Answer:
Step-by-step explanation:
a) Perimeter = sum of the length of the sides
= 13.4 +9.8 +12.3 +11.5
= 47 cm
b) Perimeter = 55.3 cm
11.5 + 15.7 +19.8 +x = 55.3
47 + x = 55.3
x = 55.3 - 47
x = 8.3 cm
c) Perimeter of regular hexagon = 67.5 cm
Length of one side = 67.5÷ 6
= 11.25 cm
d) Cost of 1 metre = $ 8.95
Cost of 7.5 metres = 8.95 * 7.5
= $ 67.125
The perimeter of a triangle is 51 cm. The lengths of its sides are x cm, x + 2 cm,
and x + 4 cm. What is the length, in cm, of the longest side of the triangle?
Step-by-step explanation:
16, 17 and 18
Explanation:
a
+
b
+
c
=
51
a
+
a
+
1
+
a
+
2
=
51
3
a
=
48
a
=
16
b
=
17
c
=
18
Explanation:
a
+
bAnswer:
+
c
=
51
a
+
a
+
1
+
a
+
2
=
51
3
a
=
48
a
=
16
b
=
17
c
=
18
Which of the following is a solution of 4x^2=-9x-4
Answer:
(-9+√17)/8
Step-by-step explanation:
its an example of quadratic
Consider the graph of the function f(x)=10^x.
Using graph, the value of g(x) = 8 and the y- intercept at the point (0,-1).
What is graph?A graph is a "mathematical representation of a network and it describes relationship between lines and points".
According to the question,
f(x) = [tex]10^x[/tex]
g(x) = -4f(x) +12
g(x) = -4 (10ˣ) +12
The graph intersect at y-axis then x-coordinate should be zero.
Let take any two points on y-axis (0, 1) and substitute g(0) = -4 (10⁰) + 12
= 8
Hence, the value of g(x) = 8 and the y- intercept at the point (0,-1).
Learn more about graph here
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Can anyone help me on questions 1-6 and 7-9? If it helps, the blocked document lesson name is lesson 1-6
Solve the inequality.
m-(-4) <8
Answer: m = 4
m + 4 < 8
m + 4 − 4 < 8 − 4
m < 4
Mr. Jackson gave an exam worth 50 points.
The mean score on the exam was 38, and the standard deviation was 4.
Mr. Jackson also reported his students’ z-scores.
Corey’s z-score was –1.75. This means that Corey scored points on the exam.
Z = (score - mean)/sd
-1.75 = (x - 38)/4
Multiply both sides by 4:
-7 = x -38
Add 38 to both sides:
x = 31
He scored a 31 points on the exam
Answer:
The person above is right, and deserves brainliest.
31 Is the correct answer
ED2021
Someone please help me, please
Write a justification for each step
Enter the number of rows needed and the number of seats that will be left over.
826 seats and 42 seat per row
rows
extra seats
Answer:
Assuming the covered digits are _
The sum is 826.
243 + 1_7 + _26 = 826
The objective is to determine the sum of the two unknown digits
So; we need to think about what number can we add put in 1_7 to determine the covered digit in _26
From ; 1_7 , we have the choice to pick from 0 - 9
Assuming the covered digit is 0; let's check if we are right
So; 243 + 107 + _26 = 826
350 + _26 = 826
_26 = 826 - 350
_26 = 476
So; the covered digit is in the position of 4 , but it doesn't tally together
i.e 426 is not the same as 476, which makes our assumption to be wrong.
Let consider the covered digit to be 5 for example.
So; 243 + 157 + _26 = 826
400 + _26 = 826
_26 = 826 - 400
_26 = 426
The covered digit is in the position of 4
SO;
426 = 426
Here , our assumption is right.
As such , the covered digits are 5 and 4
The sum of the two covered digits are = 5 + 4 = 9
Step-by-step explanation:
PLEASE HELP KWNVENVIENIWDCNINVJDSNIDNVJN
Answer:
y1 - y2/x1 - x2
1. -3/8
5 - 2/0 - 8
3/-8
-3/8
2. 1/2
1 - (-1)/6 - 2
1 + 1/4
2/4
1/2
3. -1 1/2
-5 - (-2)/-1 - (-3)
-5 + 2/-1 + 3
-3/2
-1 1/2
If a factory can produce 850 teddy bears in 2 days, how many teddy bears will it produce in 3 days?
Answer:
Step-by-step explanation:
I believe if you multiply 850×2= 1700.
Multiply 850×3..
That would equal to 2550.
Is my teacher wrong or my answer is wrong
The one in the box is the teacher answer
By the second one is my answer
Answer:
i would say you bc the teachers alway right
Step-by-step explanation:
Rewrite the function by completing the square
h(x)=4x^2+4x+1
Answer:
[tex]h(x) = 4(x+\frac{1}{2})^{2}[/tex]
Step-by-step explanation:
[tex]h(x)=4x^2+4x+1\\h(x)=4(x^2+x+\frac{1}{4}) \\h(x)=4(x^2+x+\frac{1}{4})\\h(x) = 4(x+\frac{1}{2})^{2}[/tex]
Please answer ASAP!!! :)
.-. .-. .-. .-. .-. .-.
Answer:
I highly recommend that it must be the second story
PLS HELP IM GOING TO GET KICKED OFF MY SOCCER TEAM IF I DONT PASS MATH
Answer:
Answer is x = -1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
i wish that you stay in your soccer team
Tell whether the ratios form a proportion. 1/3, 7/21
Yes
or
No
(also i give out branislist lol)
Answer:
Yes
Step-by-step explanation:
7/21 -> Divide both sides by 7 which gets you 1/3
Answer:
i would say yes
my work :
so i did 21 times 1 which is 21.
Tben i did 3 times 7 which is also 21.
So in conclusion i would say yes but i can't guarantee that
The discount price of a hat is $18. What is the regular price?
Without that value, we can't solve your problem, unless you are looking for an algebraic equation.
Evaluate the expression: 0.5f - 2.3g where f = 12 and g = 2
Answer:
1.4
Step-by-step explanation:
0.5f-2.3g where f=12 and g=2
substitute 12 in for f and 2 in for g and solve
0.5(12)-2.3(2)
6-4.6=1.4
Answer:
-4.6g + 6
Step-by-step explanation:
(0.5)(12)−2.3g(2)
=6+−4.6g
Answer:
=−4.6g+6
Pam, Wesley, and Diana added up how many miles they walked together.
In one week, they walked 38 miles.
Of those miles, Pam walked 13.
How many miles did Diana walk?
Answer:
12.5
Step-by-step explanation:
If they walked 38 miles and Pam walked 13, subtract 38 from 13, you then get 25. Then, divide that by 2. 25 divided by 2 is 12.5. That is your answer, I believe. Please make this the brainliest answer.
Kate had $28. After she bought a book , she had $18.05 how much did Kate spend on the book
Answer:
kate spent $9.95 dollars on the book
Step-by-step explanation:
Answer: She spent $9.95 on the book. $28.00 - $18.05 = 9.95
See attachment for question. 8th grade algebra
Answer:
the answer is -2
Step-by-step explanation:
your welcome have a great night
Is 3/17 a rational number
Answer:
no
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
A rational number is number that can be made by dividing two integers, like a fraction, or a ratio. Something that would not be a rational number would be like the square root of 2.
Which statement is true for this linear equation?
5x + 6 = 26
It has 2 constants, 1 coefficient, and 1 variable.
It has 2 constants, 1 coefficient, and 2 variables.
It has 1 constant, 2 coefficients, and 1 variable.
It has 3 constants, no coefficients, and no variables.
Answer:
It has 2 constants, 1 coefficient, and 1 variable.
The given linear equation 5x + 6 = 26 has 2 constants, 1 coefficient, and 1 variable.
What is a variable?A quantity that may assume any one of a set of values.
What is a constant?A value or number that never changes in expression
What is a coefficient?A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.
Given equation is 5x + 6 = 26
variables is "x" i.e. 1
constants are 6, 26 i.e. 2
coefficient is 5 i.e. 1
Thus the given linear equation 5x + 6 = 26 has 2 constants, 1 coefficient, and 1 variable.
To know more about constants, variable, coefficient click here
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A turkey costs $1.05 per pound. They're going to be 15 people at Thanksgiving dinner. Plan for each person to eat two, 3 / 8 lb servings of turkey. How many pounds of turkey will you need to buy?
Answer:
11.25 pounds of chicken need to be bought
Step-by-step explanation:
Per person will eat:
3/8 * 2 = 3/4 = 0.75 pound
So if one person will eat 0.75 pound.
15 people will eat 15 * 0.75 = 11.25 pounds
if u missed my first on here: If you can guess my number from 1-10 in your first try ill give brainliest :) but if you are like 1-2 numbers away, (soooo close) I'll still give you a brainliest
Answer:
7
Step-by-step explanation:
I think 7...... so yeah
Answer:
5 I think think
Step-by-step explanation:
5 I think
will give brainlyest if u help
Answer:
No, because it fails the vertical line test ⇒ B
Step-by-step explanation:
To check if the graph represents a function or not, use the vertical line test
Vertical line test: Draw a vertical line to cuts the graph in different positions,
if the line cuts the graph at just one point in all positions, then the graph represents a functionif the line cuts the graph at more than one point in any position, then the graph does not represent a functionIn the given figure
→ Draw vertical line passes through points 2, 6, 7 to cuts the graph
∵ The vertical line at x = 2 cuts the graph at two points
∵ The vertical line at x = 6 cuts the graph at two points
∵ The vertical line at x = 7 cuts the graph at one point
→ That means the vertical line cuts the graph at more than 1 point
in some positions
∴ The graph does not represent a function because it fails the vertical
line test
Mr. Blanco used 15.75 yards of fabric to make 7 costumes for the school play. How many yards of fabric did he use per costume?
Answer:
2.25 yards per costume
Step-by-step explanation:
if you want to find the unit rate of something put it into a fraction which is also considered dividing. Like if you want to figure out miles per hour or ounces per cup, just divide miles by hour, or divide ounces per cup to get your final answer. In this case divide 15.75 yards of fabric by 7 costumes to get your answer.
Answer:
2.25
Step-by-step explanation:
Help me and i will mark as brainliest
Step-by-step explanation:
BAC=56
ACB=62
ADC=62
COB=112
HELP! ASAP! 3x - 4y = -7 and 4x + 3y = 24 solve for x and y
Answer:
x = 3
y = 4
Step-by-step explanation:
3x -4y = -7
4x + 3y = 24
write the first equation in terms of y
3x - 4y = -7
3x + 7 = 4y
3x/4 + 7/4 = y
now substitute that into the second equation
4x + 3y = 24
4x + 3(3x/4 + 7/4) = 24
4x + 2.25x + 5.25 = 24
6.25x + 5.25 = 24
6.25x = 24 - 5.25
6.25x = 18.75
x = 18.75/6.25
x = 3
last step, substitute x for 3 in the equation.
y = 3x/4 + 7/4
y = 3*3/4 + 7/4
y = 9/4 + 7/4
y = 4
Answer:
[tex] \boxed{x = 3 \: and \: y = 4}[/tex]
Step-by-step explanation:
[tex]3x - 4y = -7.....(eq)1 \\ 4x + 3y = 24 .....(eq)2 \\ \boxed{step \: 1}\\ \times 4....3x - 4y = -7 \\ \times 3....4x + 3y = 24 \\\boxed{step \: 2} \\ 12x - 16y = - 28 \\ 12x + 9y = 72 \\ \boxed{step \: 3} \\ 12x - 12x - 16y - ( + 9y) = - 28 - 72 \\ - 25y = - 100 \\ y = \frac{ - 100}{ - 25} \\\boxed{ y = 4}\\.................. \\ \boxed{step \: 4} \\ substitute \: the \: value \: of \: y \: in \: .....(eq)1 \\ 3x - 4y = -7 \\ 3x - 4(4) = - 7 \\ 3x - 16 = - 7 \\ 3x = - 7 + 16 \\ 3x = 9 \\ x = \frac{9}{3} \\ \boxed{ x = 3}[/tex]
♨Rage♨
how many numbers are in pi
Answer:
31 trillion digits
Step-by-step explanation: