Step-by-step explanation:
0 and 1. is better according to me
what is the answer to the equation 5x+10=25
Answer:
x=7
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
5x+10=25
you want x to be by itself
5x=15
so subtract 10 from both sides
then dived 5 from 15
x=3
Rates & proportional relationships: Quiz 1
Which equation has a constant of proportionality
equal to 10?
Choose 1 answer:
2
y = х
20
30
y = -
3
©
12
y = -
2
5
Y= T
Answer:
The answer is B. when you do 30 / 3 you get 10
Six plus -2 times a number is the same as 26 plus six times the same number.
Step-by-step explanation:
let the number be x
and according to question,
six + 2 times a number = 2x + 6
26 + 6 times a number = 6x + 26
→ 2x + 6 = 6x + 26
→ -6x + 2x = 26 - 6
→ -4x = 20
→ x = 20/4 = 5
→ x = 5
therefore, the number is 5.
hope this answer helps you dear...take care and may u have a great day ahead!
Evaluate p+23 for p=8
Answer:
31
Step-by-step explanation:
p = 8
p + 23
= 8 + 23
= 31
31 is the answer.
Please help it’s due in tomorrow and I have no idea how to do it :).
Answer:
-2
Step-by-step explanation:
27^m÷243^n can be written as
3^3 ÷ 3^5
the base are both 3, make it one 3
3^3-5
= 3^-2
=3^a is 3^-2 and a is -2
PLEASE HELP ME!! WILL GIVE BRAINLIEST PLEASEEE!!
In order to prove that the diagonals of a rhombus are perpendicular to each other using the following figure, which triangle congruency postulate is used?
Answer:
SSS Postulate
Step-by-step explanation:
took the test and got it right! good luck! God bless you!
rearrange to make x the subject
[tex]y=\frac{3x-2}{x+1}[/tex]
please i need for hwk for exam
Step-by-step explanation:
Given equation : y = 3x - 2 / x+1for subject x» x = - 2 + y -3+ yThe formula for the area of a trapezoid is A=1/2(b1+b2)h. Solve the equation for b1
Use the graph below to find the x- and y-intercepts.
x -intercept : 2 ; y- intercept : 6
x-intercept: - 3 ; y - in intercept: 6
x-intercept : 6 y- intercept : -3
x-intercept : 6 y - i intercept : 2
Answer:
the y intercept is -3
the x intercept is 6
looks like your 3rd answer listed.
I need help with these
Answer:
The graph is linear and shaded below the line.
Step-by-step explanation:
It looks like the graph is linear, since the line is straight and continues on forever in both directions. It's not quadratic or absolute value, since quadratic graphs are curved and absolute value graphs branch off in two directions.
If you look at the Desmos graph attached, the shade is below the line, not above the line.
Finally, (0, 0) is not a solution since this point is not part of the shaded section of the graph.
Hopefully this helps! If you need further clarification, let me know!
over 2 days, students completed a math test. in the first test. there were 50 questions, and one student got 39 questions correct. which percent equation correctly represents this situation?
Answer:
78%
Step-by-step explanation:
39/50 x2 → 78/100 so 78%
3/4 + 3/16 and 3/4 - 3/16
Answer:
for the first it is 15/16 and the second is 9/16
to help you use desmos sictific coulator
My sis is having a hard time simplifying a problem. I'm not good at simplifying myself So I cant help her ):P
simplify 48 divided by 2 x 4
3 x 2 x 2 x 2 x 2 / 2 x 2 x 2
48 / 2 x 4
[48 can be simplified to 24 x 2 and 4 can be simplified to 2 x 2]
24 x 2 / 2 x 2 x 2
[24 can be simplified to 12 x 2]
12 x 2 x 2 / 2 x 2 x 2
[12 can be simplified to 6 x 2]
6 x 2 x 2 x 2 / 2 x 2 x 2
[6 can be simplified to 3 x 2]
3 x 2 x 2 x 2 x 2 / 2 x 2 x 2
Write an equation of the line that passes through point (6, 1) and has the slope m = -3.
y
4
Answer:
[tex]y = mx + c[/tex]
[tex]1 = - 3 \times 6 + c[/tex]
[tex]1 = - 18 + c[/tex]
[tex]1 + 18 = - 18 + 18 + c[/tex]
[tex]19 = c[/tex]
[tex]y = 6x + 19[/tex]
How do I simplify (9 square 3-4 square+2)-(x square 3+3 square 2 +1
Answer:
8x³ - 3x² - 4x + 3
Step-by-step explanation:
first, eliminate the parenthesis. you can just drop the first set, but you have to distribute the negative through the second set.
9x³ - 4x + 2 - x³ - 3x² +1
then combine like terms (terms with the same exponent)
8x³ - 4x + 3 - 3x²
then put it in the correct order
8x³ - 3x² - 4x + 3
Round 19.432 to the nearest whole.
I need help figuring out the answers to these kinda poorly worded questions
=======================================================
Explanation:
Let x be the unknown positive integer.
The square roots of x are [tex]\sqrt{x}[/tex] and [tex]-\sqrt{x}[/tex], representing the positive and negative square roots respectively.
Taking the difference of those means we subtract:
[tex]\text{PositiveRoot}-\text{NegativeRoot} = \sqrt{x} - (-\sqrt{x}) = \sqrt{x}+\sqrt{x} = 2\sqrt{x}[/tex]
Set that equal to 40 and solve for x
[tex]2\sqrt{x} = 40\\\\\sqrt{x} = 40/2\\\\\sqrt{x} = 20\\\\x = 20^2\\\\x = 400[/tex]
Therefore, the integer we're after is 400.
The positive square root of such is [tex]\sqrt{x} = \sqrt{400} = \sqrt{20^2} = 20[/tex]
And the negative square root is [tex]-\sqrt{x} = -\sqrt{400} = -\sqrt{20^2} = -20[/tex]
The difference of which is:
(Positive Root) - (Negative Root) = 20-(-20) = 20+20 = 40
This helps confirm the answers.
sec^2 (pi/2 - x) * [sin^2 (x) - sin^4 (x)]
Answer:
Explanation:
Identity: sec2θ=1+tan2θ
sec2(π2−x)−1=1+tan2(π2−x)−1
=tan2(π2−x)
Identity: tan(π2−θ)=cotθ
=cot2x
Please someone help me with this
Answer:
ANSWER:C
Step-by-step explanation:
sana maka tulong
what is 75 divided by 5
Answer: 75 / 5 = 15
Ways to write it:
75 ÷ 5 = 15
75 over 5 = 15
75⁄5 = 15
Please find the value of X
Answer:
x = 116°
Step-by-step explanation:
since l and m are parallel lines
by property
116° = x
f(x)= ve + 9. Find f'(x) and its domain.
Answer:
Find the domain by finding where the expression is defined.
Interval Notation: [tex](-[/tex]∞[tex],[/tex] ∞[tex])[/tex]
Set-Builder Notation: {[tex]x|x[/tex] ∈ R}
The function declaration [tex]f(x)[/tex] varies according to [tex]x[/tex], but the input function [tex]ve + 9[/tex] only contains the variable [tex]v[/tex]. Assume
[tex]f(v)=ve+9[/tex]
[tex]f(v)=ve+9[/tex]
Calculate the average speed (in miles per hour) of Cassandra who runs a 18 mile marathon in 6 hours.
0 24 mi/hr
O 3 mi/hr
O 0.333 mi/hr
O 12 mi/hr
help plssss
Cassandra runs 3 miles.
Hope this helps! :D
this is what my techer told me to do "Show a different way to solve 99x76"
Answer:
I think it's 76×99
Step-by-step explanation:
hope it helps
Hey anyone help please n thank you :)
Answer:
(9, 9) this is where they intersect at
Step-by-step explanation:
Hannah made four withdrawals of $20 from her checking account. She also
wrote a check for $215. By how much did the amount in her checking account
change?
(Show answer )
For the return trip, Moses suggests taking a shortcut that will save 4 miles from the total 40-mile hiking distance. He calculates that they will need to average 6 miles per day over the 4 days coming back, because 4 - 4 - 6. Is Moses correct?
(with work shown) what is 6396 / 15 then that answer -6000
Answer:
-5573.6
Step-by-step explanation:
4^3 • 5^3 and 20^3, Are the expressions equivalent? Yes or no?
Answer:
Yes
Step-by-step explanation:
4³ × 5³
(4 × 5)³
=20³
Both are equivalent
Hey there!
4^3 * 5^3 = ?
4^3
= 4 * 4 * 4
= 16 * 4
= [64]
5^3
= 5 * 5 * 5
= 25 * 5
= [125]
125 * 64
= [8,000]
20^3
= 20 * 20 * 20
= 400 * 20
= 8,000
8,000 = [8,000]
Therefore, this statement is TRUE so your answer is: [YES]
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
A balloon is being inflated mechanically in such a way that the volume is increasing at a constant rate of 15 cm3 /s. If the volume of the balloon was originally 30 cm3, determine the average rate of change of the volume of the balloon with respect to the radius of the balloon, to the nearest centimetre cubed per centimetre, between 0 s and 10s, and between 10 s and 20 s.Discuss the following question:Is the rate of change of volume with respect to radius constant?
The magnitude of the volume of the balloon increases at a faster rate than
the radius of the balloon.
The rate of change of the volume of the balloon with respect to radius is not constant.Reasons:
The rate at which the volume of the balloon is increasing, [tex]\dfrac{dV}{dt} = 15 \ cm^3/s[/tex]
The initial volume of the balloon, V = 30 cm³
The rate of change of the volume of the balloon with radius is given as follows;
[tex]\dfrac{\Delta V}{\Delta r}= \dfrac{V_2 - V_1}{r_2 - r_1}[/tex]
[tex]Volume \ of \ the \ balloon, \ V = \dfrac{4}{3} \cdot \pi \cdot r^3[/tex]
[tex]V = 30 + \dfrac{dV}{dt} \times t[/tex]
∴ V = 30 + 15·t
At t = 0, V = 30 cm³
Where;
[tex]r =\sqrt[3]{ \dfrac{3 \cdot V}{4 \cdot \pi} }[/tex]
When V = 30
[tex]r =\sqrt[3]{ \dfrac{3 \times 30}{4 \cdot \pi} } \approx 1.93[/tex]The radius, r ≈ 1.93 cm.
At t = 10 s., we have;
V = 30 + 15 × 10 = 180
[tex]r =\sqrt[3]{ \dfrac{3 \times 180}{4 \cdot \pi} } \approx 3.5[/tex]At t = 20 s., we have;
V = 30 + 15 × 20 = 330
[tex]r =\sqrt[3]{ \dfrac{3 \times 330}{4 \cdot \pi} } \approx 4.29[/tex]Therefore;
Between 0 s. and 10 s., we have;
[tex]\dfrac{\Delta V}{\Delta r}=\dfrac{180 - 30}{3.5-1.93} \approx 96[/tex]Rate of change of the volume of the balloon with respect to the radius of the balloon to the nearest centimeter, between 0 s and 10 s is 96 cm³/cm.
Between 10 s. and 20 s., we have;
[tex]\dfrac{\Delta V}{\Delta r}=\dfrac{330 - 180}{4.29 - 3.5} \approx 190[/tex]Between 10 s. and 20 s. the rate of change is approximately 190 cm³/cm.
Therefore;
The rate of change of the volume of the balloon with respect to radius is not constant, but increases as the volume of the balloon increases.
Learn more here:
https://brainly.com/question/13489213