Answer:
Step-by-step explanation:
speed of train=distance/time=243/4=60.75 miles per hour
speed of car=65 miles per hour.
car is moving faster than train.
Find the distance between these two points: A(-3,-5) and B(-2,5)
3
10
5
3.3
Answer:
The answer is 10Step-by-step explanation:
The distance between two points can be found by using the formula
[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\[/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
A(-3,-5) and B(-2,5)
The distance between them is
[tex] |AB| = \sqrt{ ({ - 3 + 2})^{2} + ({ - 5 - 5})^{2} } \\ = \sqrt{ {1}^{2} + ( { - 10})^{2} } \\ = \sqrt{1 + 100} \: \: \: \: \: \: \: \: \: \\ = \sqrt{101} \\ = 10.04987562...[/tex]
We have the final answer as
10.0Hope this helps you
Answer:
i think it is 10 but .-.
Step-by-step explanation:
i graphed it o.o
Evaluate the expression 3+ [5(2-3) - 6]
Answer:
-8
Step-by-step explanation:
Why is 9.68 an irrational number
An irrational number is a number that cannot be represented by a fraction, or must be represented by other irrational numbers. In this case, however, 9.68 can be represented by 9 17/25 , so 9.68 is NOT an irrational number.
the two angles are supplementary if a=19x+3 and b= 21x +17 solve for x and find the measure of each angle
Answer:
x = 4
a = 79
b = 101
Step-by-step explanation:
Supplementary means equal to 180° after all angles are added together.
a=19x+3
b= 21x +17
(19x+3) + (21x +17) = 180
19x + 3 + 21x + 17 = 180
40x + 20 = 180
40x = 160
x = 4
a = 19(4)+3 = 79
b = 21(4) +17 = 101
Anyone please can you tell me the scale factor for this? I don’t wanna fail class :(
Line EF is 3 units long
Line CD is 8 units long
If you are scaling EF up to CD the scale is 8/3 = 2 2/3 ( 2.67)
If you are scaling CD down to EF the scale is 3/8 (0.375)
bruh please help i’ve been trying to do this for two days and i can’t figure it out :// pls help lol i’m struggling
Answers:
x = 13
y = 24
=========================================================
Explanation:
Refer to the diagram below.
The triangle has interior angles (7x-31), 63, and some unknown angle, which we'll call z. This angle z is congruent to (5x-8) as the angles are alternate interior angles.
Alternate interior angles are congruent when we have parallel lines like this.
So z = 5x-8
Add up the three angles inside the triangle, set the sum equal to 180, and solve for x
(angle1)+(angle2)+(angle3) = 180
(7x-31)+63+(5x-8) = 180
12x+24 = 180
12x = 180-24
12x = 156
x = 156/12
x = 13
--------------------------
The angle z mentioned earlier is adjacent to the (4y+27) angle. These two angles form a straight line. They are considered a linear pair. This means they are supplementary (they add to 180)
z+(4y+27) = 180
(5x-8)+(4y+27) = 180
5x + 4y + 19 = 180
5(13) + 4y + 19 = 180
65 + 4y + 19 + 180
4y + 84 = 180
4y = 180-84
4y = 96
y = 96/4
y = 24
What is greater 14/8 or 1 3/4
14/8
Step-by-step explanation:
Answer:
13/4 is greater
Step-by-step explanation:
14/8 or 13/4
= 14*1/8*1 = 13*2/4*2
= 14/8 =26/8
14/8<26/8 which means
14/8 < 13/4
The graph below is increasing on (-3,infinity)
True or false
What is the answer
2x +3(x-1)=7x+1-2(x+2
Answer:
0=0 true for all x
Step-by-step explanation:
[tex]2x+3\left(x-1\right)=7x+1-2\left(x+2\right)\\\\[/tex]
[tex]2x+3x-3=7x+1-2\left(x+2\right)[/tex]
[tex]5x-3=5x-3[/tex]
Hope this help ya
<3
Red
Which function has a greater degree?
Answer:
I think it's either B or C because A and D don't make sense in my opinion.
Step-by-step explanation:
The degree of the p (x) is greater because r (x) is quadratic.
What is Quadratic equation?An algebraic equation with the second degree of the variable is called an Quadratic equation.
Given that;
The function p (x) is,
⇒ p (x) = 4x³ - 2x² + 15
And, The function of r (x) is find by table.
Here, By the given table;
The degree of r (x) is 2, because it is quadratic.
And, The degree of p (x) is 3.
Thus, We can conclude that;
The degree of the p (x) is greater because r (x) is quadratic.
Learn more about the quadratic equation visit:
brainly.com/question/1214333
#SPJ5
Laurel ran 3 miles in 24 minutes.At that rate,how long will it take her to run 7 miles?
Answer:
it took her 60 mins which is a hour
Step-by-step explanation:
you would simply add 24 plus 24 and get 48 then u would take 24 and divide that by 2 and get 12 and then u would add 48 and 12 and get the final answer of 60
Answer:
it would take laurel 56 minutes to run 7 miles.
Step-by-step explanation:
She has to run 7 miles, so if she can run 3 in 24 minutes, you can double that time to 48 minutes to run 6 miles, on top of adding another 8 minutes due to 1/3 of 24 (the third being equal to 1 mile since 24 is 3 miles) being 8, leaving you with 56 minutes for her 7 mile run.
Li walks at a constant rate of 7 ft. in 4 seconds. The table shows the relationship of feet to seconds. What is the constant of proportionality for the relationship of feet to minutes? (1 minute=60 seconds) *
10 points
Answer:
The rate is 1.75 feet/seconds or 105 feet/minute.
Step-by-step explanation:
Given that,
Li walks at a constant rate of 7 feet in 4 seconds
To find the constant of proportionality, divide 7 feet by 4 seconds.
So,
[tex]k=\dfrac{7\ \text{feet}}{4\ \text{seconds}}\\\\k=1.75\ \text{ft/s}[/tex]
1.75 ft/s is the constant of proportionality
We know that, 1 minute = 60 seconds
k = 105 feet/minute
So, the rate is 1.75 feet/seconds or 105 feet/minute.
???????????????????????????
Answer:
Erica has 15 pieces of candy left
Step-by-step explanation:
Mark me brainliest!!!!
She had 45 pieces to start with then she gave her friends 1/3 which leaves her with 15 pieces of candy left. Then she eats 1/6 of the candy she had left so now she only has 25 left and then the next day she eats 10 more pieces which leaves her with 15 pieces of candy left.
Ricky says (x5)(x3) = x15 Rocky says (x5)(x) = x ? Who is correct? Why?
Answer:
1.rocky
Step-by-step explanation
1.we have the add the powers of x,not multiply.
By understanding the concepts of division and multiplication of exponents, we can say that Rocky and Kay are correct.
What is division and multiplication of exponents?If we are multiplying similar bases, we simply add the exponents. If we are dividing, we simply subtract the exponents.
[tex](x^{5})(x^{3}) = x^{5+3}=x^{8}\\ \\ \frac{x^{12}}{x^{8} } = x^{12-8} = x^{4}[/tex]
Learn more about division and multiplication of exponents here
https://brainly.com/question/3668921
#SPJ3
1. Jenny is organising a barbecue. There are 30 bread rolls in a pack. There are 16 sausages in a pack. She needs exactly the same number of bread rolls as sausages. What is the smallest number of each pack she must buy?
Answer:
2. Tom, Sam and Matt are doing a show by counting drum beats .They decided to donate the collecting money for the poor children for their studies. Tom hits a snare drum every 2 beats. Sam hits a kettle drum every 5 beats. Matt hits a bass drum every 8 beats. Tom, Sam and Matt start by hitting their drums at the same time. How many beats is it before Tom, Sam and Matt next hit their drums at the same time? What value you can see in their act
Answer:
If you answer I promise I will make you the brainiest, like and I will vote 5
Answer:
Step-by-step explanation:
First find the LCM of 30, 16. This will give the common number of sausages and bread rolls
30 = 2 * 3 * 5
16 = 2 * 2 * 2 * 2
LCM = 2* 2 * 2 * 2 * 3 * 5 = 240
240 sausages and 240 bread rolls
Number of Sausage pack = 240 ÷ number of sausages in a pack
= 240 ÷ 16
= 15
Number of bread roll pack = 240 ÷ number of bread rolls in a pack
= 240 ÷ 30
= 8
Jenny should buy 8 pack of bread rolls and 15 pack of sausage
2) LCM of 2 , 5 , 8 = 40
Tom, Sam, Matt will hit their drum same at 40 minutes
Number of beats hit by Tom before reaching 40 minutes = 40/2 =20 hits
Number of beats hit by Sam before reaching 40 minutes = 40/5 = 8 hits
Number of beats hit by Matt before reaching 40 minutes = 40/8 = 5 hits
A container of colored candy contains 10 red candies, 11 yellow candies, 8 green
candies, and 8 blue candies. Which will have a probability closest to 0.0?
O A. drawing a red or blue candy
OB. drawing a red, yellow, or blue candy
O C. drawing a yellow or blue candy
OD. drawing a green, yellow, or blue candy
compare the linear functions expressed by the equation y equals negative x + 3 and buy data in the table explain how to determine if these two are the same function Express in different ways
Answer:
When a linear function is expressed in different forms, its slope and y- intercept remain the same. The slope from the equation is -1, and the y intercept from the equation is 3. The slope from the table is -1, and the y intercept fron the table is -3.
Step-by-step explanation:
I did it
Elene went to a store where you can scoop your own popcorn and buy as much as you want. She bought 10 ounces of spicy popcorn for 2.50. How much does popcorn cost per ounce? How much popcorn can you buy per dollar? Write two different equations that represent this situation. Use for ounces of popcorn and for cost in dollars.
Answer: See explanation
Step-by-step explanation:
Fron the question, we are informed that she bought 10 ounces of spicy popcorn for $2.50.
a. How much does popcorn cost per ounce?
1 ounce of popcorn = $2.50/10 = $0.25
b. How much popcorn can you buy per dollar?
Since 1 ounce of popcorn cost $0.25, $1 can buy popcorn worth:
= $1/$0.25
= 4 ounce of popcorn.
The relationship between the ounce of popcorn and the amount spent is an illustration of a linear function.
The cost per ounce is $0.25The amount of popcorn for $1 is 4 ouncesFrom the question, we have:
[tex]\mathbf{10oz - \$2.50}[/tex]
(a) The cost per ounce
To do this, we simply divide both sides by 10
[tex]\mathbf{Cost = \frac{\$2.50}{10oz}}[/tex]
[tex]\mathbf{Cost = \$0.25/oz}[/tex]
Hence, the cost per ounce is $0.25
(b) Popcorn for $1
To do this, we simply divide both sides by 2.5
[tex]\mathbf{Popcorn- \frac{10oz}{\$2.50}}[/tex]
[tex]\mathbf{Popcorn- 4oz/\$}[/tex]
Hence, the amount of popcorn for $1 is 4 ounces
(c) Represent as equations
In (a), the cost per ounce is $0.25.
So, the equation is:
[tex]\mathbf{y = 0.25x}[/tex]
In (b), the amount of popcorn for $1 is 4 ounces
So, the equation is:
[tex]\mathbf{x = 4y}[/tex]
Where: x represents the size of popcorn, and y represents the cost.
Read more about linear functions at:
https://brainly.com/question/21107621
pls help
A:1/360
B:1/180
C:1/90
D:1/100
Answer: A) 1/360
This is because there are 360 degrees in a full circle.
3/5 as an equivalent fraction
Answer:
6/10 or 36/60
Step-by-step explanation:
You see to get an equavilent fraction all you have to do is multiply by two then, later on, that same number.
Hope this helps :)
Answer:
6/10 or 9/15
Step by step:
3/5×2/2=6/10
3/5×3/3=9/10
HELP MEE
2. The scale on a map is 1 cm: 7 km. If two cities are 14 cm apart on
the map, what is the actual distance between the cities?
0 2 km
686 km
098 km
O 14 km
15 cm * (7 km / 1 cm) = 105 km
Answer:
98 km, if i'm not wrong
Step-by-step explanation:
I believe it would be 98km because wouldn't you just multiply 14 x 7?
Offering lots of points for the right answer! Please help with this question, thank you!
Answer:
Rotate EFG around point E by 90 degrees clockwise and then translate downwards.
Rotate EFG around point F by 90 degrees counterclockwise and then reflect on a horizontal line e is on, and then translate EFG onto triangle PQR
Step-by-step explanation:
Not going to lie, they made it a lot harder without coordinates... so sorry no explanation...
Find the surface area of the square pyramid (above) using its net (below). *4 by 3* CAN SOMEONE PLZ HELP ME ASAP!!!???
Answer:
24 units squared
Step-by-step explanation:
you have to first find the area of the base, which is 4 * 4 which is 16. then, to find the area of the triangles, you multiply the base by height, 4 * 3 = 12, and since we have 4 triangles, and one triangle would be (1/2) * base * height, you can multiply this result by 2, which would equal 24
Evaluate y(-4) - 8x when x = 5, y = -1
Answer:
−36
Step-by-step explanation:
angle 7
angle 1
angle 4
angle 3
angle 2
angle 8
Answer:
The answer is angle 7, 3, and 2
Step-by-step explanation:
Angle 7 is vertical, angle 3 is alternate exterior, and angle 2 is corresponding.
Answer:
2, 7, 3
Explanation:
7= Vertically opposite
2= Corresponding
3= Vertically opposite to 2
PLEASE HELP MEH IM NEED THIS NOW PLEZZ
What is x ? -2x + 3 < 5
Answer: x>-1
Step-by-step explanation: I know this because I solved this equation. I know that is not a good explanation but I know it is right.
Answer:
x > -1
Step-by-step explanation:
-2x + 3 < 5
subtract 3 from both sides of inequality
-2x < 2
divide both sides of inequality by -2. Keep in mind whenever you divide or multiply by a negative number to both sides of inequality the symbol flips.
x > -1
What is the slope of the line parallel to the line Y equals - 3X -8
Answer:
The slope is still -3x. (-3)
Step-by-step explanation:
If a line is parallel to another line, all that's different about it is the location including the y intercept. This means the slope stays the same.
What is the length of AC?
B
181
1
1
140 - X
A
A. 112
B. 120
C. 105
D. 126
Answer:it’s 126
Step-by-step explanation:
The length of AC will be 126. Option D is correct. Similarity of the triangle is applied to find the value of AC.
What is SAS similarity theorem?ΔABC ~ ΔDEF only if ratio of two sides of ΔABC and corresponding two sides of ΔDEF is equal, and the angle included in both sides are congruent.
Suppose the two sides of ΔABC are AB and BC, and that of DEF be DE and EF, then for SAS similarity, we need
From the similarity of the triangle;
[tex]\rm \frac{AB}{ED} =\frac{AC}{EC} \\\\ \rm \frac{81}{9} =\frac{140-x}{x} \\\\ 9x=140-x\\\\ 10x=140 \\\\ x=14[/tex]
The measure of AC is;
AC=140-x
AC=140-14
AC=126
The length of AC will be 126.
Hence,option D is correct.
To learn more about the SAS similarity theorem, refer;
https://brainly.com/question/22472034
#SPJ2
1.55555556
Turn the repeating decimal into a fraction
Answer:
14/9
Step-by-step explanation:
Yea that is the answer...
solve 2g+19+4g-13+6(g+1)
Answer:
19g+7?
Step-by-step explanation:
2g+19+4g-13+6g+1
19g+7