Answer:
x=-15/2 and y=7
Step-by-step explanation:
y=-4x-23
y=-2x-8
Two methods, substitution and elimination. Elimination is the easiest, so you can subtract the equations.
y=-4x-23
-(y=-2x-8)
----------------------
y=-4x-23
-y=2x+8
------------ so solve :)
0=-2x-15
becomes 2x=-15
so x=-15/2
------------------------ plug in x to solve for y
and you get y=7
solve: log3(x)+log3(x-2)=log3(x+10)
log3 ( x ) + log3 ( x - 2 ) = log3 ( x + 10 )
log3 ( x )( x - 2 ) = log3( x + 10 )
log3 ( x^2 - 2x ) = log3( x + 10 )
x^2 - 2x = x + 10
x^2 - 3x - 10 = 0
( x - 5 )( x + 2 ) = 0 ==》x = 5 Or x = - 2
Hi, can someone please help me find the answer? There should be more than one and I would really appreciate it!
Answer:
A B C and F
Step-by-step explanation:
When one is over an exponent that means the exponent is negative. so then you find two exponents that equal -6 :)
Find the value of x.
10
11
12
13
Answer:
11=x
Step-by-step explanation:
if (1x2y6z) is a number divisible by 9 , then what os the least value of x+ y+z ?
Given:
Number 1X2Y6Z is divisible by 9.
To find:
The least value of X+Y+Z = ?
Solution:
First of all, let us learn the divisibility rule of 9.
A given number will be divisible by 9 if and only if the sum of digits of the given number is also divisible by 9.
For example:
Let us consider a number 923463.
The sum of digits = 9 + 2 + 3 + 4 + 6 + 3 = 27
27 is divisible by 9 so the number 923463 will also be divisible by 9.
Let us consider another example 8972.
Sum of digits = 26
26 is not divisible by 9 so the number 8972 will also be not divisible by 9.
Now, we are given the number 1X2Y6Z.
Sum of digits = 1 + X + 2 + Y + 6 + Z = 9 + X+Y+Z
The number 1X2Y6Z will be divisible by if 9+X+Y+Z is divisible by 9.
The least value of X+Y+Z can be zero, so the sum of digits = 9 + 0 = 9
which will make the number 1X2Y6Z divisible by 9.
So, the answer is:
Least value of X+Y+Z = 0 so that the number 1X2Y6Z is divisible by 9.
9514 1404 393
Answer:
0
Step-by-step explanation:
For a number to be divisible by 9, the sum of the digits must be divisible by 9. The given digits total 9, so x+y+z must be a multiple of 9. The least possible multiple of 9 is 0.
The least value of x+y+z is 0.
_____
102060/9 = 11340
The circumference of a circular field is 182.12 yards. What is the radius of the field
Answer:
Step-by-step explanation:
circumference=2πr
2 π r=184.12
π r=92.06
r=92.06/π≈29.30 yards
Sonny has $75 to spend the night the new Nintendo switch game that he wants to buy requires $93 his parents had they will lend him the money if he can figure out how much he needs which integer below represents how much more money does he need to borrow
-18
+168
+18
+75
Answer:
he needs 18 more dollars from his parents
Step-by-step explanation:
93-75=18 therefore he is missing 18 dollars
11.
Given that sin θ= √3 / 2, we want to find the value of cos θ.
First, find the value of θ.
See attachment for reply and answer.
Sophia has already scored 54 points, and she scores 23 more points with every coin she collects. After collecting a total of 2 coins, how many points will sophia have scored in all?
Answer:
100 points
Step-by-step explanation:
As it is mentioned that she has scored 54 points already and each coin has 23 points.
54+23+23 =100
SORRY IF WRONG
Thisssssssssssssssssssss one
Lines L and M are parallel find : m<2
Answer:
38 I believe let me know if I'm right
Step-by-step explanation:
...
Find the measure of the central angle of the circle if the Area of the sector is 120 square cm. and the radius is 6 cm.
a . ) 135
b . ) 120
c . ) 105
d . ) 85
explanations would be super
appreciated too
Which of the following is the equation of a line that has a slope of -2 and passes through the
point (1,6)?
y=x+6
y=-2x+8
y=-2x+4
y=1/2x+4
Answer:
ehhehrjrh4h4hehejejru4u4u
omg I do not understand this
Answer:
missing length is 8
Step-by-step explanation:
17^2 - 15^2 = 64
square root of 64 is 8
Answer:
8 inches
Step-by-step explanation:
Use the Pythagorean Theorem:
a²+b²=c²
15²+b²=17²
225+b²=289
b²=64
b=8
Therefore, the missing side is 8 inches long.
930-7.94*101+7.94
With Steps
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{930-7.94\times101+7.94}[/tex]
[tex]\mathsf{-7.94\times101 = \bf -801.94}[/tex]
[tex]\mathsf{= 930-801.94+7.94}[/tex]
[tex]\mathsf{930 - 801.94= \bf 128.06}[/tex]
[tex]\mathsf{= 128.06+7.94}[/tex]
[tex]\mathsf{= \bf 136}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf 136}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Please help me,.........
Answer
19?
Step-by-step explanation:
James has a board that is 3/4 foot long he wants to cut the board into pieces that are each 1/8 foot long long division
Answer:
6 pieces can be cut out of the board
Step-by-step explanation:
The complete question is
James has a board that is 3/4 foot long. He wants to cut the board into pieces that are each 1/8 foot long. How many pieces can James cut from the board?
Solution
Given,
The total length of the board is equal to [tex]\frac{3}{4}[/tex] feet
Total number of pieces to made = X
Size of each piece that is cut from the board is [tex]\frac{1}{8}[/tex] feet long
Total number of pieces that can be cut from the board is equal to total size of board divided by size of each sub part
[tex]X = \frac{\frac{3}{4} }{\frac{1}{8} } \\X = \frac{3}{4} * \frac{8}{1} \\X = 3 * 2 \\X = 6[/tex]
Hence, 6 pieces can be cut out of the board
How do you solve:
g(x) = x - 2
( I think the answer is 2 but how?!)
Answer:
x-2 =0
x=2
Step-by-step explanation:
we take -2 to the anther side it becomes 2
Answer:
-2
Step-by-step explanation:
A function is a rule for working out the values y for the given values x
For example, h = 3x and y = x^2 are functions. The notation g(x) is read as g of x. g is the function. g(x) = 3x means the function of x is 3x
So, when solving to find the value of x, you must substitute x for any given value.
For example, f(x) = 10/x. Work out f(5), you must substitute the 5 into the denominatior of the fraction 10/x . This becomes 10/5, which equals to 2.
But for your question, to find the value of x, substitute x with 0
You end up with -2
Hope this helps
BtW. the above statements are just notes. i thought they might help.
HELP PLEASE!!!!
what is the midpoint of (-5,-5) and (-1, -1)
Answer:
(-3,-3)
Step-by-step explanation:
pls helppp! tysmmmm!!
PLEASE PLEASE PLEASE TELL ME HELP HELP
Answer:
78%
Step-by-step explanation:
Ok to solve this we can write this as
80 = [tex]\frac{73+82+85+83+x}{5}[/tex]
We put the equation like this because were finding out how much he needs to get on his 5th test x in order to get a 80%
Your grade is the average of all of your scores hence the divided by 5
We next multiply both sides of the equation by 5 to get
400 = 72+82+85+83+x
400= 322+ x
78 = x
He must get a 78% minimum on his next test to get 80%
Hope that helps!
This quote came from _________. "He brought the cup to his lips and drank off the poison"
Answer:
Socrates
Step-by-step explanation:
6(x+4)+1= What is the answer to this great math problem
Answer:
6x+25
Step-by-step explanation:
Answer:
The simplified equation is 6x+25
Step-by-step explanation:
First, you open parentheses or in other words, use distributive property: 6*x+6*4+1. If you simplify that, you get 6x+24+1 which is basically 6x+25. So 6x+25 is your final answer.
split 50 into the ratio 9:1 what is the answer
Answer:
46
Step-by-step explanation:
The numbers 45 and 5, in the ratio of 9:1, when added together, sum up to 50.
To split the number 50 into a specific ratio, 9:1. This means we need to divide 50 into two parts, where one part is nine times larger than the other part.
To split 50 into the ratio 9:1, we need to divide the number 50 into two parts, let's call them "x" and "y." The ratio 9:1 tells us that one part is nine times larger than the other. So, we can express this relationship mathematically as:
x = 9y
Now, we know that the sum of the two parts, x and y, should add up to 50:
x + y = 50
Since we have an expression for "x" in terms of "y," we can substitute it into the second equation:
9y + y = 50
Now, let's combine the y terms:
10y = 50
Next, we isolate "y" by dividing both sides of the equation by 10:
y = 50 / 10
y = 5
Now that we've found the value of "y," we can use it to find "x" using the first equation:
x = 9 * 5
x = 45
So, the two parts are x = 45 and y = 5. We can verify that the ratio is indeed 9:1:
x / y = 45 / 5 = 9
And the sum of the two parts is:
45 + 5 = 50
The numbers 45 and 5, in the ratio of 9:1, when added together, sum up to 50.
In summary, to divide 50 into the ratio 9:1, we found that one part (x) is 45, and the other part (y) is 5. This satisfies the condition that one part is nine times larger than the other, and their sum is 50.
To know more about Ratio here
https://brainly.com/question/70116
#SPJ2
Item 16 The solids are similar. Find the surface area S of the red solid. Round your answer to the nearest tenth.
reertttAnswer:
treryeryutruytruw
Step-by-step explanation:
tryutrytry
Need help with this question
2 + (4h- 1) = 13h
Need All Steps Plz
Answer and Step-by-step explanation:
For this equation, we are solving for h.
We are given the equation:
2 + 4h - 1 = 13h
First, we need to Simplify the equation.
2 - 1 + 4h = 13h
1 + 4h = 13h
Now, we need to Subtract 4h from both sides of the equation.
1 + 4h - 4h = 13h - 4h
1 = 9h
Finally, we Divide both sides by 9 to get h.
[tex]\frac{1}{9} = h[/tex]
h is equal to [tex]\frac{1}{9}[/tex].
To check your answer, we plug [tex]\frac{1}{9}[/tex] back into the given equation.
[tex]2 + 4(\frac{1}{9} ) - 1 = 13(\frac{1}{9} )\\\\\\\\2 + \frac{4}{9} -1 = \frac{13}{9} \\\\\\1 = \frac{9}{9} \\\\1 = 1[/tex]
I hope this helps!
#teamtrees #PAW (Plant And Water)
Need help with exponential functions for a test!!!!!
The growth of a certain organism can be modeled by C(t)=10(1.029)^24t, where C(t) is the total number of cells after t hours. Which function is approximately equivalent to C(t)?
1. C(t) =240(0.083)^24t
2. C(t)=10(.083)^t
3. C(t)=10(1.986)^t
4. C(t)= 240(1.986)^t/24
Given:
The function is:
[tex]C(t)=10(1.029)^{24t}[/tex]
Where, C(t) is the total number of cells after t hours.
To find:
The function that is approximately equivalent to C(t).
Solution:
We have,
[tex]C(t)=10(1.029)^{24t}[/tex]
It can be rewritten as:
[tex]C(t)=10(1.029^{24})^{t}[/tex] [tex][\because (a^m)^n=a^{mn}][/tex]
[tex]C(t)\approx 10(1.986)^{t}[/tex] [tex][\because 1.029^{24}\approx 1.986][/tex]
The function [tex]C(t)=10(1.986)^{t}[/tex] is approximately equivalent to C(t).
Therefore, the correct option is 3.
Answer:
c
Step-by-step explanation:
HELP ASAP!!! PLEASE!!! look at the screenshot (15 pts)
Answer:
should be A sorry if I'm wrong
What is the value of x in the figure shown
URGENT PLS
Answer:
x is 19
Hope it helps!!!
Step-by-step explanation:
The range of a data set is 14. If the smallest number in the set is 24.
What is the largest number?
−2.78 written as a mixed number?
Answer:
-2 39/50
Step-by-step explanation:
Have a good day
-2 78/100 or -2 39/50