Answer: (20)=2(1)+18 or (54)=2(18)+18
How many three-digit even numbers are possible if the leftmost digit cannot be zero?
Answer:
450
Step-by-step explanation:
There are 900 3-digit numbers in the range 100–999. Of those, exactly half are even numbers.
There are 450 even three-digit numbers.
Help please I don’t understand
Answer:
Step-by-step explanation:
Given the following 3 points:
x y
-56 66
-42 58
-28 50
Check the slope of two line segments between the three points:
(58 - 66)/(-42 - (-56))
= -8/14
= -4/7
(50 - 58)/(-28 -(-42))
= -8/14
= -4/7
As the slopes are the same, the 3 points are on a straight line with slope of - 4/7:
y = -4x/7 + C
Substitute x = -28 , y = 50 into the equation
50 = -4(-28)/7 + C
50 = 16 + C
C = 34
y = -4x/7 + 34
Y-intercept at x = 0:
= 34
Find the measure of the missing angle.
Answer:
20 degrees
Step-by-step explanation:
90 degrees minus 70 degrees, because it is a 90 degree angle.
does anyone know this i tried for hours and can’t figure it out
Enya walked 2km 309m from school to the store. Then, she walked from the store to her home. If she walked a total of 5km, how far was it from the store to her home?
Answer:
2 km 691 m
Step-by-step explanation:
5 km - 2 km 309 m
= 5000 m - 2309 m
= 2691 m
= 2 km 691 m
A car was travelling at a speed of 90km/h. What was its speed in m/s?
Help please and show work
Answer: i think that jacks volume would be 24 i think jills is 882 i believe but i may be wrong
Step-by-step explanation:
1. The National Institutes of Health funded a study of a random sample of 856 people
age 71 and older in the United States. They found that 9.7% of these people suffer
Da
PC
from Alzheimer's Disease.
a. Identify the population of interest in this study.
b. Is .097 (the decimal version of 9.7%) a parameter or a statistic? What symbol
do
you use to represent it?
c. Determine a 95% confidence interval for the proportion of elderly Americans
who have Alzheimer's disease.
d. Check and comment on whether the technical conditions required for this
(
confidence interval are satisfied.
e. If you were to determine instead a 90% CI, how would it differ and
how would it be similar to the result in part c? (Do not bother to do the
calculations.)
f. Determine how many people would have to be studied in a new sample if
you want to estimate the population proportion to within = .02 with 99%
confidence. (Use the result of the current sample in your determination of the
new sample size.)
The population in the study are the people that are 71 years of age and older in the United States.
What is a population?Population simply means the representative sample of a larger group. Here, the population in the study are the people that are 71 years of age and older.
Also, 0.097 is a statistic because it describes the proportion of the people that suffer from the disease for the sample of 856.
The technical conditions are that the sample should be collected from a normal distribution. In this case, since the sample size is large, then the sampling distribution of the sample means is normal.
Learn more about population on:
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ACED-A2 Skill Review
1. Which equation represents a line that has a slope of -3 and an x-intercept of 5?
Answer:
y=-5x+35
Step-by-step explanation:
Use the formula y = mx + b
m = slope, so plug in -5 as the slope
To find x-intercept we set y=0
We want the x-intercept to be 7 so we can plug that into the equation too
0=-5(7)+b
Lastly solve for b and you get your answer
Which is y=-5x-35 :) hope this helps
Enter the ratio as a fraction in lowest terms
5ft to 58 in.
Answer:
30/29
Step-by-step explanation:
5 feet is 5*12 = 60 inches
Fraction is (60 in)/(58 in)
(60 in)/(58 in) = 30/29
7) Which of the numbers is rational?
Α) π
B) V25
C) V2
D) V3
Pls help me
Question 4 Part C (3 points): Based on the composite function you created in part A, determine how many trees Carlos can expect to have after 22 days. Click the included image to refer back to Part A as needed.
The composite function is 20d-(80) = 67
A.86 trees in 22 days
B.440 trees in 22 days
C.1340 trees in 22 days
D.1360 trees in 22 days
Answer:
C) 1340 days
Step-by-step explanation:
The composite function you have given is incorrect.
The composite function for this question is:
t(d) = 60d + 20
(as I have proven in a previous question)
Substitute d = 22 into the function:
t(22) = 60(22) + 20
= 1320 + 20
= 1340 days
Find the degree of this polynomial.
-7d
Hey there!
The degree is the exponent.
Let me explain with examples.
Suppose we have a polynomial 4d.
Its degree is 1 (it's a first degree polynomial)
What is the degree of the polynomial 4d²?
That's right, this is a second-degree polynomial.
And so on...
Let's look at our polynomial.
We have
-7d.
What is the degree of the polynomial?
That's right, 1.
Hence, -7d is a
[tex]\boxed{\boxed{\bold{first-degree~polynomial}}}[/tex]
Hope everything is clear.
Let me know if you have any questions!
#KeepLearning
[tex]\bold{Don't~give~up...}[/tex]
factor 20mn-15m
solve (5/6z + 5)+(-1/3z-4)
Show work
Factorisation:
[tex]\rightarrow \sf 20mn-15m[/tex]
take 5m as common term
[tex]\rightarrow \sf 5m\left(4n-3\right)[/tex]
solving/simplifying:
[tex]\rightarrow \sf \left(\dfrac{5}{6}z\:+\:5\right)+\left(-\dfrac{1}{3}z-4\right)[/tex]
[tex]\rightarrow \sf \dfrac{5}{6}z+5-\dfrac{1}{3}z-4[/tex]
[tex]\rightarrow \sf \dfrac{5}{6}z-\dfrac{1}{3}z+5-4[/tex]
[tex]\rightarrow \sf \dfrac{5}{6}z-\dfrac{1(2)}{6}z+1[/tex]
[tex]\rightarrow \sf \dfrac{5-2}{6}z+1[/tex]
[tex]\rightarrow \sf \dfrac{3}{6}z+1[/tex]
[tex]\rightarrow \sf \dfrac{1}{2}z+1[/tex]
Answer:
[tex]5m(4n - 3)[/tex]
[tex]\dfrac12z+1[/tex]
Step-by-step explanation:
Given expression:
[tex]20mn-15m[/tex]
Rewrite 20 as [tex]4\cdot 5[/tex]
Rewrite 15 at [tex]3 \cdot 5[/tex]
Therefore,
[tex]20mn-15m=4\cdot 5m\cdot n-3 \cdot 5m[/tex]
Factor out common term [tex]5m[/tex] :
[tex]\implie 5m(4n-3)[/tex]
-------------------------------------------------------------------------------------
Given expression:
[tex]\left(\dfrac56z + 5\right)+\left(-\dfrac13z-4\right)[/tex]
Simplify:
[tex]\dfrac56z+5-\dfrac13z-4[/tex]
Group like terms:
[tex]\dfrac56z-\dfrac13z+5-4[/tex]
Combine like terms:
[tex]\dfrac12z+1[/tex]
Evaluate the expression for k = –7 and m = –2.km − m
Answer:
2 km 7 m=2000m+7m=2007m=
1000
2007
km=1.007 km
Step-by-step explanation:
please mark me as brainlist
A figure with two right triangles is shown below. What is the distance between A and B ?
Answer:
21 feet
Step-by-step explanation:
12^2+x^2=20^2(Pythagorean theorem)
144+x^2=400
x^2=400-144
x^2=256
x=sqrt 256
x=16
y^2+12^2=13^2(Pythagorean theorem)
y^2+144=169
y^2=169-144
y^2=25
y=sqrt 25
y=5
distance between A and B=16+5
=21 feet
What is the shortest distance Jill can travel if she leaves her house, goes to the post office, to the grocery store, and then returns home?
A. 15 miles
B. 28 miles
C. 45 miles
D. 60 miles
Answer:
the answer is truly 28 person above is correct
Un establo con forma de triangulo rectangulo encierra 50 metros cuadrados. Si su lado menor mide cinco,el lado perpendicular a este, ¿Cuantos metros debe de medir?
Veremos que el otro lado del triangulo debe medir 20 metros.
¿Cuanto debe medir el otro lado?
Sabemos que para un triangulo rectangulo de catetos P y K, el area es:
A = P*K/2
En este caso, sabemos que el menor de los catetos mide 5 metros, entonces tenemos:
P = 5m
Y tambien sabemos que el area es de 50m^2, reemplazando eso en la ecuación de arriba obtenemos:
50m^2 = 5m*K/2
Ahora podemos resolver esto para K
(50m^2)/5m = K/2
10m = K/2
2*10m = K = 20m
El otro lado debe medir 20 metros.
Si quieres aprender m'as sobre triangulos, puedes leer:
https://brainly.com/question/25839532
Urgent! please help
thanks again for the help everyone
Answer:
[tex]\sf{ (z-7)(z-2)}[/tex]
explanation:
[tex]\sf z^2 - 9z + 14[/tex]
break down, (7 * 2) = 14
[tex]\sf z^2 - 7z - 2z + 14[/tex]
collect in parenthesis
[tex]\sf z ( z - 7 ) -2(z - 7)[/tex]
collect in groups
[tex]\sf{ (z-7)(z-2)}[/tex]
A sphere has a radius of 4.3 centimeters.
What’s the volume to the nearest cubic centimeter?
A. 55
B. 310
C. 931
D. 2,481
Answer : Volume = 4/3πrcubed = 4/3.π.4.3cubed≈333.03814cm(cubed)
Hope that helps
Step-by-step explanation:
(12-8)x3-2x7+square root of 36
Answer:
4
Hope this helps ;)
Step-by-step explanation:
(12-8)x 3 - 2 x 7 = -2
√6 ≈ 2.44949
-2 + 2.44949
= 4
If the millers spend $1400 on housing, then what is their total budget?
Answer:
need more detail
Step-by-step explanation:
Cos(90-2x) . tan(180+x) + sin^2(360-x)
Answer:
Step-by-step explanation:
Cos(90-2x) . tan(180+x) + sin^2(360-x)
= sin(2x) * tan(x) + sin²(x)
= 2sin(x) cos(x) sin(x)/cos(x) + sin²(x)
= 2sin²(x) + sin²(x)
= 3sin²(x)
what is the maximum force required to prevent a ball weighing 17.3 lb from rolling down a ramp which is inclined at 24.3 degrees with the horizontal
Answer:
• 06/21/17
What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined 39.0 degrees with the horizontal
I need help
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Step-by-step explanation:
A park is in the shape of rectangles. The park is 5/8 mile long and 2/3 mile wide. What is the area of the park?
Answer:
The area of a rectangle is the product of its dimensions. Your park has an area of
(5/8 mi)×(2/3 mi) = 10/24 mi² = 5/12 mi²
Step-by-step explanation:
The value of 8 in 5.18 is. of the value of 8 in 5.81
The value of 8 in 5.18 is 0.08.
The value of the 8 in 5.81 is 0.8.
What is place value?Place value is the basis of our entire number system. This is the system in which the position of a digit in a number determines its value.
The number 42,316 is different from 61,432 because the digits are in different positions.
here, we have,
from the above we got idea about place value.
hence,
The value of 8 in 5.18 is. 0.08
the value of 8 in 5.81 is 0.8
To learn more on place value click:
https://brainly.com/question/27734142
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Dinner costs $34.00 You also leave a 20% tip. How much did you pay
in total?
PLEASE ANSWER QUICKLY
Answer:
$40.80
Step-by-step explanation:
First, convert the 20% to an actual number that can be used in a calculation. For percent, this is always done by simply dividing the percent, in this case, 20%, by 100%. So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.
Second, you need to find out what 20% of your $34.00 meal cost is. This is always done by multiplying 0.20 by $34.00, or 0.20 x $34.00=$6.80. So, the amount of tip you are going to leave is $6.80.
This makes the total cost of your meal (to write on your charge slip or other payment)
$34.00 + $6.80 = $40.80.
Answer:
$40.80
Step-by-step explanation:
If you pay for the original cost of the dinner AND leave a 20% tip then the total amount paid will be 120% of the original cost (100% + 20% = 120%).
Convert 120% into a decimal: 120% = 120/100 = 1.2
So 120% of $34.00 = 1.2 × 34 = $40.80
PLZZZZZ HELP ME I WILL MAKE YOU BRAINLIEST ANWER PLZZZZZ THANKYOU!!!!!!
Answer:
Step-by-step explanation:
For the first one here is the answer:
Given.
Transitive property of equality- this is becasue the rule is if A=b and B=c then A=c. IN this situation its saying that a is parrelel to b and b is parralel to c therfore a is parrelel to c.
line A and d cross over at 90 degree angles making them perpendicular. -There should be a rule for this and if there is then write that rule down
Second answer:
Given.
Definition of a supplementary angle.
Definition of a supplementary angle
Definition of supplementary angles.
Alternate Exterior Angles Theorem
C=D
-Srry for the definiton of supplementary angles thing but thats the best answer for those.
Hope i helped
Help help help help math math
Answer:
Your answer is D.Divide
Step-by-step explanation:
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Hope you have a great day!