An air mattress originally containing 24 cubic feet of air was deflated at a rate of 3 cubic feet of air per minute.
Which of the graphs correctly models the situation?
I had this question on a quiz. The answer is B if I remember correctly.
The sum of the length and width of a rectangle is more than 15 units. The length is 3 units more than the width, x. Which model and solution is correct for this situation?
Answer: [tex]6, 9\ \text{units}[/tex]
Step-by-step explanation:
Given
The Sum of length and width is [tex]15\ units[/tex]
length is 3 units more than the width
width is [tex]x[/tex]
length is [tex]x+3[/tex]
Their sum is 15
[tex]\Rightarrow x+x+3=15\\\Rightarrow 2x=12\\\Rightarrow x=6\ \text{units}[/tex]
Length is [tex]x+3=9\ \text{units}[/tex]
Width is [tex]x=6\ \text{units}[/tex]
Find the area for each trapezoid.
Answer:
A=130
Step-by-step explanation:
which expression is equivalent to the problem shown?
Solve the following quadratic formula and enter the solutions below from smallest to largest. Round to the nearest tenth if necessary.
Equation: 4x2+8x+7=4
Solution: Answer
and
Answer:
[tex]\:x=-\frac{3}{2},x=-\frac{1}{2}[/tex]
Step-by-step explanation:
Subtract 4 from both sides:
[tex]4x^2+8x+7-4=4-4[/tex]
Simplify:
[tex]4x^2+8x+3=0[/tex]
Solve with the quadratic formula:
[tex]x_{1,\:2}=\frac{-8\pm \sqrt{8^2-4\cdot \:4\cdot \:3}}{2\cdot \:4}[/tex]
[tex]x_{1,\:2}=\frac{-8\pm \:4}{2\cdot \:4}[/tex]
Separate the solutions:
[tex]x_1=\frac{-8+4}{2\cdot \:4},\:x_2=\frac{-8-4}{2\cdot \:4}[/tex]
The solutions to the quadratic equation are:
[tex]\:x=-\frac{3}{2},x=-\frac{1}{2}[/tex]
Add up 2/5,3/10 and 1/2 . Give your answer as a mixed number
Answer:
1 1/5
Step-by-step explanation:
To add fractions there are Three Simple Steps: Step 1: Make sure the bottom numbers (the denominators) are the same, Step 2: Add the numerators, put that answer over the denominator, Step 3: Simplify the fraction (if needed)
Mark me brainliest please!
suppose you lean out a window of a tall building and use a sling to launch a stone straight up. the stone starts with a velocity of 69 feet per second. it leaves the sling 365 feet above the ground.
Answer:
y= 69x + 356
Step-by-step explanation:
y= 69x + 356
It goes 69 feet per second hence the 69x and it starts 356 feet in the air
The height of the stone above the ground at any time t can be described by the quadratic function h(t) = -16t^2 + 69t + 365.
How to write a function?Assuming that the acceleration due to gravity is -32 feet per second squared (neglecting air resistance), we can use the following kinematic equation to describe the height of the stone as a function of time:
h(t) = -16t²+ vt + h₀
where:
h(t) is the height of the stone above the ground at time t
v is the initial velocity of the stone (69 feet per second, in this case)
h₀ is the initial height of the stone (365 feet above the ground, in this case)
Substituting the values of v and h0, we get:
h(t) = -16t² + 69t + 365
Therefore, the height of the stone above the ground at any time t can be described by the quadratic function h(t) = -16t² + 69t + 365.
To know more about a function follow
https://brainly.com/question/20350422
#SPJ2
Determine the center and radius of the circle described by the equation. (x+1)2+(y−3)2=25
Answer: 2 (x + y) = 29
2 (x + y - 2) = 25
y = 29/2 - x
Expanded forms:
2 x + 2 y - 4 = 25
2 x + 2 y - 29 = 0
Real solution:
y = 29/2 - x
Solution:
y = 29/2 - x
Solution for the variable y:
y = 1/2 (29 - 2 x)
Step-by-step explanation:
hope its helpss
If it takes 4 jugs to water 15 plants, how many plants can you water with 12
jugs?
Answer:
31.2
Step-by-step explanation:
Divide 4/15= 2.66
12x2.6= 31.2
This might be wrong..
Math question Pls help
Answer:
B. Strong negative association
Step-by-step explanation:
It's a negative because the slope is going from left to right downwards
Write an expression that matches; “8 less than z”
Answer:
ᗴ᙭ᑭᖇᗴՏՏIOᑎ:[tex]z - 8[/tex]
An airplane flies 105 miles per half an hour. How far can it fly in 1.25 hours at the same speed. Brainliest for correct answer. (ANSWER ISN't 262.5)
Answer:
Airplane fly 262.5miles far.
solution given:
rate=105 miles per 0.5 hour=210miles per hour
distance =rate ×time=210×1.25=262.5miles
slope of (-3,5) (3,6)
Answer:
The slope is [tex]\frac{1}{6}[/tex]
Step-by-step explanation:
What percent is represented by the shaded area?
Pls answer quickly I will report links
Answer:
18
Step-by-step explanation:
18 is the correct answer
Tamu ran 30 minutes and burned 170 calories. PART A: Which equations can be used to find the average number of calories, c, burned per minute?
Answer:
170 divided by 30 or calories divided by minutes
Step-by-step explanation:
the answer could be either but they both mean the same thing just in different words
how of find the area of a composite figure
Step-by-step explanation:
A composite figure is made up of simple geometric shapes. To find the area of a composite figure or other irregular-shaped figures, divide it into simple, nonoverlapping figures. Find the area of each simpler figure, and then add the areas together to find the total area of the composite figure. Formula = a(a=lw+bh)
Find the product, using suitable properties:
(-23)×48
Answer:
-1104
Step-by-step explanation:
(−23)(48)
= (−1104)
Give me Brainllest
jess travels 5 miles to school and pam travels 10 km. Who travels further? plz help i got 2 minutes ti answer
Answer:
pam
Step-by-step explanation:
10k is over 6 miles
1,2,5 please I don’t really understand this lesson :(:/
AKA 1,2,5 only!
Answer:
Step-by-step explanation:
Volume of a triangular pyramid = [tex]\frac{1}{3}(\text{Area of the triangular base})(\text{Height})[/tex]
1). Volume of the pyramid = [tex]\frac{1}{3}(72)(15)[/tex]
= 360 cm³
2). Volume of the pyramid = [tex]\frac{1}{3}(\text{Area of the triangular base})(\text{Height})[/tex]
Area of the triangular base = [tex]\frac{1}{2}(\text{Base})(\text{height})[/tex]
= [tex]\frac{1}{2}(8)(5)[/tex]
= 20 cm²
Therefore, volume of the pyramid = [tex]\frac{1}{3}(20)(12)[/tex]
= 80 cm³
5). Volume of the cone = [tex]\frac{1}{3}\pi r^{2}h[/tex]
Here, r = radius of the circular base
h = Height of the cone
Volume of the cone = [tex]\frac{1}{3}\pi (2)^2(4)[/tex]
= [tex]\frac{16\pi }{3}[/tex]
= 16.76 cm³
Solve for an angle in right triangles
Answer:
66.42
Step-by-step explanation:
Use the figure to find the measures of the numbered angles.
1 = 61° because it is a corresponding angle to angle 6
2 = 119° because it is an alternate exterior angle to angle 7
3 = 61° because it is an alternate angle to angle 1
4 = 119° because it is an alternate angle to angle 2
5 = 119° because it is an alternate angle to angle 7
6 = 61° because is is an alternate angle to 61°
7 = 119° because it and 61° are supplementary angles (total 180° together)
Answer:
1 = 61° because it is a corresponding angle to angle 6
2 = 119° because it is an alternate exterior angle to angle 7
3 = 61° because it is an alternate angle to angle 1
4 = 119° because it is an alternate angle to angle 2
5 = 119° because it is an alternate angle to angle 7
6 = 61° because is is an alternate angle to 61°
7 = 119° because it and 61° are supplementary angles (total 180° together)
Step-by-step explanation:
GODD SOMEONE HELP ME RIGHT NOW PLEASE THIS IS DUE TODAY AND I AM DUM I GIVE POINTS AND BRAINLIEST JUST HELP MEEE
Answer:
-5 and -6
Step-by-step explanation:
For trinomial factoring, you need two numbers that add up to get the -11x and two numbers that multiply to get 30.
-5 + (-6) = -11
-5 × -6 = 30
Find the volume of each figure.
Answer:
891
Step-by-step explanation:
v=bh which is base-9x11=99 height=9 so,
v-99x9=891
PLEASE ANSWER THESE! I WILL GIVE BRAINLIEST!! YOU NEED TO Solve each equation. Find the missing number by step by step!
Answer:
Where is the image to the equations?
Step-by-step explanation:
Answer:
there's no picture???
Step-by-step explanation:
y = x-6
5x - 2y = -30
Show work
Answer:
y=x-6
5x-2y=-30
5x-2(x-6)=-30
3x+12=-30
3x=-42
x=-14
y=x-6
y=-14-6
y=-20
(-14, -20)
Step-by-step explanation:
i hope this helps :)
i used substitution, by the way
HELP ASAP!!!
Two random samples were taken to determine how often people in a community listen to the local radio station each month.
The first sample surveyed 15 people as they exited the bank on Main Street. The first sample found that the mean number of hours they listened to the radio each month was 20.
The second sample surveyed every sixth person as they exited the only local grocery store until 100 people were surveyed. The second sample found that the mean number of hours they listened to the radio each month was 12.
Which statements are true? Check all that apply.
The second sample is random.
The second sample is likely to be more representative of the population.
The first sample is likely to be more representative of the population.
The second sample will give a better representation because is it larger.
The first sample will give a better representation because it is smaller.
Community members are more likely to listen to the radio station an average of 12 hours a month than 20 hours a month.
Answer:
The answers to this question are 1,2,4,6. Hope this helps you
Step-by-step explanation:
Choose the correct choice for the product Tu:
f
[1]
o
O Undefined
DONE
The resulting matrix creates an image that is a
reflection across the
DONE
Answer:
[-1,4] and line y = -x
Step-by-step explanation:
Answer:
B. [tex]\left[\begin{array}{ccc}1\\-4\end{array}\right][/tex]
B. line y = -x
Step-by-step explanation:
edge :)
have a lovely day <3
Ahh help, I need this question due in 10 mins-
A spinner has 20 equal-sized sections. Two of the sections are blue. a. What is the probability that the spinner will land on blue? b. Use words to describe the probability.
Answer:
a. 2/20 or 10%
b. Theoretically 2 out of every 20 times the spinner is spun, it will be blue.
Step-by-step explanation:
