Answers
Answer:
a) t ≥ 5
b) (see below)
Step-by-step explanation:
First, make note of the info you are given and what you're trying to do:
- at midnight, 5°C
- drops consistently 2°C per hour
- finding t
- t = # of hours past midnight when temp. was past -4°C
- put t on a number line
So, first, you need to find the first point at when the temperature goes past -4°C. Notice that the question is asking for past -4°C, not -4°C and past. This means we're not including -4°C.
Every hour, we're dropping by 2°C. You can draw a visual to better understand the situation. See the image below.
So we know that starting from 5 am, we are lower than -4°C.
This is 5 hours from midnight.
So t ≥ 5. This means that the number of hours past midnight when the temperature was colder than -4°C was 5 or more hours.
On the number line, draw a circle on 5 (between 4 and 6), but shade it in because it includes 5. Then, shade or highlight to the right of that circle to the end of the number line.
This shows that t is equal to or greater than 5.
Related Questions
ASAP! here’s another that that i can’t figure out!! Please help :)))
Answers
10 points please help
Answers
Answer:
a. 9(2m+7)
b. 4(3r-1)
Step-by-step explanation:
When factoring out the greatest common factor of expressions, first list the factors of the terms. Then, determine the greatest common factor between the two terms. After, "carry" that number out of the expression through division.
a. 18m+63
Start by listing the factors of 18 and 63.
18: 1, 2, 3, 6, 9, 18
63: 1, 3, 7, 9, 21, 63
The greatest common factor of 18 and 63 is 9, so we can carry 9 out of the expression through division:
18m+63
= 9(2m+7)
b. 12r-4
Start by listing the factors of 12 and 4.
12: 1, 2, 3, 4, 6, 12
4: 1, 2, 4
The greatest common factor of 12 and 4 is 4, so we can carry 4 out of the expression through division:
12r-4
= 4(3r-1)
I hope this helps!
How many acute angles are shown in this figure?
Answers
Answer:
there are 4
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
the laptop corner, the purple windows square in the bottom left corner, the O purple on the lower bar and technically all the visable keys are squares as well so many more than 7
what does y = 3x + 1 look like on a graph?
Answers
Answer: Try mathhway
Step-by-step explanation:
If your good at math please help me with this question
Answers
Answer:
546
Step-by-step explanation:
The lateral area is made up of 4 faces that do not includes the bases.
2 faces have dimensions 2.5 ft by 21 ft.
2 faces have dimensions 10.5 ft by 21 ft.
LA = 2 * 2.5 ft * 21 ft + 2 * 10.5 ft * 21 ft
LA = 105 ft^2 + 441 ft^2
LA = 546 ft^2
Answer: 546
Answer:
493.5
Step-by-step explanation:
to find the surface of the prisim you multiply the perimeter of the base by the height of the prism.
Date
Name
Linear Equations, Functions, and Inequalities
Finding Solution Sets to Systems of Linear Inequalities
Warm-Up
Identify two solutions for each system of inequalities.
4
*Bonus - Identify one ordered pair that is NOT a solution for each system of inequalities.
Answers
Answer:?
Step-by-step explanation:
help i don't understand this!
Ben cut the following rockets out of cardboard. The height from the base to the tip of the smaller rocket is 20 cm. The height from the base to the tip of the larger rocket is 120 cm. What percent of the area of the smaller rocket is the area of the larger rocket?
Answers
20/120x100=16.67%
Every delivery order from a pizzeria has a delivery charge of $1.50. How many dollars b is the total bill for a delivery of one pizza if the pizza costs p dollars? Write an equation to represent the situation
Answers
Answer:
p+1.50=b
Step-by-step explanation:
Hope it helps (;
(HELP FAST PLEASE)
Robert runs 2 1/3 laps in 4 1/3 minutes. At this rate how long will it take to run 3 laps?
Answers
Answer:
7
Step-by-step explanation:
This is easy. You simply see what 2 1/3 is of 3. The answer is 7.
Please make brainliest!
Answer:
[tex]5 \frac{7}{50}[/tex]
Step-by-step explanation:
we can write the following ratios
laps:time
2.333:4.3333
3:x
To solve this just multiply 4.333 by 1.28571428571 (this is what we mulitplied 2.333 by to get 3)
do this and round to get 5.14 minutes
let's convert this into a fraction just in case
5.14= 514/100 = 257/50 = 5 7/50
.Any number that has 9 as a factor also
has 3 as a factor. Why is this
Answers
Answer:
9 is divisable by 3.
A number that has 9 as a factor can be divided by 9 so it can also be divided by 3.
find the perimeter of the triangle 8cm 7cm 5cm
Answers
Answer:
20 cm
Step-by-step explanation:
add 8+7+5 = 20 cm as the perimeter
Answer:
perimeter = 8 + 7 + 5 = 20cm
Step-by-step explanation:
sum of all sides = perimeter...
As a retiring employee, you'll receive 5.96% of your average salary from the last five years you worked with your company.
You plan to retire after 37 years with the company.
Your salaries for your last five years are:
$180,267
$210,325
$126,591
$77,184
$173,175
Calculate your annual retirement salary.
Answers
Answer:
9,149.10
Step-by-step explanation:
To get the average you take all the values and add them up then divide by 5.
767,542 divided by 5 = 153,508.40
Now to get the percentage take 5.96 and divide by 100 = 0.0596
With this you can multiple the average by the percent in decimal form.
153,508.40 * 0.0596 = 9,149.10
Carlos needs to buy 6 pens and some colored pencils for school. He has $25 to spend. If the pens cost $3.25 each, how much does Carlos have left to spend?
Answers
Answer:
He will have $5.50 left to spend.
Step-by-step explanation:
Please help!!
Find the center, vertices, and foci of the ellipse with equation
Answers
Answer:
center (0;0), vertices (0;10) and (0;-10), foci (0;6) and (0;-6)
Step-by-step explanation:
Answer:
[tex]\boxed{\boxed{C) Center:(0,0);\: Vertices:(-10,0),(10,0);\:Foci:(-6,0),(0,6)}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:conic geometryalgebraPEMDASgiven:[tex] \frac{ {x}^{2} }{100} + \frac{ {y}^{2} }{64} = 1[/tex]to find:centerverticesfocitips and formulas:[tex] \sf ellipse \:equation : \\ \tt\frac{( {x}^{2} - h)}{ {a}^{2} } + \frac{( {y}^{2} - k)}{ {b}^{2} } = 1[/tex][tex] \sf c(h,k)[/tex][tex] \sf v(h \pm a,k)[/tex][tex]\sf F(h\pm c,k)[/tex][tex] \sf c = \sqrt{ {a}^{2} - {b}^{2} } [/tex]let's solve:[tex] \sf rewrite \:the \: given \: equation \: as \: ellipse \: equation \\ \tt \frac{ {(x - 0)}^{2} }{100} + \frac{ ({y - 0)}^{2} }{64} = 1[/tex]since we can see that h and k is 0
therefore
c(0,0)
[tex] \sf vertices :( h \pm a,k)[/tex]
given:a²=100
let's find a
a=√100
a=10
therefore
vertices:(0±10,0)
=(0+10,0) and (0-10,0)
=(10,0) and (-10,0)
[tex] \sf foci : (h \pm c,k)[/tex]
[tex] \tt c = \sqrt{ {a}^{2} - {b}^{2} } [/tex]
[tex] \sf \: c = \sqrt{ {10}^{2} - {8}^{2} } \\ \sf \: c = \sqrt{(10 + 8)(10 - 8)} \\ \sf c = \sqrt{(18)(2)} \\ \sf c = \sqrt{36} \\ \tt c = 6 [/tex]
therefore,
foci:(h±c,k)
=(0±6,0)
=(0+6,0) and (0-6,0)
=(6,0) and (-6,0)
[tex]\text{also see the graph} [/tex]
Please answer number 20 with work!
Answers
Answer:
A
x/64 = 36/36
this is the answer
Answer:
C
Step-by-step explanation:
when doing proportions you have to align your fractions accordingly.
we are putting x over 64 which means that small triangle in the top and big triangle in the bottom. On the other side its going to be 36 because of the small triangle's side and in the bottom we put the big triangle's side which will be 72 because 36+36=72
[tex](5x+4) (x-7) =0[/tex]
Answers
5x^2 -35x + 4x - 28
Simplify
5x^2 - 31x -28
a=5 b=-31 c=-28
Use these in the quadratic formula and do the equation whith both plus and minus
x=7 and x=-0.8
if an ordered pair was added to the table, which of the following pairs would result in the table becoming not a function.
Please help
Answers
Answer:
C or D
Step-by-step explanation:
✔️If the ordered pair (8, 3) was added to the table, we would have two one input value, 8, having two different outputs, 4 and 3 respectively. The table therefore ceases to be a function. Each input value in a function must have only one output value. Otherwise, it ceases to be a function.
✔️Also, if we look at other options, we would see that we also have another orders pair that can make the table not to be function anymore once it's added to the table.
The ordered pair (-3, 4), when added, will make us have one input value, -3, having two output values, 4 and 6 respectively. This will make the table not to become a function.
✔️Therefore, there are two correct options, they are C or D.
The sum of two numbers is 42. The smaller number is 20 less than the larger number. What are the numbers?
Answers
Answer: 22 and 20
Step-by-step explanation: Good luck! :D
Answer:
20+22
Step-by-step explanation:
42-20=22
22+20=42
Choose the correct inequality symbol for the following statement.
-4 - (-2) _____ -6
options:
>
<
=
Answers
Can I have some please
Answers
Answer:
A:x=7.5 or 7 and 1/2
b:x=1
Step-by-step explanation:
In the diagram below, what is the approximate length of the minor arc AB?
A. 28.8 cm
60°
30 cm
B. 62.8 cm
c.
C. 15.7 cm
D. 31.4 cm
Answers
Answer:
31.4 cm , just did the quiz
Step-by-step explanation:
The length of the minor arc is 31.4 cm of the given circle.
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
Arc length is the distance between two points along a section of a curve.
The formula for arc length is θ/360×2πr
Arc length = θ/360×2πr
Where θ is the central angle and r is the radius of the circle.
θ = 60 degrees and r is 30 cm
Plug in the value of θ and r
Arc length = 60/360 × 2×3.14×30
=1/6×60×3.14
=188.4/6
=31.4
Hence, the length of the minor arc is 31.4 cm of the given circle.
To learn more on Circles click:
https://brainly.com/question/11833983
#SPJ7
Box A weighs 1.4 pounds, box B weighs 3.2 pound, and box C weighs 2.5 pounds. What is the combined weight of box A and Box C?
Answers
Answer:
3.9 pounds
Step-by-step explanation:
Box A=1.4 lbs
Box B=2.5 lbs
Answer= Box A + Box B = 1.4+2.5 lbs
1.4+2.5= 3.9 lbs
Adan and Darlene have entered the Pythagorean Lake Endurance Trial. Part of the competition requires them to travel from Geoville, which is on the south side of the lake, to Triple City, which is across the lake and due north of Geoville. Adan decides to ride his scooter from Geoville to Angle Point, which is 20 miles due east of Geoville, and then continue on to Triple City. There is a direct route that runs in a straight line for 25 miles from Angle Point to Triple City. Adan's scooter can go no faster than 35 mph. Darlene thinks she can beat Adan to Triple City by taking a fishing boat (average speed 12 mph) directly from Geoville to Triple City. Who will get to Triple City first? Explain your solution.
Answers
Answer:
Darlene will get there first
Step-by-step explanation:
I have uploaded the work
y = 2x^2
y = 3x^2 - 4
Graph the quadratic functions y =-2x^2 + 4 on a separate piece of paper. Using those graph, compare and contrast the shape and position of the graphs.
Answers
Answer:
y = 2x^2 is a parabola opening up with it's vertex at (0,0)... y=3x^2 -4 is also a parabola opening up, but it is 'thinner' in that it rises in y faster and it's vertex is at (0,-4)
Step-by-step explanation:
all equations of the type y = ax^2 + b are parabolas centered on the y-axis, soo the vertex is always on (0,b)
If a is positive then the parabola opens up,
the bigger a is, the 'thinner' the graph is, i.e. the faster the graph rises
the value of b determines the location of the vertex, if b is added, then the vertex rises over the x-axis, if b is subtracted then the vertex is below the x-axis
Serina paid $194.99 for a game system and then bought 2 equally priced games if she spent a total of $284.97 what is the price, P , of one game?
Answers
What comes next in this pattern?
Answers
Answer:
П П
П
П П
П
П П
П
Step-by-step explanation:
the pattern goes 10, 9, 16, 16, 10, 9, 16, 16, 10, 9, 16, 16, 10...…
Write a formulation for the 9th term of the sequence below 5, 15, 45, 135
Answers
Answer:
a ^5 = 405
I dont really know the answer
Answer: 32,805
I will give brainliest if correct !!
Answers
Answer:
d) 8
Step-by-step explanation:
Answer:
d-8
Step-by-step explanation:
Linda thinks of three integers. Added two at a time their sums are 80, 93, 87. What are the integers?
Answers
Answer:
They are 9, 5 and 8
Step-by-step explanation:
70925 rakamları birer defa kallanılarak yazılabilecek 5 basamaklı en büyük teksayı ile 5 basamaklı en küçük çift sayınınn toplamı kaçtır
Answers
Answer:
194725
Step-by-step explanation:
Given the digits :
70925 : 7, 0, 9, 2, 5
Largest 5 - digit even number : 97520
Largest 5 - digit odd number : 97205
The sum of the largest even and odd numbers formed :
97520 + 97205
= 194725