Answer: 95
Step-by-step explanation:
follow the order of operations P.E.M.D.A.S
First multiply 15 with 5 and you get 75. Next, 14+75=99
now for the last part 2^2 is 4
99-4=95
if it’s not 95 it’s 85
I need help with math pls
The answer is 6
Explanation:
f(x) = radical 2x-1
] 1,2[
] 1/2, +oo[
[1/2, +oo[
Answer:
○ [tex]\displaystyle [\frac{1}{2}, ∞[[/tex]
Step-by-step explanation:
All you want to do is set the radical equal to zero to determine your domain, and sinse substituting [tex]\displaystyle \frac{1}{2}[/tex] in for [tex]\displaystyle x[/tex] would make this 0, it would be the INCLUDED endpoint, so your bracket faces [tex]\displaystyle \frac{1}{2},[/tex] then continues on infinitely.
I am joyous to assist you at any time.
**The ONLY time this is not the case is when you have a rationale-radical function, in which you must never have 0 in the denominatour.
A random variable X has a lognormal distribution if Y = ln X has a normal distribution. For this problem, assume that Y has a mean and standard deviation of 0.353 and 0.754
(a) What are the possible values X can take?
(b) What is the probability that X is between 1 and 2?
Answer:
Step-by-step explanation:
From the given information:
For X to be valid, the possible values of X should be greater than zero i.e. X > 0
If X obeys a lognormal distribution
Then; Y = In X
So,
Now,
[tex]E(X) = e^{0.353} + \dfrac{1}{2}(0.754)^2[/tex]
[tex]E(X) = 1.8913[/tex]
Also;
[tex]V(X) = e^{2 \times 0.353 + 2(0.754)^2} -e^{2\times 0.353 + (0.754)^2}[/tex]
V(X) = 2.7387
∴
SD(X) = 1.6549
[tex]P(1 < X < 2) = P(X < 2) - P(X < 1)[/tex]
= 0.108
6 batteries cost 29 dollars what is the unit rate?
Answer:
Step-by-step explanation:
In a unit rate, the denominator is always 1. So, to find unit rate, divide the denominator with the numerator in a way that the denominator becomes 1. For example, if 50km is covered in 5.5 hours, the unit rate will be 50km/5.5 hours = 9.09 km/hour
Answer:
[tex]\large \boxed{\sf{4.83 \ dollars/battery}}[/tex]
Step-by-step explanation:
Unit rate is a ratio that compares two measurements.
Denominator is 1
[tex]\displaystyle \sf \frac{29\ dollars}{6\ batteries}=4.83\ dollars/battery[/tex]
If a pound of turkey costs $0.82, how much will n pounds cost?
difference between -20 and -17
Answer:
-3
Step-by-step explanation:
because it says difference and differences means subtract so -20-(-17)=-3
The following statement is a good definition of...
Answer:
It is not converse since converse is if q, then p in a conditional statement. So I will say that is a truth table
Solve the system by substitution.
3r + y = 5
5x – 4y = -3
The solution is?
2) Addisyn has a 12-sided die. If she rolls
the die 250 times, how many times can
Addisyn predict she will roll a 9?
A. about 9 times
B. about 27 times
C. about 21 times
D. about 108 times
Which of the following fractions is the largest 2/3 1/2
Answer: 2/3
Step-by-step explanation:
2/3 = 4/61/2 = 3/64/6 is greater than 3/68x + y = 17
5x + 5y = –20
Answer:
X=3 Y=-7
Step-by-step explanation:
You can solve a system of equations a number of ways. Substitution makes the most sense in this case. Take the top equation and set it equal to y making it: y=17-8x
Then substitute y in the bottom equation for the y solved in the top. So,
5x + 5(17-8x) = -20
Then solve for x
x=3
Now that we know x, plug it back into the equation for y
y = 17 - 8(3)
y = -7
So your solution is (3, -7)
Answer:
Step-by-step explanation:
40x + 5y = 85
-5x - 5y = 20
35x = 105
x= 3
15 + 5y = -20
5y = -35
y = -7
(3, -7)
I really need help I posted this question 3 times and no answers, can someone help I even put extra points and ill give brainliest <333
Answer:
In a quadrilateral ABCD, ∠A = 100°, ∠B = 105° and ∠C = 70°, find ∠D.
Solution:
Here the sum of the four angles
or, ∠A + ∠B + ∠C + ∠D = 360°
We know, ∠A = 100°, ∠B = 105° and ∠C = 70°
or, 100° + 105° + 70° + ∠D = 360°
or, 275° + ∠D = 360°
∠D = 360° - 275°
Therefore, = 85°
i hope this was helpful. <3
crown?
A 24-foot ladder leaning against a wall makes a 30 ° angle with the ground . How high up on the building is the top of the ladder ?
HELP ASAP
Answer:
[tex]12\:\mathrm{ft}[/tex]
Step-by-step explanation:
When the ladder is leaning against the wall, a 30-60-90 triangle is formed. The ladder acts as a 24-foot hypotenuse. Because the height is facing the [tex]30^{\circ}[/tex] angle, the height is half the hypotenuse (30-60-90 rules). If you forget the side rules for a 30-60-90 triangle, simply use basic trig on the right triangle:
[tex]\sin 30^{\circ}=\frac{h}{24},\\h=24\sin 30^{\circ},\\h=24\cdot \frac{1}{2},\\h=\fbox{$12\:\mathrm{ft}$}[/tex].
Helppppppppppppppppppp
Answer:
Interior angles sum to 180 So 92+ 57+ x= 180 So x= 31pls help me, i’ll give brainly
Answer/Step-by-step explanation:
First, find the slope (m) of Line L using the points (0, 5) and (2, 1):
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - 5}{2 - 0} = \frac{-4}{2} = -2 [/tex]
Slope (m) = -2
✔️Since the line is parallel bro Line L, it would also have the same slope value of -2.
We can use the slope (m) and a point (a, b) of the line to find its equation using the point-slope formula, y - b = m(x - a).
Substitute (a, b) = (3, 0), and m = -2 into y - b = m(x + a):
Thus,
✅y - 0 = -2(x + 3)
Rewrite equation in slope-intercept form
y = -2(x + 3)
✅y = -2x - 6
Round 992 to the nearest ten
Answer:
990
Step-by-step explanation:
990
2 is lower than 5 so we round down. Instead of rounding up to 1, round down to 0
5k + (-7) = 13 what does k =
Answer:
k = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
5k + (-7) = 13
Step 2: Solve for k
Simplify equation: 5k - 7 = 13Addition Property of Equality: 5k - 7 + 7 = 13 + 7Simplify equation: 5k = 20Division Property of Equality: 5k/5 = 20/5Simplify equation: k = 4Step 3: Check
Plug in k into the original equation to verify it's a solution.
Substitute in k: 5(4) + (-7) = 13Multiply: 20 + (-7) = 13Add: 13 = 13Here we see that 13 does indeed equal 13.
∴ k = 4 is the solution to the equation.
Answer:
Step-by-step explanation:
Here you go mate
PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
Step 1
5k+(-7)=13 Equation/Question
Step 2
5k+(-7)=13 Remove parenthesis
5k=20
Step 3
5k=20 Divide 5 from the sides Check (5)(4)=20
answer
4
Are these scalene triangles similar?
solve for the y-intercept. Show your work! Then list the slope-intercept form of the line (-15,-17) (14,10)
Answer:
The line is y = 27/29x - 88/29The y-intercept is (0, -88/29)Step-by-step explanation:
Given point:
(-15,-17), (14,10)Slope-intercept form:
y = mx + bUse slope formula:
m = (y₂ - y₁)/(x₂ - x₁)m = (10 - (-17))/(14 - (-15)) = 27/29Use one of the points to find the y-intercept:
y = 27/29x + b10 = 27/29*14 + bb = (29*10 - 27*14)/29b = -88 /29The line is:
y = 27/29x - 88/29Answer:
slope for y intercept={10--17)/(14--15)=27/29
Solve for x.
ASAP, please help me
Answer:
8
Step-by-step explanation:
180=90+40+6x+2
180=132+6x
48=6x
x=8
Answer:
x=4 i think havent done this in a long time
Step-by-step explanation:
Im serious this time is it appropriate to use a old notebook for a new class in highschool?
Specifically math cuz they made us get big five subject notebooks and we haven't even filled half of it and the years almost over I thought about reusing it for next year's math class
Answer:
Of course it is!
Step-by-step explanation:
You might want to have a separator, so you know what page your new year textbook starts. I hope this is a food tip to save money!
Under ideal conditions a certain bacteria population is known to double every three hours. Suppose that there are initially 100 bacteria. Estimate the size of the population after 20 hours.
Answer:
the estimation of the size of the population after 20 hours is 10159
Step-by-step explanation:
The computation of the size of the population after 20, hours is shown below;
= 100 2^(20 by 3)
= 10159.36
If we divide 20 by 3 so it would give 6.66 that lies between 6 and 7
So the estimation of the size of the population after 20 hours is 10159
hence, the same is relevant
Answer:
The answer is "10159"
Step-by-step explanation:
Every 3 hours the population doubles, with an initial population of 100.
[tex]\to P(t) = 100 \times 2^{\frac{t}{3}}[/tex]
[tex]P(t)= \text{The population of bacteria}\\\\ t = \text{time in hours} \\[/tex]
when t=20
[tex]\to p(20)= 100 \times 2^{\frac{20}{3}} \\[/tex]
[tex]= 100 \times 101.593667\\\\ =10159.3667[/tex]
How do I solve this
Answer:
Step-by-step explanation:
I'm sorry forgot how to exactly solve it
Simplify by combining like terms.
4 1/3 B + 2 3/4 B + 1
Remember to simplify the mixed number!
Enter the number that goes in the green box.
You are playing the game "Hidden Treasure" and your hint is that the treasure is 9 spaces away from the point (0, 0). Which of the following points could contain the treasure?
Answer:
(9, 0)
(-9, 0)
(0, 9)
(0, -9)
Step-by-step explanation:
Mary and Brittany ran for 6th grade class president. The ratio of votes for Mary to votes for Brittany was 4:3. Which statement is true?
Group of answer choices
For every 4 votes Mary received, Brittany received 3 votes.
For every vote Brittany received, Mary received 4 votes.
For every vote Brittany received, Mary received 3 votes.
For every 4 votes Brittany received, Mary received 7 votes.
Answer:
A: For every 4 votes Mary received, Brittany received 3 votes.
Step-by-step explanation:
What is the equation of the line that has a slope of 14
and goes through the point (8,−3)?
y=1/4x−5
y=1/4x+5
y=1/4x−11
y=1/4x+1
Answer:
y=1/4x+1
please mark as brainliest
3 2/3 divide 1 2/7 in simplest form
Answer:
2 23/27
Step-by-step explanation:
3 2/3 / 1 2/7
= 11/3 / 1 2/7
= 11/3 / 9/7
= 77/27
= 2 23/27
Hope it helped!
what the other person said
Answer:
2 23/27
Step-by-step explanation:
3 2/3 / 1 2/7
= 11/3 / 1 2/7
= 11/3 / 9/7
= 77/27
= 2 23/27
Click on the correct answer.
One morning it rains 1/2 inch. That afternoon it rains another 1/3 of an inch.
What is the total amount of rainfall?
1/6 of an inch
2/6 of an inch
2/5 of an inch
5.6 of an inch
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!
Answer:
n - 8 ≥ 10
Step-by-step explanation:
8 less than a number would be n - 8. At least means greater than or equal to so the answer is n - 8 ≥ 10.