Tim says that if P is an odd number and Q is an even number
then P + Q -3 cannot be a prime number,
Which of the statements below shows that Tim is wrong?
A 7+2-3 = 6
B 49-3 = 10
C 4+1-3-2
D 1+4-32
HELP WILL MARK BRAINLIEST
Answer:
D
Step-by-step explanation:
since p is an odd number choice C can't be the answer because 4 is even number
Q is an even number so that choice B can't be answers because 3 is an odd number .
and for A 6 isnot a prime number so that it proves tim is correct.
but when we see D 2 is a prime number so that it shows tim is wrong.
3. What three numbers are the Pythagorean triple generated by using 4 for x and 1 for y. Remember to use the formulas:
a = x2 - y2, 6 - 2xy, and C = x2 + y2
O 6, 8, and 10
O 5, 11, and 12
O 8, 15, and 17
O 3, 5, and 8
Given:
Consider the three number are given by:
[tex]a=x^2-y^2[/tex]
[tex]b=2xy[/tex]
[tex]c=x^2+y^2[/tex]
To find:
The three numbers are the Pythagorean triple generated by using 4 for x and 1 for y.
Solution:
We have,
[tex]a=x^2-y^2[/tex]
[tex]b=2xy[/tex]
[tex]c=x^2+y^2[/tex]
Substituting 4 for x and 1 for y, we get
[tex]a=4^2-1^2[/tex]
[tex]a=16-1[/tex]
[tex]a=15[/tex]
Similarly,
[tex]b=2(4)(1)[/tex]
[tex]b=8[/tex]
And,
[tex]c=4^2+1^2[/tex]
[tex]c=16+1[/tex]
[tex]c=17[/tex]
The three three numbers are the Pythagorean triple are 8,15 and 17.
Therefore, the correct option is C.
Answer for brainliest
Answer:
(-4, -1) (see below)
Step-by-step explanation:
Substitution means that you actually replace, or "substitute," the value of the variable in.
Here, y = -1, so -3x - 8y = 20 can be written as:
-3x - 8 (-1) = 20
We can now solve for x:
-3x + 8 = 20
-3x = 12
x = -4
Putting this into (x, y) format equals:
(-4, -1)
PLease answer this for me !!
Answer:
X^7
Step-by-step explanation:
3+4=7
Emily can walk 3/4 of a mile in 1/4 of an hour.
At this same rate, how long does it take Emily to walk 1 mile?
Answer:
20 minutes
Step-by-step explanation:
Method 1:
(0.75)/(0.25)=(1)/(x)
0.75*1.333333=1, so multiply 0.25 by 1.333333 to find the value of x!
0.25*1.333333=0.33333, or one-third of an hour, or 20 minutes.
Method 2:
(0.75)/(0.25)=(1)/(x)
Cross-multiply
0.75x=0.25
(0.25)/(0.75)=x
x=0.33333 hours
Emily will use 20 minutes or 1/3 hour to walk 1 mile.
Note that 3/4 = 0.75
1/4 hour = 1/4 × 60 = 15 minutes
Let the amount of time that it takes Emily to walk 1 mile be represented by x.
Therefore, the equation to solve the question will be:
0.75 /1 = 15/x
Cross multiply
(0.75 × x) = (1 × 15)
0.75x = 15
x = 15/0.75
x = 20
Therefore, Emily will use 20 minutes or 1/3 hour to walk 1 mile.
Read related link on:
https://brainly.com/question/21405634
A probability experiment is conducted in which the sample space of the experiment is S={8,9,10,11,12,13,14,15,16,17,18,19}, event E={10,11,12,13}, and event G={16,17,18,19}. Assume that each outcome is equally likely. List the outcomes in F or G. Find P(F or G) by counting the number of outcomes in F or G. Determine P(F or G) using the general addition rule.
Answer:
i
Step-by-step explanation:
i
An equation is shown below: 4(x − 3) − 5(x + 1) = 3 Which statement shows a correct next step in solving the equation? (1 point) The equation can become 4x − 12 − 5x − 5 = 3 by applying the associative property of multiplication. The equation can become 4x − 3 − 5x + 1 = 3 by applying the associative property of multiplication. The equation can become 4x − 3 − 5x + 1 = 3 by applying the distributive property. The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Answer:
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
The wheel of a car rotated 1000 times in travelling a distance of 1.76 km. Find the radius of the wheel
Answer:
0.28m hope it help you☺........
Simplify the expression:
2(2 + 7b) =
Answer:
4 + 14b
Step-by-step explanation:
First, you need to distribute so,
2*2= 4 and
2*7b= 14b
help for brailest need help foe a grade
Answer:
1 4/9
Step-by-step explanation:
yw
n
What is the domain of the function y=3Vx?
There are 350 students at a middle school dance, where ratio of 7th graders to 8th graders is 3:4 how many of the students at the dance are 8th graders?
Answer:
150 7th Graders and 200 8th graders
Step-by-step explanation:
Basically, add the parts of the ratio together and create 7. Then, to find out how much 1 part is equal to, divide the amount of students by the number of parts - so it would be like 350/7 = 50.
So now you know that 1 part is equal to 50 students. From here, you can multiply the two amounts of parts by 50.
3 x 50 = 150 7th Graders
4 x 50 = 200 8th Graders
I need help with this problem
Answer:
m<S: 54
m<U: 60
Step-by-step explanation:
x + 4 + x + 68 = 180
2x + 72 = 180
2x = 108
x = 54
<S:
x
54
<U:
x + 4
54 + 4
60
Need help with 14!!! Please show ur work.My teacher is a Karen soooo yeah! Have a nice day
Answer:
A) 24 miles
Step-by-step explanation:
15/2.5 = 6 miles per inch
(6)(4) = 24 miles
A painting of length 36 cm and breadth 22 cm is drawn on a cardboard such
that there is a margin of 2.5 cm outside each of its sides. Find the total area of
the margin.
In a triangle PQR right angled at Q, QR = 24 cm and hypotenuse PR = 25
cm. Find the length of PQ.
If ∆ DEF ≅ ∆ MNL, then name the parts of ∆ MNL that are congruent to:
a) Angle F
b) Side DF
c) Angle E
d) Side FE
Raju’s father is 57 years old. He is three years younger than four times
Raju’s age. What is Raju’s age?
Answer:
1) 315cm^2
2) 7cm
3) :
a) Angle L
b) Side ML
c) Angle N
d) Side LN
4) 13 and a half years old
Step-by-step explanation:
Taco Bell had 60 orders. 60% were tacos and 40% were burritos. How many tacos is that?
Answer:
60% of 60 is 36. The answer should be 36
Step-by-step explanation:
60 / 100 * 60
0.6 * 60
36
Just divide the number by 100 and multiply it by the percentage.
Mark me as brainliest if you want to.
The point P(0,-2) lies on the curve with equation y=f(x). Find the image of P on the curve with equation y=f(x)-1
Answer:
The image of P on the curve is (0,-3).
Step-by-step explanation:
On the curve with equation y=f(x)-1
On this curve, the output is subtracted by 1 from the original function.
The point P(0,-2) lies on the curve with equation y=f(x).
Input: 0, output: -2
-2 -1 = -3
So
The image of P on the curve is (0,-3).
The ratio f sugar to flour in a cake recipe is 3 to 5. Marcus s going to follow the recipe to make a large sheetcake. He starts by putting 12 cups of sugar in a mixing bowl. How many cups of flour should he add?
Why do heavier things have more kinetic energy?
Answer:
hi have a good day :3
Step-by-step explanation:
Complete the following statement. The distance around the edge of a figure is its ____.
Answer:
Perimeter
Hope it helps!
The distance around the edge of a figure is its Perimeter.
To complete the following statement. The distance around the edge of a figure is its ____.
Perimeter is the measure of the length of the figure on its circumference.
Since in the question blank, space is given following the definition,
The distance around the edge of a figure is perimeter because the measure of the boundary of any figure is termed as its perimeter.
For example, the Perimeter of the rectangle is the total measure of the two-time measures of length and width. For the Perimeter of the square, it is 4 times the length of one side. For the Perimeter of the circle, it is 2π times of radius.
Thus, the distance around the edge of a figure is its Perimeter.
Learn more about perimeter here:
brainly.com/question/6465134
#SPJ5
Masamstha 31 this the to do this sum.
9a^2 - 6a
Answer:
9a^2 - 6a
factor it
3a(3a)-2×3a
take common
3a(3a-2)
Use the Distributive Property to complete the equivalent expression: 9(6y - 4) *
Answer:
54y-36
Step-by-step explanation:
9*6y=54y
9*4=36
Hope this helps :)
How do you solve the following equation
: X/-3 + 2=4
Answer:
For this equation you be inverse operation giving you the answer -6
further information down below :)
Step-by-step explanation:
Your goal for this is to isolate the variable which is x.
First, find the operation opposite of addition which is subtraction
When you add that operation to both sides with the constant(2)
2 and 2 cancel each other out, but to the for the term(4) 4-2=2
after that you have your new term which is x/-3=2
You do the same thing but to in division because the opposite of multiplication is division in this case you multiply -3 to both sides -3*-3 cancel each other out, now you have-3*2= negative times a positive equal negative in anyway so, overall you get -6.
To check:
you do the full equation now that you have isolated the variable, you now can do the operations normally which are. -6/-3=2 because when you divide a negative by a negative you get a positive end out with 2+2=4 which is correct and match the sum.
This means that our answer is correct :)
A 15 feet ladder leans against a wall at 52o. How far from the wall is the foot of the ladder?
Answer:
Step-by-step explanation:
"A fifteen-foot ladder leans against a wall at 52°."
Do you mean that the ladder makes a 52° angle with the wall?
x = distance between foot of ladder and base of wall
sin(52°) = x/15
x = 15sin(52°) ≅ 11.82 ft
Or, did you meant that the ladder makes a 52° angle with the ground?
cos(52°) = x/15
x = 15cos(52°) ≅ 9.23 ft
One-fifth the sum of one-half and one-third. WRITE IN A EXPRESSION FORM
Answer:
1/6
Step-by-step explanation:
1/2 + 1/3 = 5/6
1/5 of 5/6 = 5/30
5/30 can be simplified as 1/6.
Each peanut butter snack costs $2. Each chocolate snack costs $3. How much does it cost to buy 6 peanut butter snacks and 8 chocolate snacks? Write an equation.
Answer:
36
Step-by-step explanation:
8x3 is 24
6x2 is 12
when you add those together you get 36
Answer:
2 dollars x 6 Peanut butter snacks= 12 total
3 dollars x 8 chocolate= 24 total
24+12= 36 for the total all together
Step-by-step explanation:
You are buying 6 peanut butter snacks and they are $2 each so you multiply those numbers together for the total of Peanut butter snacks. You are also buying 8 things of chocolate and they are $3 each multiply them together you get the total for the chocolate. if you need the total for all together you add the totals together and you have your over all answer.
If sin(2x) = cos(x + 30"), what is the value of x?
20°
30°
500
1100
Answer:
2x=(x+30)
2x+x=30
3x=30
x=30÷3
x=10
Answer:
is 30
Step-by-step explanation:
2x=x+30
substract x
x=30
What is the slope of the line in the graph?
Answer:
m=1
Step-by-step explanation:
(-1,0)(0,1)
m=y2-y1/x2-x1
m=1-0/0-1
m=1
Pls help (5th grade)
Answer: 4.523
Here is an image that might help you understand placements.
Answer:
rounded to the nearest thousandth would be 4.523
A college student takes the same number of credits each semester. Before beginning college, the student had some credits
earned while in high school. After 2 semesters, the student had 34 credits, and after 4 semesters, the student had 58
credits.
Answer:
The student gets 12 credits per semester, and started college with 10 credits that he earned in high school.
Step-by-step explanation:
Given that a college student takes the same number of credits each semester, and that before beginning college, the student had some credits earned while in high school, while after 2 semesters, the student had 34 credits, and after 4 semesters, the student had 58
credits, to determine how many credits she obtains each semester and how many credits she had at the beginning of college, the following calculation must be performed:
(58 - 34) / 2 = X
24/2 = X
12 = X
34 - 12 x 2 = X
34 - 24 = X
10 = X
Thus, the student gets 12 credits per semester, and started college with 10 credits that he earned in high school.
Answer:
C(t) = 12t + 10
Step-by-step explanation:
We're given two data points, (2,34) and (4,58). We want to find an equation of the form C(t)=mt+b where m is the rate of change and b is the y-intercept.
First, we find the rate of change.
m=(58−34)/(4−2)
m=24/2
m=12
This rate of change means that the student earns 12 credits each semester.
Finally, we need to solve the equation C(t)=12t+b for b, or the y-intercept. We do this by plugging in one of our data points. We'll use (2,34).
C(t)=12t+b
34=12(2)+b
b=34−24
b=10
This y-intercept means that the student earned 10 credits in high school.
Now that we've found m and b based on the given data, we find that the equation is C(t)=12t+10.