Answer:
D.) $40.50
Step-by-step explanation:
If he is having 72 guests over, then he'll need nine tables.
(72 guests divided by eight guests, [each table] equals the need for nine tables)
If each table is $4.50 and he needs nine tables then we shall multiply nine by 4.50
9 x 4.50 = 40.50
$40.50
Hope this helped! Please mark brainliest!
Simplify: 14√3 + 7√3
A. 21√3
B. √27
C. √24
D. 21√6
Amina and sara have £240 between them. they share the money 3:5. How much does Amina recieve?
(2 marks)
Answer:
90
Step-by-step explanation:
add the ratio 3+5 to get 8
amina received 3/8 of 240
perform the calculation 3/8×240
240/8=30. , 30×3=90
\the picture is up there
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Hello!
TO find the root all you gotta do is 3x3 which gives you 9
Please Find 2/3 of 24.
Points for easy questions what is 12+5
Answer:
17
Step-by-step explanation:
12+5=17 ;-;
Answer:
17
Step-by-step explanation:
this is easy for f.ree points thanks
What is the value of the expression when a = 5 and b = 2?
Function or not? (I'm not sure plz help)
Not function because its a vertical line.
-12 + 36 thank you for helping me
Answer:
24
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
-24+36=-12.................
X^2-14x+ 58 = 0
A. (3+ 7i,3 - 7i)
B. (2+19i,2 - 19i)
c. (2+9i,2 - 9i)
D. (7+3i,7-3i)
9514 1404 393
Answer:
D. 7 +3i, 7 -3i
Step-by-step explanation:
When the leading coefficient of the quadratic is 1, as it is here, the sum of the roots is equal to the opposite of the coefficient of the x-term. So, we need the sum of roots to be -(-14) = 14.
In each case, the imaginary parts cancel when the roots are added. The real parts of the roots are the same, so the sum of roots is double the real part of one of the roots. In order for that to be 14, the real part of the root must be 7.
Only answer choice D matches this requirement.
__
Algebraic solution
x^2 -14x +58 = 0 . . . . given
(x -7)^2 = -9 . . . . . . . subtract 9 and write as a square
x = 7 ± 3i . . . . . . . . square root and add 7
______
Additional comment
When p and q are roots, (x-p) and (x-q) are factors. The expansion of the factored form is ...
(x -p)(x -q) = x^2 -(p+q)x +pq = 0
That is, the constant term is the product of the roots, and the linear (x) term coefficient is the opposite of the sum of the roots. This can help you check quickly if an offered choice of roots is applicable to the given equation. This is also the basis of the thinking used to factor the equation.
1. There are 150 apple and peach trees altogether on a farm. The number of peach tree is 30 more than the number of apple trees. How many apple trees are there? How many peach trees are there?
Answer:
There are 90 peach trees and 60 apple trees
Step-by-step explanation:
Which congruence theorem can be used to prove △ABC ≅ △DBC?
Answer:
SAS
Step-by-step explanation:
Hope this helps :)
I need a little help here ASAP!!!!! PLZZ!!!!!
Answer:
471.24
Step-by-step explanation:
Answer:
A= 471.24
Step-by-step explanation:
The formula for the surface area of a cylinder is
[tex]A=2\pi rh+2\pi r^2[/tex]
What we know is
Radius = 5 inHeight = 10 inUsing these numbers, we can know plug them into the formula.
[tex]A=2\pi (5)(10)+2\pi(5)^2[/tex]
Simplify
[tex]A= 100\pi + 50\pi[/tex]
[tex]A= 150\pi[/tex]
[tex]A= 471.24[/tex]
Evaluate the expression. C(12, 0)
Answer:
1
Step-by-step explanation:
I think C(12,0) means 12 choose 0. If yes, then the answer is 1. There is only 1 way to pick 0. Or, you can calculate it with the form:
C(12,0) = [tex]\frac{12!}{0!(12-0)!}[/tex] ⇒
[tex]\frac{12!}{1*12!}[/tex] = 1
plsss help question pic below
Answer:
All you have to do is add 11 four times and then add 18 four times. Then once you have added them up, you add those two numbers and that is how you get your answer.
Step-by-step explanation:
11+11+11+11= 44
18+18+18+18=72
44+72=116
116 is the answer
9. Jorge ran 15 miles in 3 1/2 hours. What was his rate in miles per hour?
Which of these intervals has an average rate of change that is less than 1/4
?Select all that apply.
Answer:
Interval [b,c] and interval [c,d]
Step-by-step explanation:
a(-5,0)
b(-1,2)
c(4,3)
d(11,4)
The average rate of change is the the total rise over the total run.
The Rise means the vertical increase and the Run means horizontal incease.
For interval [a,b]
rate of change is [tex]\dfrac{2-0}{-1-(-5)}=\dfrac{2}{4}=\dfrac{1}{2}[/tex]
For [b,c]
[tex]\frac{3-2}{4-(-1)}=\frac{1}{5}[/tex]
For [c,d]
[tex]\dfrac{4-3}{11-4}=\dfrac{1}{7}[/tex]
On a hot summer day, Roy and his friends decided to have a water fight. They threw water balloons for 52 minutes. When all the water balloons were gone, they sprayed water with hoses for 42 minutes. The water fight ended at 5:27 P.M. when Roy's dad showed up with ice cream. What time did the water fight start?
Answer:
3:53 P.M. (15:53)
Step-by-step explanation:
x + 52 + 42 = the time (5:27 pm)
First we try to remove the extra minutes from 5:27pm
42 min (the second part of the fight) - 27 (the minutes from 5:27 pm) = 15
Now we have 15 minutes to take away and 60 minutes from 5pm
60 (5pm) - 15 = 45
Now once again we remove the extra minutes
52-45 (4:45pm) = 7
Then we take away the 7 minutes from 4pm
60 (4pm)- 7= 53
Very confused on this I need help quickly
(2,-9)
slope = -3
1. y + 9 = -3(x - 2)
2. y = -3x - 3
3. x = -1
4. I don't know if you wanted the answer for this one. If so I can't see the whole problem.
Determine the number and type of solutions for the equation – 5x2 + 192 — 12 = 0
O two different rational-number solutions
O One repeated irrational-number solution
O One repeated rational-number solution
OTwo imaginary-number solutions
O two different irrational-number solutions
what kinds of triangles can you use the pythagorean theorem on
Answer:
Step-by-step explanation:
The Pythagorean theorem applies to right angled triangles only.
However, for any other triangle, by dropping a perpendicular from any vertex on to the opposite side, you form two right angled triangles both of which can be solved by the Pythagorean theorem.
So, the Pythagorean theorem applies to right angled triangles directly and to other triangles indirectly.
9514 1404 393
Answer:
right triangles
Step-by-step explanation:
The Pythagorean theorem relates the side lengths of a right triangle.
c² = a² +b² . . . . . . . . for legs 'a' and 'b' and hypotenuse 'c'
__
Additional comments
The more general form of the relation between side lengths of a triangle is given by the Law of Cosines:
c² = a² +b² -2ab·cos(C) . . . . for sides 'a', 'b', and 'c' with angle C opposite side 'c'
You will notice this reduces to the Pythagorean relation when C = 90°.
__
Triples of integers that satisfy the Pythagorean relation are called Pythagorean triples. The smallest set (and the only sequential set) of these is (a, b, c) = (3, 4, 5). Other triples commonly seen in math problems are (5, 12, 13), (7, 24, 25), (8, 15, 17), and multiples of these.
Stellan began a proof.
JL=KM because segment JL≅ segment KM.
JK+KL=JL and KL+LM=KM, by the segment addition postulate.
KL+LM=JL, by substituting JL for KM.
What is a possible next step in Stellan's proof?
Answer:
Bottom left
Step-by-step explanation:
Trust me bro
please help me, i will mark the brainliest pls!
Answer:
2x9 + 2x3
Step-by-step explanation:
You distribute the 2 to the other terms (9 and 3) in the brackets.
pls help me i need the answer if nonsense answer:report
if correct answer:mark as branliest
[tex]1. {3}^{2} + {2}^{3} \\ = 9 + 8 \\ = 17[/tex]
[tex]2. {5}^{3} + {2}^{4} \\ = 125 + 16 \\ = 141[/tex]
[tex]3. {2}^{0} + {5}^{0} + {6}^{0} \\ = 1 + 1 + 1 \\ = 3[/tex]
[tex]4.1000 - {10}^{2} \\ = 1000 - 100 \\ = 900[/tex]
[tex]5. {3}^{3} - {2}^{3} \\ = 27 - 8 \\ = 19[/tex]
[tex]6. {5}^{2} - {3}^{2} \\ = 25 - 9 \\ = 16[/tex]
[tex]7. {10}^{2} - {10}^{0} \\ = 100 - 1 \\ = 99[/tex]
[tex]8. {2}^{4} \times {3}^{2} \\ = 16 \times 9 \\ = 144[/tex]
[tex]9. {10}^{3} - {5}^{2} \\ = 1000 - 25 \\ = 975[/tex]
[tex]10. {7}^{2} \times {2}^{2} \\ = 49 \times 4 \\ = 196[/tex]
Hope it helps.
Do comment if you have any query.
HELP IM TIMED The outdoor temperature is 4 degrees. If the temperature drops by 4 degrees, then the temperature will be
degrees.
Answer:
0 degrees
Step-by-step explanation:
if the temp started as 4 then decreased by 4 it would be 0.
Given that angle a = 54° and angle b = 48°, work out x.
a
b
x
The diagram is not drawn accurately.
=
PLEASE HELP ASAP!! 20 POINTS!!
Answer:
a+b+x=180,sum of angles in a triangle
54+48+x=180
102+x=180
x=180-102
x=78
a jewlery store earns 9% commision each week. last week, jarrod sold 700 dollars worth of jewlry. how much did the store make from his sales?
Answer:
763
Step-by-step explanation:
Write the inequality that best represents the relationship shown in this number line:
Answer:
[tex]x \geqslant - 1[/tex]
Step-by-step explanation:
the arrow is facing to the right making the inequality greater than, the dot is closed so greater than or equal to, and the dot is on -1
Answer: X > -1
Step-by-step explanation:
Trust Bro
What finds the optimum value for a target variable by repeatedly changing other variables, subject to specified constraints
What finds the optimum value for a target variable by repeatedly changing other variables, subject to specified constraints, is an extension of goal-seeking analysis.
Goal seeking refers to a set of scientific methodologies aimed at determining the conditions for obtaining a predetermined end state. This notion, also called what-if analysis or back solving, was established in the 1950s in the fields of psychology and computer science.
Thus, the researchers are in charge of generating a favorable context for the generation of the expected results, with the aim of analyzing them once produced, and obtaining scientific knowledge.
Learn more in https://brainly.com/question/13383239
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
x=1, y=10
Step-by-step explanation:
we use substitution to get from the bottom equation that y=12-2x,
plug that into the first equation to get 5x+12-2x=15
combining like terms and cancelling, we get 3x=3
so x=1,
substituting that into the former equation gives us y=10
The equation, and you have to find what he did wrong. Please help me, i'm stuck- ive been stuck on it since yesterday
9514 1404 393
Answer:
terms were improperly combined
Step-by-step explanation:
I find the easiest way to identify the error in a solution is to solve it myself and compare with what is shown as being done.
Here, we're starting with ...
[tex]\dfrac{1}{5}g-\dfrac{1}{10}-g+1\dfrac{3}{10}g-\dfrac{1}{10}[/tex]
If we identify the g-terms and the constant terms, we can group them the way Tyson did:
[tex]\dfrac{1}{5}g+(-1)g+1\dfrac{3}{10}g-\dfrac{1}{10}-\dfrac{1}{10}[/tex]
The next step is to combine like terms. We can factor out g, so the coefficients are easier to see and combine.
[tex]\left(\dfrac{1}{5}+(-1)+1\dfrac{3}{10}\right)g-\dfrac{1}{10}-\dfrac{1}{10}\qquad\text{step 1a}\\\\\dfrac{1}{2}g-\dfrac{1}{5}\qquad\text{step 2}[/tex]
The error is 1 3/10 was combined with -2/10 as a constant instead of being combined with -4/5 as a coefficient of g.
