Which expressions are differences of squares?
Select each correct answer.
Answer:
First two are difference in squares.
81=9^2 225=15^2Answer:
The expression which denotes the differences of squares is
n² - 225
As here 225 is a square of 15.
Hope it will help :)❤
help please sos need help!!
Answer: Plant 1!
Step-by-step explanation:
If x) = 4x2 - 16 were shifted 5 units to the right and 2 down, what would the
new equation be?
O A. h(x) = 4(x - 5)2 + 14
B. h(x) = 4(x + 5)2 - 17
C. h(x) = 4(x-18)2 - 5
D. h(x) = 4(x - 5)2 - 18
Answer:
D
Step-by-step explanation:
To shift h units to the right, replace x with x - h
To shift h units to the left, replace x with x + h.
To shift k units up, add k to the end of the formula for the function.
To shift k units down, subtract k from the end of the formula.
Example: [tex]y=x^2[/tex]
[tex]y=(x+2)^2+6[/tex] is [tex]y=x^2[/tex] shifted left 2 units and up 6 units.
Caution: the right/left shifts sometimes look backwards!
What is the slope of a line that goes through (3, -2) and (-2, 5) ?
Answer:
-7/5
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(5-(-2))/(-2-3)
m=(5+2)/-5
m=7/-5
Type of angle:
Angle measures:
Answer:
The angle type is acute
Step-by-step explanation:
It's smaller than 90 degrees
6.
The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at 40 miles per hour, how long will it take to drive the same distance at 45 miles per hour?
A. 80 hours
B. 900 hours
C. about 1.78 hours
D. 2.25 hours
Answer:
C. about 1.78 hours
Step-by-step explanation:
Answer:
1.78 hours
Step-by-step explanation:
If t varies inversely with the speed, the formula for that is t= \frac{k}{r} . If t = 2 and r = 40, then we can solve for k, the constant of variation. Multiply both sides by 40 to get k = 80. Now we need to find the value for t when r = 45. Using the k value we just solved for, we will fill in the equation as t= \frac{80}{45} for a t value of about 1.78 hours
...............................................................................................................................................
Answer: about 1.78 hours
...............................................................................................................................................
t = k/r
2 = k/67
k = 134 (which happens to be the distance)
t = 134/r
t = 134/55
t = 2.436 hours
...............................................................................................................................................
The formula for this is t = k/r, read "t varies inversely as r". If the info they give us is 4 hours and 35 miles per hour, we find that k = 140. Now use that 140 in another equation to solve for t: t = 140/45, and t = 3.1 hours
...............................................................................................................................................
t = k/r\
4 hours and 35 miles per hour,
we find that k = 140.
Now use that 140 in another equation to solve for t:
t = 140/45, and
t = 3.1 hours
If you were to 'unroll' the cylinder you would find the side is actually ALWAYS a rectangle when flattened out?
Answer:
Yes
Step-by-step explanation:
It's harder to explain but think logically about it or get or get a piece of paper. Then roll it up in as many different ways that u can think of into a cylinder. If u unroll it then I I'll always be a rectangle
Graph y=2x^2 please help
Answer:
there you go
Step-by-step explanation:
3. The fish tank shown at right needs to be cleaned. The cleaning product instructions state that three drops should be put in the tank for every 140 cubic inches of water. How many drops of cleaner should be used?
Drops = 27
First, we need to find the volume of the given tank using the following equation
[tex]Volume = Length*Width*Height\\Volume =14*9*10\\Volume =1260\\[/tex]
Now that we know the volume, we need to find out how many drops that we need to use. We can find that out using the following equation
[tex]Drops = 3\frac{Volume}{140} \\Drops = 3\frac{1260}{140} \\Drops = 3(9) \\Drops = 27[/tex]
A 10 cm line segment is drawn from the center of the circle to a point on the circle. How long is the diameter of the circle in centimeters? Answer using only a number.
Answer:
do it yourself
Step-by-step explanation:
djhdsaiwhjqaa
2. The fabric wall hanging has an area of
112 square feet. The width is 8 feet.
What is the length?
Answer:
length = 14 feet
Step-by-step explanation:
112/8 = 14 feet
Answer:
14
Step-by-step explanation:
well we already can tell the no number under 10 will be eligible
so lets keep going
11, no it would only make 88,
12=96
13=104
14=112
the answer is 14
Do Whole numbers include negative numbers? Please help, thanks!
Answer:
negative numbers aren't whole numbers but they are considered to be integers
Answer:Whole numbers don't include negative numbers, fractions, or decimals.
Step-by-step explanation:
depends please comment give more ifnomation on what you are saying if you dont understand
Daniel has 5 tiles, numbered 1 to 5, in a box.
* He randomly pulls out a tile and records the number.
* He places the tile bak into the box.
* He then pulls out another tile and records the number.
What is the probability the sum of the numbers on the two tiles is 8?
Group of answer choices
1/5
3/5
1/25
3/25
Answer:
3/25
Step-by-step explanation:
that's the answer I don't how to explain it
Answer: 1/25
Step-by-step explanation: The theoretical probability for any of the 5 tiles to be drawn is 1/5
1/5 x 1/5= 1/25
Are these two angles complementary, supplementary, or neither? NEED HELP ASAP
A Complementary Angles
B Supplementary Angles
C Neither
Answer:
A Complementary Angles
Step-by-step explanation:
How do I find the volume of this?
Answer:
(64+320π) cm^3
Step-by-step explanation:
The volume of a cube is the length*width*height, so
the volume of this cube is 4*4*4=64 cm^3
The volume of a cylinder is the base*height
The base of a cylinder is the area of a circle, which is π*the radius of the circle squared
The diameter of the circle base is 16, and the radius is half the diameter, so it is 16/2=8.
The area of the base of the cylinder is π8^2=64π
Now, multiply the base by the height, 5
64π*5=320πcm^3
We now have the volume of the cube and the volume of the cylinder, so now we just add them:
(64+320π) cm^3
can someone do #2 pls
Answer:
its f
Step-by-step explanation:
El árbol del Tule es un frondoso Sabino que tiene 14 metros de diámetro
de más de 30 personas tomadas de la mano para poder rodearlo en su totalidad.
en su tronco y una circunferencia mayor de 45 metros, mismo que requiere
Cuando el angulo de inclinación del sol es de 35°, este milenario árbol
proyecta una sombra que mide 295 metros. Con estos datos, ¿es posible
conocer la altura de este icono de nuestro estado?
Evaluate the function: f(-1/2)=8(-1/2)-3
Answer:
[tex]f=14[/tex]
Step-by-step explanation:
help pls ill give brainliest
Jamir loves baseball! He collects baseball cards. He had a total of 50 cards. He gave his best friend Jakobi 10 of his cards, and his brother 15. What fraction of cards does Jamir have left?
Answer:
1/2
Step-by-step explanation:
10+15=25
i love baseball too i play it
Answer:
1/2
Step-by-step explanation:
original amount 50
what he gave away 10+15 = 25
50-25= 25
he has 25 left
25/50 = 1/2
hereeeeeee plsssssss answeeeeerrrr im desperateeeee wil give brainliest plus 25 points!!
Answer:
b
Step-by-step explanation:
Answer:
second one
Step-by-step explanation:
look at the lines. the first line is at the 58 mark.
next one is at the 70, then 78, 86, and 96.
Which expression is equivalent to if no denominator equals zero? A. B. C. D.
Answer:
Answer: C. -r/3
Step-by-step explanation: I got a 100% with that as my answer. I hope it helps.
Solve the system of linear equations by substitution.
2-y= 5
x + 3y = 9
The solution is (OO).
Answer:
x = 13, y = -3
Step-by-step explanation:
The surface area of a sphere is 9\piπ cm2. What is the volume?
Answer:
[tex] \frac{9}{\pi} = 4 \times \pi \times {r}^{2} \\ {r}^{2} = \frac{9}{4 {\pi}^{2} } \\ r = \frac{3}{2\pi} \\ volume = \frac{4}{3} \times \pi \times {r}^{3} \\ v = \frac{4}{3} \times \pi \times \frac{27}{8 {\pi}^{3} } \\ v = \frac{9}{2 {\pi}^{2} } [/tex]
Shen paid $14.98 for a 7.26 KG bag of dog food. A few weeks later he paid $17.54 or 7.94 kg bag. Find the unit price for each bag.
Answer:
1. Shen payed around $2.06 for the first bag of dog food.
2. Shen payed around $2.21 for the second bag of dog food.
Step-by-step explanation:
First, you have to do 14.98/7.26 to get around 2.06
Then, you do 17.54/7.94 to get around 2.21
Hope this helps!
HELP MEEEEEEEEEE SOOOOOO EASY PLEASE AND BRANLIEST TOOOOOO (07.04 LC)What is the solution to the equation fraction 1 over 3x = 6?
x = 18
x = 2
x = fraction 1 over 2
x = fraction 1 over 18
Answer:
x = 2
divide each term by 3 and simplify.
Answer:
I did the quiz and it is B
Step-by-step explanation:
PLS DO THIS
NO LINK I WILL REPORT U
Answer:
The mode is the number that occurs the most which would be 8.
Step-by-step explanation:
For example
2, 3, 4, 4, 5
The mode would be 4 since it's the most frequent.
A bag contains 3 red and 2 blue counters. A counter is picked at
random and then replaced, 40 times. How many red counters do
you expect?
Answer:
24.
Step-by-step explanation:
The fraction of red counters in the bag = 3/5.
So you'd expect 3/5 * 40
= 120/5
= 24.
(help pls)
1. what is the probability of an event if event will never happen?
a. 0
b. 1
c. ½
d. ¼
2. which of the following can be the probability of an event?
a. -0.4
b. 1.004
c. 18 over 23
d. 10 over 7
Answer:
[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ♡ ANSWER ♡ }} \mid}}[/tex]
➳ 0.
➳ 18 over 23.
Answer:
0 is the correct answer if you won't understand than contact me
Use the value 3.14 for pi and do not round your answers. Be sure to include the correct units in your answers
Answer:
C= pi x diameter
5 x 3.14 = 15.7
hope that answers your question
Step-by-step explanation: