PLEASE HELP ME WITH THIS PROBLEM!!!!!!!!!!
The following figures are not drawn to scale but AB and CD are straight lines. Find x.
Answers
Answer: x = 30
Step-by-step explanation:
Since AB and CD are straight lines, vertical angles formed by them are congruent. Angle DOB is equal to angle AOC which is equal to 2x. Since you know that a straight angle is equal to 180 degrees, you can say :
2x + 90 + x = 180
3x + 90 = 180
3x = 90
x=30
Hope this helped :)
Related Questions
how do i solve for the x?
Answers
Answer:
sikeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
Problem: Four students tried to write 12x + 3y=9 in equivalent y= mx + b form.
Question: Did each student get an equation that is equivalent to the original Ax + By=C form?
If so, explain the reasoning for each step. If not, tell what errors the students made.
Answers
Find the product of each expression using properties of complex numbers.
1. (x + 3i)(x − 3i)
2. (x − 4i)(x + 4i)
3. (x + 8i)(x − 8i)
Answers
Answer:
[tex](x+3\mathbf{i})(x-3\mathbf{i})=x^2+9[/tex]
[tex](x-4\mathbf{i})(x+4\mathbf{i})=x^2+16[/tex]
[tex](x+8\mathbf{i})(x-8\mathbf{i})=x^2+64[/tex]
Step-by-step explanation:
Complex Numbers
The complex numbers are known by having an 'imaginary' part along with the real part. They can be expressed like a + bi, where
[tex]\mathbf{i}=\sqrt{-1}[/tex]
Or, equivalently:
[tex]\mathbf{i}^2=-1[/tex]
Let's find the result of the following products. On each one of them, there is a sum of a binomial multiplied by the subtraction of a binomial with the very same terms. It leads to a well-known polynomial identity:
[tex](a+b)(a-b)=a^2-b^2[/tex]
1. [tex](x+3\mathbf{i})(x-3\mathbf{i})[/tex]
Applying the above-mentioned identity:
[tex](x+3\mathbf{i})(x-3\mathbf{i})=(x^2-(3\mathbf{i})^2)[/tex]
[tex]=x^2-9\mathbf{i}^2[/tex]
Since [tex]\mathbf{i}^2=-1[/tex]
[tex](x+3\mathbf{i})(x-3\mathbf{i})=x^2-9(-1)[/tex]
[tex]=x^2+9[/tex]
2. [tex](x-4\mathbf{i})(x+4\mathbf{i})[/tex]
Proceed in the same way as before:
[tex](x-4\mathbf{i})(x+4\mathbf{i})=(x^2-16\mathbf{i}^2)[/tex]
[tex]=(x^2-16(-1))[/tex]
[tex]=x^2+16[/tex]
3. [tex](x+8\mathbf{i})(x-8\mathbf{i})[/tex]
[tex](x+8\mathbf{i})(x-8\mathbf{i})=(x^2-64\mathbf{i}^2)[/tex]
[tex]=(x^2-64(-1))[/tex]
[tex]=x^2+64[/tex]
What is the density of an object with a mass of 25 grams and volume of 37 cubic centimeters.
Answers
Answer:
25x37=925
Step-by-step explanation:
what is the hypotenuse of 22 120
Answers
Answer:
122
Step-by-step explanation:
thats what o got anyway
Which of the following is an example of a rational number that is not an integer?
Answers
Will give brainliest,
Is it possible for triangle JKL to be similar to triangle XYZ? Explain. m
Answers
Answer:
we I would need to see the triangles, but yes. Both triangles can have that same the same angles or the same side lengths.
Solve for x: 3x + 2 = 11
Answers
Answer:
x = 3
Step-by-step explanation:
3 x 3 + 2 = 11 Because 3x3 = 9 and 9 + 2 = 11
I hope this helps!
Answer:
x=3
Step-by-step explanation:
3x+2=11
(subtract 2 on both sides)
3x=9
(divide by 3 on both sides)
x=3
2x+y=-5 slope intercept form please
Answers
Answer:
y=-2x+5
Step-by-step explanation:
Answer: y= -2x - 5
Step-by-step explanation:
2x + y = - 5 To convert it into slope-intercept form subtract 2x from both sides
-2x -2x
y= -2x - 5
Multiply (10 + 2-8)(110 - 2-18)
A) -22
B)-246
C)10-8suqareroot2
D)10+8suqareroot2
Answers
Answer:
First Option (A) -22
Step-by-step explanation:
Answer:
a) 22
Step-by-step explanation:
just took it on edge
second problem is c!
EMERGENCY! PLEASE ANSWER ASAP!
Answers
Answer:
It looks like you can keep the same nad just add the exponents
Step-by-step explanation:
plzz mark brainliest
-3y=15
What is the slope of the line?
What is the y-int?
What is the x-int?
What is the zero?
Answers
Answer:
the slope of the line is 0
the y-int is -5
there is no x int since the is no slope
sorry about the last one, i forgot what the zero is
if |a+3|=4 which describes all possible values of a)
Answers
Answer:
1 and -1
Step-by-step explanation:
The absolute value means that the answer will always come out as positive, meaning that both 1 and -1 fit in this equation.
Answer:
-7 and 1.
Step-by-step explanation:
either a + 3 = 4 or a + 3 = -4
So a = 1 and a = -7.
The distance from Boston to Philadelphia by plane is 436 kilometers. A pilot flies this route 252 times. Does the pilot travel more or less than 100,000 kilometers?
Answers
Answer: More
Step-by-step explanation: 436x252 = 109872.
Answer:
more than 1000,000
Step-by-step example
well 436 times 252 is 109872 and 109872 minus 1000,000 is 890128 miles therefor a pilot flies more than 1000,000 miles from Boston to Philadelphia
Please help I’m struggling image below I will mark Brainly
Answers
Answer:
5/6
Step-by-step explanation:
The x access is on 5The y access is on 6Put them together: 5/6I'm not sure if this is correct, but I still hope this helps!
what is the length of a cube with 27 ft
Answers
Answer:
3
Step-by-step explanation:
27=3^3
=3*3*3
27=27
i think it is clear &i hope it helps you
Select all the irrational numbers BRAINLY PLS HEP ME RIGHT NOW IT MATH !
Answers
Answer:
rational are repeating decimals. So choose the ones without the line on the top
Step-by-step explanation:
In triangle ABC, angle a equals 25°, angle C equals 55°, and a B equals 60
Answers
Answer:
7250
Step-by-step explanation:
This is like the pythagorean theorem. So you add A^2,B^2, and C^2. So 25^2 + 60^2 + 55^2. 625 + 3600 + 3025. That equals to 7250.
x+2y=16
standard to slope intercept simplification
Answers
explanation:
x+2y = 16
-x -x
2y = -x + 16
(divide by 2 on bo sides to get y alone)
During one week, Sheila made several changes to her bank account. She made four withdrawals of $40 each from an ATM. She also used her check card for a $156 purchase. Then she deposited her paycheck of $375. By how much did the amount in her bank account change during that week?
Answers
Answer:
179
Step-by-step explanation:
40+156=196
375-196= $179.00
if I'm not wrong
Answer: $59 increase
Step-by-step explanation: since we don't know how much she had in her bank account prior to making 4 withdrawals it's hard to find the answer so a like and rating would be appreciated. We know she withdrew $40 dollars 4 times which would mean she withdrew $160 dollars, then she used her card for a $156 dollar purchase, so if we add $160 and $156 dollars we get $316 dollars spent. Then she deposited a check of $375 dollars into the bank account so we have to subtract $316 from $375 dollars to get $59 dollars, now since we subtracted and we are left with an extra amount rather than the money wasted we started with it means it's an increase as we are left with $59 and not with a price lower than $316.
PLEASE HELP!!!!!
Type the integer that makes the following subtraction sentence true:
− –478 = –398
Answers
Can anyone please help me with number 2 ❤️
Answers
Answer:
[tex]A = 101.5825591635[/tex]°
Step-by-step explanation:
We can use the law of cosines. We have a triangle with side lengths as attached. (See image.)
So we want to solve for angle A.
We do this by using:
[tex]cos(A)=(b^2 + c^2 - a^2) / (2bc)[/tex]
Here we have:
a = 36
b = 27
c = 19
So we plug in to get:
[tex]cos(A)=(27^2 +19^2-36^2)/(2*27*19)[/tex]
[tex]cos(A)=-0.20077972709[/tex]
[tex]A = 101.5825591635[/tex]°
$86 for 8 hours of babysitting. how much do u make for one hour?
unit rate :
plz help meee
Answers
Figure A is a scale image of Figure B.
2
Figure A
18
Figure B
27
45
What is the value of 2?
Answers
9514 1404 393
Answer:
30
Step-by-step explanation:
The ratios of corresponding sides in similar figures are proportional.
x/18 = 45/27
x = 18(45/27)
x = 30
h(x) = 4x +3. What is
the coordinate pair for h (1)?
Answers
9514 1404 393
Answer:
(1, 7)
Step-by-step explanation:
Fill in x=1 and do the arithmetic.
h(1) = 4(1) +3 = 7
The coordinate pair is ...
(x, h(x)) = (1, h(1)) = (1, 7)
I know i already asked this but i need the answer!!!!
Which expression shows the sum 9 + 21 rewritten as a product of the GCF and a sum?
O 9(1 + 21)
O 3(3 + 7)
O 3(3 + 21)
O 9(1 + 3)
Answers
Answer:
3(3+7)
Step-by-step explanation: you factor out the greatest common multiple. 3 times 3 is 9 and 3 times 7 is 21
Ayo help me out. ;( spdkfjncnv
Answers
Costs of homes can be very different in different parts of the United States.
2. A 2,100-square-foot home in Cheyenne, Wyoming, costs $110 per square foot. How much does this home cost?
Answers
Answer:
110 x 2100 = $231,000
Step-by-step explanation:
1) х + 4 - 6x = 14
Answers
Answer:
10- 14 -4
Step-by-step explanation:
so practically what I was saying is 6 +4equals 10 and then 14minus10 equals 4
Answer:
x-6x=14-4
5x=10
X=10/5
X=2
An amusement park charges $20 to enter the
park and an additional fee for each time a guest
rides a roller coaster. Emily rode 5 times on a
roller coaster. Her total payment was $40.
Shaheem rode 7 times on a roller coaster. What
was his total payment?
Answers
Answer:
Shaheem paid $76 as his total.
Step-by-step explanation:
He paid $20 to get in, Emily paid $40 for 5 rides, and if you divide that to get the payment for one ride which is $8. So you multiply 8 by 7 because 7 is how many rides he rode which equals to 56, plus 20(his enter fee) would be $76.