Answer:
Alex spends 2/3 of his paycheck (p) on food and $3 in loose change on coffee. how much money did he spend
Step-by-step explanation:
Ax + 4y = 2, (3, -1) : Find A
Answer:
Step-by-step explanation:
we can subsitiute 3 and -1 for x and y respectively to get 3A - 4 = 2. After this you add 4 to both sides and get 3A = 6. divide by 3 and you get a = 2
Sound intensity, in decibels, d, can be written using a comparison factor, x, that compares sound intensity to the standard threshold of hearing. d = 10log(x) A sensor measures the sound intensity, in decibels, of an office over time. The decibel reading was consistently above 50, but never above 70. On what interval is the factor by which the office noise is related to the standard threshold of hearing? (17, 18.5) (17, 18.5] (100,000, 10,000,000] (100,000, 10,000,000)
Answer: (100,000, 10,000,000]
Step-by-step explanation:
The interval is given by ( 100,000 , 10,000,000], the correct option is C.
What is the Threshold Value ?The threshold value is the minimum value above which the desired results can be expected.
The decibel reading was consistently above 50, but never above 70.
d = 10log(x)
50 = 10log(x)
5 = log x
10⁵ = x
x > 10⁵
d = 10log(x)
70 = 10log(x)
x = 10⁷
From the given data
x ≤ 10⁷
Therefore, the interval is given by ( 100,000 , 10,000,000], the correct option is C.
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Just please help me Solve for h 2x+y=rh
Answer:
[tex]h = \frac{2x+y}{r}[/tex]
what the answer to the math problem –5(–2) =
Answer:
10
Step-by-step explanation:
hxbcjxjxjdjhdhhdbxbeeu10
help its due in an hour and i cant solve this
Answer: D
Explanation: y = 5x + 8
PLz mark brainliest:)
what is 4+4+6
I will make brainiest whoever is first
Answer:
14
Step-by-step explanation:
Katie baked 215 cookies that she wants to divide equally among her 32 classmates. How many whole cookies will each student get, and how many will be leftover?
A) 5, r5
B) 6, r10
C) 6, r23
D) 7, r0
Answer:
6 r10
Step-by-step explanation:
If you do 215 divided by 32 you get 6.71875 so i just rounded your answers and got B) if not be its D)
Answer:
C
Step-by-step explanation:
Will give brainliest 5. (07.03)
What is the solution to the following equation? (4 points)
4(3x - 6) + 15 = 27
2
Please help
Which of the following is equivalent to the inequality shown below?
4x + 0.9 ≥ 0.1
4x + 9 ≥ 1
4x + 9 ≥ 1
40x + 9 ≥ 1
40x + 9 ≥ 1
40x + 90 ≥ 10
40x + 90 ≥ 10
40x + 90 ≥ 1
I Need A Expert To Answer This! Find The Measure Of The indicated Angle In The Diagram.
Answer:
So,you're answer will be 21°{degree}..
Answer:
m∠YPQ = 159°
Step-by-step explanation:
m∠QRP = 107
m∠RQP = 52
m∠RPQ = x
m∠QRP + m∠RQP + m∠RPQ = 180°
107 + 52 + x = 180
159 + x = 180
x = 21°
m∠RPQ = x = 21°
m∠RPQ + m∠YPQ = 180°
21° + m∠YPQ = 180°
m∠YPQ = 159°
The ratio to boys to girls is 3:4.
If there is 12 boys how many girls are there?
Answer:
16
Step-by-step explanation:
3:4 to 12:?
3*4=12
so 4*4=16
12:16
what is 1000×100
PLEASE HELP ME
Answer:
answer is 100000 is a correct answer .
Answer:
100000
Step-by-step explanation:
Which statements correctly describe the graph of the function f(x) = x3 – 4x2 – 3x + 18? Select three options.
There are three unique solutions to the function when y=0.
The function has a double root.
As x increases from negative infinity to positive infinity, the y-values increase, decrease, and then increase again.
As x approaches negative infinity, y approaches positive infinity.
The domain and range of the function are the set of real numbers.
Answer:
(B) The function has a domain of all real numbers.
(C) The function has a range of {y|–Infinity < y < Infinity}.
(E) The function passes through the point (3, –27).
Step-by-step explanation:
The statements are true.
What is faction?A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.
The given function is:
f(x) = x³- 4x² - 3x + 18
After plotting its graph can see the graph of the function.
The statements that are true are:
As x increases from negative infinity to positive infinity, the y-values increase, decrease, and then increase again.
You can see this in the graph and may be really hard to see it without the graph, the easier way would be to see the derivate of f(x) and see that is first positive, then negative, and then positive.
f'(x) = 3x² - 8x - 3
As the leading coefficient is positive, the arms open up, and f'(0) = -3
Then is easy to see that from left to right, is positive, then negative, and then positive again.
The domain and range of the function are the set of real numbers.
For the domain, we do not have any denominator nor weird function that has problems in a particular value, so the domain is the set of all real numbers.
And as you can see, as the leading coefficient is an odd power of x, the range will go from minus infinity to infinity (you can also see it in the graph).
The function has a double root.
Yes, in the graph you can see two roots, but this is a 3rd-degree polynomial, so it must have 3 roots, this means that one of the roots in the graph is a double root. (Where the double root is at x = 3, as you can see in the graph)
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How do you do this? I am really confused.
Answer:
B. Hope this helps
Step-by-step explanation:
Answer:
B) both shapes have all angles of equal measure
Step-by-step explanation:
Squares and equilateral triangles have all angles of equivalent measure. Squares have 90 degrees on all 4 sides and equilateral triangles have 69 degrees on all 3 sides
Can someone help me please
Answer:
flip and slides only
Hoped this helped you
<3
Red
For each pair of mathematical expressions, determine if the expressions have equal values. Select each pair of expressions that came out to be equal.
Please note, not all pairs will come out to the same value. We want you to determine if the expressions in each answer option have the have the same value.
Question options:
36÷3+3 and 22+2
36
÷
3
+
3
a
n
d
2
2
+
2
−(23)2and 49
-
(
2
3
)
a
n
d
4
9
8(−9) and −12−60
8
(
-
9
)
a
n
d
-
12
-
60
1+24 and 1−14
what is 6x-7-8x+4 combine like terms ?
Answer:
-2x-3
Step-by-step explanation:
6x-7-8x+4
6x-8x=-2x
-7+4=-3
-2x-3
Answer:
-2x-3
Step-by-step explanation:
The graph shows the relationship between time
and the number of soda bottles a machine can
make. Use the points (2,90) and (6,270) to find
the number of soda bottles the machine can make
each minute.
Answer:
.
Step-by-step explanation:
if f(x) = 5x-12, what is f(2) ?
Answer:
-2
Step-by-step explanation:
5(2)-12
10-12
+-2
Answer:
-2
Step-by-step explanation:
[tex]f(2) = 5(2) - 12 = - 2[/tex]
I think this is the right answer
The measures of the angles of a triangle are 40, 55 and 85. What is the measure of the largest exterior angle of the triangle?
The largest external angle will be that of the smallest interior angle. It will be equal to 180 minus the interior angle, which it forms a linear pair with.
Ext. Angle = 180 - 40 = 140 degrees
if you answer this your really cool B)
Answer:
5
Step-by-step explanation:
they are vertical angles
Answer:
5
Step-by-step explanation:
8 is the opposite and therefore the same angle across the line m
What’s the value for x
Answer:
5 = x
Step-by-step explanation:
5 divided by 2 = 2.5
12.5 divided by 2.5 = x = 5
Answer:
x= 5
Step-by-step explanation:
As Figure A is a scale image of B. It means that the measurments of A are just multiplied by an integer to get the measurements of B.
2 times 2.5= 5
or
5/2= 2.5
Then, knowing the integer we multiply to get from m< A to m<B is 2.5, we DIVIDE
12.5/ 2.5 to get "x" which is 5
Evaluate. Write your answer as a mixed number.
2 2/3×3 1/4=
Find the distance between the two numbers on a number line. Write your answer as a mixed number.
−2 1/2, −5 3/4
3.An increasing linear function with independent variable x and dependent variable y approaches the point (−1, 1). If this function is defined only when x is greater than −1 and y is greater than 1, what are the domain and range of this function?
A.The domain is (−1,+[infinity]) and the range is (−1,+[infinity]).
B.The domain is (−1,+[infinity]) and the range is (1,+[infinity]).
C.The domain is (1,+[infinity]) and the range is (−1,+[infinity]).
D.The domain is (1,+[infinity]) and the range is (1,+[infinity]).
4.The function y=3x−6 is defined for all values of y less than 12. Determine the value of x that corresponds to the upper boundary y=12.
A.18
B.6
C.2
D.54
5.The function y=2x+5 is defined for every y-value that is not less than 11. What is the domain of this function?
A.(−[infinity], 3)
B.[3,+[infinity])
C.(3,+[infinity])
D.(−[infinity], 3]
Answer:
3.
C. The domain is (1,+[infinity]) and the range is (-1,+[infinity])
4.
B. 6
5.
A. (-[infinity], 3)
Step-by-step explanation:
The Linear function has one independent and one dependent variable. The value of dependent variable can be found by taking the equation equals to 0. The domain function is set to analyse the range. The range can be set as -1 to 1. Any number between this is acceptable but outside this is not considered in the domain.
8.3E+2 using scientific notation
Answer:
8.3*10^2
Step-by-step explanation:
The e just equals 10.
Did this help?
Answer: 0.083
Step-by-step explanation:
need help please please please please
. A car travels 605 miles in 11 hours. What is the average number of miles traveled per hour?
Answer:
55 miles per hour
Step-by-step explanation: You divide by the speed
605 miles/ (55 miles per hour)= 11 hours
hope this helped
Points have the following physical properties:
none
thickness
depth
height
4. Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the two numbers.
Answer:9 & 7
Step-by-step explanation:
Let x be the first number and y be the second.
2x + y = 25
3x - y =20
1) Add them together.
5x = 45
x = 9
2) Solve for y.
2(9) + y = 25
y=7
3) Check your work on the other equation.
3(9) - (7) = 20
27 - 7 =20
20 = 20
I NEED HELP PLEASE ILL GIVE YOU BRAINLIEST T-T
Answer:
1 true
2 false
3 true
4 false
5 true
6 true
Step-by-step explanation: