PLZ HLP ME I BEG!!! 13 POINTS 1. During a trip, Amy had to take two different trains. Her first train traveled for 3hrs and the second train traveled for 4hrs Combined, the trains traveled 625 miles If the equation 3m + 4n = 625 represents this situation, which statements are true regarding this equation? select two that apply a. The variable m in the equation represents the speed of the second train. b. The variable n in the equation represents the speed of the first train. c. The variable m in the equation represents the speed of the first train. d. The variable n in the equation represents the number of hours Amy traveled on the second train. e. The variable m in the equation represents the number of hours Amy traveled on the first train. f. The variable n in the equation represents the speed of the second train. 2. What is the point-slope form of the equation for the line with a slope of −2 that passes through the point (4,−6)? a. y+6=−2(x−4) b. y−4=−2(x+6) c. y=−2x−6 d. y−6=−2(x+4) 3. Examine the following table that represents some points on a line. x | -6, -4, 6 y | -10, -9, -4 Which equations in point-slope form represent this line? Select all that apply. a. y+9=1/2(x+4) b. y+4=1/2(x−6) c. y+10=1/2(x+6) d. y+10=2(x+6) e. y+4=2(x−6) f. y−9=2(x−4)
what is the area of the figure below use 3.14 for pie
Answer:
Answer CL 586 cm^2
Step-by-step explanation:
Hello. It's pi, not pie.
The area of the triangle is A1 = (1/2)(base)(height) = (1/2)(18 cm)(7 cm), or
A1 = 63 cm^2.
The area of the rectangle is A2 = (base)(height) = (18 cm)(22 cm) = 396 cm^2.
The area of the semicircle is A3 = (1/2)(pi)(9 cm)^2 = 3.14(81 cm^2)(1/2) = 127 cm^2
Thus, the total area of the figure is A = 127 cm^2 + 396 cm^2 + 63 cm^2, or
586 cm^2 approximately.
please see the attached picture for full solution...
Hope it helps...
Good luck on your assignment....
Adiya said that the first step to solving the quadratic equation x2 + 6 = 20x by completing the square was to divide 6 by 2, square that value, and add the result to both sides. Is Adiya’s solution method correct? Explain
Answer:
No.
Step-by-step explanation:
In order to complete the square, you need to have the x values together, not the constant.
To complete the square correctly you would need to have x² - 20x = -6 and continue from there; divide 20 by 2 and square the result to get (x - 10)² = 96.
Answer:
Adiya’s method is not correct. To form a perfect square trinomial, the constant must be isolated on one side of the equation. Also, the coefficient of the term with an exponent of 1 on the variable is used to find the constant in the perfect square trinomial. Adiya should first get the 20x term on the same side of the equation as x2. Then she would divide 20 by 2, square it, and add 100 to both sides.
Step-by-step explanation:
is correct on edge :]
Which is the graph of f(x) =
6
5
4
3
3
2
2
2+
2
1
1
3 2 1
1
2
3
4
5
6
-3 -2 -1
1
2
3
4
56
-3 -2 -1
1
3
4 5 6
-3 -2 -1
1
2
4
6
Answer:
234958
Step-by-step explanation:
used caculator
Answer:
234958
Help me too!!
Work out:
2/7 divided by 7/8
Answer:
16/49
Step-by-step explanation:
2/7 X 8/7= 16/49
It is the rule of this question. Basically, when you see dividy you have to change dividy to times and flip the second fraction.
For example,
2/7 divided by 7/8
2/7 X 8/7= 16/49
I hope that helped you.
After divide the required solution of equation 2/7 divided by 7/8 is,
⇒ 16 / 49
We have to given that,
2/7 divided by 7/8
⇒ 2/7 ÷ 7/8
Now, We can divide the expression as,
⇒ 2/7 ÷ 7/8
⇒ 2/7 x 8/7
⇒ (2 × 8) / (7 × 7)
⇒ 16 / 49
Therefore, After divide the required solution of equation 2/7 divided by 7/8 is,
⇒ 16 / 49
Learn more about the divide visit:
https://brainly.com/question/28119824
#SPJ6
Convert 3.9x10^-6 to an ordinary number
Answer:
0.0000039
Step-by-step explanation:
3.9 x 10^-6 = 3.9 x 1/1000000 = 0.0000039.
Hope this helps
if 11 and 1/5 divided by 2 and three-fourths then what would the estimated answer
Answer:
[tex]4\frac{4}{55}[/tex]
Step-by-step explanation:
=> [tex]11\frac{1}{5}/2\frac{3}{4}[/tex]
=> [tex]\frac{56}{5}/ \frac{11}{4}[/tex]
=> [tex]\frac{56}{5} * \frac{4}{11}[/tex]
=> [tex]\frac{56*4}{5*11}[/tex]
=> [tex]\frac{224}{55}[/tex]
=> [tex]4\frac{4}{55}[/tex]
Answer:
see below
Step-by-step explanation:
11 1/5 ÷ 2 3/4
Change to improper fractions
(5*11 +1)/5 ÷ (4*2+3)/4
56/5 ÷ 11/4
Copy dot flip
56/5 * 4/11
The exact answer is
224/55 or 4 4/55
To estimate
Change the 56 to 55
55/5 *4/11
11*4/11
Canceling the 11's
4
Since we rounded the numerator down just a little, our estimate is a little low
What is the domain of this function?
{x|x>0}
{x|x < 8) {x|0< x 8)
{x|x < 0x>8)
Answer:
Step-by-step explanation:
x can take on values as small as 0, as large as 8 and all values in between. The third answer choice is the correct one.
Answer:
It's A.
Step-by-step explanation:
I took the test.
A garden is in the shape of a rectangle 85 m by 50 m.
Flowers are grown in 32% of the garden.
The rest of the garden is grass.
Work out the area of the garden that is grass.
50 m
Answer
2890
Step-by-step explanation:
2,890 meters^2 is grass
Step-by-step explanation:
First find the area of the garden
Area of a rectangle can be found using:
a=lw
a=85*50
a=4,250 meters^2
We know that 32% of the area is flowers, so we can multiply 32% and 4250
32%*4250
Convert 32% to a decimal by dividing by 100
32%/100=0.32
0.32*4250=1360
So, 1360 meters^2 is flowers.
The rest must be grass, so we can find the difference between the total area and the flowers
4250-1360=2890
Which is equivalent to 216 Superscript one-third?
Answer:
6
Step-by-step explanation:
216 raised to the one third power is the same as asking for the cubed root of 216. 6x6x6=216
hope this helps :)
Answer:
6
Step-by-step explanation:
6x6x6=216
Help? Please ...........
Answer:
It is a diagnal line that goes through (0,0) and (1,1) and has a slope of 1
Step-by-step explanation:
Plz Answer this question fast, Thank You
Answer:
162
Step-by-step explanation:
20736 x 729 x 4/216 x 64 x27
Now go ahead and do the cancellations
20736/216 =96
729/27 =27
64/4 =16
so you end up getting 96 x 27 x1 /26
96/16 =6
so you get 27 x 6 =162
Sue has 20 biscuits There are: 12 plain biscuits 5 chocolate biscuits 3 currant biscuits Sue takes two random biscuits Work out the probability that the two biscuits were not the same type
Answer:
58.43%
Step-by-step explanation:
The first thing we must do is calculate the probability of when both are equal, that is, take out two cookies of the same type, since we can calculate that they are not equal by means of their complement:
The probability that they are equal is:
P (plain, plain) = (12/20) (11/19)
= 132/380
P (chocolate, chocolate) = (5/20) (4/19)
= 20/380
P (currant, currant) = (3/20) (2/19)
= 6/380
The final probability would be the sum of these:
P (equal) = 132/380 + 20/380 + 6/380
P (equal) = 158/380
P (equal) = 0.4157
The probability that they are different is the opposite of the probability that they are equal, that is, the complement. Therefore, the probability that they are different is:
P (different) = 1 - 0.4157
P (different) = 0.5843
In other words, the probability would be 58.43%
Which congruence theorem can be used to prove △BDA ≅ △DBC? Triangles B D A and D B C share side D B. Angles C B D and A D B are right angles. Sides C D and B A are congruent. HL SAS AAS SSS
Answer:
A. Hypotenuse-leg (HL) congruence.
HL, when you have 2 right triangles and their hypotenuses are congruent you are able to say HL
Step-by-step explanation:
We know that the hypotenuse-leg theorem states that if the hypotenuse and one leg of a right triangle are congruent to hypotenuse and corresponding leg of another right triangle, then the triangles are congruent.
hypotenuse(AB) of △BDA equals to hypotenuse (CD) of △DBC.
BDA and DBC share a common side DB.
Using Pythagorean theorem we will get,
[tex]CD^{2}=DB^{2}+BC^{2}...(1) \\\\AB^{2}=DB^{2}+AD^{2}...(2)[/tex]
We have been given that CD=AB, Upon using this information we will get,
[tex]DB^{2}+BC^{2}=DB^{2}+AD^{2}[/tex]
Upon subtracting [tex]DB^{2}[/tex] from both sides of our equation we will get,
[tex]BC^{2}=AD^{2}\\\\BC=AD[/tex]
Therefore, by HL congruence △BDA ≅ △DBC.There are several congruence theorems that can be used to prove the congruence of triangles.
The congruence theorem to prove [tex]\mathbf{\triangle BDA \cong \triangle DBC}[/tex] is: (a) Hypotenuse Leg (HL)
From the complete question (see attachment), we have the following observations
The hypotenuse of triangles BDA and DBC are the same.Both triangles have a corresponding right-angleWhen two triangles have an equal hypotenuse, then the congruence of both triangles can be proved by Hypotenuse Leg theorem
Hence, the congruence theorem to prove [tex]\mathbf{\triangle BDA \cong \triangle DBC}[/tex] is: (a) Hypotenuse Leg (HL)
Read more about congruence theorems at:
https://brainly.com/question/19568627
Find the coordinates of P so that P partitions the segment AB in the ratio 3:1 if A(0,7) and B(−4,2) A. (-3, -10.75) B. (-3, 3.25) C. (-5, -4) D. (-3, -3.75)
Answer: B. (-3, 3.25)
Step-by-step explanation: Imagine that the line is divided into 4 segments. (3:1) Since A is at the upper right end of the line, go 3 segments down and left from A. That puts the x value at -3.
If you graph the line, it is evident that the y-value is at 3.25.
(It may be possible to use the Pythagorean Theorem to compute the lengths of line segments-- but this is a multiple-choice question!)
Answer:
B.) (-3, 3.25)
Step-by-step explanation:
I got it correct on founders edtell
Anybody know this ? Please help :(
Answer:
D
Step-by-step explanation:
5.50. 5.50+0.25= 5.75, 5.75+0.25= 6.00, 6.00+0.25= 6.25, 6.25+0.25= 6.50
Option D is the answer:
5.50, 5.75, 6.00, 6.25, 6.50...
What is the distance between the points (-6, 2) and (2,4)
Answer:
10
Step-by-step explanation:
Answer:
D = 10.2
Step-by-step explanation:
Distance Formula = [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
D = [tex]\sqrt{(2+6)^2+(4-2)^2}[/tex]
D = [tex]\sqrt{(10)^2+(2)^2}[/tex]
D = [tex]\sqrt{100+4}[/tex]
D = [tex]\sqrt{104}[/tex]
D = 10.2
Can someone help me it’s very easy I just need help!!
Answer:
198 m³
Step-by-step explanation:
Find the area of the triangular prism.
3 × 4 × 1/2 × 9
= 54
Find the area of the rectangular prism.
4 × 4 × 9
= 144
Add their areas.
144 + 54 = 198
The area of the composite shape is 198 m³.
What are the domain and range of f(x) = 2]-41?
Answer:
Domain: (-∞,∞)
Range: -39
Step-by-step explanation:
Sorry if the infinity symbols look very strange on here.
The total surface area of a right circular cone with the slant height 25cm is 704 sq. cm . Find the volume of the cone.
HELP PLEASE !!!
Answer:
area=πr√{h^2+r^2}
area=704cm^2, Height(h) =25cm
therefore,
by solving, πr√{h^2+r^2}=704cm^2
you will get value of r.
now, volume=πr^2×h/3
putting all values answer will come
Step-by-step explanation:
3/7 of students at a school are boys. If there are 2282 students at the school, how many are girls?
Answer:
2282 divided by 3over7
Answer:
1304
Step-by-step explanation:
2282:7 =326
326 . 3 = 978
2282 - 978 = 1304
Evaluate g(x) = 1.873 -0.0034x +0.5 for x = 1 and x = 2.
Answer:
g(1) = 1.8696
g(2) = 1.8662
Step-by-step explanation:
Simply plug in the x values into the equation in a calc and you should get your answer.
What is the total value in cents of x quarters, y nickels, and z pennies?
Answer:
25x + 5y + z cents
Step-by-step explanation:
1 quarter is worth 25 cents.
1 nickel is worth 5 cents.
1 penny is worth 1 cent.
Therefore, x quarters, y nickels and x pennies will be worth:
(x * 25) + (y * 5) + (z * 1)
= 25x + 5y + z cents
The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x – 72.5| = 4. What are the minimum and maximum temperatures in the house?
Answer:
Minimum temperature is 68.5 ° and maximum temperature is 76.5 °
Step-by-step explanation:
Given :
|x – 72.5| = 4.
When the Temperature of x is minimum So the Minimum temperature is
[tex]|x - 72.5| = 4\\it\ can \ be \ written \ as \\72.5-x=4\\-x=4-72.5\\x=68.5[/tex]
When the Temperature of x is maximum So the Maximum Temperature is
[tex]|x -72.5| = 4\\x-72.5=\ 4\\x=72.5+4\\x=76.5[/tex]
Therefore The minimum temperature is 68.5 ° and the maximum temperature is 76.5 °
Answer:
b
Step-by-step explanation:
becasue I did and and check with teacher
a culture started with 4,000 bactira . after 4 hours , it grew to 5,200 bactira . predict how many bactira will be present after 11 hours . round your answer to the nearest whole number p=AE^kt
Answer: 7300
Step-by-step explanation: 5200 - 4000 = 1200. 1200 divided by four hours is 300. So 300 bacteria grow per hour. Then you multiply 300 by 11 hours and get 3300 bacteria plus the starting 4000 and your final number is 7300
Question is attached below, Good Luck! I will Mark Brainliest for best answer!
Answer:
1960 cm^2
Step-by-step explanation:
Surface area:
Area of cross section x 2 = 1/2 x 20 x 21 x 2 = 420 cm^2
Area of slope = 29 x 22 = 638cm^2
Area of base = 22 x 20 = 440cm^2
Area of back = 21 x 22 = 462cm^2
Total Surface area = 462+440+638+420 = 1960cm^2
Hope this helps
8 Shadi has four bottles
The bottles hold 650 ml, 38 L 5020 ml and 0.045 L
Shadi want to use the bottle that holds closest to litre
Which bottle should be use? Show your working
Answer:
650 ml
Step-by-step explanation:
1 ml = 0.001 L
650 ml = .65 L
38 L = 38 L
5020 ml = 5.02 L
0.045 L = 0.045 L
If Shadi wants to use the one closest to 1 L then she would use the 650 ml bottle
A town has a population of 5000 and grows 3.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 7300?
Answer:
Step-by-step explanation:
This is an exponential function. In order to find the answer to the question, we need to first determine what the equation is that models this information. The standard form for an exponential function is
[tex]y=a(b)^x[/tex] where a is the initial value and b is the growth/decay rate. If the starting population is 5000, then
a = 5000
If the population is growing, that means that it retains 100% of the initial population and is added to by another 3.5%. So in a sense the population grows 100% + 3.5% = 103.5% or, in decimal form, 1.035. So
b = 1.035
Our function is
[tex]y=5000(1.035)^x[/tex] where y is the ending population and x is the number of years it takes to get to that ending population. We want to know how long, x, it will be til the population reaches 7300, y.
[tex]7300=5000(1.035)^x[/tex] and we need to solve for x. The only way to do that is by using logs. I'll use natural logs for this.
Begin by dividing both sides by 5000 to get
[tex]1.46=1.035^x[/tex] and take the natural log of both sides:
[tex]ln(1.46)=ln(1.035)^x[/tex]
The power rule for natural logs is that we can now bring the exponent down in front of the ln to get:
[tex]ln(1.46)=xln(1.035)[/tex] To solve for x, we now divide both sides by ln(1.035):
[tex]\frac{ln(1.46)}{ln(1.035)}=x[/tex]
Do that division on your calculator and get that
x = 11.0 years.
That means that 11 years after the population was 5000 it will be expected to reach 7300 (as long as the growth rate remains 3.5%)
Eve is organizing a race to raise money for a local children's hospital. She makes $20 for each 5K participant and $45 for each 10K participant. Her goal is to raise $9,500. If x represents the number of participants in the 5K race and y represents the number of participants in the 10K race, the linear equation for the given scenario is x + y = .
Answer:
225
Step-by-step explanation:
(9000/45) + (500/20) =200 + 25 = 225
x=25, y=200
Answer:
Step-by-step explanation:
It is given that x is the number of participants in the 5K race and y is the number of participants in the 10K race.
20x+45y=9500
Eve makes $20 for each 5K participant and $45 for each 10K participant. She wants to raise $9,500. The linear equation below represents the given scenario.
20x+45y=9500
20(200+45y=9500
4400+45y=9500
45y=9500
y ==113.3 (curvy equal sign)
If Eve raises exactly $9,500 and there are 220 5K participants, the number of 10K participants is found as shown below.
It is not possible to have 113.3 participants in the 10K race. So, no, it is not possible for Eve to raise exactly $9,500 if there are 220 participants in the 5K race.
Find the volume of this right rectangular
prism.
3 ft
15 ft
10 ft
[? ]ft?
Answer:
450 ft³
Step-by-step explanation:
V= lwh= 15*10*3= 450 ft³
Answer:
450 ft³
Step-by-step explanation:
Volume of a rectangular prism is lwh.
length × width × height
15 × 10 × 3
150 × 3
= 450
The volume of the right rectangular prism is 450 ft³.
