Answers
Related Questions
(-7-3i)(11-8i)
Simplified into the a+bi form
Answers
Answer: what
Step-by-step explanation:
Which expression is equal to (x+2)(x−4)(x−4)(x+4)?
x+2x+4
x−2x+4
x−2x−4
x+4x+2
Answers
Answer:Since the expression on each side of the equation has the same denominator, the numerators must be equal.
x
2
=
16
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x
=
±
√
16
The complete solution is the result of both the positive and negative portions of the solution.
Tap for more steps...
x
=
4
,
−
4
Exclude the solutions that do not make
x
2
x
−
4
=
16
x
−
4
true.
x
=
−
4
Step-by-step explanation:
Please determine x.
Answers
Explain: 3 triangle corners = 180
180-90-68 = 22
Flat corner = 180
=> x=180-22=158
What is 8 2/5 minus 5/8
Answers
Answer: 7.775 as a decimal, as a fraction, 311/40.
Step-by-step explanation:
Answer:
im 95%ly sure itz just 8
Step-by-step explanation:
What is the angle measurement of CBD?
A
U
68°
D
B
20°
229
Ο Ο Ο Ο
29ο
1
25°
24
Answers
Tom enjoys going to the hardware store. In the past three
weeks, he has spent a total of $85.84 on a hammer, nail
gun, and box of nails. What amount shows his average
spending per week?
A) $14.31
B) $28.61
C) $69.93
D) $85.84
Answers
Answer:
B) $28.61
Step-by-step explanation:
Average spending per week:
85.84 ÷ 3 ≈ 28.61
Round 1.9578 to 1 decimal
Answers
Answer:
2
Step-by-step explanation:
the first decimal is 9
9>5 so by rounding 1.9578 to 1 decimal we get 2
Pls help easy points
Answers
Answer: The tax for one dollar is $.0825. The tax for the 12 dollar soap is $.99
Step-by-step explanation:
To figure this out you divide the tax by the price. (.66 divided by 8) This means its .0825 tax for every dollar.
A farm is to be built in the shape of Quadrilateral ABCD, as shown below. All four sides are equal.
A rhombus ABCD is shown with diagonal AC equal to 18. 3 feet and diagonal BD equal to 13.8 feet
What is the area of the farm? (1 point)
a
73.2 square feet
b
111.2 square feet
c
126.27 square feet
d
168.36 square feet
Answers
Answer:
c 126.27 square feet
Step-by-step explanation:
sum of two triangles
18.3 * (13.8/2) * 2 = 126.27
I’m bad at math is there anyone good at this if so please help
Answers
Answer:
Right triangle
Step-by-step explanation:
[tex] {5}^{2} + {(5 \sqrt{3} )}^{2} = 25 + 75 = 100 \\ \\ {10}^{2} = 100 \\ \\ \implies \: {5}^{2} + {(5 \sqrt{3} )}^{2} = {10}^{2} \\ [/tex]
So, by converse of Pythagoras theorem given side lengths form a right triangle
Answer:
Right
Step-by-step explanation:
The side lengths are 5, 5√3, and 10. This tells me this is a 30° 60° 90° triangle. In a 30° 60° 90° triangle, the relationship between the side lengths are a, a√3, and 2a. a represents the side length of the first leg of the triangle. a√3 represents the second side length, which is the first leg's side length multiplied by √3. Finally, 2a represents the hypotenuse which is two times bigger than the first leg's side length.
How do you further solve this?
Answers
Answer:
x = ±√89-30 cos(55) (everything is under the radical)
and then plug the radical into a calculator and you get two answers:
x1= -9.39873
x2=9.39873
Step-by-step explanation:
i hope this helped :)
In a right triangle ABC, C is the right angle. What does cosB equal?
1. SinB
2. SinA
3. CosA
4. Not enough info
Answers
Given that,
ABC is a right angle triangle, C is the right angle.
To find,
cosB = ?
Solution,
The sum of angle of a triangle is equal to 180 degrees. So,
∠A + ∠B + ∠C = 180°
Put ∠C = 90°
∠A + ∠B + 90° = 180°
∠A + ∠B = 90°
Taking cos with each term.
cosA+cosB = cos (90)
cosA+cosB = 0
cosB=-sinA
Hence, cosB = sinA.
What is the x-coordinate of the point shown in the graph?
y
8
4
-2
2 2
4
B
-8-6-4-2
-2
4
Answers
Answer:
-5, -7 or its -7, -5
Step-by-step explanation:
Answer:
-7 -5
Step-by-step explanation:
The scatter graph shows the scores of 16 students on the biology and physics tests
Answers
Step-by-step explanation:
85 l don't see questions properly so l knew this much only l don't know exact answer so l write this answer
If A = 4x2 + 9x - 5 and B = 6x2 – 3x - 9, then A - B equals
Answers
Answer:
1 I think I'm not 100% sure though
a Zoo ticket cost $13 for adults in about $8 for students if a company of 125 people wanted to take his employees to the zoo how much would they have to pay
Answers
Answer:
Assuming there all adults, it would be $1625
Step-by-step explanation:
How is 75% of 60 minutes 45?
Answers
Answer:
It just is see explanation
Step-by-step explanation:
75% is equal to 0.75, or 3/4. If you multiply the full 60 minutes to 3/4, then your product is 45 minutes. That's how 75% of 60 minutes is 45 minutes.
Answer: 75% of a number is the same thing as 3/4 of the number.
so for example, divide 100 by 4. you get 25 right?
right, so multiply 25 by 3 and you get 75. That's what 3/4 of something is.
now divide 60 by 4. you get 15 right?
right, so multiply 15 by 3, and you get 45 :)))
that's why 75% of 60 is 45.
i hope this helps!!
BTW when you get a question with percentages, you can flip them! In this case it doesn't really help to do so, but for example if you had a question asking:
what is 16% of 50?
FLIP IT. it's the same thing as 50% of 16!!! This works with like any percentage!!!
17% of what number is 51
Answers
Answer:
300
Step-by-step explanation:
Is Sue´s answer correct? if not, why?
Answers
She simplified correctly.
The solution is indeed none
Solution: Sue is correct
Choose the relationship that is modeled by the table, the graph, and the equation. Morgan buys apples for $2 per pound. O Morgan swims 2 miles more than the number of hours he is exercising, © Morgan practices for 2 hours a day. O Morgan walks 2 miles per hour.
Answers
Answer:
Morgan walks 2 miles per hour.
Step-by-step explanation:
Answer:
d Morgan walks 2 miles per hour.
Step-by-step explanation:
HELP WILL MARK BRANILY
Answers
Answer:
Hello there
Step-by-step explanation:
Hope you figure it out the answer
Jacelyn charges $9 per hour for umpiring softball games. If u represents Jacelyn's total fee after umpiring for h hours,
which equations can be used to model the situation?
Answers
how many hours? you didnt tell
What is the solution to this equation? 3x - x + 8 + 5x - 2 = 10 A. x=16/7 B. x=16/9 C. x=4/9 D.x=4/7
Answers
Answer:
D
Step-by-step explanation:
checked it over as well
Which of the following expressions represents the statement below?
four added to seven times a number
A.
7(n + 4)
B.
4n + 7
C.
4(n + 7)
D.
7n + 4
Answers
Answer:
d
Step-by-step explanation:
7 times a number would be 7n and with addition you can move the numbers around and it won't affect the result.
1/6(x-5)=1/2(x+6) help
Answers
Answer: x= -23/2
Step-by-step explanation:
multiply both sides of the equation by 6
x-5=3(x+6)
distribute 3
x-5=3x+18
move variables to lest-hand side and change sign
x-3x=18+5
like terms
-2x=23
the divide both sides by -2
x= -23/2
Help please, thank you
Answers
9514 1404 393
Answer:
A, D
Step-by-step explanation:
The length desired is opposite the given angle. The length given is adjacent to the given angle, so the tangent relation applies:
Tan = Opposite/Adjacent
tan(25.4°) = x/1600 . . . . . . . matches 1st choice
Multiplying by 1600 gives ...
x = 1600·tan(25.4°) . . . . . . . matches 4th choice
For which line is the slope least?
Answers
What do you get when you cross an electric eel and a sponge puzzle time riddle
Answers
Answer:
A shock absorber?
Step-by-step explanation:
ABCD is a quadrilateral with AB equal and parallel to DC. prove that AD is equal and parallel to BC
Answers
Answer: see below proof
Step-by-step explanation:
Imagine a diagonal line AC
If AB = DC and AB // DC then angle BAC =
Angle ACD Alternate Interior angles theorem.
Then if AB = AD and angle BAC = angle ACD and AC = AC then triangle ABC is congruent to triangle CDA.
If triangle ABC is congruent to triangle CDA then AD = BC because congruent parts of congruent triangles are congruent.
If triangle ABC is congruent to triangle CDA then angle ACB = angle CAD because congruent parts of congruent triangles are congruent.
If angle ACB = angle CAD then AD // BC because of the alternate interior angles theorem.
Tom bought a pen for $30
and sold it to gain
20% on his cost price. How much money
did he gain?
Answers
Answer:
he gained 6 dollars
Step-by-step explanation:
30 x 0.2
Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.
How to calculate unit price of something?Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.
Thus, unit price of something is price of 1 thing.
Lets suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.
It is given that Tom bought a pen for $30 and sold it to gain 20% on his cost price.
Therefore,
30 x 20%
30 x 0.2 = 6 dollars
Thus, he gained 6 dollars.
Hence, Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.
Learn more about unit price here:
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