right of x=3
Pls help (Jesus loves u)
Answer: well if I am correct, then 9/12 is equal to 3/4 so you then have to subtract 1/12 from 9/12 so 8 (8/12) would be what was taken away. (if you were to simplify 8/12 I believe that would be 2/3)
-hope that helped-
let me know if I misunderstood anything or did something wrong
4. What is the domain? Explain. (1 point)
Answer:
20
Step-by-step explanation:
each time the numbers are up by 20 years
A board is 65 inches long into two pieces, so that one piece is 7 inches shorter than twice the length of the other pieces. Find the length of two pieces
Answer: 24 in, 41 in
Step-by-step explanation:
Set shorter piece is x in, and another longer one is y.
1. x + y = 65
2. y = 2x - 7
plug in the second equation into y of the first equation, we get:
x + (2x - 7) = 65
x + 2x - 7 = 65
3x - 7 = 65 （Add 7 to the both side)
3x = 72 (Divide 3 to both side)
x = 24 in
Plug x in the second equations to slove y.
y = 2x - 7
y = 2(24) - 7
y = 41 in
The equation
N(t) = 400/1 + 39e−0.7t models the number of people N in a town who have heard a rumor after t days.
How many people started the rumor?
Functions can be represented as equations, and equations can be represented as functions.
The number of people that started the rumor is 10
The function is represented as:
[tex]\mathbf{N(t) = \frac{400}{1 + 39e^{-0.7t}}}[/tex]
To calculate the number of people that started the rumor, we simply set t to 0.
So, we have:
[tex]\mathbf{N(0) = \frac{400}{1 + 39e^{-0.7 \times 0}}}[/tex]
Evaluate the exponent of e
[tex]\mathbf{N(0) = \frac{400}{1 + 39e^{0}}}[/tex]
Express e^0 as 1
[tex]\mathbf{N(0) = \frac{400}{1 + 39\times 1}}[/tex]
Multiply 39 and 1
[tex]\mathbf{N(0) = \frac{400}{1 + 39}}[/tex]
Add 1 and 39
[tex]\mathbf{N(0) = \frac{400}{40}}[/tex]
Divide 400 by 40
[tex]\mathbf{N(0) = 10}[/tex]
When t = 0, N(t) = 10
This means that 10 people started the rumor.
Hence, the number of people that started the rumor is 10
Read more about functions and equations at:
https://brainly.com/question/3468890
Help me asap plssssssss
Answer:
B) 20
Step-by-step explanation:
c = √b2 + c2 - 2bc·cos(A) = 20
Have a nice day! :-)
Ariel baked 16 with nuts on top and 7 brownies without nuts.
Answer:
I think the answer is 16:73x-8=3(1x-3)-2
whats the answer to that problem
Answer:
-3
Step-by-step explanation:
......................
Factor
1
out of
2x+6.
.
The factored expression is
Answer:
the factored expression: 2(x + 3)
Find the slope between:
(1,-2)
(2,-2)
Answer: the slope would be 0
Step-by-step explanation:
A line that passes trough the point (7,3) with slope of -1 ( answer plesse I need help )
Answer:
Slope-Intercept Form:
The equation of a line in slope-intercept form is y=mx+b. Since we know that the slope is -1, the equation so far is y=-x+b. To find the value of b, substitute in the given point.
3=-7+b
Add 7 to both sides.
10=b
The equation of the line is slope intercept form is y=-x-10.
Point-Slope Form:
The equation of a line in point-slope form is y-y1=m(x-x1). Substituting in the given point and slope, the equation is y-3=-(x-7).
Hope this helps! :)
Answer:
y= -x + 10
Step-by-step explanation:
3 = -1(7) + b
3 = -7 + b
10 = b
Since the slope is -1, that means it's just -x
So y = -x + 10
Evaluate. 1.4³
please help ASAP
Answer:
"between 2 and 8" or, "less than 3.3", or "bit less than 3", or by long division, 2.984, depending on how accurate your evaluation is needed.
Step-by-step explanation:
How rough do you want your extimate?
A wild guess is "something between 1 and 8, since 1.4 is between 1 and 2.
Something better? that's a bit less than 1.5, which means 3/2. Cubed, it's 27/8. so it's less than 3.3
More accurate? it's 14/10, or 7/5. Cubed, 373/125, which is almost 375/125, or 3. So as a wild guess, it's 2.9
Exact value, you do long division with the previous value, 373/125, and you get your result"
Please help me with this problem in math it's about evaluating numbers.Thank you if you help me :D
Answer:
5
Step-by-step explanation:
|-3| = 3
2 + 3 = 5
how many natural number less than 200 are divisible by 6 but not by 5
Answer:
27.
Step-by-step explanation:
200 / 6 = 33 1/3.
Numbers which are divisible by 5 and 6 are 30, 60, 90, 120, 150 and 180.
So the total is 33 - 6 = 27.
Answer:
27
Step-by-step explanation:
27. 33-6=27
PLS HELP!! GEOMETRYYY
Plot the points on a graph. You'll get a figure like a trapezoid.
Check the attached image.
_____
RainbowSalt2222 ☔
Expand the given expression
4(4x - 4)
Answer:
16x - 16
Step-by-step explanation:
Distribute the 4 to the other terms.
4(4x - 4) = 16x - 16
The function f(x) =59(x − 32) can be used to determine the temperature in °C when the temperature is x°F. Find the inverse function that can be used to determine the temperature in °F when the temperature is x°C.
Answer:
[tex]F = ( \frac{9}{5}C ) + 32[/tex]
with F = xF and C = xC
=> f(x) = (9/5)x + 32
I'm sorry I can't mark the degree symbol
Step-by-step explanation:
[tex]f(x) = \frac{5}{9}(x-32) \\xC = \frac{5}{9}(xF-32) \\xC * \frac{9}{5} = \frac{5}{9}(xF-32) * \frac{9}{5} \\xC * \frac{9}{5} + 32 = xF - 32 + 32 \\\\xC * \frac{9}{5} + 32 = xF[/tex]
7968 divided by 22 estimating
Answer:
363
Step-by-step explanation:
please simplify plesase...............
Answer:
A
Step-by-step explanation:
yeah-ya............ right?
ANSWER:
[tex] \large\color{green}{ \tt{A. 1 / 10}}[/tex]
Solution Steps:
Least common multiple of 5 and 10 is 10. Convert 1/5 and 1/10 to fractions with denominator 10.
[tex]( \frac{2}{10} - \frac{1}{10} ) \times 3^{2} - \frac{4}{5} [/tex]
Since 2/10 and 1/10 have the same denominator, subtract them by subtracting their numerators.
[tex] \frac{2 - 1}{10} \times 3^{2} - \frac{4}{5} [/tex]
Subtract 1 from 2 to get 1.
[tex] \frac{1}{10} \times 3^{2} - \frac{4}{5} [/tex]
Calculate 3 to the power of 2 and get 9.
[tex] \frac{1}{10} \times 9 - \frac{4}{5} [/tex]
Multiply 1/10 and 9 to get 9/10.
[tex] \frac{9}{10} - \frac{4}{5} [/tex]
Least common multiple of 10 and 5 is 10. Convert 9/10 and 4/5 to fractions with denominator 10.
[tex] \frac{9}{10} - \frac{8}{10} [/tex]
Since 9/10 and 8/10 have the same denominator, subtract them by subtracting their numerators.
[tex] \frac{9 - 8}{10} [/tex]
Subtract 8 from 9 to get 1.
[tex] \large\color{green}\frac{1}{10} [/tex]
Hope It's Help
I need help with this assignment.
Answer:
slope = - 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, - 2) ← 2 points on the line
m = [tex]\frac{-2-0}{0-(-2)}[/tex] = [tex]\frac{-2}{0+2}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1
Which values are solutions to the inequality -3x - 4 < 2? Check all of the boxes that apply.
-4
-2
0
3
Answer:
-2
Step-by-step explanation:
You would add 4 to 2 inorder to get 6, then divide by 3 to get -2
A textbook store sold a combined total of 328 math and history textbooks in a week. The number of math textbooks sold was three times the number of history textbooks sold. How many textbooks of each type were sold?.
Answer:
246 math and 82 history textbooks
Step-by-step explanation:
this one is a fun one
328 / 4 gives us a value of m and h which is 82
so 328 = 3x + y
328 = 3m(82) + 1h(82)
328 = 246m + 82h
328=328
Helena is snorkeling at a position
26.75 meters below sea level. She
descends 0.25 meters each minute
for 18 minutes. What is Helena's
position compared to sea level after
18 minutes?
Answer:
Helena is 31.25 meters below the sea level.
Step-by-step explanation:
0.25 x 18 = 4.5
26.75 + 4.5 = 31.25
Helppp pleasee ilyyyy if u do
Answer:
x = 115°
Step-by-step explanation:
The two angles are vertical, so x = 115°
Vertical Angles:Vertical Angles are two angles formed by the intersection of two lines. Angles that are non-adjacent to each other are congruent in degrees.
We can see that 115° and x° are formed by the intersection of two lines, and they are non-adjacent (don't share a common side) which makes them congruent in degrees.
x = 115°
-Chetan K
francisco needs to know the height of a tree. From a given point on the ground, he finds that the angle of elevation to the top of the tree is 74.2 degrees. He then moves back 35 feet. From the second point, the angle of elevation to the top of the tree is 51.8 degrees. Find the height of the tree.
Please see the answer in the image.
can anyone help please
Answer:
answer is 7.2
Step-by-step explanation:
0.9(15)-2.1(3)
13.5-6.3=7.2
Answer:
7.2
Step-by-step explanation:
0.9*15=13.5
2.1*3=6.3
13.5-6.3=7.2
What is -3(4x+8)/3(-2)
Answer:
8 x + 16
Step-by-step explanation:
math---way
In an aquarium, ⅖ of the fish are surgeonfish. Of these, ¾ are yellow tangs. What portion of all fish in the aquarium are yellow tangs?
Shane downloaded 5 songs in two minutes At this rate, how many songs can he download in ½ hour?
Answer:
75
Step-by-step explanation:
he can download 2.5 songs per minute so 2.5 x 30 is 75
Answer:
Shane can download 75 songs in half an hour.
Step-by-step explanation:
use a proportion;
5 x
--- = ---
2 30
30/2 = 15
15 x 5 = 75
x = 75
A boy rides away from home in an automobile at the rate of 28 km/h and walks back at the rate of 4 km/h. The round trip is x km. Write and simplify an expression that will represent the total time, in hours, the boy travelled. (distance=speed *time)
Answer:
Step-by-step explanation:
Then, the total time, which is 2 hours, is equal to x plus 7x, or 8x. So the amount of time he spends in the automobile is x=1/4 hour. The distance he travels in 1/4 hour at 28 mph is 7 miles.
pls mark brainliest
