Answer:
s = 12cm
Step-by-step explanation:
Since these are similar triangles, in order to find a missing side, you have to find the constant of proportionality
14/8 = 21/s >> cross multiply
14s = 168 >> divide both sides by 14 to get s alone
s = 12
another way to find the answer......
Step-by-step explanation:
You still have to find the constant of proportionality, it's just going to be a bit faster this way
14/8 = 1.75
21/1.75 = 12
s = 12
Ms. Agokeng is making a trip to Pennsylvania that is more than 250 miles. She has already driven 45 miles and is continuing her drive at 70 miles per hour. Which of the following inequalities represents the amount of time she has left in the car?
Answer:
The correct answer is A.) 45 + 70x < 250.
y = mx + b
She started at 45 miles (+ 45).
She has to go at least 250 miles (< 250).
She is driving at a constant, unchanging speed of 70 mph (70x).
Which 3 cards on the bottom are the reasons?
Answer:
Attachment
Step-by-step explanation:
help please this make me want to be sad i just want to go play my ps5 hurry
Answer:
5
Step-by-step explanation:
because equation by itself
Question
Under ideal conditions, the population of a certain species doubles every nine years. If the population starts
with 100 individuals, which of the following expressions would give the population of the species t years after
the start, assuming that the population is living under ideal conditions?
Answer: 100 x 2^ t/9
Step-by-step explanation:
The initial population of 100 that doubles in 9 years, gives the
expression for population as; [tex]\underline{ P = 100 \cdot e^{0.077 \cdot t}}[/tex].
How can the expression for the population be found?Given parameters are;
The time it takes the population to double = 9 years
The initial population count = 100
Required:
The expression that gives the population after t years.
Solution:
The population as a function of time can be expressed as an
exponential function as follows;
[tex]P = \mathbf{P_0 \cdot e^{c \cdot t}}[/tex]
At the start, t = 0, P = 100, we have;
[tex]100 = \mathbf{ P_0 \times e^{c \times 0} }= P_0[/tex]
Therefore;
P₀ = 100
After 9 years, we have;
P = 2·P₀
Therefore;
[tex]2 = \mathbf{ e^{c \times 9}}[/tex]
ln(2) = 9·c
[tex]c = \dfrac{ln(2)}{9} \approx 0.077[/tex]
The function that gives the population is therefore;
[tex]\underline{ P = 100 \cdot e^{0.077 \cdot t}}[/tex]Learn more about exponential functions here:
https://brainly.com/question/15602335
Select the reason why these triangles are
similar. If they are not, select "Not similar".
Α. ΑΑ
B. SAS
C. SSS
D. Not similar
Answer:
not similar
Step-by-step explanation:
similar means proportional
1, 1, and 0.5 are not proportional to 3.5, 3, and 2.25
As the two side lengths of the smaller triangle is the same but the ratio of those side in a larger triangle and the smaller triangle is different they are, D. Not similar.
What is congruency?We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.
We know two triangles are similar if the ratios of their corresponding sides are equal.
The larger triangle has sides 3, 3.5, and 2.25.
And the smaller triangle has sides 1, 1, 0.5.
As the smaller triangle has side lengths 1, 1, and the ratio of the sides of the larger triangle and the smaller triangle is (2 + 1)/1 and (2.5 + 1)/1 which is equal to 3/1 and 3.5/1 3 and 3.5 but the smaller side has 1 and 1, therefore, they are not similar.
learn more about congruency here :
https://brainly.com/question/7888063
#SPJ2
Anwser this question for brainlist
which of the following expressions have the greatest value
Answer:
the Answer is D
Step-by-step explanation:
the answer is 2^5 (D) mate
I need help with this
f(g(x))
F=3x-2
G=-x+1
Answer:
f(g(x)) = 3x + 1
Step-by-step explanation:
To find f(g(x)), substitute x = g(x) into f(x), that is
f(x + 1)
= 3(x + 1) - 2
= 3x + 3 - 2
= 3x + 1
Help me please, please make the answer simple and easy
Answer:
5(3x - 9)
3(5x - 45)
Step-by-step explanation:
If you simplify the expression "Andre" wrote, you would get 15x - 45 and just need two other expressions that equal 15x - 45. In this problem it's simple since only 3 and 5 can multiply to make 15 besides 1 and 15, which is used in the expression "Andre" wrote, meaning it couldn't be used.
A staffing agency for in-home nurses and support staff places necessary personnel at locations on a daily basis. Each placed nurse works 240 minutes per day at a daily rate of $90. Each support staff employee works 360 minutes per day at a daily rate of $120.
A. On a given day, 3000 total minutes are worked by then nurses and support staff that were placed. Write an equation that represents this relationship
B. On the same day, earnings for placed nurses and support staff totaled $1050. Write an equation that represents this relationship.
C. Solve the system of equations, and interpret the solution in the context of the situation.
WILL MAKE BRAINLIEST
The Point of Concurrency made from medians is a(n):
Answer:
centroid
Step-by-step explanation:
I need help solving this practice math problem
Hi I need help please 10 points for answering questions 3 and 4 correctly please it’s due tomorrow
Answer:
3. 150% 4. 8.3%
Step-by-step explanation:
Percent error formula is the difference between the actual and estimated divided by actual times 100.
3. (5-2) / 2 x 100= 150%
4. (24-22)/ 24 x 100 = 8.3%
Use similar triangles to calculate the height, h cm, of triangle ABE.
10 cm
D
36 cm
X
h
A А
E
20 cm
Answer:
h = 24 cm
Step-by-step explanation:
By using the similar triangle property in the given triangles,
Since, ΔBCD ~ ΔBAE
Their corresponding sides will be in the same ratio,
[tex]\frac{BC}{BA}= \frac{CD}{AE}= \frac{BD}{BE}=\frac{a}{h}[/tex]
[tex]\frac{CD}{AE}=\frac{a}{h}[/tex]
[tex]\frac{10}{20}=\frac{(36-h)}{h}[/tex]
10h = 20(36 - h)
10h = 720 - 20h
30h = 720
h = 24 cm
Therefore, height h = 24 cm is the answer.
Answer:
24
Step-by-step explanation:
I took the test
If you were going to solve -3(x + 5) = 27, what is the first step that you would do? Why did you start there?
Answer:
Step-by-step explanation:
Multiply -3 for x and for 5
-3x-15=27
When you have this type of equation the first thing you do is take off the parentesis
Then you pass the 15 to the other side and you get -3x= 27 +15 . After that you divide that for -3 and you get the x . In this case x= -14
Sorry if the english is bad, i hope this helps
Next Question!!? Help please... <3
Answer:
x=4 and y=0
Step-by-step explanation:
Sub x-4 in for y:
2x+4(x-4)=8
2x+4x-16=8
6x=24
x=4
y=x-4
y=4-4
y=0
Y = 4
X = 0
Answer is 8
What’s the constant of proportionality
(COP= constant of proportionality) help plz
Find a point on Y-axis which is equidistant from the points (2,-2) and (-4,2)
answers fast pleasee ......help me out guys
Answer:
( -1, 0)
Step-by-step explanation:
(2 + -4)/2 = -1
(2 + -2)/2 = 0
In a survey of 3,500 people who owned a certain type of car,1,925 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer: percent of the people surveyed that were satisfied with the car= 55%
Step-by-step explanation:
Step 1
Total Number of people in the survey who owned certain type of car = 3,500
Number of people that would buy that type of car again = people surveyed that were satisfied with the car= 1,925
Step 2
Percentage of people satisfied with the car= people surveyed that were satisfied with the car/Total Number of people in the survey who owned certain type of car x 100
=1925 / 3500 x 100
=0.55 x 100
=55%
Find the 64th term of the arithmetic sequence 2, -3, -8,
Answer:
[tex]a_{64} = -313[/tex]
Step-by-step explanation:[tex]a_{64} = 2 -135[/tex]
This is the Arithmetic Sequence Formula-> [tex]a_{n} = a_{1} + (n+1) d[/tex]
1) The d represents your difference of the equation. You can find it by finding a pattern between the three numbers given, which is -5
2) Now that we've found our difference, we can plug it into this lovely sequence we have [tex]a_{64} = a_{1} + (64-1) -5[/tex] (by the way, your n represents your term that you plug into the equation)
3) [tex]a_{64} = 2 + (64-1) -5[/tex] This also means that [tex]a_{1}[/tex] is our first term, which is 2
4) Simplify [tex]a_{64} = 2 + (63) -5[/tex] --> [tex]a_{64} = 2 +-315[/tex]
5) [tex]a_{64} = -313[/tex]
The formula is confusing at first, but it becomes easier once your learn the patterns!
Pls help I’m bad at math no matter how much I try
Answer:
9/1 = 0.9
2 = 2.0
3 1/10 = 3.1
10 = 100
Step-by-step explanation:
I need this by tomorrow! please help me, I'm desperate. I dont understand it well.
Solve the system of linear equations by substitution. 4x−2y=14 y=12x−1
Answer:
Step-by-step explanation:
16
i got my question as 4r-2r=5-3r, how do i solve this
Answer:
well if ur looking for r, then r=1 hope dis helps
Step-by-step explanation:
4r-2r=5-3r
combine like turms
2r=5-3r
+3r +3r
5r=5
/5 /5 5/5=1
R=1
think about brinlist thank you
Pleaseee help I want to sleep xD (There's a screenshot)
what is everyones favorite UNDERTALE character
Answer:
flowey the flower (aka: Asriel Dreamer)
Step-by-step explanation:
Answer:
papyrus flowery
Step-by-step explanation:
What is the length of AB? 4 units 5 units 6 units 7 units
Answer:
the answer is 6 units
Step-by-step explanation:
find point A and point B and then just count the units over from
A to B and you will get AB is 6 units
Answer c
Step-by-step explanation: bc its 6 units
Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! Show your work !!!!!!!!!!!!
Answer:
41 degrees
Step-by-step explanation:
82/2 = 41
What is the equation of the following line written in general form?
y
(4.5)
(1,2)
.
Oy -x +1 = 0
Ox-y+1=0
O-X-y+1=0
Answer:
x-y+1 = 0
Step-by-step explanation:
Replace x & y of each coordinates into the function then you'll get the answer.