Answer:
{y,x}={
3
11
,
3
19
}
Step-by-step explanation:
Figure A is a scale image of Figure B.
2
Figure A
18
Figure B
27
45
What is the value of 2?
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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
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)
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]
if |a+3|=4 which describes all possible values of a)
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.
Identify the segment bisector of AB. Then find AB.
c
4 5/6
D
A
B
Segment bisector=
AB =
angles, bisectors, angle relationships, and how to classify polygons. 1.1 Points, Lines AB or any combination of two of the letters A,C or B in any order. c) Yes, they lie on. If the two endpoints are (-5, 6) and (3, 4), then the midpoint is (-1, 4). -1 is halfway 108◦. = 72. ◦. Example 6: Are ∠CDA and ∠DAB a linear pair?
2x+y=-5 slope intercept form please
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
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)
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
how do i solve for the x?
Answer:
sikeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
1) х + 4 - 6x = 14
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
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.
what is the length of a cube with 27 ft
Answer:
3
Step-by-step explanation:
27=3^3
=3*3*3
27=27
i think it is clear &i hope it helps you
h(x) = 4x +3. What is
the coordinate pair for h (1)?
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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)
Please help I’m struggling image below I will mark Brainly
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!
In triangle ABC, angle a equals 25°, angle C equals 55°, and a B equals 60
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.
-3y=15
What is the slope of the line?
What is the y-int?
What is the x-int?
What is the zero?
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
PLEASE HELP!!!!!
Type the integer that makes the following subtraction sentence true:
− –478 = –398
Which of the following is an example of a rational number that is not an integer?
Ayo help me out. ;( spdkfjncnv
Multiply (10 + 2-8)(110 - 2-18)
A) -22
B)-246
C)10-8suqareroot2
D)10+8suqareroot2
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!
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?
Answer:
110 x 2100 = $231,000
Step-by-step explanation:
EMERGENCY! PLEASE ANSWER ASAP!
Answer:
It looks like you can keep the same nad just add the exponents
Step-by-step explanation:
plzz mark brainliest
Solve for x: 3x + 2 = 11
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
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?
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.
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?
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
x+2y=16
standard to slope intercept simplification
$86 for 8 hours of babysitting. how much do u make for one hour?
unit rate :
plz help meee
Will give brainliest,
Is it possible for triangle JKL to be similar to triangle XYZ? Explain. m
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.
Select all the irrational numbers BRAINLY PLS HEP ME RIGHT NOW IT MATH !
Answer:
rational are repeating decimals. So choose the ones without the line on the top
Step-by-step explanation:
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?
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.
Can anyone please help me with number 2 ❤️
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]°
what is the hypotenuse of 22 120
Answer:
122
Step-by-step explanation:
thats what o got anyway