Answer:
Step-by-step explanation:
a) Let the width = w
Two times its width = 2*w = 2w
9 inches less than 2w = 2w - 9
Length = 2w - 9
Area of rectangle = length *width = 180 square inches
(2w - 9 ) * w = 180
2w*w - 9*w = 180
2w² - 9w - 180 = 0
b) sum = -9
Product= -360
Factors = -24 , 15 {15 *[-24] = -360 and 15 + (-24) = -9 }
2w² - 9w - 180 = 0
2w² - 24w + 15w - 180 = 0
2w(w - 12w) + 15(w - 12) = 0
(w -12) (2w + 15) = 0
{Ignore 2w + 15 = 0 as measurements cannot be a -ve value}
w - 12 = 0
w = 12 inches
l = 2w -9
= 2*12 - 9
= 24 - 9
l = 15
length = 15 inches
Width = 12 inches
c) Perimeter = 2 *(length + width)
= 2*(15 + 12)
= 2 * 27
= 54 inches
38. Calculate the value of c in the triangle below.
Answer:
15
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + 12^2 = 225
[tex] \sqrt{225} = 15[/tex]
Hope this helps!!
Sorry If its hard to read but it's worth a lot of points!
A portion of the Quadratic Formula proof is shown. Fill in the missing statement.
Statements Reasons
x squared plus b over a times x plus the quantity b over 2 times a squared equals negative 4 times a times c all over 4 times a squared plus b squared over 4 a squared Find a common denominator on the right side of the equation x squared plus b over a times x plus the quantity b over 2 times a squared equals b squared minus 4 times a times c all over 4 times a squared | Add the fractions together on the right side of the equation the quantity x plus b over 2 times a squared equals b squared minus 4 times a times c all over 4 times a squared | Rewrite the perfect square trinomial on the left side of the equation as a binomial squared ? Take the square root of both sides of the equation
Answer:
Take the square root of each side
D (x+b/2a) =±sqrt( (b^2-4ac)/ 4a^2)
Step-by-step explanation:
We have
(x+b/2a) ^2 = (b^2-4ac)/ 4a^2
We need to take the square root of each side to continue to isolate x
(x+b/2a) =±sqrt( (b^2-4ac)/ 4a^2)
I hope thats right
Which side lengths represent the sides of a right triangle?
A) 1, 1, 2
B) 2,35
C)3,4,5
D) 5, 11, 13 10
Answer:
Hello There!
Step-by-step explanation:
Your answer will be B.
(47^2 - 46^2) / (17^2 - 14^2)
Answer:
1
Step-by-step explanation:
47^2=2209
46^2=2116
2209-2116=93
17^2=289
14^2=196
289-196=93
93÷93=1
Have a good day
Answer:
1
Step-by-step explanation:
Hello!
We can solve this by using the Difference of Squares formula:
(a + b)(a - b) = a² - b²47² - 46², the numerator, is very similar to a² - b², so we can extract 47 as a, and 46 as b.
Rewrite the numerator:
47² - 46²(47 + 46)(47 - 46)(93)(1)93We can use the same formula for the denominator the same way:
17² - 14²(17 + 14)(17 - 14)(31)(3)93Rewrite the fraction and simplify:
[tex]\frac{93}{93}[/tex][tex]\frac11[/tex]1The answer is 1.
Anybody know the answer???
two car rental companies are running special this month at driveway rentals customers can pay to $30 rental free for a sedan and 15 for each day rental y = 15x + 30 at Harry's rental a car customer can pay a 40 rental free for a studding and $10 for each day of rental the cost for the two car rentals are shown on the graph below how many days must a car be pretend for the cost of both car rentals to be the same A4 B6 C2 D8
29.Consider the diagram below. Solve for x.
Answer:
104
Step-by-step explanation:
104 is parallel to x meaning it would stay as 104 (this is what my school tought me sorry if its incorrect)
Here is a quadrilateral inscribed in a circle. Jada says that it is square because folding it along the horizontal dashed line and then the vertical dashed line gives 4 congruent sides. Do you agree with Jada? Explain why or why not.
Answer:
yes
Step-by-step explanation:
because all the side are congruent, and there are four right angles that can be seen in the image!
Brainlyest for the person who answers both and is right
54. Consider the following trapezoid.
Find the value of a, b, c, and d.
Answer:
a=4cm
b=3cm
x=5cm
The surface area of the prism is ______ square units. All measurements in the image below are in units. (Input whole number only.)
A triangular prism is shown with 2 right triangular sides having legs 4 and 3 and hypotenuse 5. The length of the prism is 5.5
Numerical Answers Expected!
Answer:
its 72.50
Step-by-step explanation:
A conveyor belt dumps gravel into conical piles. Kevin measured the height of one pile of gravel. It was 10 1/2
feet tall. The volume of the pile was 77 cubic feet. Find the diameter of the pile of gravel. Round the answer to the nearest hundredth.
Answer:
189
Step-by-step explanation:
Please help!!!! At a gymnastics meet, a gymnast scored an 8.95 on the vault and a 9.2 on uneven bars. Write two equivalent expressions that could be used to find her total score. NO LINKSSSSSSSSSSSSSSSSSSSSSSSSSSS
Answer:
8.95 + 9.2 = 18.15
9.2 + 8.95 = 18.15
Step-by-step explanation:
8.95 + 9.2 = 18.15
9.2 + 8.95 = 18.15
please help with these questions please
Answer:
7. adjacent
8.127°
Step-by-step explanation:
adjacent angles on a straight line add up to 180°
180-53=127°
Answer:
they are supplementary
x = 127
Step-by-step explanation:
supplementary angles equal 180 degrees so you would do: 180 - 53 to find x
Which of these is an irrational number?
A. 0.54 (54 keeps going)
B. 5/8
C. √17
D. √25
Answer:
C
Step-by-step explanation:
every non-perfect square is irrational
Answer: I think it is √17
Step-by-step explanation:
Because an irrational number is a number that cannot be represented in the simple form of a fraction. ... therefore √17 is an irrational number.
In the figure at the right, what is m∠1 if m∠3 = 70°?
plz help i beg i will give brailist and 20 points
Answer:
m∠1 = 70°
Step-by-step explanation:
m∠1 and m∠3 are vertical angles; vertical angles are congruent (equal).
m∠1 = m∠3.
Which choice is equal to 2.5
The Lunchroom Murder
On an otherwise uneventful Thursday afternoon police heard a shot inside the local bistro, Ernie’s Lunchroom. They rushed in and found the scene shown in Figure 1.4.
They identified the body as that of a prominent racketeer named Fannin. Ernie, who is both the owner and only employee, had only one fact to tell: the murderer had leaned against the wall while firing at point-blank range. The imprint of his hand is in clear view.
The police have also noticed that the cash register had just been rung up at $8.75.
This is a difficult case. Your investigative team must attempt to determine which of the people in the lunchroom killed Fannin. You will have to observe the details carefully. There is enough evidence to help you explain most of what happened.
QUESTION: Which set of footprints are Ernie’s? What is the evidence?
Answer:
1 and 3
Step-by-step explanation:
What is the solution set for -4x-10 ≤ 2?
Answer:
x≥−3
Step-by-step explanation:
Let's solve your inequality step-by-step.
−4x−10≤2
Step 1: Add 10 to both sides.
−4x−10+10≤2+10
−4x≤12
Step 2: Divide both sides by -4.
−4x /−4 ≤ 12 /−4
= x≥−3
brainliest please?Answer:
x ≥ -3
Step-by-step explanation:
you add 10 on both sides
-4x - 10 ≤ 2
+10 +10
= -4x ≤ 12
then you divide -4 on both sides to get the x by itself
12/-4 is -3
since you divided by a negative you flip the sign
PLS HELP ME OR ILL ME PLS :_:::::
A rectangular prism has a volume of 912 cubic meters. It has a length of 19 meters and a width of 12 meters. Which equation could be solved to find the height of the rectangular prism?
A)114h = 912
B)228h = 912
C)15.5h = 912
D)31h = 912
Answer:
B. is the correct answer.
Thank you.
Step-by-step explanation:
Determine which graph has the line of best fit drawn and explain why.
Answer:
graph c
Step-by-step explanation:
because it is a more perfect line through the dots then the others, thats how you can always tell
Shiloh is doing a survey to find the time her classmates spend at the beach. She asks the following question:
Which student spends the most time at the beach?
Part A: Describe the data you would expect her to collect from this question.
Part B: Explain whether this is a statistical question. If this is not a statistical question, then modify the question to make it statistical.
Answer: it is a statistical question
Step-by-step explanation:
Answer:
read the explanation.
Step-by-step explanation:
Part A:
I would expect her to collect a certain number of times, such as: each dot = 1 hour. For example, if she had a dot plot or a chart to divide how much time each student stays at the beach (if that is understandable), along with her collecting the students' names to figure out the answer to her question.
Part B:
This is definitely a statistical question.
A statistical question is a question that can be solved by collecting data that varies.
so this can definitely be solved by collecting data. To even solve this, you need to collect data. The easiest way to solve this is with a dot plot. In my opinion, you also need to gather the students data, such as their names and how many (for example) hours at the beach they spent time there.
A box of popcorn is 3 inches wide, 4 inches long, and 6 inches high. The box is half empty. What is the volume of popcorn left in the box?
Answer:
36
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
Jeffrey is reading a book by his favorite author. He expects to read 40% to 55% of the book in one week. The book has a total of 450 pages. Which could be the number of pages he expects to read in one week?
A 170
B 175
C 220
D 250
35. Which side of the triangle in the diagram is the hypotenuse?
A. X
B. Z
C. C
Answer:
the answer in the image is Y
There are 12 students in the gym class. If 4 students can sit on 1 bench, how
many benches are needed for all the students?
(NO LINKS OR FILES!)
What doesr2mean?
Group of answer choices
r×r
2r
r2
Answer:
r2 means r x r
Step-by-step explanation:
2 is an exponent, meaning that the number (what r is) will multiply twice, meaning r x r.
For example, if r was 4, then you would multiply 4 x 4, which is 16 and not 4 x 2, which is 8.
Many make this mistake, which can cause big trouble. As you saw in the example above, products are not the same.
Hope this helps! :)
Is Brainliest an option?
...
GIVING BRAINLIEST ONLY IF CORRECT
Step-by-step explanation:
[tex]0.4 \div 0.2 = 2 \\✓ = option \: 3[/tex]
Answer:
The model that correctly shows the problem 0.4 divided by 0.2 is option 3.
Step-by-step explanation:
Option 3 has 4 out of 10 rowS shaded in, which you can infer immediately is the correct answer. Since 10 rows represent 1 whole, that means that 4 rows shaded in are 0.4. In option 3, the four rows are split by blue lines and have 2 rows, or 0.2, in each group, so option 3 matches the problem 0.4 divided by 0.2.
Select the correct answer from each drop-down menu.
For this data set, the best measure of center is the
, and its value is
.