Answer:
320 cm [125.984 inches]
Step-by-step explanation:
A(l) = (a+b+c) x h
h=20
a=3
b=8
c=5
A(l) = (3+5+8) x 20
A(l) = 320
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 22 feet up. The ladder makes an angle of 66 with the ground. Find the length of the ladder. Round your answer to the nearest tenth of a foot if necessary.
Answer: The length of the extension ladder that is against the outside wall of the house is 22.58 feet.
Step-by-step explanation: When the ladder lies against a house, a right triangle is formed. You can use the numbers to calculate distance. (or just use a calculator.
PLEASE ANSWER ALL QUESTIONS!!! I'LL GIVE 30 PTS TO WHOEVER ANSWERS!! Find the area of each shape. (sorry if it's hard to read)
Answer:
Rectangle's is 28
Step-by-step explanation:
We multiply 9 * 4 to get rectangless shape and then we substract squares (2) shape 2*2*2
(9*4) - (2*2*2)= 28
Math needed in 20-30 mins Pls
Answer:
the two accounts don't compare and account A earned 180
Step-by-step explanation:
interest =beginning amount or principal amount *rate *time in years /100 so that would be 1500*4*3/ 100 and 1500*6*1.9/100
Use the best-fit line below to predict the value of y when x = 7
Answer:
the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis
A window is being replaced with tinted glass. The plan below shows the design of the window. Each unit length represents 1 foot. The glass costs $18 per square foot. How much will it cost to replace the glass? Use 3.14 for π.
Answer:
it will cost 56.52
Step-by-step explanation:
order the values from least to greatest |-16|, 10, |25|, -16, |-43|
Answer:
-16, 10, 16, 25, 43
Step-by-step explanation
when you have something in absolute value bars it's always going to be positive so you would make -16 regular 16; and 10 stays 10; 25 stays 25; -16 stays - 16; and then -43 turns into regular 43
Answer:
-16, 10, 16, 25, 43
Step-by-step explanation:
If it has the bars around it and its a negative number it turns into a posotive
x= _______ m (If needed, round to 2 decimal place.)
y=________ m (If needed, round to 2 decimal place.)
The length of side x is 14.7 m.
The length of side y is 18.2 m.
What are the values of x and y?
The values of x and y are determined by applying the principle of congruent triangles.
The length of side x is calculated as follows;
( 5.6 m / 4 m ) = ( x / 10.5 m )
x = ( 10. 5 m ) ( 5.6 m / 4 m )
x = 14.7 m
The length of side y is calculated as follows;
( 5.6 m / 4 m ) = ( y / 13 m )
y = ( 13 m ) ( 5.6 m / 4 m )
y = 18.2 m
Learn more about congruent triangles here: https://brainly.com/question/2938476
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7. Draw a circle around the expression which is greatest when n is a negative number?
n²
A. n-2
B. 2n
C. n/2
D. 2/n
Answer: n-2
Step-by-step explanation: anything with negative would be subtraction ( any variable anyway )
Jan says that a rhombus is a parallelogram and that every parallelogram is also a rhombus. Is Jan correct?
Explain why or why not.
Answer:
Hello
Yes, all rhombus are considered a parallelogram but every parallelogram is a rhombus is a false statement.
Step-by-step explanation:
So, Jan was correct at first but the second is incorrect.
Bye I hope this helps! (●’◡’●)
Use the spinner to find the theoretical probability of the event.
The theoretical probability of spinning a 1 is
Answer:
3/8
Step-by-step explanation:
There are 8 options, are 3 of them are ones. This means there is a 3 in 8, or 3/8 chance of spinning a one.
HELP PLEASEE!!
What is the sum of -2x³ + x-3 and x³- 3x - 4?
(a) Show your work.
(b) Is the sum of -2x³ + x-3 and x³-3x - 4 equal to the sum of x³ - 3x - 4 and
-2x³ + x-3? Explain your answer.
Answer:
a) the result is -X³-2x -7
b) no
Use Net to find surface area of regular pyramid!! Pls help!!!!!!
Answer:
78
Step-by-step explanation:
The box plots shown represent the average mileage of two different types of cars. Use the box plots to compare the data sets.
Drag each value to show if it is greater for SUVs, greater for sedans, or if there is not enough information to tell.
Answer:
Step-by-step explanation:
A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.
What is the volume, in cubic centimeters, of the cereal box?
Referring to the Fig, this sequence of toothpick figures has 6
toothpicks in Term 1, 11 toothpicks in Term 2, and 16 toothpicks in
Term 3. What rule can be used to find the number of toothpicks for
any term of the sequence?
a. term number × term number + 7
b. term number × 5
c. term number × 5 + 1
d. term number + 5
The table represents some points on the graph of linear function f.
Which function represents f?
Answer:
f(x) = 26(x - 2)
Step-by-step explanation:
Merry Christams Eve!
Thanks for always helping me!
Answer:
Merry xMAS!!!
Step-by-step explanation:
Answer:
Merry Christmas Eve 2 u too
Step-by-step explanation:
HELPPPPP AGAINNN UGH THIS IS HARD
Answer:
A
Step-by-step explanation:
A percent is out of 100 so P/100 and a part is out of a whole so a/w
Answer:
A
Step-by-step explanation:
what is the surface area of a rectangular prism with a length of 40 a width of 32 and a height of 12 show work please
Answer:
4288 units
Step-by-step explanation:
The formula for this equation would be S = 2 (lw + lh + wh)
I did length x width + length x height + width x height (x2) to get the surface area
Therefore, I got 4288 units :)
can someone please help me - Mathwatch homework
Work out, giving your answer in its simplest form
3 1/2 ÷ 2 3/5
need answer for these qyestion
thank you for asking me this question
Solve the inequality for x.
4 − 3x < 7
x > −1
x < −1
x > 1
x < 1
The solution set of inequality 4 − 3x < 7 is x > -1.
What is an inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other.
Given:
4 − 3x < 7
To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.
So,
-3x < 3
x > -1
Therefore, the value is x > -1.
To learn more about the inequality;
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Identify and verify the values of x and y that simultaneously satisfy the pair of equations
y = 2x + 6 and y = –4x – 6 by graphing. *
Answer:
y = 2x + 6 is slope 2 and y-intercept (0,6)
y = –4x – 6 is slope -4 and y- intercept (0,6)
Which sign makes the statement true?
5.7 x \(10^{2}\) 5,700,000,000,000
Please help me quickly!!
Answer:
<
Step-by-step explanation:
the exponent will tell you how many places u need to move the decimal. 5.7 × 10 to the 2nd power = 570. u moved the decimal 2 places to the right.
∠1 and ∠2 are supplementary.
m∠1=124°
m∠2=(2x+4)°
What is the value of x?
Options:
13
26
40
36
41
Answer:26
Step-by-step explanation:Since angles 1 and 2 are supplementary, it follows that there sum is 180°.
On this note;
Sum of 1 and 2 is;
180 = 124 + (2x + 4)°
(2x + 4)° = 180 -124
2x = 56 -4
2x = 52
x = 26°.
Select all the graphs that show a proportional relationship between x and y
A
B
C
D
(images below)
Squidward loves playing his clarinet and believes it attracts more jellyfish than any other instrument he has played. In order to test his hypothesis, Squidward played a song on his clarinet for a total of 5 minutes and counted the number of jellyfish he saw in his front yard. He played the song a total of 3 times on his clarinet, and then repeated the experiment using a flute and a guitar. He also recorded the number of jellyfish he observed when he was not playing an instrument. The results are shown in the chart. number of jellyfish attracted to each instrument trial / without music / clarinet / flute / guitar 1 / 5 / 15 / 5 / 12 2 / 3 / 10 / 8 / 18 3 / 2 / 12 / 9 / 17 1) what is the dependent value? 2) what is the independent variable? 3) what should be Squidward’s conclusion? 4) are the results reliable? why or why not?
Answer:
1. The amount of jellyfish attracted ,
2. The type of instrument played ,
3. The guitar attracts the most jellyfish,
4. the results are reliable. there are no big outliers .
Math please help me..
Answer:
2m+2+12y
Step-by-step explanation:
-4m-2+5y+6m+4+7y
2m+2+12y
I don’t understand question b can somebody explain it for me?
~khan academy 7th grade
Which of the following expressions represents the distance between 1.71.7 1.7 1, point, 7 and −12-\dfrac{1}{2} − 2 1 minus, start fraction, 1, divided by, 2, end fraction on a number line? Choose 1 answer: Choose 1 answer: (Choice A) A ∣1.7−12∣\left\lvert 1.7 -\dfrac{1}{2}\right\rvert ∣ ∣ ∣ ∣ ∣ 1.7− 2 1 ∣ ∣ ∣ ∣ ∣ open vertical bar, 1, point, 7, minus, start fraction, 1, divided by, 2, end fraction, close vertical bar (Choice B) B ∣1.7−(−12)∣\left\lvert 1.7 - \left(-\dfrac{1}{2}\right)\right\rvert ∣ ∣ ∣ ∣ ∣ 1.7−(− 2 1 ) ∣ ∣ ∣ ∣ ∣ open vertical bar, 1, point, 7, minus, left parenthesis, minus, start fraction, 1, divided by, 2, end fraction, right parenthesis, close vertical bar (Choice C) C None of the above
Question:
Which of the following expressions represents the distance between 1.7 and −1/2 on a number line?
Choose 1 answer:
\(A.\ |1.7 - 1/2|\)
\(B.\ |1.7 -(-1/2)|\)
C. None of the above
Answer:
\(B.\ |1.7 -(-1/2)|\)
Step-by-step explanation:
Given
Numbers: 1.7 and -1/2
Required
Determine the distance
To calculate the distance, we start by calculating the difference between the given numbers;
\(Difference = 1.7 - (-1/2)\)
Then, we calculate the distance;
In this case, the distance is meant to be positive; So, we'll introduce the symbol for absolute value;
Hence,
\(Distance = |Difference|\)
Substitute \(1.7 - (-1/2)\) for Difference;
\(Distance = |1.7 - (-1/2)|\)
Hence, the correct option is B
The expression that represents the distance between 1.7 and -0.5 is given by |1.7 - (-0.5)| and this can be determined by using the arithmetic operations.
Given :
Numbers -- 1.7 and -0.5
The distance between two points 1.7 and -0.5 is given by:
Distance = 1.7 + |-0.5|
= 2.2
Now, check all the options in order to determine the correct option:
A) |1.7 - 0.5|
Simplify the above expression.
|1.7 - 0.5| = 1.2
B) |1.7 - (-0.5)|
Simplify the above expression.
|1.7 - (-0.5)| = |1.7 + 0.5| = 2.2
Therefore, the correct option is B).
For more information, refer to the link given below:
https://brainly.com/question/13101306
Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?
Step-by-step explanation:
Let's assume the amount Mackey initially invested in the 6% account is x dollars.
According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.
The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.
The total interest earned in the year is given as $737.50, so we can set up the equation:
0.06x + 0.085(x + $1000) = $737.50
Simplifying the equation:
0.06x + 0.085x + 0.085($1000) = $737.50
Combining like terms:
0.145x + $85 = $737.50
Subtracting $85 from both sides:
0.145x = $737.50 - $85
0.145x = $652.50
Dividing both sides by 0.145:
x = $652.50 / 0.145
x ≈ $4500
Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.
$4500
$4500
$4500
$4500