Answer:
Step-by-step explanation:
step 1: 0.75 x 6 = 4.5
step 2: 0.75 x d = 0.75d
step 3: 4.5 + 0.75d = 5.25d
It's correct answer
what is the answer for -9=-x-5
Answer:
x=4
Step-by-step explanation:
-9=-x-5
-9+5=-x
-4=-x
x=4
Create a polynomial with two terms and a degree of 4
hey mate☺️☺️ here's your answer......
4x'4 + 1
Is 9.68 a irrational or rational number the 8 is reapeting
What is the answer to this 3x-15= ax+7
Answer:
x=11
Step-by-step explanation:
pls help meh
i will give brainlyest
Answer:
75
Step-by-step explanation:
Use order of operations to solve this.
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction.
First, do 20 x 4.
[tex]80 - 100 / 20[/tex]
Then, divide 100/20.
[tex]80 - 5[/tex]
= 75
Gabriela asistió al buen fin y compró a crédito un refrigerador de $8,500.50, un televisor de $3,500.50, una computadora de $6,999.00 y una lavadora de $4,999.00. ¿A cuánto asciende la deuda de Gabriela?
Answer:
23,999
Step-by-step explanation:
Un refrigerador de $8,500.50
Un televisor de $3,500.50
Una computadora de $6,900.00
Una lavadora de $4,999.00
8,500.50 + 3,500.50 + 6,999.00 + 4,999.00 = 23,999.00
The opening of a tunnel that travels through a mountainside can be modeled by [tex]y = - \frac {2}{15} (x - 15)(x + 15)[/tex], where x and y are measured in feet. The x-axis represents the ground.
a. Find the width of the tunnel at ground level.
b. How tall is the tunnel?
Answer:
(a) 30 feet
(b) 30 feet.
Step-by-step explanation:
Given that the opening of a tunnel that travels through a mountainside can be modeled by
[tex]y=\frac{-2}{15} (x-15)(x+15)[/tex], where x and y are measured in feet.
[tex]\Rightarrow y=\frac{-2}{15}(x^2-15^2}[/tex]
[tex]\Rightarrow y=\frac{-2}{15}{x^2-225}\cdots(i)[/tex]
(a) At the ground level, [tex]y=0[/tex]
So, the width of the tunnel at ground level is distance between the extreme point of the tunnel on the grount.
For, [tex]y=0[/tex], the extreme points of the tunnel.
[tex]0=\frac{-2}{15} (x-15)(x+15)[/tex]
[tex]\Rightarrow (x-15)(x+15) =0[/tex]
[tex]\Rightarrow x= 15, -15[/tex]
So, the extreme points of the tunnel are, [tex]x_1=15[/tex] and [tex]x_2=-15[/tex].
Hence, the width of the tunnel at the ground level
[tex]= | x_1 - x_2 |[/tex]
[tex]=|15-(-15)|[/tex]
[tex]=30[/tex] feet.
(b) The maximum height of the tunnel can be determiment by determining the maxima of the given function.
First determining the value of x for which the slope of the graph is zero.
[tex]\frac{dy}{dx}=0[/tex]
From equation (i),
-2x=0
[tex]\Rightarrow x=0[/tex]
And [tex]\frac{d^2y}{dx^2}= -2[/tex]
which is always negative, so at x=0 the value of y is maximum.
Again, put x=0 in equation (i), we have
[tex]y=\frac{-2}{15}{0^2-225}[/tex]
[tex]\Rightarrow y=30[/tex] feet.
Hence, the tunnel is 30 feet tall.
Given the equivalent expressions below, which property is being applied?
(2+n)+7 and 2+(n+7)
Get off my Property
Commutative Property
Distributive Property
Associative Property
Answer:
Distributive property
Han wants to build a dog house. He makes a list of the materials needed:
At least 60 square feet of plywood for the surfaces
At least 36 feet of wood planks for the frame of the dog house
Between 1 and 2 quarts of paint
Han's budget is $65. Plywood costs $0.70 per square foot, planks of wood cost $0.10 per foot, and paint costs $8 per quart.
write inequalities to represent the material constraints and cost constraints in this situation.
Answer:
a) [tex]p \geq 60\,ft^{2}[/tex], b) [tex]w \geq 36\,ft[/tex], c) [tex]1\,qt \leq q \leq 2\,qt[/tex], d) [tex]0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65[/tex]
Step-by-step explanation:
In this question we proceed to translate each sentence into mathematical language and, more specifically, inequations:
a) At least 60 square feet of plywood for the surface
Let [tex]p[/tex] the surface area of plywood, measured in square feet, and the inequation is:
[tex]p \geq 60\,ft^{2}[/tex] (Eq. 1)
b) At least 36 feet of wood planks for the frame of the dog house
Let [tex]w[/tex] the total length of wood planks, measured in feet, and the inequation is:
[tex]w \geq 36\,ft[/tex] (Eq. 2)
c) Between 1 and 2 quarts of paint
Let [tex]q[/tex] the total capacity of paint, measured in quarts, and the inequation is:
[tex]1\,qt \leq q \leq 2\,qt[/tex] (Eq. 3)
d) Han's budget is $ 65. Plywood costs $ 0.70 per square foot, planks of wood cost $ 0.10 per foot and paint costs $ 8 per quart.
Dimensionally speaking, we understand that cost equals unit cost multiplied by physical variable (i.e. Area, length or capacity). Let [tex]p[/tex], [tex]w[/tex] and [tex]q[/tex] the surface area of plywood, the total length of wood planks and the total capacity of paint, respectively. The sentence is represented by the following inequation:
[tex]0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65[/tex] (Eq. 4)
Write an inequality to represent each constraint(material and cost)
Inequality to represent cost constraints is 0.70p + 0.10pw + 8pa ≤ 65Plywood:
plywood ≥ 60 square feet
Planks:
planks ≥ 36 feet
Paints
1 quarts ≤ paints ≤ 2 quarts
Inequality to represent cost constraint
Plywood = $0.70
planks of wood = $0.10
paint costs $8
Total cost = $65
0.70 × p + 0.10 × pw + 8 × Pa ≤ 65
0.70p + 0.10pw + 8pa ≤ 65
Read more:
https://brainly.com/question/11067755
Simplify the expression
Answer:
14
Step-by-step explanation:
5+(3*3)
5+9
14
Please help I need this now
54 + ( 48+72)x2/3
Answer:
134
Step-by-step explanation:
Your answer is simply 134
Question 17 of 30
Select the rate that is the greatest.
A. $70 per 8 hours
B. $1200 per 80 hours
C. $10 per hour
D. $800 per 40 hours
Answer:
$800 per 40 hours
Step-by-step explanation:
In photo
Factor completely 4x^2-81
Answer:
(2x - 9)(2x + 9)
Step-by-step explanation:
4x^2 - 81 = (2x - 9)(2x + 9)
Answer:
(2x+9)(2x-9)
Step-by-step explanation:
kind of simple actually
4x^2-81=(2x+9)(2x-9)
how is a dilation different from other transformations?
What is the prime factorization for 180?
A. 4 · 5 · 9
B. 2 2 · 5 · 9
C. 2 · 9 · 10
D. 2 2 · 3 2 · 5
Answer:
2^2 x 5 x 9.
Step-by-step explanation:
This will give you the answer because when multiplying all of this you will get 180. Answer B.
Please select the best answer from the choices provided
A
B
C
D
Answer:
1. Is -3, or answer choice C
PLZ HELP ME I NEED THIS ASAP PLZZZ
Your parents have been advised to save 5% of their income for your college education, which would include money for housing, tuition, books, and fees. How much would your parents have saved in one year, following the recommended 5%, if they had an average household income of $48,948? Show your work
Answer:
2447.40
Step-by-step explanation:
48,948 * .05 = 2447.40
Answer:
2447.40 that the answer
what is 4%5*7-2= to?
A child needs to take 1/2 tablespoons of medicine per day in 4 equal doses. How much medicine is in each dose?
PLEASE HELP
Answer:
1/8 tablespoons
Step-by-step explanation:
Since the child needs to take 1/2 tablespoons off medicine per day in 4 equal doses, you will divide the 1/2 tablespoons into 4 equal doses, so you need to divide by 4.
You can do this by multiplying 1/2 by 1/4.
[tex]\frac{1}{2} * \frac{1}{4} = \frac{1}{8}[/tex]
Answer:
it would be 1/8
Step-by-step explantion:
simply divide
1/2÷4
=1/8
(that should be right)
Identify the factored form of each polynomial. 4r + 11x + 6 4x + 10x + 6 11. 4r + 14x +6 (4x+3)(x+2) :: (x+3)(4x + 2) :: (2x+3)(2x + 2)
Answer:
1) 4x^(2)+11x+6 Factored--> (4x+3) (x+2)
2) 4x^(2)+10x+6 Factored--> (2x+3)(2x+2)
3) 4x^(2)+14x+6 Factored--> (x+3)(4x+2)
Step-by-step explanation:
Factor: 4x^(2)+11x+6 (step by step)
1) Split the second term (11x) into two terms
4x^2 + 8x + 3x + 6
2)Factor out common terms in the first two terms, then in the last two terms.
4x(x + 2) + 3(x + 2)
3) Factor out the common term x + 2
(x + 2) (4x + 3)
Repeat the above steps for similar questions!
What is the change in elevation from -87.2 Feet to 33.6 Feet?
Answer:
120.8 feet
Step-by-step explanation:
Peter can mow the lawn in 40 minutes and John can mow the lawn in 60 minutes. How long will it take for them to mow the lawn together?
Help me. 1,2,3, and 4 are the only options for all letters so there is no lack of information in this picture.
Answer:
Step-by-step explanation:
a: 2
b: 4
c: 3
d: 4
e: 6
PLEASE ANSWER ASAP WILL GIVE BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Dusan had $49.60 in his checking account. He wrote one check for $24.40 and another check for $25.49. Dusan says that because he always rounds to the nearest dollar, he will always have more money in his account than his estimate. Is Dusan correct? Explain.
The snooze buttonon your alarm clock activates the alarm every 5 minutes. The snooze button on your cell phone activates the alarm every 7 minutes. Both alarms activate at 7:00 A.M. You hit each snooze button as each alarm activates. At what time are both alarms activated again?
Answer: 7:35 a. M
Step-by-step explanation:
Given that:
Snooze on alarm = 5 minutes
Snooze on cellphone = 7 minutes
If both activates at 7:00 a. M
Time at which both will activate again ;
Obtain the Lowest Common Multiple of 5 and 7
_5 __|5 ___|7
_7__ |1 ___|7
____ |1 ___| 1
Lowest common multiple = (5 * 7) = 35
Hence, both alarms will sound together again after 35 minutes = 7:00a.m + 35 minutes = 7:35 A. M
What is the slope of the line through (-1,8) and (3,-4) ?
Answer:
m = −3
Step-by-step explanation:
Use the slope formula to find the slope m .
Find the total earnings based on the given information.
Base: $22,000, Total Sales: $99,000, Commission: 3%
Enter the correct answer in the box.
Answer:
$24,970
Step-by-step explanation:
22,000+(99,000•0.03)=22,000+2,970=24,970
being a rectangle is a necessary condition for being a square
Answer:
false
Step-by-step explanation:
all rectangles are squares not all squares are rectangles
help! its due today.
Answer:c
Step-by-step explanation:
Answer:
a) [tex]\sqrt{90}[/tex]
Step-by-step explanation:
The square root of 90 is approximately 9.487.
Help me ASAP major grade
Answer:
$5.58
Step-by-step explanation:
Because divide 12 by 67:
67 ÷ 12 = 5.58
5.58 is the answer
Hope this helped! Pls Brainliest!
Answer:
$5.58
Step-by-step explanation:
$67.00÷12=$5.58
Hope this helps!