Answer:
Perimeter is (8x + 4) units.
Step-by-step explanation:
[tex]{ \sf{perimeter = side + side + side}} \\ { \sf{p = (2x + 1) + (7x - 2) + (5 - x)}} \\ { \sf{p = (2x + 7x - x) + (1 - 2 + 5)}} \\ { \sf{p = 8x + 4}}[/tex]
A piece of wire 6 cm long weighs 30 grams. What is the weight of an 8 m length of the same wire?
A) 400 grams
B) 425 grams
C) 640 grams
D) 4000 grams
Answer:
4000 gm
Step-by-step explanation:
We can use ratios to solve
Change 8 m to cm
8m * 100cm/1m = 800 cm
6 cm 800 cm
------------- = ------------
30 grams x gm
Using cross products
6 * x = 800 * 30
6x = 24000
Divide by 6
6x/6 = 24000/6
x = 4000 gm
What is the answer to 2[5+2(8-6)]
Step-by-step explanation:
=2[5+2(8-6)]
=2[5+2(2)]
=2[5+4]
=2×9
=18
Answer: 18
Concept:
When encountering a question that needs to do operations with expressions, using the PEMDAS method will ease the process.
ParenthesesExponentsMultiplicationDivisionAdditionSubtractionSolve:
Given
2 [5 + 2 (8 - 6)]
Simplify values in the parentheses
=2 [5 + 2 × 2]
Simplify with multiplication
=2 [5 + 4]
Simplify the parentheses
=2 × 9
=18
Hope this helps!! :)
Please let me know if you have any questions
x² + 4x from 5x² + x
Can you answer this? please?
What is the value of x in the equation 0.7x – 1.4 = -3.5?
O -7
Ο Ο Ο Ο
3
7
Determine whether each relation is a function
Please help I dont wanna fail math this year
Thanks
(I am in Algebra 1 btw)
SOMEONE HELP ME PLEASE
Answer: D,E,F
Step-by-step explanation:
collinear means points on the same line
Brooke spent 3/4 hours playing her flute each day for 7 days. How many hours did she play her flute in all
Answer:
5 and 1/4 hours or 5 hours and 15 minutes
Step-by-step explanation:
She played her flute 3/4 hours every day for 7 days, so to find the total number of hours we can multiply 3/4 by 7 to get 21/4. This is equal to 5 and 1/4 hours, or 5 hours and 15 minutes.
Answer: 5.25 hrs
Step-by-step explanation: 3/4 of an hour is 45 min. 45 min x 7 days is 315 min which is 5 hours and 15 min or 5.25 hrs
-2x + 9x5 + 1 - 9x2
What’s the answer to this someone help plz
Answer:
factored = -2(x-14) Simplified= -2x+28
Step-by-step explanation:
cos(-x) = -cosx for all values of x.
True or false?
Rearrange the formulae to make x the subject:
ay/x - dx= wx
Thanks in advance
Answer:
[tex] \frac{ay}{x} - dx = wx [/tex]
multiply x through out:
[tex]ay - {dx}^{2} = w {x}^{2} \\ {wx}^{2} + {dx}^{2} = ay[/tex]
factorise out x²:
[tex] {x}^{2} (w + d) = ay \\ {x}^{2} = \frac{ay}{w + d} [/tex]
take square root on both sides:
[tex] \sqrt{ {x}^{2} } = \sqrt{ \frac{ay}{w + d} } \\ \\ x = \sqrt{ \frac{ay}{w + d} } [/tex]
Step-by-step explanation:
the biggest obstacle is usually a division by x.
so, let's get rid of it by multiplying both sides of the equation by x
ay - dx² = wx²
then
ay = wx² + dx² = (w+d)x²
y = (w+d)x²/a = x² × (w+d)/a
Directions: Place the LETTER of each value in its location in the real number system below
The segments shown below could form a triangle? True or False
Answer:
FALSE
Step-by-step explanation:
Use the Pythagorean theorem to check.
4²+3²=6² ?
16+9=36?
25≠36
These are AP statistics multiple choice questions. I don’t know if I got them correct but can double you check for me?
Answer:
first question
mean = 5.11
median = 6
mean = sum of the terms
number of terms
= 271
53
= 5.11
median is the 27th (arrange lowest to highest number)
conclusion, the median is higher than mean, the answer is B.
sec question
a is the answer
third question
a is the answer
last question
mean = 60838
median = 60000
the answer is B
Please help me out with this
Step-by-step explanation:
(2x-1)(3x+2) = 0
6x + 4x - 3x - 2 = 0
7x - 2 = 0
7x = 2
X = 2/7
Fill in this X for the 2 formulas, I'll do the first one:
2 * 2/7 - 1 =.....
Then take the 2 answers you get and multiply them with each other so you get the surface size (length * width)
Simplify the expression by combining like terms:
8x + 3y + 2x^2 + 6y^2 + 7 =
a
10x^2 + 9y^2 + 7
b
8x + 3y + 2x^2 + 6y^2 + 7
c
11xy + 8xy^2 + 7
Answer:
8x + 3y + 2x^2 + 6y^2 + 7 =
Step-by-step explanation:
8x + 3y + 2x^2 + 6y^2 + 7 =
Combine like terms
There are no like terms
8x + 3y + 2x^2 + 6y^2 + 7 =
Let's combine
8x+3y+2x²+6y²+7No like terms present
We may arrange in order of degrees.
2x²+6y²+8x+3y+7please help only real answers please
Answer:
D. WV
Step-by-step explanation:
A ray has one endpoint and one arrow. It goes infinitely in one direction.
D is the one that is a ray; the endpoint is on the left, the arrow is on the right.
Find the coordinates of the image of J (−5, −1) after the translation (x, y) → (x − 2, y).
A. (−7, −3)
B. (−5, −3)
C. (−3, −1)
D. (−7, −1)
The coordinates of the image of J (−5, −1) after the translation (x, y) → (x − 2, y) will be (−7, −1). Then the correct option is D.
What is a transformation of a point?A spatial transformation is each mapping of feature space to itself and it maintains some spatial correlation between figures.
The rule of the translation is given below.
(x, y) → (x − 2, y)
The coordinates of the image of J (−5, −1). Then the location of the point J after the translation will be
(x, y) → (x − 2, y)
(−5, −1) → (−5 −2, −1)
(−5, −1) → (−7, −1)
The coordinates of the image of J (−5, −1) after the translation (x, y) → (x − 2, y) will be (−7, −1). Then the correct option is D.
More about the transformation of a point link is given below.
https://brainly.com/question/27224339
#SPJ2
Explain what are all of the properties of real numbers and use an example for each.
Answer:
mark me as a brainlist answer
Step-by-step explanation:
Give examples to explain the properties of real numbers
Property (a, b and c are real numbers, variables or algebraic expressions)Examples8.Additive Inverse Property a + (-a) = 04 + (-4) = 09.Multiplicative Inverse Property10.Zero Property of Multiplication a • 0 = 04 • 0 = 011.Closure Property of Addition a + b is a real number10 + 5 = 15 (a real number)
Is the relation a function? Explain
Set-builder notation?
Domain/range?
Answer:
doamin = set builder nation
Answer:
domain= set builder notation
The chorus sang for 27 minutes. If each song lasted an average of 4 1/2 minutes, how many songs did the chorus sing?
Answer:
6 songs
Step-by-step explanation:
27 divided by 4 1/2 or 4.5 equals 6 which mean they sang six songs.
Answer:
6, because 4.5 fits into 27 6 times.
Solve 15x squared + 40x
Answer:
265x{2} + 40x
Step-by-step explanation:
Squared mean to multiply the number times itself. So 15x times 15x.
[tex]15x^{2} = 225x[/tex]{2}
Then the problem says to add, but because one is squared and th other is not, they cannot be combined. So the answer is:
[tex]225x{2} + 40x
Answer:
see below
Step-by-step explanation:
15x^2 + 40x
These are not like terms so they cannot be combined.
If you mean
(15x) ^2 + 40x
(15x * 15x) + 40x
225x^2 + 40x
They are still not like terms so they cannot be combined.
Please answer ASAP please and thank
Answer:
[tex]\huge\boxed{\sf 2\frac{1}{12} }[/tex]
Step-by-step explanation:
[tex]\displaystyle = 3\frac{1}{3} - 1\frac{1}{4} \\\\= \frac{3\times3+1}{3} - \frac{4\times1+1}{4} \\\\= \frac{10}{3} - \frac{5}{4} \\\\= \frac{10\times4}{3\times4} - \frac{5\times3}{4\times3} \\\\= \frac{40}{12} - \frac{15}{12} \\\\= \frac{40-15}{12} \\\\= \frac{25}{12} \\\\= 2\frac{1}{12} \\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Answer:
2 1/12
Step-by-step explanation:
3 1/3 - 1 1/4
Get a common denominator
3 1/3 *4/4 = 3 4/12
1 1/4 *3/3 = 1 3/12
Subtract
3 4/12 - 1 3/12
2 1/12
can anyone help me solve this function please?
Answer:
f(-5) = 19
Step-by-step explanation:
f(t) = -3t+4
Let f(t) = 19
19 = -3t+4
Subtract 4 from each side
19 - 4 =-3t+4-4
15 = -3t
Divide each side by -3
15/-3 = -3t/-3
-5 = t
Answer:
the answer is -5
Step-by-step explanation:
F(t)=-3(t)+4
it told you that F(t) is equal to 19
so -3*-5=15+4=19
MARKING BRAINLIEST !! using the distance formula falculate the perimeter of the triangle below
a. 27.9 units
b. 24.3 units
c. 25.7 units
d. 28.2 units
Answer:
a
Step-by-step explanation:
i didn't use the distance formula, instead i used the pythagrean theorum. i counted the units for the legs, and made three smaller triangle and solved them to find the lengths of the hypotenuse and the added the three of those together to find the perimiter of the original triangle
10. State the divisibility rules for 4 and 8 and check if the number 684572 is divisible by 4 and 8.
Answer:
yes the number is divisible by 4 in which we get 171143 without any decimal but if we try to divide it by 8 then we get
85571.5 with decimal include
2 = 2.27 - m/4
I am so bad at math, lol! ^^ HELP ME PWEASE!
Answer:
m = 1.08
Step-by-step explanation:
Subtract 2.27 from both sides.2 - 2.27 = -m/4
Simplify 2 - 2.27 to -0.27.-0.27 = -m/4
Multiply both sides by 4-0.27 × 4 = -m
Simplify -0.27 × 4 to -1.08.-1.08 = -m
Multiply both sides by -1 (-m is also known as -1)1.08 =m
Answer:
m = 1.08
Step-by-step explanation:
Basically, we can start off by finding the difference between 2 and 2.27(which is 0.27). Then we can see that 0.27 is equal to m/4. Since 0.27*4=1.08, we can see that m=1.08.
A train travels 625 kiy north in 15 hours. What is the bus's velocity?
What is the distance between 10 and -4
Answer:
the answer is 14
Step-by-step explanation:
10 pluss the 4 makes 14
Answer:
The distance between 10 and -4 is 14
Step-by-step explanation:
Because 10 plus 4 is 14 so the answer is 14,Hope it help you.
Describe a relationship between two sets that you can describe mathematically
Answer:
LOVE and CARING for each other
Step-by-step explanation: