Mathematics High School

The width of a poster is 4/5 of its length, It takes 36 ft. of metal framing to frame the poster. Find the dimensions of the poster.

Answers

Answer 1

The length is 10 and width is 8

Related Questions

Which of the following is NOT equivalent to the ratio: 12/4 A.6/2 B. 36/12 C.24/16 D.240/80

Answers

12 multiplied by 2 is 24. 4 multiplied by 2 is 8. Therefore 24/16 is not equal to 12/4

What is the multiplicative inverse of 23/47?

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23 x 47. This is the inverse as X is the opposite of /

What is the scale factor use to create this dilation?

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Given Info: "The dashed triangle is the image of the solid triangle"

So the "before" is the large solid triangle and the "after" is the smaller dashed triangle.

The horizontal side of the solid triangle is 15 units. The corresponding side for the dashed triangle is 3 units. Dividing the two values gives: 3/15 = 1/5 = 0.2

Make this value negative. The reason why is due to the fact that we have a sort of reflection going on as we're scaling down the figure.

So the final answer is -0.2

A line goes through the point (6,–2) and has a slope of –3.
What is the value of a if the point (a,7) lies on the line?

Answers

y = mx + b
slope(m) = -3
(6,-2)...x = 6 and y = -2
sub and find b, the y int
-2 = -3(6) + b
-2 = -18 + b
-2 + 18 = b
16 = b
so ur equation for this line is : y = -3x + 16

(a,7)......so y = 7......" a " is gonna be x

y = -3x + 16
7 = -3x + 16
7 - 16 = -3x
- 9 = -3x
-9/-3 = x
3 = x..........so " a " is gonna be 3 <===

The value of a in the point (a, 7) is 3

The slope intercept equation is as follows:

y = mx + b

where

m = slope

b = y-intercept

Therefore,

Let's find b using (6, -2)

m = -3

y = -3x + b

-2 = -3(6) + b

-2 = -18 + b

b = -2 + 18

b = 16

Therefore,

y = -3x + 16

let's find the value of a in (a, 7)

7 = -3x + 16

7 - 16 = -3x

-9 = -3x

x = -9 / -3

x = 3

Therefore,

a = 3

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If Jessie is 24 years younger than her mother and if the sum of their ages is 84, how old is Jessie?

Answers

Jessis should be 18 years old.

Jessie would 60. You would subtract 80-24 which then equals 60.

vector is flying his helicopter at 200 miles per hour. how long has he been flying if he has traveled 1,200 miles? A. 2 hours B. 60 hours C. 6 hours D. 10 hours??? please help

Answers

6 hours, because 1,200 divided by 6 is 200. Think about it at 200 mph it will take you 1 hr to go 200 miles two hours will be 400 miles and so on. Does that make sense?

C 6hours because the helicopter can cover 200miles in an hour so if you want to find out 1200 miles all you need to do is divide 1200 by 200 which gives you an answer if 6 xx

Which number below best represents a temperature of 59.18 degrees above zero? A. -69.18 B. 69.18 C. 59.18 D. -59.18

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C is that answer to your question. I know this because it’s aboce zero so it’s not a negative number

what number would you add to both sides of x^2-20x=5 to complete the square

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100

you take the middle term and divide it by 2, then square it

Evaluate the expression
-8 X 7 + 33 ÷ (-11)
PLEASE HELP ME ASAP
thanks

Answers

PEMDAS:

1) -8x7= -56
-56 + 33/-11
2) 33/-11
-56 + (-3)
Your answer is -59

Multiply/divide first.
-56 + 33 - 3
Add/subtract left to right.
-26

Jason started a hat-making business. He spent $750 to purchase supplies to get started and he uses about $3.50 worth of supplies per hat made. Jason charges $15 for each hat. Let h represent the number of hats.

What is the minimum number of hats Jason will need to sell to make a profit?

A. 15h>750+3.5h

B. 3.5h≥750+15h

C. 3.5h>750+15h

D. 15h<750+3.5h

Answers

the answer is 3.5h>750+15h

Given that we have already tossed a balanced coin ten times and obtained zero heads, what is the probability that we must toss it at least two more times to obtain the first head

Answers

Final answer:

The probability that at least two more coin tosses are required to get the first head, after ten tails in a row with a balanced coin, is 50%.

Explanation:

The student is asking about the probability of a specific outcome in a sequence of coin tosses. Given that we have already tossed a balanced coin ten times and obtained zero heads, we want to calculate the probability of having to toss the coin at least two more times to get the first head. The probability of getting a head on any given coin toss is 0.5. To get the first head in at least two more tosses means we need a tail (T) on the next toss and then any outcome (H or T) after that. Therefore, we calculate the probability as follows:

The probability of getting a tail on the first toss is 0.5.The probability of getting any outcome on the second toss is 1 (since it can be either head or tail).

The combined probability is the product of the two individual probabilities, which is 0.5 * 1 = 0.5 or 50%. Hence, the probability that we must toss the coin at least two more times to obtain the first head is 50%.

solve for y: 7/9y = 42

Answers

I answered on paper hope that is alright with you. I just find it easier for math problems. That slash means two numbers cancel each other out. What's in the box is the answer and the proof that it's right is underneath.

7/9y=42

Take the denominator and multiply it by the whole. 9*42=378

Then take your answer and divide it by the numerator. 378/7=54

To check your work just simply multiply 7/9 * 54 = 42

What does it mean if the determinant of a matrix is 0?

Answers

It means that it is not invertible. In other words, if a matrix has a determinant of 0, there is no inverse of the matrix.

In linear algebra (university level course), having a determinant of 0 would mean a lot more.

Have an awesome day! :)

Final answer:

The determinant of a matrix is 0 means the matrix is singular, indicating no unique solution for the corresponding system of equations, or in geometry, that space is compressed to a lower dimension.

Explanation:

When the determinant of a matrix is 0, it signals that the matrix does not have an inverse and is considered singular. In practical terms, this means that the system of equations that corresponds to the matrix does not have a unique solution. For instance, in a square matrix, if the determinant is zero, it may indicate that the rows or columns are linearly dependent, meaning that at least one row or column is a scalar multiple of another, resulting in redundant information. In geometry, if we're dealing with transformation matrices, a determinant of zero implies that the transformation compresses the space into a lower dimension, effectively 'flattening' it, and thus, the original geometrical figure loses its volume.

I want to know the answer of this question

Answers

[tex]\bf \textit{circumference of a circle}\\\\ C=2\pi r\qquad \begin{cases} r=radius\\ -----\\ r=5x^2 \end{cases}\implies C=2\pi 5x^2\implies C=10\pi x^2 \\\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \begin{cases} r=radius\\ -----\\ r=5x^2 \end{cases}\implies A=\pi (5x^2)^2\implies A=\pi (5^2x^{2\cdot 2}) \\\\\\ A=\pi (25x^4)\implies A=25\pi x^4 [/tex]

What is 781,407 rounded to the nearest ten thousand What is 781,407 rounded to the nearest ten thousand?

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781,41 is the correct answer

n2-14n+49 what’s the answer

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(n-7) (n-7) will be your answer

n x n = n²

n x -7 = -7n
n x - 7 = -7n
-7n +(-7n) = -14n
-7 x -7 = 49

(n-7)² is your answer

hope this helps

and if you are doing the other thing

n = 7, 7

hope this helps

a+b=14 anda*b = 49 The solution to this new system of equations is a=7, b=7. original expression is (n+7)(n+7), or (n+7)^2. *As always meaning when the coefficient of n^2 is 1. When the coefficient is 2+, it's not as simple but the same idea hope this helps

find the median of the data set: -66, -48, -52, -42

Answers

-66, -52, - 48, -42

If you can have 2 medians (since there is only 4 numbers), it is -52 and -48

If you can only have one,then i believe you choose -50, because it is in between -48 and -52

hope this helps

On Saturday,miguel biked 36 kilometers in 2 hours. What was his average rate of speed in kilometers per hour?

Answers

To do that use the equation v=d/t and plug in your given values.
v=36/2
v=18km/hr

The average rate of speed of Miguel when he biked on Saturday given the distance and time is 18 kilometers per hour.

What is the average speed?

Average speed is the rate at which an object moves with respect to time. Average speed is determined by dividing total distance travelled by time.

Average speed = total distance / time

36 / 2 = 18 kilometers per hour.

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Translate this sentence into an equation.

The sum of 14 and holly's age is 55.

Use the variable h to represent holly's age.

Answers

55=h+14
H+14=55
55-14=H

Final answer:

The sentence 'The sum of 14 and Holly's age is 55' can be translated into the equation 14 + h = 55, where h represents Holly's age.

Explanation:

To translate the sentence into an equation, we identify the mathematical operations described by the sentence. The sentence 'The sum of 14 and Holly's age is 55' indicates an addition operation involving Holly's age and the number 14. Using the variable h for Holly's age, we form the equation 14 + h = 55. This is a simple linear equation where h represents an unknown value that can be solved for.

How to get to standard form from slope intercept?

Answers

The slope intercept form of a linear equation is of the kind y = mx + b.

The standard form of a linear equation is Ax + By = C.

So, to get from y = mx + b to Ax + By = C, you follow these steps:

y - mx = b

=> y + (-m)x = b

=> (-m)x + y = b

For example get the standard form from y = 3x + 5

=> (-3)x + y = 5

where =

A = -3

B = 1

C = 5

On what interval(s) is the graph decreasing? - use interval notation
On what interval(s) is the graph decreasing? - use interval notation
Identify any local maximums values and minimum values. - Algebra 2

Answers

The function is decreasing from -6 to -3, that is, on the interval (-6,-3), and again on the interval (1, infinity).

The function is increasing on (-3,1).

No local or absolute minimum.

(1,4) is an absolute max.

Please help! 20 points!

Answers

12/3 = 4

it was dilated with a scale factor of 4

BRAINLIESTTTTTTTTTTT!!

1. For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation?

2x + y = 8
−x − 3y = −12

3y + 12
−3y + 12
3y − 12
−3y − 12

2. please check my answer for the picture question

Answers

A is right hope this helps you can i get brailylist

2x + y = 8
−x − 3y = −12 → - x = 3.y - 12 → x = -3.y + 12. So I will substitude in the 1st equation, x by -3.y + 12 (2nd answer)

2) you follow the same logic as previously done
and you will find 2x+4y ≥ -16.
Isolate y → 4y ≥ - 2x - 16→→y ≥ - x/2 -4
1st you notice that it's a straight line (and not - - - ), then the equation should have ≥ (and not > )

2nd) It's decreasing that means a<0 (a= - 1/2)
3rd) for x = 0 ; y = -4
All that satisfies the equation y ≥ - x/2 -4 OR 2x+4y ≥ -16 (last answer)

Unknown angle measures?

Answers

d = 122 - 72
d = 50

180 - (50 + 72)
= 180 - 122
= 58

e = 180 - (72 + 58)
e = 180 - 130
e = 50

answer
d = 50
e = 50

The sum of three numbers is 62. The second number is equal to the first number diminished by 4. The third number is four times the first. What are the numbers? Which three expressions could be used to represent the numbers? n; n - 4; 4n n; 4 - n; n + 4 n; n/4; n + 4

Answers

n = first number
2nd number = n diminished by 4.....n - 4
3rd number is 4 times the first.....4n

ur 3 expressions are : n , n - 4, 4n <==

Answer:

Numbers: 11, 7 and 44

Expressions: n, n - 4, 4n

Step-by-step explanation:

We have that A + B + C = 62, where A, B and C represent numbers.

We know that the 2nd number (B) is equal to the first number (A), diminished by 4. This means B = A - 4

We also know that the 3rd number (C) is four times the first (A), that is to say 4*A. This means C = 4*A

If we replace this information in the first expression, we have

A + B + C = A + (A - 4) + (4*A) = 62

We change an equation of 3 variables to an equation of just one. Now we solve it putting together the terms that have the variable A:

A + A - 4 + 4*A = 62

2A + 4A - 4 + 4 = 62 + 4

6A = 66

A = 11

Our first number is 11, now we find B and C:

B = A - 4 = 11 - 4 = 7

C = 4A = 4*11 = 44

So, the numbers are 11, 7 and 44

If we change the A for a "n", the expressions that represent the numbers are n, n - 4 and 4n

What is the y-coordinate of the vertex of the parabola that is given by the equation below?x = -2.5(y - 3)2 + 5?

Answers

The answer is y = 4 - 0.2x

Question 9
If x is a small negative integer and y is a large positive integer, which of the following expressions must be positive?
A x * y
B y − x
C y ÷ x
D x ÷ y

Answers

Since x is negative, substitute -x in for x and look for something that would be positive all the time.
A) -x * y = negative
B) x + y = positive, making B the answer

write a word phrase for each algebraic expression

1. 100 - 5n

2. 25r + 6

Answers

Problem
Write a word phrase for each algebraic expression

Result
1. Five times a number minus one-hundred
2. Twenty-five times a number plus six

Solution
I recommend watching videos on turning algebraic expressions into word phrases. Try and figure out why the answer is the way it is.

The three angles of a triangle are in the ratio 3:3:4. What information can you give about the triangle?

Answers

The information tells us that this triangle is an isosceles triangle meaning two sides and two angles are congruent. Also, this is not a right triangle as the only isosceles right triangle has a ratio of 1:1:2

Hope this helps!

let the angles be x.
3x + 4x + 4x = 180 (angle sum property of a triangle is 180 degrees.)
12x = 180
x = 180/12
x= 15
the angles are 45, 60 and 60
it is an isosceles triangle.

How do you find the median of these numbers $17.49, $11.29, $16.89, $11.79?

Answers

Good morning, kid. It's quite easy.

The median is the middle number in a set after you place them least to greatest:

$11.29, $11.79, $16.89, $17.49

Well, since the numbers in the set are even, meaning there are only 4 numbers, we pick out the 2 middle numbers which would be, $11.79 and $16.89. Find the average (add them and divide by 2) and you'll get the median.

$11.79 + $16.89 = $28.68/2 = $14.34
Thus, the median is: $14.34

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