Answer:
x = -5/2
Step-by-step explanation:
2(x−1)=4x+3
Step 1: Simplify both sides of the equation.
2(x−1)=4x+3
(2)(x)+(2)(−1)=4x+3(Distribute)
2x+−2=4x+3
2x−2=4x+3
Step 2: Subtract 4x from both sides.
2x−2−4x=4x+3−4x
−2x−2=3
Step 3: Add 2 to both sides.
−2x−2+2=3+2
−2x=5
Step 4: divide all by -2
-2x/ -2 = 5/-2
x = -5/2
Brainliest to anyone who can answer and show working out :)
Answer:
d = 9
Step-by-step explanation:
solving for d
let's get ride of the fraction first so multiple the whole thing by 3
3= 1d - 6
add 6 to both sides
9 = d
easy peasy.
Planes X and Y and points J, K, L, M, and N are shown. Exactly how many planes contain points J, K, and N?
O 0
O 1
O 2
O 3
Answer:
3
Step-by-step explanation:
I think why but i think
number but
Using the function g(x) = -2x + 5, what would the input need to be for an output of -5? a.5 b.0 c.15 d.-5
Answer:
A
Step-by-step explanation:
We are given the function g(x) = -2x +5
If we need an output of -5, then:
-5 = -2x + 5
-10 = -2x
x = 5
A
Answer:
a. 5
Step-by-step explanation:
We can solve this by simply guessing and checking; plugging in each answer until we get -5.
a) -2(5) + 5
-10 + 5
-5
We can also set the function equal to -5 and solve for x.
-2x + 5 = -5
-2x = -10
x = 5
please helpppppp!!!!!
9514 1404 393
Answer:
A + 2×BD - 2×CStep-by-step explanation:
The shaded area contains area A and two of area B. The expression for that area can be written ...
Area of trapezoid = A + 2×B
__
The overall rectangle has an area of D. The areas labeled C can be subtracted from that to leave the shaded area. The expression for that is ...
Area of trapezoid = D - 2×C
please help if your able to (:
Answer:
4/9
Step-by-step explanation:
(2/3)^2 is another way of writing:
2/3*2/3
Which is 4/9
Hope this helps
Answer:
2/3*2/3 4/3
Step-by-step explanation:
Can y’all please answer this?
Answer:
Look at the description:
Step-by-step explanation:
The mistake is that they did not need to divide the radius by two since the radius is already half of the diameter. The area of a circle is pi*r^2. The second mistake they made was that they assigned pi the value of 3 which is wrong. After calculating, the area of the circle is 53^2pi = 8824.73mm^2
could someone help me out for number 5 please?
Answer:
she didnt multiply 5 times 12
help mee pleaseeeeeeas
Answer:
Step-by-step explanation:
Volume = 1/2 a * b*h
So
V= 1/2 (9)(6)(21)= 567 us ^3
A scale drawing of a rectangular park is 5 inches wide and 7 inches ong. The actal prake is 280 yards long. What is the area of the actual park, in square yards?
Given:
A scale drawing of a rectangular park is 5 inches wide and 7 inches long.
The actual park is 280 yards long.
To find:
The area of the actual park.
Solution:
Length of drawing = 7 inches
Length of actual park = 280 yards
The scale factor is
7 inches : 280 yards
1 inches : 40 yards
The width of the drawing is 5 inches. So, the width of actual part is
[tex]40\times 5=200 yards[/tex]
The area of the actual park is
[tex]Area=Length \times width[/tex]
[tex]Area=280\times 200[/tex]
[tex]Area=56000[/tex]
Therefore, the area of the actual park is 56000 sq. yards.
Find (f • g)(-1).
f(x) = x + 1
g(x) = x^2 + 5x
Answer:
cc
Step-by-step explanation:
c
Answer:
0
Step-by-step explanation:
(gf)(x)=(x+1)(x2+5x)
gf(x)=x3+5x2+x2+5x
gf(x)=x3+6x2+5x
gf(-1)=(-1)3+6(-1)2+5(-1)
gf(-1)=-1+6(1)-5
gf(-1)=-1+6-5
gf(-1)=6-6
gf(-1)=0
If y varies directly as x and y = 36 when x = 4,what is the value of y when x=6?
Answer:
y = 54 ✅Step-by-step explanation:
If the two numbers vary directly, we can use a proportion to find the missing value.
36/4 = y/6
4y = 216
Divide by 4
y = 54
Check
36/4 = 54/6
216 = 216 ✅
what is the simplest radical form with a rational denominator of 4.898?
Answer:
c
Step-by-step explanation:
Will mark brainliest if ur right! if not, u wont get it.
Answer:
(-4,4)
Step-by-step explanation:
I believe that's it
Helpp! Will give brainliest
Answer:
all of them are correct
Step-by-step explanation:
Bank A is lending money at 6.4% interest compounded annually. The rate at Bank B is 6.3% compounded monthly, and the rate at Bank C is 6.35% compounded daily. Determine the amount of interest you would earn at each bank if you invest $1500 for 12 months.Which bank will you pay the least amount?
Answer:
$1596
$1597.28
$1598.33
bank A
Step-by-step explanation:
The formula for calculating compound interest:
FV = P (1 + r/m)^mn
FV = Future value
P = Present value
R = interest rate
N = number of years
m = number of compounding
Bank A = $1500(1.064) = $1596
Bank B = $1500( 1 + 0.063/12)^12 = 1597.28
Bank C = $1500( 1 + 0.0635/365)^365 = $1598.33
Bank A pays the least amount of interest
An expression is shown.
(3.x2 + 2x – 5) - (5x2 - 4x + 1)
O a
8x2 + 6x 6
Ob
- 2x2 + 62 - 6
ос
- 2x2 - 2.3 – 4
od
8x2
2x – 4
Answer:
8x
2
+6x−6
this is the correct answer
the answer is B
(3x²+2x-5)-(5x²-4x+1)
= 3x²+2x-5-5x²+4x-1
= 3x²-5x²+2x+4x-5-1
= -2x²+6x-6
Question 7: e math instruction, can u guys help me?
The legs of a right triangle measure 10 m and 24 m. What is the length of
the third side of the right triangle?
Answer:
26
Step-by-step explanation:
100 +(24^2) = 676
square root of 676 = 26
Answer:
either 26 m or 21.8174 m
Step-by-step explanation:
If 24 is the hypotenuse, then 24^2-10^2=x^2
x^2=576-100=476
x=21.8174 m
if x=hypotenuse, then 24^2+10^2=x^2
x^2=576+100=676
x=26 m
A shop has 400 bulbs
out of which 24 are defective What percent are good bulb?
Answer:
look at the picture i sent plz......
Answer:
Number of non defective bulbs-
400-24
376
Our fraction would be-
376/400
To make it into percentage we need to always multiply it by 100
376/400 x 100
=94%
Thus 94% of the bulbs are non defective
Sally used 8 cubes to make this square frame that has 3 cubes on each side. If she uses 20 cubes to make a square frame, how many cubes will be on each side of the frame? Think of using objects to help you solve this problem.
Answer:
5
Step-by-step explanation:
The number of cubes that should be on each side of the frame should be considered as the 5.
Calculation of the number of cube:Since Sally used 8 cubes to make this square frame that has 3 cubes on each side.
So here the no of the cube be like
= 8 - 3
= 5
hence, The number of cubes that should be on each side of the frame should be considered as the 5.
Learn more about cube here: https://brainly.com/question/3510925
james and elaine share a box of sweet in the ratio 2:3 what fraction of sweets does james receive and elaine receive
Answer:
james get 2 thirds
Step-by-step explanation:
Find the solution of the system of the equations 7x+14y=35 -2x-2y=-8
Answer:
(x,y)=(309/7,-317/14) If you ever get stuck on similar problems I recommend using the photomath app.
Step-by-step explanation:
I lost all my points and answers so heres 25 for whoever wants it
(x - 1)/(n - 1) + (2n ^ 2 * (1 - x))/(n ^ 4 - 1) = (2x - 1)/(1 - n ^ 4) - (1 - x)/(1 + n)
alguien me puede ayudar con este problema es una ecuacion de 1er grado
Answer:
que mentiras eso es como de 12avo grado
Which can be used to expand the expression below?
Answer:
Distributive Property
Step-by-step explanation:
We have
5(3x - 6/7)
Distributive Property would work because 5 has to be mutliplied by 3x and -6/7 to rid the parenthesis and also give a final answer for the equation. Any others will lead to a wrong answer.
What is the slope of the line shown above? Just tap on the picture. Yes I’m watching Daniel tiger’s neighborhood. I’m babysitting while doing school work.
Answer:
The slope is 1/3
Step-by-step explanation:
Equation for slope is rise over run or y2-y1/x2-x1
-5,1 -2,2 these are the 2 points, so it could be 2-1/-2--5 which is equal to 1/3.
Is 2/7 a rational number?
What is its decimal expansion?
Answer:
2/7 is a rational number as its decimal expression is repeating.
Its decimal expansion is 0.2857142857142857
Here you can see that 571428 is repeating in the decimal places making it a rational number
Please help me :( I really need it.
Answer:
6
Step-by-step explanation:
since it's a right triangle you can use the Pythagorean Theorem
2.7² + b² = 6.5²
7.29 + b² = 42.25
b² = 34.96
b = [tex]\sqrt{34.96}[/tex] which equals 6 when rounded to the nearest tenth
Which of the following options have the same value as 60\%60%60, percent of 949494? HELP PLEASE!!!!
Answer:
options) 60/ or %60 or %60 ,
the correct answer is ''60/''
Step-by-step explanation:
because how come the sign of (%) is before the number , although it should be after the number value or we can say most the signs come after the number value .
hope this helps you
The mean of three numbers is 10. The mean of other four numbers is 12. Find the mean of all the numbers.
Answer:
11.14
Step-by-step explanation:
Mean = sum of numbers / total numbers
the mean of the 7 numbers = sum of the numbers / 7
sum of numbers for the 3 numbers = 10 x 3 = 30
Sum of numbers for the other 4 numbers = 12 x 4 = 48
Sum of the 7 numbers = 48 + 30 = 78
Mean of the 7 numbers = 78 / 7 = 11.14