Answer:
X=11+ √157/12
x= 11-√157/12
Step-by-step explanation:
2x+3=12x^2 -20x
Move all terms to one side.
2x+3−12x2+20x=02x+3−12x ^2+20x=0
Simplify
22x+3−12x^2=0
Use the Quadratic Formula.
a= -12
b= 22
c= 3
Power usage is measured in kilowatt-hours, kWh. After 7 a.m., the power usage on a college campus increases at a rate of 21% per hour. Prior to 7 a.m., 15,040 kWh have been used. The university has a daily goal to keep their power usage less than or equal to 100,000 kWh.
Which of the following inequalities can be used to determine the number of hours, t, after 7 a.m. when the power usage on campus will be less than or equal to 100,000?A.
15,040(0.79)t ≤ 100,000
B.
15,040(1.79)t ≤ 100,000
C.
15,040(1.021)t ≤ 100,000
D.
15,040(1.21)t ≤ 100,000
Answer:
D. 15,040(1.21)t ≤ 100,000
Step-by-step explanation:
The 15,040 is the prior electricity, and it increases by .21 per hour, and you don't want 100,000
To make an equation, use the simple interest formula (same concept)
Total = Amount(1 + rate) time
fill it out
100,000 >= 15,040(1.21)t
This equation is the same as D so D is the answer
Find the area of the figure
Answer:
40
Step-by-step explanation:
because 8 times 5 is 40
Answer:
49.82 cm²
Step-by-step explanation:
Answer attached..
Hope it helps ^_^
A number from 1-20 is chosen at
random. What is the probability
that it is not prime number.
Answer:
There are 12 composite (and 8 primes) in the first twenty whole numbers. So the probability of randomly choosing a non-prime is 12/20 or 60%.
solve for x and y simultaneously:
(3x-9y)²+(x+15)²=0
Answer:
[tex]x = \frac{3(3iy+9y-5+15i)}{10}[/tex]
[tex]y= -\frac{xi}{9} - \frac{5i}{3} + \frac{x}{3}[/tex]
Practice working with interior angles of a triangle. Manipulate the triangle so angle A measures 14° and angle B measures 62°. Which statement is true about angle C? The angle is acute. The angle does not make a straight line with the other two. The angle is obtuse. The angle is a right angle.
Answer:
Its C
Step-by-step explanation:
Because i tried B and it didnt work
How many flowers, spaced every 4 in., are needed to surround a circular garden with a 200-ft radius? Use 3.14 for π.
Find the circumference of the circle:
Circumference = 2 x r x pi
Circumference = 2 x 200 x 3.14
Circumference = 1,256 feet.
4 inches/ 12 inches per foot = 0.333 ft.
Divide the circumference by the spacing:
1255/0.333 = 3,768
You will need 3,768 flowers
Linda is making a quilt for her granddaughter. She bought 3 1/4 yards of fabric. Her total cost was $10. What was the cost per yard?
(Complex fraction)
Answer:
13 /40
Step-by-step explanation:
Divide
13 over 4
13 /4 ÷ 10 = 13 over ( 4 × 10 )
13 over 4 × 10
= 13 over 40
13 /40
Belinda has 7 pieces of wood. Each piece of wood measures 3/4 yards. How many yards of wood does she have all together?
Answer:
each wood is 3/4 and there is 7wood so it's 7*3/4
Step-by-step explanation:
7×3/4
=21/4
simplify 2(-3x -6) I want to simplify it but I'm not sure how
Answer:
-6x-12
Step-by-step explanation:
2(-3x-6)
Multiply: 2(-3x)+2(-6)
so answer is -6x-12
A . 48 cm sq
B. 64 cm sq
C. 80 cm sq
D. 60 cm sq
PLEASE HELP!! WILL GIVE BRAINLIST!!!!! I NEED THIS ASAP
At Super Grocery, strawberries cost $3.00 for 2 pounds. At Value Market, strawberries cost $4.00 for 3 pounds. Which store has a better value for strawberries?
Answer: Value Market has the better value for strawberries
Step-by-step explanation: Value Market sells them for 1.3 for 1 pound.
Answer: Uhhhhh
Step-by-step explanation:
Value market has a better value
helphelphelphelphelphelphelphelphelphelphelphelp
Answer:
um... the.... second... one...? and nice Jake picture
Step-by-step explanation:
Find M please in this Geometry question.
Answer:
m = 8
Step-by-step explanation:
As we can see we have two similar triangles
These are triangles FDH and GEF
mathematically, when two triangles are similar, the ratio of their corresponding sides are equal;
Thus;
DH/DF = EG/EF
12/15 = m/10
15 * m = 12 * 10
15 m = 120
m = 120/15
m = 8
If x = -3, then x^2-7x + 10 equals
x²-7x+10 when x=-3
( - 3)² - 7( - 3) + 10 = 9 + 21 + 10 = 30 + 10 = 40
Gary took a trip to bikini bottom. He recorded his progress along the way in the following table
Where is the table?
Simplify the expression
9 (a - 4)
Write an inequality statement.
Lorenzo can work no
more than 25 hours
each week.
x = hours worked
x ≤ 25
boom. done.
calculate the height/base
So basically, You know you need a missing Base or height and you have the Area and The height or the base so in this case
A=Area
B=Base
H=Height
So, A divided by B-H gets B or H.
1= 12 height
2= 5 base
3= 8 height
1/3(6z+7.2)=0.5(8z+2)-0.4
A z=0.8
B z=0.9
C z=2.8
D z=3.6
please help
Answer:
B z = 0.9
Step-by-step explanation:
1/3(6z + 7.2) = 0.5(8z + 2) - 0.4
Multiply both sides by 6.
12z + 14.4 = 24z + 6 - 2.4
-12z = -10.8
z = 0.9
8/9÷3= 7/8 1/5 8/27 2/3
Which of these contexts describes a situation that is unlikely?
O Rolling a 1 on a standard six-sided die, numbered from 1 to 6.
O Spinning a spinner divided into four equal-sized sections colored red/green/yellow/blue and landing on red or yellow or green or blue.
O Winning a raffle that sold a total of 100 tickets if you bought 9o tickets.
OReaching into a bag full of 10 strawberry chews and 10 cherry chews without looking and pulling out a strawberry or a cherry chew.
Answer:
The first one
Step-by-step explanation:
This is because all the other ones there is a likely chance that you will get them. While the first one it is less of a chance that you will role a die and land on a one. It is a 1 out of 6 chance
The situation which is unlikely is rolling a 1 on a standard six-sided die, numbered from 1 to 6
What is Probability?The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible
Probability = number of desirable outcomes / total number of possible outcomes
The value of probability lies between 0 and 1
Given data ,
a)
Rolling a 1 on a standard six-sided die, numbered from 1 to 6
Probability P ( A ) = 1/6
P ( A ) = 0.1667
b)
Spinning a spinner divided into four equal-sized sections colored red/green/yellow/blue and landing on red or yellow or green or blue
Probability P ( A ) = 1
P ( A ) = 1
c)
Winning a raffle that sold a total of 100 tickets if you bought 90 tickets.
Probability P ( A ) = 90/100
P ( A ) = 0.9
d)
Reaching into a bag full of 10 strawberry chews and 10 cherry chews without looking and pulling out a strawberry or a cherry chew.
Probability P ( A ) = 10/20
P ( A ) = 0.5
Hence , the unlikely event is Rolling a 1 on a standard six-sided die, numbered from 1 to 6
To learn more about probability click :
https://brainly.com/question/17089724
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Find the value of k.
In triangle ABC, the midpoints of the sides AB, BC and AC are P(2, 3), Q (3,
5) and R(-4, 4) respectively. Find the coordinates of A, B and C.
Answer:
Plzzzz answer fast......
Which measurement is the best estimate of the area of the field in square feet? A:12717 B:8100 C:27176 D:19074
Answer: You forgot to include a photo
Step-by-step explanation:
What is the negative x-intercept of the quadratic function represented by
y = (2x + 8) (3.2 – 1)?
Solve for x (Geometry)
Answer:
x = 18[tex]\sqrt{2}[/tex]
Step-by-step explanation:
The middle line divides the 90° angle in half meaning your triangles are isosceles triangles. Recall that an isosceles triangle has sides that are the same length.
Using pythagorean theorem a² + b² = c², you can solve for x
18² + 18² = x²
x² = 648
x = 18[tex]\sqrt{2}[/tex]
There are 60 calico cats at the animal shelter if this represents 30% of the cats in the shelter how many total cats are there
Answer: 200 cats in total
Step-by-step explanation:
60 calico cats represents 30% of the total cat population in the shelter.
That means that if we find 30% of the total number of cats, the number we will get is 60.
Assuming the total is x, representing this in equation form makes it:
x * 30% = 60
x = 60 / 30%
x = 200 cats in total
Raina has 3 buckets.
She pours a total of 30 liters of water into these buckets.
If every bucket gets the same amount, what is the volume of water in each bucket?
Answer:
30/3=10
so every bucket gets 10 liters
Step-by-step explanation:
Problem: Jessica ordered a pizza. One-half of the pizza had pepperoni only, one-sixth of the pizza had mushrooms, and the rest of the pizza was cheese only. What fraction of the pizza was cheese only?
Answer:
1/3 of the pizza
Step-by-step explanation:
Number of pizza ordered = 1
pepperoni only part = One-half of the pizza = 1/2 of the pizza
Mushrooms part = one-sixth of the pizza = 1/6 of the pizza
Cheese only part = x
Total pizza = pepperoni only part + Mushrooms part + Cheese only part
1 = 1/2 + 1/6 + x
1 = (3+1) /6 + x
1 = 4/6 + x
1 - 4/6 = x
x = 1 - 2/3
= (3-2) / 3
x = 1/3 of the pizza
Cheese only part = x = 1/3 of the pizza
Find the length of the third side. If necessary, write in simplest radical form.
(screenshot provided)
no links please ;')
Answer:
the length of the third side (the hypotenuse) is 7
Step-by-step explanation:
Solve this by using the Pythagorean Theorem:
(2√10)² + 3² = (hypotenuse)²
Then (hypotenuse) = √(40 + 9) = √49 = 7
Answer:
7
Step-by-step explanation:
2 root 10 ^2 is 40
3 squared is 9
root of 49