Answer:
-7
Step-by-step explanation:
-2 + 3v = -23 >> -2 + 23 = -3v >> 21 = -3v >> v = -7
Answer:
V=-7
Step-by-step explanation:
To solve this equation, you must first add the -2 to both sides. (This cancels it out since you only want one variable on each side of the equation. It would be the other way around if the variable were positive) Now that you have the equation 3v=-21, you can divide. To get the v by itself, you must divide both sides by 3. This gives you the answer to the equation.
Hope this helps!!
the diagram shows a right angled triangle 15cm 37 degrees
Answer:
h = 11.3 cm
use tane rule:
[tex]\sf tan(x)= \dfrac{opposite}{adjacent}[/tex]
Here:
x = 37°opposite = hadjacent = 15 cm=========
[tex]\hookrightarrow \sf tan(37)= \dfrac{h}{15}[/tex]
[tex]\hookrightarrow \sf h = tan(37) * 15[/tex]
[tex]\hookrightarrow \sf h = 11.3 \ cm[/tex]
Which graph is defined by the function given below?
y= (x + 2)(x + 7)
Answer:
Graph A
Step-by-step explanation:
Two unique letters are chosen at random from the alphabet. What is the approximate probability that the first letter chosen is a? 0. 0385 0. 0400 0. 0769 0. 800.
Answer:
Option A :- 0. 0385
Step-by-step explanation:
Since a is the first letter in the alphabet
and in total there are 26 alphabet
We divide 1 by 26
⇢ 1 ÷ 26
⇢ 0.038461538461538
⇢ 0. 0385
Probability = 0. 0385
~Done~
Answer:
[tex]\huge\boxed{\bf\:0. 0385}[/tex]
Step-by-step explanation:
Told number of alphabets in the English language
= {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z}
= 26 alphabets.
Out of all these 26 alphabets, we need to find the probability that the letter chosen at random will be 'A'.
Probability that the letter chosen at random is 'A'
= Alphabet 'A' / Total number of letters
= 1/26
= 0.0385
[tex]\rule{150pt}{2pt}[/tex]
How to get rid of a square root in the denominator?.
Step-by-step explanation:
you multiply both the top and bottom by the root if it was alone.
let's say if we had (1 - sqrt(2)) in the denominator. here we multiply both the numerator and the denominator by the conjugate.
the conjugate is formed by changing the sign between two terms in a binomial. so in this case the conjugate is
(sqrt(2) -1)
make sure to ask if you need any further guidance :)
you flip a coin and get heads 11 times, so the chance of getting heads in 11/30. Is this an example of theoretical or expiremntal probabilty
Please answer. Correct answer will be brainliest.
Answer:
161
Step-by-step explanation:
It's a system of equations, let's solve it step-by-step!
Equation: [3 * 2^5 + 13 * (-2)] + 7[8 - (4 - 9)]
2^5 = 32
so we have [3 * 32 + 13 * (-2)] + 7[8 - (4 - 9)].
3 * 32 = 96
so we have [96 + 13 * (-2)] + 7[8 - (4 - 9)].
13 * (-2) = -26
so we have [96 - 26] + 7[8 - (4 - 9)].
96 - 26 = 70
so we have 70 + 7[8 - (4 - 9)].
4 - 9 = -5
so we have 70 + 7[8 - (-5)].
8 - (-5) = 13 (the signs cancel out)
so we have 70 + 7[13].
7 * 13 = 91
so we have 70 + 91.
70 + 91 = 161
Therefore our answer is 161.
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
We can try for loops along with conditional statements to get the indices of the needed numbers.
What is zero-based indexing?Zero-based indexing indexes the elements of an array or such container starting from 0, instead of starting from 1 (which is what we usually do in real life).
For this case, assuming we want to write code in python, and array being simple list, plus we want the index of only first two numbers found which add up to the target, we have:
for idx_1 in range(len(arr)//2 + 2):
num_1 = arr[idx_1]
found = 0
for idx_2 in range(idx_1 + 1, len(arr)):
num_2 = arr[idx_2]
if target == num_1 + num_2:
print(idx_1, idx_2)
found = 1
break
if found: break
Here we used 'range' function for first loop, which defaulty generates integers from 0, but can generate integers from whatever integer. Like in the second loop, it generates number from idx_1 + 1. Also, it doesn't include the last integer, given by the upper limit for the range.
This python code gives the indices of a pair of two numbers from the array given which adds up to the target.
Thus, we can try for loops along with conditional statements to get the indices of the needed numbers.
Learn more about zero-based indexing here:
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which functions corresponds with the table
Answer:
what table???
Step-by-step explanation:
pls help me and if you dont know the answer dont answer this
Answer:
A no. is correct
Step-by-step explanation:
Hope it will help you..
The bus will leave in 38 minutes. what time will it leave ?
Answer:
4:08
Step-by-step explanation:
The current time is 3:30, 38 minutes later would be 4:08
om was in a contest at the library to read as many book as wiree months. At the end of the content he camerkets for the he read. The table below shows on tumber of cok read canh *** BOOKS SAM READ Month January February March Number of Books 15 13 16 Mam was able to buy a prize for every 5 tickets he had earned. Sam bought as many prizes as he could with his tickets? How many prizes was sam able to buy 2 Show your work and explain your answer.
The number of prizes that Sam was able to buy based in the division illustrated is 17 prizes.
How to calculate the prize?The total number of books that was read will be:
= 15 + 13 + 16
= 44 books
Since he earned 2 tickets for each bok read, the number of tickets gotten will be:
= 2 × 44
= 88
Finally, Sam was able to buy a prize for every 5 tickets he earned. Therefore, the number of prizes will be:
= 88/5
= 17 tickets
Learn more about division on:
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PLEASE HURRY
Which graph shows the solution set for 2x+3 >-9?
-8-7-6-54-3-2-1012
+
-8-76-54-3-2-1012
-87-6-5-4-3-2-1012
-87-6-5-4
9
9
-1 0 1 2
The graph that represents the solution set for x > -6 is Graph D.
What is Number line?In mathematics, a number line is a straight line that represents numbers and their relative positions. It is a visual representation of the real number system.
To find the solution set for the inequality 2x + 3 > -9,
2x + 3 > -9
Subtract 3 from both sides:
2x > -12
Divide both sides by 2:
x > -6
The solution set for the inequality is x > -6, which means that x is greater than -6.
So, Among the given graphs, the graph that represents the solution set for x > -6 is Graph D.
Learn more about Number line here:
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Needing help badlyyyyyy
Answer:
D, D, B
Step-by-step explanation:
multiply 744 by 1,000 to get your meters.
7 times the cost of each lawn, X will equal 210.
25 minus 12 is 13
this holds true for the one below also
Find the lateral surface area of the cylinder. Use 3.14 for π, and round your answer to the nearest hundredth. Refer to your STAAR 8th Grade Math Reference Sheet for the appropriate formula.
A) 376.99 cm2
B) 362.16 cm2
C) 367.59 cm2
D) 354.18 cm2
I have a 10 question quiz that I'm really struggling on because i don't know how to work out problems like these, so if someone could please help me that would be great.
The area of the cylinder is the amount of space on it.
Using the assumed values, the lateral surface area of the cylinder is 314 square centimeter
How to determine the lateral surface area?The lateral surface area of a cylinder is:
L = 2πrh
The question is incomplete. Assume the following parameters
Radius, r = 10
Height, h = 5.
Then we have:
L = 2 * 3.14 * 10 * 5
Evaluate the product
L = 314
Using the assumed values, the lateral surface area of the cylinder is 314 square centimeter
Read more about cylinders at:
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Find the area of each face of the triangular prism and the total surface area.
20 cm
10 cm
6 cm
20 cm
8 cm
Answer:
Area: Bottom face: A = (20 cm)(8 cm) = 160 cm²
Back face: A = (20 cm)(6 cm) = 120 cm²
Sloped face: A = (20 cm)(10 cm) = 200 cm²
Total: 528 cm²
Step-by-step explanation:
Hope this helps!
If number of electricity power failures occur according to a Poisson distribution with an average of 4 failures per 5 months. 12. What is the probability that there will be at least one failure during the coming month
Answer:
123
Step-by-step explanation:
Help please
Number 4
Answer:
you need to enlarge the picture so I can see it
Step-by-step explanation:
Then I'll edit my answer and do the problem.
Daniel earns $5.00 an hour babysitting. He babysat 6 hours Friday and more hours Saturday, and he earned
$55.00 for the weekend. How many hours did he babysit on Saturday?
A. 5
B. 11
C. 9
D. 6
Answer:
5
Step-by-step explanation:
First divide 55 by 5 to find the number of hours he sat in total. Then subtract the 6 he sat on friday.
I do not know this answer Write an expression for the operation described below.
add a to 4
Answer:An expression for the sequence of operations described is: In this exercise, you're required to write an mathematical (algebraic) expression
Step-by-step explanation:hope this can help you :)
Can someone help me
Answer:
A) 24
Step-by-step explanation:
½(6)(6+2) = ½ (48) = 24
store pays $50 for a pair of shoes. The markup is 25%.
a. What is the selling price for the shoes?
The selling price is $_
.
Question 2
b. What is the total cost for a person to buy the shoes including a 6% sales tax?
The total cost is $_
.
Answer:
75%
Step-by-step explanation:
Answer:
The selling price is $62.50 And b is is 75%
Step-by-step explanation:
Which of the numbers below are common multiples of 4 and
6? Select all that apply.
A) 8
B) 12
C) 18
D) 24
E) 48
Answer:
B, D, E
Step-by-step explanation:
can someone help me out with this question
bh step by step procedure?
Answer:
60°
Step-by-step explanation:
the angle Θ between vectors a and b is
cosΘ = [tex]\frac{a.b}{|a||b|}[/tex] = [tex]\frac{\frac{15}{2} }{3(5)}[/tex] = [tex]\frac{\frac{15}{2} }{15}[/tex] = [tex]\frac{1}{2}[/tex] , then
Θ = [tex]cos^{-1}[/tex] ( [tex]\frac{1}{2}[/tex] ) = 60°
Answer:
cos θ= 60°
Step-by-step explanation:
cos θ= a . b/।a। ।b।
=15/2/3×5
=15/30
=1/2
cos θ=cos60°
θ=60
A bus travels 25 yards in 1 second. How many miles will it travel in 2 hours?
Answer:
102 miles
Step-by-step explanation:
In 2 hours there are 7200 seconds ([tex]60*60 = 3600 * 2 = 7200[/tex])
In one second the bus travels 25 yards, so; [tex]7200 * 25 = 180,000 yards[/tex]
Converting yards to miles is: [tex]x (yards) / 1760[/tex]
[tex]180000/1760 = 102.2727272...[/tex]
∴ The bus will travel 102 miles in 2 hours.
solve for x x(x+3)=2(x+15)
Answer:
x = -27
Step-by-step explanation:
x(x+3)=2(x+15)
x+3=2x+30
x+3-2x+30
x-2x=30-3
-x=30-3
-x=27
x = -27
triangle with side lengths 4 feet, 5 feet, and 8 feet
Answer:
Yed, it is possible as
Step-by-step explanation:
4 + 5 = 9
So, sum of two sides of a triangle is always greater than the third side(largest one)
Factor. Step by step.
Answer:
(3x-2)^2
Step-by-step explanation:
3^2x^2-2*3x*2+3^2
(3x)^2 -2*3x*2+2^2
And youll get (3x-2)^2
What is the measure of z?
Select all ratios that are in their simplest form.A 25:21B 4:22C 6:28D 5:25E 30:27
WILL GIVE BRAINLIEST (08.03) Consider the following pair of equations:
y = 3x + 3
y = x − 1
Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
(- 2, - 3 )
Step-by-step explanation:
y = 3x + 3 → (1)
y = x - 1 → (2)
substitute y = 3x + 3 into (2)
3x + 3 = x - 1 ( subtract x from both sides )
2x + 3 = - 1 ( subtract 3 from both sides )
2x = - 4 ( divide both sides by 2 )
x = - 2
substitute x = - 2 into either of the 2 equations and evaluate for y
substituting into (2)
y = - 2 - 1 = - 3
solution is (- 2, - 3 )
Answer:
y = -3, x = -2
Step-by-step explanation:
1. Substitute "y = x - 1" in for y in the first equation:
x - 1 = 3x + 3
2. Isolate x:
x = 3x + 3 + 1
3. Combine like terms:
-2x = 4
4. Solve for x:
-2x/-2 = 4/-2
x = -2
5. Solve for y with substitution (using the second equation):
y = -2 - 1
y = -3
hope this helps!