Answer:
Darrell is 12 years old while Darrell is 18 years old
Step-by-step explanation:
Let Myles age be m and Darrell age be d
Single Myles is older, m > d
Square Darrell’s age and multiply by 2; d^2 * 2 = 2d^2
Subtract from the square of Myles age
m^2 - 2d^2
Result is 6 times the difference between their ages;
m^2 - 2d^2 = 6(m-d) •••••••••••(i)
When add Myles and Darrell age
m+ d
you get 5 times the difference between their ages 5(m-d)
m + d = 5(m-d)
m + d = 5m - 5d
5m - m = 5d + d
4m = 6d
m = 6d/4
m = 1.5d or 3/2d ••••••••(ii)
Put ii into i
(3/2d)^2 - 2d^2 = 6(3/2d - d)
9/4d^2 - 2d^2 = 6(1/2)d
Multiply through by 4
9d^2 - 8d^2 = 12d
d^2 = 12d
d^2 - 12d = 0
d(d -12) = 0
d = 0 or d-12 = 0
d = 0 or 12
d = 12 years
The age cannot be zero (if Darrel age is zero, then Myles age will be zero too, this cannot work as their ages are not equal)
So we choose 12 years
Recall ; m = 3/2 d = 3/2 * 12 = 18 years
can someone who KNOWS WHAT theyre doing and is good at angles please help
m1=51
m2=18
m3=123
m4=39
***remember the 180 rule, and supplementary/complementary angles!
180 rule: all triangle's internal angles add up to 180, this means if you know any two angles you can always find the last one
supplementary angles:
angles that add up to 180, 180 is a straight line so they can be found on almost all triangle problems.
if there is a straight line and you know one of the angles that is on the line, you can find the other one by subtracting it from 180
complementary angles:
same thing ^ but with 90
i hope my explanations make sense! let me know if you have any more questions :)
Need help (don’t give me inn correct answer and don’t comment if you don’t know)
Answer:
I believe that the answer is number 2
Step-by-step explanation:
Can some one help me ASAP please
Answer:
5
Step-by-step explanation:
What is the coordinate of point P on the line segment AB that is 3/4 of the distance from A to B for A(2,5) and B(6,9)?
Answer:
p is (3.71, 6.71)
Step-by-step explanation:
Given that p is at the distance of 3/4 from A to B
it mean that point p divides the line AB into 3:4 ratio.
and
if there are two points (x1,y1) and (x2,y22) which is divided by point p in the ratio m:n then
coordinates of point p (x,y) is given
p (x = (n*x1+m*x2)/m+n , y = (n*y1+m*y2)/m+n )
________________________________________________
Given the points AB
A(2,5)
B(6,9)
m:n = 3:4
thus,
p (x = (4*2+3*6)/7 , y = (4*5+3*9)/7 )
p (x = (4*2+3*6)/7 , y = (4*5+3*9)/7 )
p (x = (26/7 , y = 47/7 )
P ( x = 3.71, y = 6.71)
Thus, coordinates of point p is (3.71, 6.71) which is at 3/4 of the distance from A to B for A(2,5) and B(6,9)/
Q3. Kylie sits two maths test. She scores 19/25 in the first one, and 16/20 in the second one.
Which test has she done better in?
Answer: Kylie did better in the second one than she did in the first one
Step-by-step explanation:
If you do 19 divided by 25 you will get 0.76 so she got a 76% on the first test. Then if you do 16 divided by 20 you will get 0.8 so she got a 80% on the second test.
The polynomial p(x)=3x^3-5x^2-4x+4 has a known factor of (x-2)
Answer:
3x^2-x-2 or (x+1) (3x-2) (x-2)
Step-by-step explanation:
I'm assuming you have to divide:
(x-2)[tex]\sqrt{3x^3-5x^2-4x+4}[/tex]
Hope this helps.
Answer:
p(x)=(x+1)(3x-2)(x-2)
Step-by-step explanation:
What is the domain and range for the following function? f(x)=|x-2|+3
Domain: All real numbers. Inequality Notation: -infinity<x<infinity, Interval notation: (-infinity,infinity).
_______
Range: All real numbers greater than or equal to 3. Inequality notation: x ≥ 3, Interval Notation: [3,infinity).
11x - 8 = 4x - 3
solve for x
Answer:
7×=5 ×=5/7
Step-by-step explanation:
Evaluate 2√2/(√2-√3)
Whats the answer to this the domain of the function URGENT!!!!!!!!!!!!!
Answer:
I think it's d I'm not sure tho
Answer:
B
Step-by-step explanation:
I'm pritty sure it is B hopefully this helps.
Melissa shot a rocket 360 meters into the air, it took 4 seconds to fly that far. What’s the average speed of the rocket?
Answer:90meters per second
Step-by-step explanation:
What is the quotient?
(-3)
(-3)2
Og
9
O 9
Answer:
The answer to your problem is negative 9
x-5
x+3
What are the restrictions?
Let's simplify step-by-step. Sowwy im late
x- 5x + 3
= x + - 5x + 3
combine like terms:
= x + - 5x + 3
= (x + - 5x + (3)
= -4x + 3
what is the answer if u do x=25(x+4)
Answer:
-25 over 6 as a fraction or -4 and 1 over 6 as simplified fraction or 4.16 as a decimal
Step-by-step explanation:
hopefully that helps you
Convert to a decimal rounded to the nearest hundredth: 8/11
Answer:
.72 and on going
Step-by-step explanation:
Find the value of x. images attached
Answer:
The answer is option AStep-by-step explanation:
Since it's a right angled triangle we can use trigonometric ratios to find the value of x
To find the value of x we use tan
We have
[tex] \tan(26) = \frac{42}{x} \\ x \tan(26) = 42 \\ x = \frac{42}{ \tan(26) } \\ x = 86.1127613...[/tex]
We have the final answer as
86.113°Hope this helps you
You have started your own online business selling dvds. You sell twenty four DVD’s per week online. How many DVDs do you sell in six weeks?
Answer:
144 multiply 24 six times 24x6
Laura has 30 cupcakes she wants to give each friend 1/6 of her cupcakes how many cupcakes will Each friend get
Answer:
5 cupcakes
Step-by-step explanation:
=1x 30/ 6
=5
I hope it helps
Thank U
Answer:
No Of cup cakes laura has : 30
No of c Cupcakes She wants to give her friends:1/6
Cupcakes each friend got : 30 × 1/6
: 5
There fore Number of cupcakes each friend gets: 5 Cupcakes
What is the measure of angle F?
A. Cannot be determined
B. 65°
C. 55°
D. 75°
Answer:
65 degrees since both opposite sides are 10
Answer:
65 degrees
Step-by-step explanation:
Just took the test
What happends if you get a brainliest?
Answer:
it is needed to reach some ranks
Step-by-step explanation:
can I get brain liest?
1st shape has a 4 2nd shape has a 6 pls help-T T
I don’t know how to do this-
Answer:
2.5
Step-by-step explanation:
because you can tell by the numbers and how close they are then u have to divide
MiniMouse received an order of bows for her store. The order had 3 boxes containing bows and 2 bows that were not in a box. Each box contained an equal number of bows. The order had 146 bows. What is n, the number of bows which should be in each box? Write and solve the equation.
Answer:
Step-by-step explanation:
If Mini has a total of 146 bows, then you should subtract 2 because those are not in the boxes.
146 - 2 = 144 144 ÷ 3 = 48. This means that there are 48 bows in each box.
A department store buys 200 shirts at a cost of $4,800 and sells them at a selling price of $30
each. Find the percent markup.
Answer:
25%
Thats the answer according to my calculations.
Answer:25%
Step-by-step explanation:
(too lazy too write anything here)
Given h(x)=-3x-2,solve for x when h(x)=1
Answer:
-5
Step-by-step explanation:
The value of x for the given function h(x)=-3x-2 such that h(x) = 1 will be -1.
What is a function?A certain kind of relationship called a function binds inputs to essentially one output.
In other words, the function is a relationship between variables, and the nature of the relationship defines the function for example y = sinx and y = x +6 like that.
As per the given funciton,h(x) = -3x - 2
For h(x) = 1
1 = -3x - 2
1 + 2 = -3x
3 = -3x
x = -1
Hence "The value of x for the given function h(x)=-3x-2 such that h(x) = 1 will be -1".
For more about the function,
brainly.com/question/23712366
#SPJ2
The choir and band at Thomas Junior high's sold cookie dough for their fundraiser The choir sold the cookie dough for $2 per bucket and decided to spend $4 on material to make posters for advertising.the band sold the cookie dough for $3 per bucket but did not advertise for many bucket of cookie dough, x, would both clubs have the same profit?
Answer:
no.
Step-by-step explanation:
How many terms are there in the following expression: 3a+3ab+7b-4d?
Answer:
3
Step-by-step explanation:
no need for 6AM and sons to know what u should be a good job of the first day and sons and peele is the only one who is the only person in this one who
Answer:
There are 4 terms.
Step-by-step explanation:
3a
3ab
7b
4d
Complete the equation of the line through(−6,−5),(-4,-4)
Answer:
y=ax+b
bring in (-6,-5)
=>-5=-6a+b
=>6a-5=b
bring in (-4,-4)
=>-4=-4a+b
=>4a-4=b
b=6a-5=4a-4
6a-5=4a-4
2a=1
a=1/2
then b=6*(1/2)-5=-2
y=ax+b
=>y=(1/2)x-2
What is the app, oximate value of 8
to the nearest tenth?
Answer:
10
Step-by-step explanation:
All other tens values are too far
Answer:
10
Step-by-step explanation:
What is the lowest range of the function shown on the graph?
Answer:
C.-2
Step-by-step explanation:
The vertex is at (3,-2), this can find the lowest range because since both sides of the function go up from this point there will be no points beneath it. Since the range is Y value the minimum would be -2 because this is the Y value of the vertex. You can check the graph to prove this because there are not any y-values equal to less than -2.
rachelle can walk 2.5 miles in 40 minutes. at this rate how far
can she walk in an hour
Answer:
She could walk 3.75 miles in an hour.