Answer:
Linear Equation: A linear equation is an algebraic equation. · 2. Polynomial Equation: · 3. Quadratic Equation: · 4. Trigonometric equation: · 5. Radical Equation:
Step-by-step explanation:
Given f(x) = 3x + 9, find x when f(x) = 21.
A)
3
B)
4
C)
7
D)
10
Answer:
B)
Step-by-step explanation:
3(4) + 9 = 21
Which decimal and percent represents 7/8
Answer:
decimal - 0.875
percent - 87.50%
Step-by-step explanation:
A train traveled from one city to another city in 4 hours at a speed of 70 mph.
The retum trip was made in 5 hours. Find the speed for the return trip.
Answer:
56miles/hr
Step-by-step explanation:
Given parameters:
Time taken for the to travel = 4hrs
Speed of the train = 70mph
From this data, let us find the distance of the trip;
Distance =Speed x time
Therefore, insert the parameters;
Distance = 70mph x 4hr = 280miles
Now;
Return trip took, 5hrs,
Speed = ?
Speed = [tex]\frac{distance}{time}[/tex]
Insert the parameters and solve;
Speed = [tex]\frac{280}{5}[/tex] = 56miles/hr
The quotient of m and 7.
identiy why trade improved during the middleages.
this is the question.
Answer:
intermarriage
Step-by-step explanation:
people from different part intermarried
Answer:
dont know
Step-by-step explanation:
Round 985, 932 to the nearest thousand.
Answer:
900
Step-by-step explanation:
What is another way to summarize the outcome of this proof?
1
Given: AB II CD
A
B
4
6
5
Prove: 23 a 26
с
7
8
D
Statement
Reason
1. AB||CD
1. Given
2.23 27
2. Corresponding angles theorem
3. Vertical angles are congruent
3. 27 - 26
4. m23 = m27
m27 = m_6
5. m23 = m26
4. Definition of congruence
5. Substitution
6.23 - 26
6. Definition of congruence
Vertical angles are congruent.
B. If two lines are parallel, then alternate interior angles are
congruent.
C. Corresponding angles theorem.
D. If two lines are parallel, then alternate exterior angles are
congruent.
Answer:
Option B: If two lines are parallel, then alternate interior angles are
congruent.
Step-by-step explanation:
Notice that angles 3 and 6 are INTERNAL relative to the parallel lines, that is located in between the parallel lines. They are also alternate angles. Therefore, the correct answer is:
"If two lines are parallel, then alternate interior angles are congruent."
how to find the sale price of an item that has been discounted 25%
Answer:
Multiply the normal price of the item by .25 and then subtract that from the normal price.
Step-by-step explanation
[tex]x -(x*.25)[/tex]
x is the item
Step-by-step explanation:
100%-25%= discounted price= 75%
You do the discounted price divided by 75 to find 1%
do that times 100 to find the pre-discounted price.
e.g
find the original price of a sweater when it was on sale of 25%. the sale price is £15.00.
£15.00 = 75%
15.00 divided by 75 = 1% =£0.20
£0.20 x 100 = pre-sale price = £20.00
The price of the sweater before the sale is £20.00.
You are welcome xx
Which is not a correct way to represent the relation "the second number is 1 less than three times the first number"?
y=1 - 3x
y= 3x + (-1)
y= -1 + 3x
y= 3x - 1
Answer:
3x-1
Step-by-step explanation:
Answer:
y = 3 x - 1
Step-by-step explanation:
A farmer with 5000 feet of fencing wants to enclose a rectangular field and then divide it into two plots by adding a fence in the middle parallel to one of the sides. Using the function A(x) , analytically find the WIDTH of the field that would maximize its area. (Round your answer to the nearest whole number)
Answer:
The required width of the field that would maximize the area is = 1250 feet
Step-by-step explanation:
Given that:
The total fencing length = 5000 ft
Let consider w to be the width and L to be the length.
Then; the perimeter of the rectangular field by assuming a parallel direction is:
P = 3L + 2w
⇒ 3L + 2w = 5000
3L = 5000 - 2w
[tex]L = \dfrac{5000}{3} - \dfrac{2w}{3}[/tex]
Recall that:
The area of the rectangle = L×w
[tex]A(w) = ( \dfrac{5000}{3}-\dfrac{2}{3} ) w[/tex]
[tex]A(w) = \dfrac{5000}{3}w-\dfrac{2}{3} w^2[/tex]
Taking the differentiation of both sides with respect to t; we have:
[tex]A' (w) = \dfrac{5000}{3} - \dfrac{2}{3} ( 2 w)[/tex]
[tex]A' (w) = \dfrac{5000}{3} - \dfrac{4w}{3}[/tex]
Then; we set A'(w) to be equal to zero;
So; [tex]\dfrac{5000}{3} - \dfrac{4w}{3}=0[/tex]
5000 = 4w
w = 5000/4
w = 1250
Thus; the required width of the field that would maximize the area is = 1250 feet
Also, the length [tex]L = \dfrac{5000}{3} - \dfrac{2w}{3}[/tex] can now be :
[tex]L = \dfrac{5000}{3} - \dfrac{2(1250)}{3}[/tex]
L = (5000 -2500)/3
L = 2500/3 feet
Suppose, the farmer divides the plot parallel to the width; Then 2500/3 feet = 833.33 feet and the length L = 1250 feet.
2)
Mike went to the doctor and was found to be 20 pounds overweight.
The doctor discovered that Mike ate an average of 2000 calories per
day. He said for Mike to lose weight and meet his goal, the maximum
amount of calories he could eat per day was 1750. How many calories
will Mike be cutting out each week (7 days)?
Answer:
1750 Calories
Step-by-step explanation:
2000-1750=250
250x7=1750
Craig took 20 minutes to swim 14 laps in the school swimming pool.
What is his unit rate per minute?
Answer:
0.7 lap per minute
Step-by-step explanation:
4(2x−9)=4 solve for x
Answer: x=5
Step-by-step explanation:
Distribute the 4 to the 2 and 9 and you will get (8x-36)=4.
Then you'd add the 36 to 4 to get 40.
Lastly you'd divide 8 and 40 to get 5. Hope this helps!!!
ILL GIVE BRAINLIEST!!!!!!!!!!!!
Answer:
6.30
Step-by-step explanation:
Prompt: A car is traveling down a highway at the constant speed, described by the equation “d=65t” , where “d” represents the distance, in miles, that the car travels at this speed in “t” hours.
Question 1:
1. What does 65 tell us in this situation?
a. The car travels 65 miles in 1 hour.
b. The constant of proportionality is 65 miles per hour.
c. The car traveled a total of 65 miles
d. The car is traveling 65 miles per hour.
—————————————————————
Question 2:
2. How many miles does the car travel in 1.5 hours?
The car travels □ miles in 1.5 hours.
—————————————————————
Question 3:
3. How long does it take the car to travel 26 miles at this speed?
“Type your response in the down below”
Please Help!
Answer:
1) d
2) 97.5 miles
3)I am unsure on
Step-by-step explanation:
1) d=65t means that it is moving 65 miles per that amount of time (in this case using mph)
2) you take your equation "d=65t" and fill in your time (1.5) 65(1.5)=97.5
3) I don't know but possibly 2.5 minutes? (65/25) but I'm not sure I'm sorry
PLS HELP
John was 3 5/8 feet tall when he was three years old. He is now 6 1/4 feet tall. How many feet did he grow in total?
Prediction:_________________________________________________
Expression: ______________________________
Simplify
turn the 5/8 into 2.5/4 then add 1/4. Now it is 3.5/4. Add 3 + 6 = 9 so you add the 3.5/4 and it turns into 9 3.5/4. Subtract 3 and you get your answer?
-Can I please have Brainliest
29 + 15x = -x - 3. Simplified
A train travels 20 feet in 1/5 second. At this same speed how many feet will it travel in three seconds
Answer:
It will travel 300ft. in three seconds
Step-by-step explanation:
Please help me!!!!! I need to turn this in!!!!
40% of what number is 50.8? Help.
Answer:
20.32
Have a beautiful day!
Answer:
127
Step-by-step explanation:
Julie sent 200 emails last month. This month she sent 40% less. How many
emails did she send this month?
Answer:
She sent 120 emails this month.
Step-by-step explanation:
Multiply 200 by .60 (60 percent) and it will give you 120.
I used 60 instead of 40 because the problem said 40 percent less, NOT 40 percent of 200.
A line passes through the point (8,4) and has a slope of -3/4 Write an equation in slope-intercept form for this line.
Step-by-step explanation:
Hey there!
Given;
The line passed through point (8,4) and made slope (-3/4).
Note: Use one-point formula.
[tex](y - y1) = m(x - x1)[/tex]
Put all values.
[tex](y - 4) = \frac{ - 3}{4} (x - 8)[/tex]
[tex]y - 4 = - \frac{3}{4} x - \frac{3}{4} \times - 8[/tex]
[tex]y - 4 = - \frac{3}{4} x + 6[/tex]
[tex]y = - \frac{3}{4} x + 6 + 4[/tex]
Therefore, the equation is: y = -3/4x +10.
Hope it helps...
Students in a sixth-grade class are raising money for an end-of-year camping trip. So far, they have raised $240. This is 2/5 (two-fifths) of the cost of the trip. How much does the trip cost?
Answer:$300
Step-by-step explanation:
120 is 1/5 of the raised money, therefore if you miltiple 120 by 5 you should get your answer.
Answer:
.
Step-by-step explanation:
7 X-4 = *
A) 28
B) 11
C) -11
D) -28
Answer:
7*-4=-28
Step-by-step explanation:
7*-4=-28
A snowboard shop charges $10, plus an additional #3 per hour to rent a snowboard. Write the equation for the line in slope-intercept form.
HURRY HELP PLS!!
Answer:
y = 3x + 10
Step-by-step explanation:
Answer:
im pretty sure it is (0,5) or (10,0)
Step-by-step explanation:
mark sets the dinner table every 2 days and dries the dishes every 3 days if he sets the table on day 2 and dries the dishes on day 3 on what day would mark first perform both chores on the same day
Answer:
On day 6 Mark will do both chores.
Step-by-step explanation:
You have to find the LCM (Least Common Multiple) of 2 and 3. The LCM is 6 so therefore it is day 6.
Simplify x^-5
please please I need it please please please please please please
Answer:
[tex]1/x^5[/tex]
Step-by-step explanation:
[tex]x^-^y = 1/x^y[/tex]
Answer:
1/x^5
Step-by-step explanation:
When you have a negative exponent, you have to put 1 over that power without the negative sign in the exponent. You put 1 over x^5
Answer: 1/x^5
You are given that angle YZW and asked ZYX are right angles. What additional piece of information allowed you to prove that triangle WYZ is congruent to triangle XZY?
Answer:
e
Step-by-step explanation:
Which best represents the greatest amount of change that took place from one day to the next day over the four-day period?
Answer:
A loss of 93.98 points. Hope this is helpful!
Step-by-step explanation:
Answer:
fat dickaling
Step-by-step explanation:
IM TIMED PLZ HELP Which values of a, b, and c correctly represent the answer in simplest form? a= 38, b= 14, c= 1 a= 1, b= 14, C = 38 a= 1, b= 7, C= 19 a= 19, b= 7, C= 1
Answer:
you're right, a=1 b=7 c=19
Step-by-step explanation:
