Answer:
15
Step-by-step explanation:
First you would plug in the 4 and 1/2 in the x and y's places, making the expression (4 - 2 (1/2))*(4 + 2 (1/2). Then you solve (below).
(4 - 2 (1/2))*(4 + 2 (1/2)
(4 - 1)*(4 + 1)
(3)*(5)
15
Hope this helped! If you have any questions, feel free to message me :)
find the value of x
The answer is 40.
I need to show my work
Answer:
(2x+7)° + (5x+4)° + 69° = 360°
=> 2x + 7 + 5x + 4 + 69 = 360
=> 7x + 80 = 360
=> 7x = 360 – 80
=> x = 280/7
=> x = 40
Answer:
x=40
Step-by-step explanation:
(2x+7)*+(5x+4)*+69*=360* (360* because its a circle)
7x+80=360 (combine like terms)
- 80 -80 (minus 80 both sides)
7x=280 (divide 7 both sides)
x=40
simplify:
3 (2x + 6) + 5x
A scuba diver descended to an elevation of 250 feet, examined some coral, and then ascended 14 feet to observe a school of clownfish. At what elevation was the school of clownfish
Answer:
236
Step-by-step explanation:
Answer:
who ever gave you that needs help
Step-by-step explanation:
PLEASE HELP ME
I really really really need help
Answer:
c
Step-by-step explanation:
Write the equation of the line that passes through the points (4, -3) and (3, 2). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
Use the slope equation to find the slope of the 2 points. Then substitute the values given and the slope into the point slope equation.
Step-by-step explanation:
Point slope equation: y − y1 = m(x − x1)
Slope: y2-y1/x2-x1
Please help I’m in a hurry
Answer:
c
Step-by-step explanation:
Please help me, I am, tired.
Show all work to solve 3x^2 − 5x − 2 = 0.
If you answer, please tell me the reason for your steps. I've fallen behind in Algebra and need visuals to finally understand.
Answer:
(2,0) and (-1/3,0)
x = 2
x = -1/3
Step-by-step explanation:
Hi there!
You'll notice that this equation is a quadratic. When graphed, this equation looks like a parabola that crosses the x-axis at two points, which can be written as ordered pairs with an x value and a y value.
We know that both of these points will have a y value of 0, but we don't know what the x values of the points are—these are what we want to find.
(Check out the graphing program Desmos—type in your equation and it will graph it out for you.)
Notice that your equation follows this structure:
[tex]ax^2+bx+c=0[/tex]
In our case,
[tex]a=3\\b=-5\\c=-2[/tex]
We can plug our values of a, b, and c into the quadratic equation to find the two x values.
I've attached a picture of my work. At the top is the quadratic equation. I substituted our values in and solved.
You'll notice that the answer I ended up with has a ± symbol. We have to simplify this down two different ways to get our two answers: once using the plus sign, once using the minus sign. This will give us two different values for x.
We'll start with the plus sign:
[tex]\frac{5+7}{6} \\=2[/tex]
So: one of our x values is 2.
Now the minus:
[tex]\frac{5-7}{6} \\=-\frac{1}{3}[/tex]
Our other x value is -1/3.
You can check to make sure these answers work by plugging them back into the original equation for x. If they work, the left side of the equation should boil down to 0.
Let me know if you have any other questions! Best of luck with getting caught up in Algebra!
Please help me!!!!!!!!!!!!!!!
Answer:
7) (f+g)(x) = 4^x +5x -5
8) (f-g)(x) = 4^x +x +5
Step-by-step explanation:
7) add the two expressions.
(f+g)(x) = f(x) +g(x) = (4^x +3x) +(2x -5)
(f+g)(x) = 4^x +5x -5
__
8) subtract g(x) from f(x).
(f-g)(x) = f(x) -g(x) = (4^x +3x) -(2x -5) = 4^x +3x -2x +5
(f-g)(x) = 4^x +x +5
Describe the nature of the roots for this equation.
x² – 2x+1=0
O A. Two complex roots
O B. Two real, irrational roots
O C. Two real, rational roots
O D. One real, double root
Answer:
its d ok make me brialyisyt plssssss
Study the map of religions in Europe.
A map of Religion in Europe. Christianity is marked in shades of purple. Islam is marked in shades of green. Italy is 75 to 90 percent Christian. Spain is over 90 percent Christian. Germany has no data. The United Kingdom is 50 to 75 percent Christian.
In which country does more than 90 percent of the population practice Christianity?
Italy
Spain
Germany
United Kingdom
Answer:
b: spain
Step-by-step explanation:
ot it right on edg 2020
Answer:
Yea its B- Spain
Step-by-step explanation:
Which expression is equivalent to 6423?
Solve 4x – 2(x + 1) = 3x + 10.
Answer:
x=-12
Step-by-step explanation:
4x−2(x+1)=3x+10
Step 1: Simplify both sides of the equation.
4x−2(x+1)=3x+10
4x+(−2)(x)+(−2)(1)=3x+10(Distribute)
4x+−2x+−2=3x+10
(4x+−2x)+(−2)=3x+10(Combine Like Terms)
2x+−2=3x+10
2x−2=3x+10
Step 2: Subtract 3x from both sides.
2x−2−3x=3x+10−3x
−x−2=10
Step 3: Add 2 to both sides.
−x−2+2=10+2
−x=12
Step 4: Divide both sides by -1.
−x/−1=12/−1
x=−12
Answer:
x=−12
Answer:
x=-12
Step-by-step explanation:
4x-2x-2=3x+10
2x-2=3x+10
2x-2+2=3x+10+2
2x=3x+12
2x-3x=3x+12-3x
-x=12
-x/-1 = 12/-1
x= -12
A car is traveling down a highway at a constant speed, described by the equation d=75t, where d represents the distance, in miles, that the car travels at this speed in t hours. Use this information to answer all the questions below.
A. What does 75 tell us about this situation?
B. How many miles does the car travel in 2.5 hours?
C. How long does it take the car to travel 50 miles at this speed?
Answer:
A 75 represents speed.
B 187.5 miles
C about 40 mins
Step-by-step explanation:
A distance is calculated by multiplying speed by time.
B 75 * 2.5
C 50/75 = 0.67 0.67 of an hour is about 40 mins.
plz help ill give brainliest
Answer:
what do you need help with?
if f(x)=3x-1,find f(3)
Answer:
f(3) = 8
Step-by-step explanation:
f(x) = 3x - 1
f(3) = 3(3) - 1
f(3) = 9 - 1
f(3) = 8
explain how you can use the answer to problem 2 to verify the unit rate is 40
Answer:
6ab+8a factor out 2 from the expression. Your answer will be (2ax(3b+4). I hope this helps you.
Step-by-step explanation:<!>BRAINLIEST APPERICATED<!>
According to most medical doctors, a person’s normal body temperature should remain within 0.5 degrees Fahrenheit of 98.6°F. Which equation below can be used to determine the lowest and the highest body temperature that would be considered normal?
A. |t−0.5|=98.6
B. |t−98.6|=0.5
C. |t+0.5|=98.6
D. |t+98.6|=−0.5
9514 1404 393
Answer:
B. |t−98.6|=0.5
Step-by-step explanation:
You want the equation that says the positive difference from 98.6 is equal to 0.5. That equation is ...
|t−98.6| = 0.5
Susan can read 72 words in One-third of a minute. Which statement is correct? She can read 24 words per minute, because 72 divided by One-third is equal to 24. She can read 24 words per minute, because 72 times One-third is equal to 24. She can read 216 words per minute, because 72 divided by One-third is equal to 216. She can read 216 words per minute, because 72 times One-third is equal to 216.
Answer:
The answer is
"She can read 216 words per minute because 72 divided by One-third is equal to 216."
Step-by-step explanation:
Given the statement
Susan can read 72 words in One-third of a minute ....pause
Whats is one-third of a minute
it is expressed as 1/3*60=20sec
so Susan can read 72 words in 20 second
this means that in a minute she can read
72+72+72 words= 216 word since 20sec*3 is 1 minute
alternatively
[tex]=\frac{72}{\frac{1}{3} }[/tex]
we then multiply 73 with the inverse of the denominator
=[tex]72*\frac{3}{1}[/tex]
=216 words
Answer:
is c then
Step-by-step explanation:
Find the slope of the line passing through the points (-8, 2) and (-8, - 7).
slope:
Sarah has 36.8 oz of water. She wants to pour 0.4 oz into
different cups. How many cups can she fill?
Answer:
92 cups
Step-by-step explanation:
36.8/.4 or 368/4 is 92
92 cups
Answer:
92 oz
Step-by-step explanation:
36.8 ÷ 0.4 = 92 ozI hope this helps!
Developing spiritual wellness includes:
A.
Finding an inner peace
B.
Participating in self-nurturing activities
C.
Respecting other people
D.
All of the above
Answer:
The answer is D all of the above
Step-by-step explanation:
Being spiritually well means to be clean and pure thus meaning having inner peace, participating in self nurturing activities and being respectful of others.
12 out of 100 kids make it to the Houston Rodeo. How many kids will make it
out 750?
Answer:
90/750 or 8.33 round and it would be 9 kids or 45/375
Step-by-step explanation:
12/100 to ?/750
100 to 750 would be 7.5 *100
so 12 *7.5 = 90
90/750= 8.33
or 45/375
Ratio of 12:100
12 x 7 and 100 x 7
84:700
12:100 / 2 = 6:50
90:750
Out of 750 kids, 90 make it
I'm pretty sure anyway, hope this helps!
HELP ASAP PLZ !!!!!!
Solve this problem.
If it takes 4 hours to travel 240 miles in a car, what is the average speed of the car?
Answer:
48 mile/hours ????
Step-by-step explanation:
because you divided 240 by 4
A high school choir had a car wash to raise money. The number of trucks washed was 2 fewer than
half the total number of cars and SUVs washed. They washed twice as many cars as trucks. They
washed a total of 28 trucks and cars and SUVs.
Let T = the number of trucks, C = the number of cars, and S = the number of SUVs washed. Which
ordered triple, (T, C, S) represents the solution to the system below? Verify your answer fully in the
box provided. (5 pts.)
1 2( ) 2
2
28
T CS
C T
TCS
+= +
=
++=
A. (4, 8, 16) C. (8, 16, 4)
B. (4, 8, 12) D. (12, 6, 8)
Answer: C. (8, 16, 4)
Step-by-step explanation:
Given the following:
Let:
Trucks = T ; Cars = C ; SUVs = S
T =0.5(C + S) - 2 - - - (1)
C = 2T - - - (2)
T + C + S = 28 - - - (3)
T = 0.5(2T + S) - 2
T = T + 0.5S - 2
0 = 0.5S - 2
0.5S = 2
S = 2/0.5
S = 4
From T + C + S = 28
C = 2 T ; S = 4
T + 2T + 4 = 28
3T = 28 - 4
3T = 24
T = 24/3
T = 8
From T + C + S = 28
8 + C + 4 = 28
12 + C = 28
C = 28 - 12
C = 16
Hence, (T, C, S) = (8, 16, 4)
A total of 4500 tickets to a concert were sold and the price for each ticket was either $59 or $85. If the
amount collected was $291, 500, how many tickets were sold at each price?
O (35, 10)
O (3500, 1000)
O (1000, 2200)
O (3000, 1500)
Answer:
3500 tickets were sold at $59
1000 tickets were sold at $85
(3500, 1000)
Step-by-step explanation:
x + y = 4500
59x + 85y = 291500
x + y = 4500
x = 4500 - y
59(4500 - y) + 85y = 291500
265500 - 59y + 85y = 291500
265500 + 26y = 291500
26y = 26000
y = 1000
x + y = 4500
x + 1000 = 4500
x = 3500
Check:
x + y = 4500
3500 + 1000 = 4500
4500 = 4500
59x + 85y = 291500
59(3500) + 85(1000) = 291500
206500 + 85000 = 291500
291500 = 291500
I need help ASAP PLEASE HELP ME AND FAST
Answer:
Scale factor: 1/3 X=4
Scale factor: 5 X=20
Step by step explanation:
give brainliest please lol
Which of these mappings is a function?? Plzzzz help <3333
Answer:
X
Step-by-step explanation:
Each input should have one output.
Two angles are supplementary. If one angle measures twice the other, and the number of degrees in the smaller angle.
Answer:
60 Degrees
Step-by-step explanation:
Supplementary means it equals 180 together, so you divide it by 3 because the one is twice as big and you take the smaller answer
[tex]\frac{180}{3} =60[/tex]
Small and large angle are 60° and 120°.
Given that;
Angles are supplementary
Computation:
Assume;
Smaller angle = a
So,
Large angle = 2a
So,
In supplementary
a + b = 180
a + 2a = 180
3a = 180
a = 60
Smaller angle = 60°
Large angle = 2(60)
Large angle = 180°
Learn more:
https://brainly.com/question/12677598?referrer=searchResults
A number minus 8 is the same as a number
n divided by 2.
A number minus 8 is the same as a number divided by 2.
To Find :We have to find that number[tex].[/tex]
Solution :Let the number be x.
From the given question,
1. Number minus 8
x - 8 ..... (I)2. Number divided by 2
x/2 ..... (II)ATQ : (I) = (II)
⭆ x - 8 = x/2
⭆ 2(x -8) = x
⭆ 2x - 16 = x
⭆ 2x - x = 16
⭆ x = 16
#CarryOnLearningWhich of these relations is a function?
Why is this? This is the only relation that passes the vertical line test.
The other choices have situations where we can draw a single straight vertical line through more than one point on the blue curve. That means the graph fails the vertical line test and we do not have a function.
For a function to be possible, any x input must lead to exactly one y output.
Answer:
2nd one
Step-by-step explanation: