Answer:
C
Step-by-step explanation:
sorry, I dont have time for a full explanation. maybe wait for the next person's answer too. just to verify mine.
hope this helps <3
Find an equation of the line that contains the point (4,-3) and is perpendicular to the line 2x-3y=4
HELPPPPPPPPPP PLISSSSSSSS
Answer:
Step-by-step explanation:
-3y = -2x + 4
3y = 2x - 4
y = 2/3x - 4/3
perp; -3/2
y + 3 = -3/2(x - 4)
y + 3 = -3/2x + 6
y = -3/2x + 3
What number is halfway between
1/5
and
4/15
Answer:
1/5+4/5
1×5/5+4×1/5
5/5+4/5
5+4/5
9/5
(9/5)/2
Find the total surface area of the rectangular prism
I need help quickly!!!
You solve a system of two linear equations by substitution. Your work results in a third equation, which leads you to conclude that the system has infinitely many solutions. Which of the following could be the third equation?
The options are:
5=0
-4=-4
2y=14
3x+10=16
Simplify, 4(x + 6) + 2 (3x- 5)
Answer:
10x + 14
Step-by-step explanation:
begin by distributing the numbers outside of your parentheses:
4x + 4(6) + 6x - 2(5)
4x + 24 + 6x -10
then just combine like terms:
4x + 6x + 24 - 10
10x + 14
Decide whether n = 9 is a solution to
the equation 2+n=7. Write yes or no
Answer:
No. The answer would be n=5
Step-by-step explanation:
You have to subtract the 2 from both sides to cancel it out on the left side. so you would be doing 7-2, not 7+2
find the value of x and y (5y-23) (2x+13) (3x) 47
Answer: I will tell you if you keep reading
Step-by-step explanation:
5y represents the mass of the sun and -23 is the degrees outside. So you have to find how many peices of chocolate bob has eaten in order to find the value (3x) 47
Which expression is equivalent to 4(3+5) - 3•9^2
Answer:
se eu não me engano é 11.962962963 por ai agora pega esse numero e faz como expressão equivalente ok
Step-by-step explanation:
espero ter ajudado.
does anyone know the answer
Answer:
yes me
Step-by-step explanation:
na jp ion know
Amaka buys 4 rulers and a pencil and these cost the same as 2 rulers and 4 pencils. If a pencil cost #8, how much does a ruler cost?
Answer: ruler cost $12
Step-by-step explanation:
step 1
Let cost of ruler be represented as r
and cost of pencil be represented as p
we were given that
4 rulers and a pencil and these cost the same as 2 rulers and 4 pencils which is expressed as
4r + p = 2r+ 4p
and cost of pencil= $8
therefore
sTEP 2--- Solving
4r+ 8 = 2r+ 4 x8
4r+ 8 = 2r+ 32
4r - 2r= 32-8
2r= 24
r= 24/2 = r= $12
David wishes to build a circular fish pond. The diameter of the pond is to be 3m.
a. How many lineal meters of bricks are needed to surround it? Round your answer to two decimal places.
b. What is the coast if the bricks are $45 per meters? ( Use your answer from part a.)
Answer:
9.42m , $423.9
Step-by-step explanation:
C = 2πR
so, 2*3.14*1.5
=9.42478m
9.42*$45
= $423.9
Evaluate the expression 6x+8 when x=2
The value of the expression is
A butterfly starts at 20 m and changes -16m ?
Answer:
it is at 4 meters
Step-by-step explanation:
20 - 16 = 4
Hope this helps!
Maybe brainliest?
Answer:
4 mters
Step-by-step explanation:
2x + 12 = 2(x+8)-4
need answer asap pls
Answer:
there are inifnite solutions
Step-by-step explanation:
Answer:X=-8
Explanation:
For every pound a company spends on advertising, it spends £0.26 on its website. Express the amount spent on advertising to the amount spent on its website as a ratio in its simplest form.
Answer:
Can you convert pounds to dollars?
Step-by-step explanation:
Write an equation of the given line that passes through the given point and has the given slope m
(-3,-11);m=1/2
The measure of one angle is thirteen less than five times the measure of another angle. The sum of the measures of the two angles is 140°. Determine the measure of each angle in degrees.
Answer:
The two angles are 25.5 and 114.5
Step-by-step explanation:
x = measure of one angle
5x - 13 = measure of the other angle {one angle is 13 less than 5 times the other}
x + 5x - 13 = 140 {sum of the two angles is 140}
6x - 13 = 140 {combined like terms}
6x = 153 {added 13 to each side}
x = 25.5 {divided each side by 6}
5x - 13 = 114.5 {substituted 25.5, in for x, into 5x - 13}
Is the circumference of a circle that the diameter is 9.4 cm
Answer:
To find the radius we must multiply by two to get 18.8
Then we multiply 18.8 for PIEEEEEE
3.14x18.8= 59.03
Step-by-step explanation:
I hope this helps!!!!! Please mark me brainliest.
Area is expressed in
Answer:
the answer should be square units
Select the expression that shows the application of the distributive property for
9(t - 5)
a
9t + 14
b
9 + t + 9 + 5
c
9t + 45
d
9t - 45
PLEASE HELP ME!!!
Answer:
c. 9t+45 that shows distributive property
where it shows a*(b+c)=(a*b)+(b*c).so,9(t+5)=9*t+9*5
The sum of 6 times a number and 8 times another number is 12. The difference of those numbers is 9. What are the two numbers
Answer:
(x,y): (6 , -3) or (-30/7 , 33/7)
Step-by-step explanation:
6x + 8y = 12
x = y + 9 or y = x+ 9
if x = y+9
6*(y+9) + 8y = 12
14y = -42
y = -3 and x = 6
if y = x+9
6x + 8*(x+9) = 12
14x = -60
x = -30/7 and y = 33/7
Mississippi has the lowest median income at 40.6 thousand dollars. Mississippi also has about 207 bachelor’s degrees per 1,000 people. What does the linear model estimate for the number of bachelor’s degrees per 1,000 people for Mississippi based on the median income? How good is this estimate?
Answer:
178
Step-by-step explanation:
Answer:
178
Step-by-step explanation:
I answered this so the other girl* can get the brainliest he deserves.
Find the missing dimension of a triangle with a base of 14.2 yd and a area of 63.9 yd
Answer:
7.78
Step-by-step explanation:
first you need to divide both numbersthen you nullify the sumyv6bgu6g6ogi5 bakaPls help I have no idea
Answer:
Step-by-step explanation:
If you connect the chord ends to the center you will see that you form a right triangle where:
[tex]r^2=16^2+\left(\frac{9x-15}{2}\right)^2\ and\ r^2=16^2+\left(\frac{7x+5}{2}\right)^2\\ \\
\text{From these equations we can see}\\ \\ (9x-15)^2=(7x+5)^2\\ \\ 9x-15=7x+5\\ \\ 2x=20\\ \\ x=10[/tex]
PLEASE HELP ME I BEG OF YOU
= d+5+d+5+d+5+d+5
= 4d+20
=4(d+5)
I hope this helps ♥☺️Find the slope of the line.
a.-7
b.7
c.-1
d.1
Answer:
(-1)
Since it is a downward slope with two equalized points x=7 and y=7. The slope is m = -1.
Answer:
d.1
Step-by-step explanation:
For this question, use change in y value from one point to another over change in x value from one point to another.
A culture started with 3,000 bacteria. After 4
hours, it grew to 3,600 bacteria. Predict how
many bacteria will be present after 10 hours.
Round your answer to the nearest whole
number.
P = Aekt
Answer:
4500
Step-by-step explanation:
4 hours = 3600
8 hours = 4200
10 hours = 4500
What is the value of the
expression below if a = -4, b = 5?
Answer:
56
Step-by-step explanation:
2a^2b+5ab-4
substitute a & b:
2(-4)^2(5)+5(-4)(5)-4
2(16)(5)+5(-4)(5)-4
160-100-4=56
Just carpet has eight different quality grades of carpeting. Three types are being selected for a corporate test on durability. how many different samples of size 3 can be taken without replacement? how many different samples of size 5 can be taken without replacement?
Answer:
When we have a set of N elements, the number of combinations of K elements (such that N ≤ K) from these N elements is:
[tex]C(N, K) = \frac{N!}{(N - K)!*K!}[/tex]
Then if we have 8 different types of carpet, and we want to see how many different samples of 3 types we can choose, we just need to replace N by 8, and K by 3 in the above equation:
[tex]C(8, 3) = \frac{8!}{(8 - 3)!*3!} = \frac{8!}{5!*3!} = \frac{8*7*6}{3*2} = 56[/tex]
So there are 56 different samples.
Now we can do the same, but this time we want to use 5 types of carpet, then we will have K = 5.
[tex]C(8, 5) = \frac{8!}{(8 - 5)!*5!} = \frac{8!}{3!*5!} = 56[/tex]
Again, we have 56 different samples.
When solving the inequality 3x - 2 < 8x + 10, the next line
becomes 3x < 8x + 12. Which property justifies this step?
(1) Distributive
(2) Associative
(3) Multiplicative Property of Equality
(4) Additive Property of Equality