Solve: 5x2 + 25x = 0. (2 points)
Answer:
=−5
Step-by-step explanation:
PLEASE HELP <3
Mrs. Neville determined the following annual expenses for energy from her last year's bills: electricity = $4,135; gas = $890; water and sewer = $698. If she budgets 25% more for next year, what is her monthly budget for energy?
$521.87
$547.22
$596.15
$601.44
None of these choices are correct.
Answer:
n=21000.
Step-by-step explanation:
$3.60
A building in the shape of a cube has a width of 30 ft., a length of 30 ft., and a height of 30 ft. An architect wants to build a scale model of the building that is 10% smaller in volume. What is the height of the new building?
Answer:
Step-by-step explanation:
The height of the scale model is 13.92 feet. (Rounding to the nearest hundredth).
Step-by-step explanation:
These are the measurements of the real building:
Height = 30 feet
Width = 30 feet
Length = 30 feet
Volume of the real building = 30 * 30 * 30 = 27,000 cubic feet
These are the measurements of the scale model:
Volume of the scale model = 10% of 27,000 cubic feet
Volume of the scale model = 0.1 * 27,000 = 2,700 cubic feet
Height = ∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)
Width = ∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)
Length =∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)
The height of the scale model is 13.92 feet.
Answer:
28,96 ft (round to the nearest hundreds)
Step-by-step explanation:
1) find the volume of the first cube
V = side^3 = 30^3 = 27000 ft^3
2) find the 10% of 27000
27000 / 0,1 = 2700
3) find the volume of the second cube
V = 27000- 2700 = 24300 ft^3
4) find the height
height = ∛24300 = 28,96 ft (round to the nearest hundreds)
The mean (average) number of albums released by the four artists is 7 albums. Calculate the mean absolute deviation (MAD) of the data shown in the display below.
Answer:
I'm sorry I dint understand the question very well
What is the answer to this question?
Answer:
Step-by-step explanation:
Hello!
2*2* 5+ 2*2*4 =
20 + 16 = 36 cm³
how can i solve that equation by factoring
Answer:
y = ( x + 3 )( x + 5 )
Step-by-step explanation:
N/A
Answer:
[tex]y = {x}^{2} + 8x + 15 \\ factors \: = 3 \: and \: 5 \\ y = {x}^{2} + 3x + 5x + 15 \\ y = x(x + 3) + 5(x + 3) \\ y = (x + 5)(x + 3) \\ either \: (x + 5) = 0 \: or \: (x + 3) = 0 \\ x = - 5 \: and \: - 3[/tex]
The side length of a square is √27
inches. What is the area of the square?
...............
Answer:
27
Step-by-step explanation:
To find the are of a square, raise the side length to the power of two (or square it). [tex]\sqrt{27} *\sqrt{27}[/tex] is simply equal to 27.
I hope this helped!
The area of the square is 27 inch².
What is Area?The total space occupied by a flat (2-D) surface or the shape of an object is defined as its area. The area of a plane figure is the space enclosed by its boundary. The number of unit squares that cover the surface of a closed form is the figure's area.
We have side of square is √27 inches.
So, the Area of Square
= side x side
= √27 x √27
= 27 inches²
Thus, the Required Area is 27 inch².
Learn more about Area here:
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Each of 6 students reported the number of movies they saw in the past year. Here is what they reported.
8,6,8,5,4,6
Find the mean number of movies that the students saw.
If necessary, round your answer to the nearest tenth.
Answer:
[tex]\boxed {\boxed {\sf mean \approx 6.3}}[/tex]
Step-by-step explanation:
We are given this data and asked to find the data.
8, 7, 8, 5, 4, 6
The mean is also called the average. It is found by dividing the sum of the terms by the number of terms.
[tex]mean= \frac {sum \ of \ terms}{number \ of \ terms}[/tex]
First, we calculate the sum of the terms. Add up all the numbers.
sum= 8+7+8+5+4+6 sum= 38[tex]mean=\frac{38}{number \ of \ terms}[/tex]
Next, divide by the number of terms. There are 6 terms (also, there are 6 students that reported).
[tex]mean=\frac{38}{6}\\mean=6.33333333333[/tex]
Let's round to the nearest tenth.
6.33333333333The 3 in the hundredth place tells us to leave the 3 in the tenth place.
[tex]mean \approx 6.3[/tex]
The mean number of movies the students saw is approximately 6.3
Step-by-step explanation:
Terms are
8,6,8,5,4,6[tex] \rm \mapsto \: mean = \frac{sum \: of \: terms}{number \: of \: terms} \\ \rm \mapsto \: \frac{8 + 6 + 8 + 5 + 4 + 6}{6} \\ \rm \mapsto \: \frac{14 + 13 + 10}{6} \\ \rm \mapsto \: \frac{37}{6} \\ \rm \mapsto \: 6.166 \\ \rm \mapsto \: 6.1 \overline{6} \\ \rm \mapsto \: 6.2[/tex]
[tex]\boxed{\large{\sf Mean\approx 6.2}}[/tex]
[tex]\sf Knowledge\:booster{\begin{cases}\bf{\dag}\:\:\underline{\textsf{Fraction Rules :}}\\\\\bigstar\:\:\sf\dfrac{A}{C} + \dfrac{B}{C} = \dfrac{A+B}{C} \\\\\bigstar\:\:\sf{\dfrac{A}{C} - \dfrac{B}{C} = \dfrac{A-B}{C}}\\\\\bigstar\:\:\sf\dfrac{A}{B} \times \dfrac{C}{D} = \dfrac{AC}{BD}\\\\\bigstar\:\:\sf\dfrac{A}{B} + \dfrac{C}{D} = \dfrac{AD}{BD} + \dfrac{BC}{BD} = \dfrac{AD+BC}{BD} \\\\\bigstar\:\:\sf\dfrac{A}{B} - \dfrac{C}{D} = \dfrac{AD}{BD} - \dfrac{BC}{BD} = \dfrac{AD-BC}{BD}\\\\\bigstar \:\:\sf \dfrac{A}{B} \div \dfrac{C}{D} = \dfrac{A}{B} \times \dfrac{D}{C} = \dfrac{AD}{BC}\end{cases}}[/tex]
Find 30% decrease from 95
68.40
63.20
66.50
Answer:
66.50
stay home and be safe
Which of the following examples has a unit rate of 30 meters per second? Select all that apply. A) 90 meters in 5 seconds B) 90 meters in 3 seconds C) 120 meters in 6 seconds D) 150 meters in 5 seconds E) 240 meters in 6 seconds
The following examples have a unit rate of 30 meters per second:
B) 90 meters in 3 seconds.
D) 150 meters in 5 seconds.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
Given:
We have the unit rate of 30 meters per second.
A) 90 meters in 5 seconds.
The unit rate = 90/5 meters per second.
The unit rate = 18 meters per second.
B) 90 meters in 3 seconds.
The unit rate = 30 meters per second.
C) 120 meters in 6 seconds.
The unit rate = 20 meters per second.
D) 150 meters in 5 seconds.
The unit rate = 30 meters per second.
E) 240 meters in 6 seconds.
The unit rate = 40 meters per second.
Therefore, B and D have the unit rate of 30 meter per second.
To learn more about the division;
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The product of two numbers is 323 and the difference between them is 2. What are the two numbers?
Answer:
17 and 19
Step-by-step explanation:
17 * x = 323
x = 323 / 17
x = Second number = 19.
Step-by-step explanation:
323
2
=16×2=32
=3×1=3
=3
=16
=16,3
Simplify 4p+3q-3p-3q
Answer:
4p+3q-3p-3q
=4p-3p+3q-3q
=p+3q-3q
=p
Step-by-step explanation:
Please help! And serious answers please
Answer:
I think it is 10
Step-by-step explanation:
Well, there are 2 segment of 4 and 1 segment of 3, meaning it is about 10 away. (rounding to the nearest tenth)
For what value of n does (1/36)n=216
Answer:
(1/36)^n=216
(1/2^2 * 3^2)^n=216
n=-3/2
Step-by-step explanation:
I'm smart
¿En què situaciones usamos los nùmeros enteros positivos y negativos, escribe 2 ejemplos de cada uno? Por favor para ahora hocino me jalan :(
Respuesta:
Los enteros positivos, o números enteros, se utilizan de muchas maneras durante la vida diaria. Los números de carretera se contabilizan junto con los límites de velocidad de la carretera. Los enteros se utilizan para comprender qué velocidad conducir en una carretera determinada. Los números en los relojes se utilizan para entender la hora y para configurar las alarmas del reloj. Hay números en edificios y casas para identificar direcciones y números para los niveles de piso dentro de los edificios. Los mapas utilizan enteros para proporcionar dirección e información. Los enteros negativos pueden ser menos obvios para su uso en la vida cotidiana. Algunos ejemplos de uso negativo de enteros incluyen las lecturas del termómetro, manteniendo la puntuación en un juego de hockey, altitud y bancos. Aunque todos estos ejemplos utilizan enteros positivos, también utilizan enteros negativos. Un termómetro utiliza negativo enteros para representar temperaturas por debajo de cero. En hockey, cuando el otro equipo anota en la línea del primer equipo, es un menos, pero cuando el primer equipo anota, es un plus. La altitud que está por debajo del nivel del mar está representada con números negativos. Los bancos y las cooperativas de crédito representan débitos con enteros negativos y créditos con enteros positivos.
Amelia received $4.15 in tips from one table. All of her tips were in quarters, dimes and nickels. There were five less dimes than quarters and three more nickels than twice the number of quarters. How many dimes did she have?
Step-by-step explanation:
received $4.15 in tips from one table. All of her tips were 4.1500in quarters, dimes and nickels. There
Find the equation of the line through the points
(
−
9
,
−
14
)
and
(
18
,
1
)
.
Answer:
y=-13/9x+27
Step-by-step explanation:
What is the quadratic regression equation that fits these data?
Number of seconds Height (in feet)
0,11 1,13 2,13 3,15 4,9 5,1
Answer:
Step-by-step explanation:
do you know the answer?
what operation do we use 2/5 of 100? what operation is involved when you use the word of here?
Answer:
multiply
Step-by-step explanation:
2/5of 100 === 2/5 × 100
Answer =40
Answer:
multiplication
Step-by-step explanation:
the word of means to multiply, so it would be multiplication
the equation written out would look like:
[tex]\frac{2}{5}*100[/tex]
Olivia’s makes $825 per week at her job at Target. She is paid an additional $15.00 for every hour of overtime she works. Olivia’s goal was to make at least $900 on her paycheck. How much overtime would she have to work to accomplish her goal?
Write, solve and graph the inequality.
Answer:
Step-by-step explanation:
900-825=75
75/15=5
5 hours extra
change 64/11 into a mixed number
Answer:
5 9/11
Step-by-step explanation:
Ann works in a supermarket for $10.00 per hour. If her pay is increased to $12.00, then what is her percent increase in pay? Show your work.
Answer:
20% increase in her pay
Step-by-step explanation:
It's 20% increased, because it increased by $2, $2 goes into $10 5 times, and if you were to put that into percentages 2 is a fifth of 10 so that would 20%, because 20 is a fifth of 100.
Answer:
It's 20% increased,
Step-by-step explanation:
because it increased by $2, $2 goes into $10 5 times, and if you were to put that into percentages 2 is a fifth of 10 so that would 20%, because 20 is a fifth of 100.
Geometry: CC 2015 > Chapter 9: Chapter 9 Test > Chapter Test 9
Answer:
ohk where is test
Step-by-step explanation:
and question
Please help!!! Im trying to bring my math grades up!!!
What is the area of a circular pool with a diameter of 20 feet? Use 3.14
for pi and round your answer to the nearest hundredth.
Answer:
314
Step-by-step explanation:
To find the area of a circle using the diameter, use this formula:
[tex]A=\frac{1}{4}\pi d^2[/tex]
Substitute the diameter and the value of pi:
[tex]A = \frac{1}{4}*(3.14) * (20)^2[/tex]
[tex]A = 0.785 * 400[/tex]
A = 314
What is the area of the triangle??
Answer:
Answer is 12
Step-by-step explanation:
height is (4 square untis) and base is (6 square units).
Multiply 6 x 4 = 24 then you have to divide by 2 and it gives you 12.
Hope this helps !
32-+16 I need help on this sum because I am stuck. Just revision for a test in a month's time.
Answer: = 16
Step-by-step explanation: Hope this help :D
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Answer: I believe the answer is D
Step-by-step explanation:
Answer:
B. Number of days she trains
A golf driving range charges a flat fee of $20 to practice and then $5.75 for a buckets of balls. Write an equation that models the charges (C) in terms of the number of bucket of balls (b) that you use
Answer:
A
Step-by-step explanation:
Flat fee is $20 [initial cost]
Each bucket of ball is $5.75
b is the number of buckets and c is the total cost
To get total cost, we add the flat fee with the bucket fee. Bucket fee is $5.75 multiplied by the number of buckets, which is b.
So, we have:
cost = $20 + $5.75b
In equation it is:
Choice A is right.
Help! I will give brainliest to the best answer.
The high jumper set a new personal record when she cleared 5 feet 8 inches. How can we find how many inches high 5 feet 8 inches is?
Answer:
60 inches = 5 feet.
Step-by-step explanation:
12 inches in one foot, 12 x 5 = 60, meaning it would be 68 inches high
Find the length of AB
Answer:
35.6 units
Step-by-step explanation:
By intersecting chords theorem:
10*x = 16*16
10x = 256
x = 256/10
x = 25.6
AB = 10 + x
AB = 10 + 25.6
AB = 35.6