Answer:
x(4 × 2) + x(3 × 4)
Step-by-step explanation:
The question says "which of the following equations" which infers you have already been given options. However, none were provided in the question so my answer may be slightly different than the given options as there's several ways to solve this problem.
Monday through Thursday = 4 days × 2 hours per day
Friday through Sunday = 3 days × 4 hours per day
To find the total for one week, add the two expressions together:
(4 × 2) + (3 × 4)
The question states for "x weeks" so:
x(4 × 2) + x(3 × 4)
This is one way the equation can be written
Another way is:
x[(4 × 2) + (3 × 4)]
If neither of these are answers for your mutliple choice question, then please provide the options and I will let you know which is correct
Jane earns $280 per week. Of her salary, 231% goes to taxes. After taxes, she puts 50% in savings and keeps 50% for spending. Of her
spending money, she uses 35% for food. About how much money does Jane spend on food each week?
A $26.22
B. $19.60
C. $23.10
D. $37.61
Answer:
i think its A. or D.
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
0.2325 times 280 is 65.1
280-65.1
214.9
214.9 divided by 2
107.45
107.45 times 0.35
37.6075 rounded to 37.61
On a bike trip across the United States Rodney notes that he covers about 190 miles every 4 days if he continues at this rate use a ratio table to determine how many miles he could bike in 6 days
Will has -$55.00 in his bank account. If he saves the $2.50 his mom gives him for lunch every day, how many days will it be until he has a balance of at least $0?
Answer:9
Step-by-step explanation:
You must be at least 48 inches tall to ride an amusement park ride, and your little sister is 39 inches tall. How
many inches i must she grow before she may ride the ride?
Whats the inequality ?
Answer:
9
Step-by-step explanation:
48-39=9
Answer:
9
Step-by-step explanation:
person above me is correct
Solve:
12 x 1/2=
1/2 x 18 =
Step-by-step explanation:
12*1/2 = 6
1/3 * 18 =9
Hope this helps
If the absolute value of the correlation is approximately one, then the points lie close to a line that slopes upward or downward?
Answer:
if it is positive then it goes upward and if negative it goes downward..so if it is approximately 1 then it will be constant or straight...
Find the slope between the two points:
(2, 5) and (-2, 5)
Answer:
slope = 0
Step-by-step explanation:
m=y2-y1/x2-x1
m=5-5/-2-2
m=0
Find equation with points (-3,-8) and (1, 16)
Answer:
The equation of the line is y = 6x + 10.
Step-by-step explanation:
(-3,-8) (1 ,16)
x1, y1. x2,y2
Gradient(m) = (y2 - y1)/(x2 - x1)
= (16 - (-8))/(1 - (-3))
= 24/4 = 6
Equation of a line is given as:
(y - y1) = m(x - x1)
y - (-8) = 6(x - (-3))
y + 8 = 6x + 18
y = 6x + 10
HELP AGAIN ASAP IM DUMB
Answer:
the answer should be C y= -7x - 2
Answer:
c. y = -7x - 2
Step-by-step explanation:
its the only one that has the correct y-intercept (-2)
estimate the product choose a method 63 * 18
Answer:
[tex]the \: product : 63 * 18 = 63 \times18 \\ 63 * 18 = 1,134.[/tex]
Factor the polynomial function over the complex numbers.
f(x)=x4−x3−2x−4
Enter your answer in the box.
f(x)=
Answer:
2Step-by-step explanation:
Given function
f(x)=x⁴−x³−2x−4Factoring the polynomial
x⁴−x³−2x−4 = (x⁴−4) − (x³+2x) =(x² + 2)(x² - 2) - x(x² + 2) =(x² + 2)(x² - x - 2) =(x + i√2)(x - i√2)(x - 2)(x + 1)As we see there are 2 complex factors
Answer:
(x+1)(x-2)(x+i√2)(x-i√2)
Step-by-step explanation:
A conical water tank with vertex down has a radius of 11 feet at the top and is 20 feet high. If water flows into the tank at a rate of 10 ft3/minft3/min, how fast is the depth of the water increasing when the water is 12 feet deep?
Answer:
0.073 ft/min
Step-by-step explanation:
The radius of the tank = 11 feet and the height of the tank = 20 feet. The depth of water = h = 12 feet, let r be the radius of the water, hence:
[tex]\frac{r}{h}=\frac{11}{20}\\ \\r=\frac{11}{20}h\\ \\The \ volume\ of\ the \ tank\ is:\\\\V = \frac{1}{3} \pi r^2 h=\frac{1}{3}\pi (\frac{11}{20}h)^2.h=\frac{121}{1200}\pi h^3 \\\\Given\ that\ rate=\frac{d}{dt}(V)= 10ft^3/min\\\\\frac{dV}{dt}= \frac{d}{dt}( \frac{121}{1200}\pi h^3)\\\\\frac{dV}{dt}=\frac{121}{1200}\pi (3h^2\frac{dh}{dt})\\\\\frac{dV}{dt}=\frac{121}{400}\pi h^2(\frac{dh}{dt})\\\\Given\ water\ is\ 12ft\ deep, i.e.\ h=12.Substituting:\\\\[/tex]
[tex]10=\frac{121}{400}\pi (12^2)\frac{dh}{dt} \\\\\frac{dh}{dt} =0.073\ ft/min[/tex]
Can someone please help, ty!!
(Will mark brainliest)
Answer:
The slope is 4/5 (blue) because if you go up 4 and right 5 from the dot at (-1,-2), you would be at the next dot which is at (4,2)
Step-by-step explanation:
Hope this helps and pls do mark me brainliest if you can:)
Five less than twice a number is ten
Nine
“five less” than “twice a” number is “nine”.p-by-step explanation:
All the factors of 200 and all the factors of 300 are factors of 600. True or false and explain.
Answer:
true because 200 and 300 are factors of 600
Step-by-step explanation:
Answer:
I don't think so
Step-by-step explanation:
600 is a composite number.
Prime factorization: 600 = 2 x 2 x 2 x 3 x 5 x 5, which can be written 600 = (2^3) x 3 x (5^2)
The exponents in the prime factorization are 3, 1 and 2. Adding one to each and multiplying we get (3 + 1)(1 + 1)(2 + 1) = 4 x 2 x 3 = 24. Therefore 600 has exactly 24 factors.
Factors of 600: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 150, 200, 300, 600
Factor pairs: 600 = 1 x 600, 2 x 300, 3 x 200, 4 x 150, 5 x 120, 6 x 100, 8 x 75, 10 x 60, 12 x 50, 15 x 40, 20 x 30 or 24 x 25
Taking the factor pair with the largest square number factor, we get √600 = (√100)(√6) = 10√6 ≈ 24.494897. (Note: 2 + 4 = 6 and 49 + 48 = 97 so this square root and √6 can be easy to remember.)
Mount Whitney is 3072m tall. Convert the height to kilometers.
Can someone help me with this
Answer:
2 1/8 = h
2 1/2 = k
2 5/8 = L
1 7/8 = g
1 5/8 = e
2 3/4 = m
1 1/2 = d
2 1/4 = I
1 3/8 = c
2 7/8 = n
1 1/8 = a
Step-by-step explanation:
If ĐPQR = 50°, what is the measure of its complement?
Answer:
The measure of its complement is 40°
Step-by-step explanation:
The sum of the measures of the complementary angles is 90°If the measure of an angle is x°, then the measure of its complement is 90° - x°∵ The measure of angle PQR equal 50 degrees
∴ m∠PQR = 50°
∵ Angle x is the complement angle of angle PQR
→ That means the sum of the measures of angle x and angle PQR is 90°
∴ m∠x + m∠PQR = 90
→ Substitute measure of angle PQR by 50°
∴ m∠x + 50 = 90
→ Subtract 50 from both sides
∴ m∠x + 50 - 50 = 90 - 50
∴ m∠x = 40°
∴ The measure of its complement is 40°
Plz help with 20-22 thank you
Answer:
#20 = 13
#21 = 1
#22 = -3
Step-by-step explanation:
Replace all of the x values in the equations for the one in the table.
Then solve.
This is the equation
Y= -4x - 3
A. x = -4
Replace x with -4.
Y = -4 (-4) - 3
Solve.
Y = 16 - 3
Y = 13
#20 = 13
B. x = -1
Replace x with -1
Y = -4 (-1) - 3
Solve.
Y = 4 - 3
Y = 1
#21 = 1
C. x = 0
Replace x with 0.
Y = -4 (0) - 3
Solve.
Y = 0 - 3
Y = -3
#22 = -3
All even numbers are also perfect squares.
True or False
Answer:
Flase. Actually most perfect squares are odd numbers
Step-by-step explanation:
hope this helps
NEED brainlyest please
have a good day
In a direct variation, y = 16 when x = 4. Write a direct variation equation that shows the
relationship between x and y.
Write your answer as an equation with y first, followed by an equals sign.
In a direct variation, y = 16 when x = 4. The direct variation equation shows the relationship between x and y will be y=4x.
What is the equation?An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that,
y = 16 when x = 4
There are often two different sorts of variables in analytics. We obtained that independent variables will have an impact on dependent variables. What occurs as a result of the independent variable is referred to as a dependent variable.
In the given equation x is the independent variable while y is the dependent variable.
16 = 4(4)
y=4x
Thus, in a direct variation, y = 16 when x = 4. The direct variation equation shows the relationship between x and y will be y=4x.
Learn more about the equation here,
https://brainly.com/question/10413253
#SPJ2
help me pleaseeeeeeee
Answer:
gladly
Step-by-step explanation:
Kelly needs to buy 5 notebooks and 3 folders for school. If notebooks cost $6 and folders cost $2, how much money does Kelly need for school supplies?
Answer:
$36
Step-by-step explanation:
2 1/2 x 1 3/5? In simplest form?
Answer:
4
Step-by-step explanation:
Sam must practice piano for 75 minutes each week. He played 15 minutes on Monday and 36 minutes on Wednesday. How much did he have to play on Friday to finish all 75 minutes?
Answer:
He had 24 minutes to finish all the hours
Step-by-step explanation:
75-51=24
What is
Solve 5(x+4)<75
Answer:
x < 11
Step-by-step explanation:
5 (x + 4) < 75
5 (x + 4)/5 < 75/5
x +4 < 15
x + 4 - 4 < 15 - 4
x < 11
Can somebody answer this Asp please
Answer:
the answer is the third one C
g A spotlight on the ground is shining on a wall 20m away. If a woman 2m tall walks from the spotlight toward the building at a speed of 0.8m/s, how fast is the length of her shadow on the building decreasing when she is 4m from the building
Answer:
0.3 m/s
Step-by-step explanation:
[tex]\dfrac{dx}{dt}=\text{Speed of person}=0.8\ \text{m/s}[/tex]
As the two triangles in the diagram are similar to each other we have
[tex]\dfrac{y}{12}=\dfrac{2}{8}\\\Rightarrow y=12\times \dfrac{2}{8}\\\Rightarrow y=3\ \text{m}[/tex]
Again as the triangles are similar we have
[tex]\dfrac{y}{2}=\dfrac{12}{12-x}\\\Rightarrow x=12-\dfrac{24}{y}[/tex]
Differentiating the above equation with respect to time we get
[tex]\dfrac{dx}{dt}=\dfrac{-24\times-1}{y^2}\dfrac{dy}{dt}\\\Rightarrow \dfrac{dy}{dt}=\dfrac{dx}{dt}\times\dfrac{y^2}{24}\\\Rightarrow \dfrac{dy}{dt}=0.8\times \dfrac{3^2}{24}\\\Rightarrow \dfrac{dy}{dt}=0.3\ \text{m/s}[/tex]
The speed at which the shadow is changing is 0.3 m/s.
HELP URGENT WILL GOVE BRAINLIEST
Answer:
A. -5i√3
Step-by-step explanation:
-√-75 = - √(i^2)* 25 *3 = - 5i√3
Help me
I will mark is the most brilliant answer
Answer:
Number one is D/12.5
Step-by-step explanation:
correct me if im wrong plz