Answer: (4-4i)+(3-2i) = 7-6i
Step-by-step explanation:
To add or subtract two complex numbers, just add or subtract the corresponding real and imaginary parts. For instance, the sum of 4 -4i and 3 - 2i is 7 -6i. The numbers in standard form will be a + bi, where a is the real part and bi is the imaginary part.
True or False. When graphing the inequality y>3x+2 the line drawn would be a solid line.
Answer:
False
Step-by-step explanation:
Since the inequality uses the greater than symbol >
Then the line drawn should be a broken line.
If the inequality had ≥ ( greater than or equal to )
Then the line would be solid.
the guy above is correct
The answer is: False
Please help it’s geometry
13 points! Easy question for y’all mathy people! Ez points! Question in photo.
Answer: 1, 2, and 4
Step-by-step explanation:
The graph with straight line is an function.
The second one shows about every has two single numbers instead of more than one output.
The third one shows the points, but -1 has more than one output, show it's not an function.
The final one shows the slope intercept form and it's just an function.
Answer:
1,2,4 also
Step-by-step explanation:
A circular pool has a radius of 20 feet. What is the area of the pool? Use 3.14 for π.
Answer:
197.192
Step-by-step explanation:
The formula forthe area of a circle is 3.14r squared
so 3.14(20) 2(squared)=197.192
How can I solve this problem?
a) 108°
Answer:
b) 54°
Step-by-step explanation:
a) By arc sum property of a circle.
[tex] m\widehat {AEB} + m\widehat {AB} = 360°\\
252° + m\widehat {AB} = 360°\\
m\widehat {AB} = 360°- 252°\\
\huge \red {\boxed {m\widehat {AB} = 108°}} \\[/tex]
b) In the given figure, DC is tangent to the circle with O at point A and AB is chord or secant. Therefore, by tangent secant theorem:
[tex] m\angle BAC = \frac{1}{2} \times m\widehat {AB}\\\\
\therefore m\angle BAC = \frac{1}{2} \times 108°\\\\
\huge \purple {\boxed {m\angle BAC = 54°}} [/tex]
An exterior angle of an isosceles triangle has a Measure 160°. Find two possible sets of measures for the angles of the triangle. If the exterior angle of the bases is 160° then the measure of the angle of each base is
Answer:
the angles would either be 20, 20, 140 or 20, 80, 80
Step-by-step explanation:
Answer:
20, 20, 140 or 20, 80, 80
Step-by-step explanation:
Which algebraic expressions are polynomials
Answer:
2,3,5,6
Step-by-step explanation:
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!
Answer:
C. Add the equations
Step-by-step explanation:
Adding both the equations will help eliminating 5y.
b) Write 1.27 x 10-2 as an
as an ordinary number.
Answer:
10.7...........................................
Find the point-slope equation for the line
that passes through the points (5, 19) and
(-5, -1). Use the first point in your equation. please help :/
y- [?]=[?](x-[?])
Answer:
work is shown and pictured
The point-slope form of the line is [tex]y-19=2(x-5)[/tex].
Important information:
A line passes through the two points [tex](5,19)[/tex] and [tex](-5,-1)[/tex].Use the first point in the equation.We need to find the point-slope equation for the line
Point-slope equation:The point-slope form of a line that passes though the points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is:
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
Substitute [tex]x_1=5,y_1=19,x_2=-5,y_2=-1[/tex].
[tex]y-19=\dfrac{-1-19}{-5-5}(x-5)[/tex]
[tex]y-19=\dfrac{-20}{-10}(x-5)[/tex]
[tex]y-19=2(x-5)[/tex]
Thus, the point-slope form of the line is [tex]y-19=2(x-5)[/tex].
Find out more about 'point-slope form' here:
https://brainly.com/question/12743204
Mel's Furniture received an invoice dated September 27 for 5 bedroom sets at $3,000 each. The invoice indicated a chain discount of 5/8/3. The seller of the furniture prepaid the freight of $200 (FOB Shipping Point). Terms were 2/10, EOM. Assuming that Mel pays within the discount period, what is the total payment amount?
Answer: $12,916.70
Step-by-step explanation:
Given the following:
Invoice received :
Bedroom set = 5
Cost per set = $3,000
Chain discount = 5/8/3
Freight cost = $200
If Mel pays within the discount period:
Chain discount given = 5/8/3
Therefore, net equivalent price rate equals:
(1 - 0.05) × (1 - 0.08) × (1 - 0.03) =
0.95 × 0.92 × 0.97 = 0.84778
Net price = total cost × 0.84778
($3000 × 5) × 0.84778
$15000 × 0.84778 = $12,716.7
Net equivalent price + FOB Shipping
$12,716.7 + $200 = $12,916.70
Two Parallel lines are cut by a transversal and form a pair of alternate exterior angles. One angle measures (6x+5) and other measures (7x+4). Explain how to determine what those other angles actually measure.
Answer:
The other angles will measure 83.9° and 96.1°Step-by-step explanation:
If two parallel lines are cut by a transversal and form a pair of alternate exterior angles, then the sum of the two exterior angles will be equal to 180° as shown;
If one angle measures (6x+5) and other measures (7x+4), then;
(6x+5)+(7x+4) = 180° (sum of two exterior angles)
Firstly, lets get the value of x from the equation.
6x+7x+9 = 180°
13x= 180-9
13x = 171
x = 171/13
x = 13.15°
The first angle 6x+5 will measure 6(13.15)+5 = 83.9°
The other angle 7x+4 will mesure 7(13.15)+4 = 96.1°
Answer:
Since the lines are parallel, the alternate exterior angles are congruent. Therefore you can set the expressions equal to each other and solve for x. Then you can substitute the value of x back into either expression to find the angle measure.
Step-by-step explanation: exact answer
Betty is now three times as old as Mickey, but in five years she will be only twice as old as Mickey. What are the respective ages of Mickey and Betty now?
Answer:15
Step-by-step explanation:
it could be 15 but (three times) is geting me off
sorry if i was no help and all the number's wow
[tex]x - 15 = - 6[/tex]
Answer:
The value of [tex]x[/tex] :
[tex]x = 9[/tex]
Step-by-step explanation:
-Solve for [tex]x[/tex] :
[tex]x =- 15 = -6[/tex]
-Add both sides by 15:
[tex]x - 15 + 15 = -6 + 15[/tex]
[tex]x = 9[/tex]
Now, you have found the answer.
Can someone please help me only if you know how to do geometry thank you
Answer: SSS
The markings on the two triangles display side congruencey.
So AC is congruent to EC and etc. There are three pairs of side markings, so that means the two triangles are congruent because of the side, side side postulate.
Richard drives his car for 5 hours.
His average speed is 30 mph.
(a) How far does Richard travel?
miles
Richard drives 560 km the next day.
(b) Work out how much further Richard travelled, compared to the previous day.
5 miles = 8 kilometers
miles
Answer:
A. 150 miles
B. 200 miles further
Step-by-step explanation:
Multiply 30 by 5 to find how far he traveled the first day
30 x 5 = 150 miles
For the second day, convert km to miles by making a proportion
[tex]\frac{5}{8}[/tex] = [tex]\frac{x}{560}[/tex]
x = 350 miles
Then, to find the difference, subtract the 350 - 150 = 200
The angle \theta_1θ 1 theta, start subscript, 1, end subscript is located in Quadrant \text{II}IIstart text, I, I, end text, and \sin(\theta_1)=\dfrac{1}{4}sin(θ 1 )= 4 1 sine, (, theta, start subscript, 1, end subscript, ), equals, start fraction, 1, divided by, 4, end fraction . What is the value of \cos(\theta_1)cos(θ 1 )cosine, (, theta, start subscript, 1, end subscript, )?
Answer:
[tex]\cos(\theta_1)=-\dfrac{\sqrt{15}}{4}[/tex]
Step-by-step explanation:
The angle [tex]\theta_1[/tex] is located in Quadrant II.
[tex]\sin(\theta_1)=\dfrac{1}{4}[/tex]
From trigonometry, we know that:
[tex]\sin(\theta)=\dfrac{Opposite}{Hypotenuse}\\$Therefore:\\Opposite=1\\Hypotenuse=4\\Using Pythagorean theorem:\\Hypotenuse^2=Opposite^2+Adjacent^2\\4^2=1^2+Adjacent^2\\Adjacent^2=16-1\\Adjacent^2=15\\Adjacent=\sqrt{15}[/tex]
Now, in Quadrant II,
The x-axis is negativeThe y-axis is positiveTherefore, the Adjacent angle to [tex]\theta_1 =-\sqrt{15}[/tex]
Therefore:
[tex]\cos(\theta_1)=\dfrac{Adjacent}{Hypotenuse}=\dfrac{-\sqrt{15}}{4}\\\\\cos(\theta_1)=-\dfrac{\sqrt{15}}{4}[/tex]
Match each function with its domain. 1. S(x) = √x 2. H(x) = √2+x 3. Z(x) = √x-2 4. Q(x) = √2-x 5. V(x) = √-x 6. N(x) = ^3√2-x x ≤ 2 x ≥ -2 x ≥ 0 x ≥ 2 x ≤ 0 All real numbers
Answer:
1. x ≥ 0
2. x ≥ -2
3. x ≥ 2
4. x ≤ 2
5. x ≤ 0
6. All real numbers
Step-by-step explanation:
Domain of square function:
Suppose we have a square function in the following format:
[tex]f(x) = \sqrt[n]{g(x)}[/tex]
If n is even, the domain of f(x) is:
[tex]g(x) \geq 0[/tex]
Otherwise, if n is odd, the domain of f(x) is all real numbers.
1. S(x) = √x
If n does not appear is that it is 2.
g(x) = x
So the domain is:
[tex]x \geq 0[/tex]
2. H(x) = √2+x
g(x) = 2 + x
So
[tex]2 + x \geq 0[/tex]
[tex]x \geq -2[/tex]
3. Z(x) = √x-2
g(x) = x - 2
[tex]x - 2 \geq 0[/tex]
[tex]x \geq 2[/tex]
4. Q(x) = √2-x
g(x) = 2 - x
[tex]2 - x \geq 0[/tex]
[tex]-x \geq -2[/tex]
Multiplying by -1, everything
[tex]x \leq 2[/tex]
5. V(x) = √-x
g(x) = -x
Then
[tex]-x \geq 0[/tex]
Multiplying by -1
[tex]x \leq 0[/tex]
6. N(x) = ^3√2-x
Cubic root(odd number), so all real numbers.
What is the value of y when x= 2.5
Answer:
The value of y is unknown bas there is no equation
Janice already has $65 dollars in her savings account. If she puts $5 per week in her account, write an equation to find out how many weeks she must save to have at least $200 in her account.
2 points
Your answer
Answer: 65 + 5x ≥200
Step-by-step explanation:
Hi, to answer this question we have to write an inequality with the information given:
Janice's savings (65) plus the product of the amount she saves per week (5) and the number of weeks (x) must be higher or equal to $200.
Mathematically speaking:
65 + 5x ≥200
If we solve it for x:
5x ≥200-65
5x ≥135
x ≥ 135/5
x ≥ 27 weeks
Feel free to ask for more if needed or if you did not understand something.
Gracie is making 2 and 1/2 batches of chocolate chip cookies for her school bake sale. If one batch of cookies requires 1 and 1/4 cups of flour, how many cups of flour will she need?
Answer:
Step-by-step explanation:
What you just have to do is multiply 2 1/2 and 1 1/4, but i can still do it. 2 1/2 is the same as 5/2 , and 1 1/4 is the same as 5/4, so just multiply the top and the bottom and you will get 25/8 whicxh is basically 3 and 1/8
A carnival ride is in the shape of a wheel with a radius of 30 feet. The wheel has 30 cars attached to the center of the wheel. What is the central angle, arc length, and area of a sector between any two cars? Round answers to the nearest hundredth if applicable. You must show all work and calculations to receive credit.
Answer:
[tex]12^{\circ}[/tex] [tex]1\ feet\ and[/tex] [tex]94.28\ ft^2[/tex]
Step-by-step explanation:
Data provided in the question
The radius of a wheel = 30 feet
Number of cars attached = 30 cars
Based on the above information
The computation is shown below:
The center angle is
[tex]= \frac{360}{30}[/tex]
[tex]= 12^{\circ}[/tex]
The arc length is
[tex]= \frac{12}{360}(30)[/tex]
= 1 feet
And, the area of a sector between two cars is
[tex]= \frac{12}{360}(\pi (30)^2)[/tex]
= [tex]94.28\ ft^2[/tex]
We simply do the above calculations so that each item could be find out
find the values for a and b.
Answer:
the value of a and b is 68
Step-by-step explanation:
the other half is 224 so you minus 360 from 224 which will give us 136 then you divide by 2 to get a and b.
Answer:
a = 68, b = 136
Step-by-step explanation:
The angle in the circle = 360°, thus
b = 360 - 224 = 136
The inscribed angle a between a tangent- chord is equal to half the measure of its intercepted arc, so
a = 0.5 × 136 = 68
which set of angles has the same terminal arm as 70 degrees?
Answer: B = B ∈ {70° + n*360° I n ∈ Z } where Z is the set of the integer numbers.
Step-by-step explanation:
If we have an angle A, the other angles that have the same terminal arm than A can be written as:
B = A + n*360°
Here B is a "coterminal" angle to A. (they have the same terminal side)
where n can be any integer number (if n = 0 we have A = B, which is trivial, this means that any angle can be coterminal with itself.)
So we can write the set as:
B = B ∈ {70° + n*360° I n ∈ Z }
The set of angles that has the same terminal arm as 70 degrees is B = B ∈ {70° + n*360°, n ∈ Z}.
We have to determine, which set of angles has the same terminal arm as 70 degrees.
According to the question,
Let, The angle A and other angle B that have the same terminal arm as A can be written as,
B = A + n × 360°
Where the value of angle A is 70 degrees.
B is the coterminal angle, and they have the same terminal,
And n is the number of integers.
Substitute the value of A in the equation,
B = 70 + n × 360°
Two angles are coterminal if they are drawn in the standard position and both have their terminal sides in the same location.
Since the value of n is equal to 0 then A = B,
Therefore, The angles coterminal with itself is called trivial.
Hence, The set of angles that has the same terminal arm as 70 degrees is B = B ∈ {70° + n*360°, n ∈ Z}.
To know more about Terminal Arm click the link given below.
https://brainly.com/question/20333574
On January 1st, the temperature at noon was 10.2℉. By midnight, the temperature had decreased by 13.5 degrees. What was the temperature at midnight?
Answer:
-3.3 degrees
Step-by-step explanation:
10.2-13.5+ -3.3
If 12 1/2% of a sum of money is $40, what is the total sum of money?
Answer:
i think its 320
Step-by-step explanation:
i looked it up
Answer:
320
Step-by-step explanation:
To find the total sum, divide the sum of money by the percentage.
12 1/2% = 0.125
40/0.125 = 320
If x =√63 and y = √24, what is the approximate value of x + y2?
Can someone answer this i need help
All that is needed to do is to simplify the expression.
The answer to your question is:
[tex]6 x^{6}[/tex] - [tex]10 x^{3}[/tex] + [tex]8x^{2}[/tex]
Hope I helped!
BIg Points big answer and explanations
Answer:
1/10
Step-by-step explanation:
We are hoping for 2 of the 20, and 2/20 simplified equals 1/10
C: 1/5 chance.
There are 20 possible outcomes, with 4 involving chicken and 4 involving ribs.
However, only 2 of each of those involves red sauce.
So the possibilities of getting a red sauce with chicken or ribs is 4.
4/20 = 1/5.
5xthe power of x...................
Answer:
[tex]5x^{x}[/tex]