Answer:
x(3y - 1) and (2a - 3)(2a + 3)
Step-by-step explanation:
(1)
3xy - x ← factor out x from each term
= x(3y - 1)
(2)
4a² - 9 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
4a² - 9
= (2a)² - 3²
= (2a - 3)(2a + 3)
4)
Which set of numbers are equivalent?
A)
5
5%, 0.5,
100
B)
8
8%, 0.08,
10
C)
10.
10%, 0.1,
100
12
D)
12%, 0.012,
100
Answer:
12%,0,012,
100 ok this answer
Pls I need to know!!
Help with number 8 please :)) <3
Answer:
A
Step-by-step explanation:
a = integer/whole number
Any whole number divided by 0 is 0.
0 is an integer/whole number.
Please help me with this it was due yesterday.
Answer:
domain= infinity on both sides. range= -3<y<infinity
Step-by-step explanation:
hope this helps
Have a nice day :)
y = -5
2x – 4y = 18
PLEASE HELP NO LINKS
LINKS=REPORT
Answer:
x= -1
Step-by-step explanation:
since y is -5 then we would put that in the second equation:
2x - 4(-5) = 18
then it’s:
2x + 20 = 18
Then we subtract 20 from both sides
2x = -2
Last we divide both by 2 and we get x = -1
Answer:
x= -1
Step-by-step explanation:
2x + 20 =18
2x = 18 - 20
x = -1
The first five terms in a pattern are shown below. -0.5, -0.25, 0 , 0.25, 0.5, . . . Which equation represents the pattern?
Answer:
x + 0.25
Step-by-step explanation:
In this equation, x is representing an integer ( - 0.5, - 0.75, 0, 0.25) whilst 0.25 is a constant
Please help with this problem.
Answer:
d = 28
r = 14
r² = 196
C = 87.92
Step-by-step explanation:
Given:
r = 14
To find diameter:
d = 2r
d = 2(14)
d = 28
To find r²:
14²
196
Circumference:
C = 2πr
C = 2(3.14)(14)
C = 87.92
What is the area of the base?
Answer:
24 in²
Step-by-step explanation:
Hello there!
the figure shown is a triangular prism
The base is the triangle
So we need to find the area of the triangle using this formula
[tex]A=\frac{bh}{2}[/tex]
where b = base and h = height
The base (triangle) has a base length of 8 inches and a height of 6 inches
Having found the information we needed, we plug it into the formula
So
[tex]A=\frac{6*8}{2} \\6*8=48\\\frac{48}{2} =24\\A=24in^2[/tex]
So the area of the base is 24 in²
The scatterplot shows the relationship between the daily high temperature and the number of people swimming in the community pool.
People Swimming
in Pool
у
Number of People Swimming
Temperature (°F)
Based on the scatterplot, approximately how many people will be swimming in the pool on a day when the high temperature is 77°F?
А
50
B
25
С
35
D
10
Answer:
C
Step-by-step explanation:
X-Axis goes by 4, so 77° falls around the 30-40 area.
Help this is due in 2 minutes
Answer:
The percentage change each year is 2%
Step-by-step explanation:
Generally, we can have an exponential equation written as;
f(t) = I( 1 + r)^t
where f(t) is the value at a certain time
I is the initial value at t = 0
r is the growth rate
t is the time we are looking at
Thus, we have it that;
1.02 = 1 + r
r = 1.02 -1
r = 0.02
So, let us write 0.02 as a percentage
We have this as 2/100 which is the same as 2%
The percentage change each year is 2%
In 1987, a survey of 1000 young people found that 540 said they smoked cigarettes, whilst
460 said they did not. In 2017, a similar survey of another 1000 young people found that
125 said they smoked cigarettes, whilst 875 said they did not.
Calculate the ratio of smokers to non-smokers in 2017. Give your answer in simplest form:
Show your workings.
[2 marks]
Answer:
1:7
Step-by-step explanation:
125:875
Then simply
The GCF between the two is 125:
125/125 = 1
875/125 = 7
So, the answer is 1:7!
A certain building has a triangular shaped face to link up of the sides of the triangular base or 145 feet 257 feet in 290 feet five find the area of the base of the building
Answer:
18617.66 ft^2
Step-by-step explanation:
sides of triangular base
a= 145ft ,
b = 257ft ,
c = 290ft
calculate the area of the base
The base is a scalene triangle hence the area is calculated as follows
s = ( a + b + c ) / 2
= ( 145 + 257 + 290 ) / 2 = 346
Area of triangle = [tex]\sqrt{s(s-a)(s-b)(s-c)} = \sqrt{346(201)(89)(56)}[/tex]
= 18617.66 ft^2
Pilar and Ramesh left a 20% tip after having dinner. The amount of the tip was $5. Pilar's dinner cost $15. Which equation can you use to find x, the cost of Ramesh's dinner?
Answer:
5x = 15?
Step-by-step explanation:
Find the median and mean of the data set below:
48, 50, 38, 4, 8, 46, 23
Answer:
the median is 38 and the mean is 31
Step-by-step explanation:
Answer:
Mean: 31, Median: 38
Step-by-step explanation:
Mean: 48 + 50 + 38 + 4 + 8 + 46 + 23 = 217 divided by 7 (the amount of numbers) = 31
Median: 4, 8, 23, 38, 46, 48, 50 (The middle number of the numbers in order from least to greatest)
(Please correct me if I'm wrong)
An encyclopedia entry is selected at random; word in that entry is selected at random
Dependent events
Independent events
Answer:
Independent events i believe
Step-by-step explanation:
can Someone help me
Answer:
1. congruent
2. congruent
3. not congruent
4. not congruent
5. congruent
6. congruent
7. congruent
8. congruent
9. congruent
Step-by-step explanation:
Step-by-step explanation:
there you go I hope this helps you
pls pleaase pls help marking brainlisr
Answer:
1
Step-by-step explanation:
In the dot plot above, the length of the coastline of each country in South America is shown in
thousands of kilometers (1000-km), rounded to the nearest thousand kilometers. According to
the dot plot, what is the mean length of coastline, in thousands of kilometers?
Answer:2
Step-by-step explanation:it’s the average
Answer:
2
Step-by-step explanation:
Given:
The length of coastline of each country in south America in thousands of kilometers.
To find:
The mean length of coastline, in thousands of kilometers
Explanation:
America is shown in thousands of kilometers so, using the given information
= 6(0) + 2(1) + 2(2) + 5(1) + 6(1) + 7(1)
= 30
= 30/15
= 2
Answer is 2 thousand kilometers
Help me please I'm very confused about this!
Answer:I think it's trying to find the area of which is a 5 times 2 = 10
Step-by-step explanation:
No files!!! Math work. Help.
Answer:
Number 6 would be (a) 88 degrees
Number 7 would be (c) 45 degrees
Step-by-step explanation:
What is this Geometry? I haven't done this in so long so i went to look it up online and was shocked because of how much i was overthinking it.
For number 6, since we already have the angle listed as 44 degrees, to find the arc degrees, we would multiply the 44 by two. The formula is basically mAB=2(m<C)=88.
For number 7, we already have the arc degrees, so we would have to divide by two in this case to find the angle. The formula for this would be m<X=1/2(mYZ)=45.
The ratio of fish to ducks at the water's edge was 5 to 2. If there were 28 in all, how many were fish?
Answer:
20 fish.
Step-by-step explanation:
Convert ratio to fraction:
There were 5 / (5 + 2) = 5/7 of fish.
So number of fish = 5/7 * 28
= 20.
Number Machine #1
We've built a machine that follows these instructions:
Subtract 1
Multiply by 3
If we put 6 into this machine, what will come out?
Subtract 1
Multiply by 3
Submit
6
Answer:
6-1=5 times 3 =15
Step-by-step explanation:
Add fractions with unlike denominators
Answer:
1 5/12 i think im sorry if i get it wrong.
Step-by-step explanation:
A formula for finding SA, the surface area of a rectangular prism, is
SA = 2(ab + ac + bc), where a, b, and c represent the lengths of the edges of the prism. What is the surface area of this prism if a = 12 inches, b = 6 inches, and c = 4 inches?
A.
B.
C.
D.
Step-by-step explanation:
SA=2*(12*6+12*4+6*4)
SA=2*(72+48+24)
SA=2*144
SA=288
A restaurant charged you $50 for the meal. You pay an 8% sales tax on the meal. How much was the tax?
A. $40.00
B. $4.00
C. $0.40
D $54.00
Answer:
The answer is B.4.00
Two new Clash of Clans games are coming out. Clash Heroes will cost $38 to download and $4 per month for membership. Clash Legends will cost only $20 to download but $6 per month for membership.
Write an equation for the cost of Clash Heroes:
Write an equation for the cost of Clash Legends:
Set your 2 equations equal to each other and solve to show when they would cost the same:
Which game is a better “deal” – show your work and label your answers!
Answer:
cl has a better deal
Step-by-step explanation:
ch=38+4m=50
cl=20+6m=50
ch=4*3 months =12+38=50
cl=6*5 months=30+20=50
PLEASE HELP !!!!!!!!
What is the arc measure of arc PQO? Type the answer as a number only.
Answer: !50 is the answer hope this helped
Step-by-step explanation:
Find the coordinates of the point for the reflection.
(-8,5) across the x-axis
Answer:
(-8, -5)
Step-by-step explanation:
If (-8, 5) is reflected across the x-axis, the x-coordinate stays the same (-8), but the y coordinate becomes -5. Hence the coordinates of the reflection are (-8, -5).
If point (-8, 5) is reflected across the x axis, the new point is (-8, -5)
What is transformation?
Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, rotation and dilation.
If point (-8, 5) is reflected across the x axis, the new point is (-8, -5)
Find out more on transformation at: https://brainly.com/question/4289712
Help please :(
CROWN ???
Answer:
7&8 both true
9 is false
Step-by-step explanation:
tghdhfshj
Answer:
True
True
False
Step-by-step explanation:
2(7) -3 = 14 -3 = 11
2(8) -3 = 16 -3 = 13
2(9) - 3 = 15
The answer has to be less than 15
Stacy has a spinner and a number cube after spinning and rolling the number cube she will add two number what is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4
Complete question :
Stacy has a spinner (1 - 4) and a number cube (1 - 6) after spinning and rolling the number cube she will add two number what is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4
Answer:
5 /24
Step-by-step explanation:
The sample space for the sun of the outcome of the spinner and rolled number cube ;
Sample space = total possible outcomes = 6 * 4 = 24
Required outcome = sum equals 3 or 4 = 5
P(obtaining a sum of 3 or 4) = required outcome / Total possible outcomes
P(obtaining a sum of 3 or 4) = 5 /24