Answer:
x^2 + 2x - 15 = 0.
Step-by-step explanation:
If you mean the equation with zeroes of 3 and -5 it is:
(x - 3)(x + 5) = 0
x^2 + 2x - 15 = 0.
Let z = 5 – 9i and w = 6 + i.
Which expression shows the first step in finding the quotient of StartFraction z Over w EndFraction ?
StartFraction 5 minus 9 I Over 6 + I EndFraction times StartFraction 6 minus I Over 6 minus I EndFraction
StartFraction 5 minus 9 I Over 6 + I EndFraction times StartFraction 6 + I Over 6 + I EndFraction
StartFraction 5 minus 9 I Over 6 + I EndFraction times StartFraction 5 minus I Over 5 minus I EndFraction
StartFraction 5 minus 9 I Over 6 + I EndFraction times StartFraction 5 + I Over 5 + I EndFraction
Given:
[tex]z=5-9i[/tex]
[tex]w=6+i[/tex]
To find:
The expression that shows the first step in finding the quotient of [tex]\dfrac{z}{w}[/tex].
Solution:
According to the question,
[tex]\dfrac{z}{w}=\dfrac{5-9i}{6+i}[/tex]
First, we need to multiply and divide the conjugate of denominator, i.e., 6-i, to find the quotient.
[tex]\dfrac{z}{w}=\dfrac{5-9i}{6+i}\times \dfrac{6-i}{6-i}[/tex]
Therefore, the correct option is A.
Answer:
the answer is a
Step-by-step explanation:
edge 2020
If sale tax is 9% and you want to buy three t-shirts that cost $17.00 each, how much tax will you pay?
Answer:
$1.53
Step-by-step explanation:
Answer:
$55.59 TOTAL. So you pay $4.59 Tax
Step-by-step explanation:
The T-shirts price before any tax is $51 Then you add the 9% tax rate and get $55.59.
To get the BEFORE tax price I did 17*3 because the T-shirts are $17 and he wants 3 of them.
PLEASE MARK BRAINLIEST
Does (1,7),(1,6),(1,5),(1,4),(1,3) represent a function?
Answer:
No
Step-by-step explanation:
Convert the following equation to slope intercept form
4x – 9y = 8
Answer:
the answer is 20
The graph represents the speed at which Pete’s marble travels.
The speed of Stephano’s marble is represented by the equation f = 2.25s, where f is the distance in feet and s is the time in seconds.
Whose marble will reach the 6-foot mark sooner?
Answer:
B
Step-by-step explanation:
Here, we simply want to know who will reach the 6-foot mark sooner
Mathematically, we need to get the slope from the graph
Looking at the graph, we can see that the 3 ft mark was reached at exactly 2 seconds
So what this mean is that, in 4 seconds, the 6 ft mark will be reached
This makes up the fact that the speed for Pete’s travel is 1.5 ft/ secs
Now compare this with what Stephano has, which is 2.25 ft/ s
we can see that stephano is traveling at a better speed and will reach the 6 ft mark first
So the correct option is B
ILL MARK U BRAINLIEST!!
Answer:
1.)Sam Houston
2.)Mirabeau Lamar
3.)Sam Houston
4.)Mirabeau Lamar
Step-by-step explanation:
I just going by what makes since to me so yeah not 100% sure but I am sure
If g + 11 = 16, then evaluate 5g + 12
Answer:
37
Step-by-step explanation:
use inverse operations to solve ,
16 - 11 = g
g = 5
if g = 5 then , 5 times 5 is 25 , add 12 to 25 and get 37
*please name brainliest if you can :)
The value of the expression 5g + 12 is 37, when g equals 5.
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Substitution in mathematics is when we replace some specific numerical values to variables according to our wants or given in the problem.
Given A equation g + 11 = 16.
g = 16 - 11.
g = 5.
Now, 5g + 12
= 5×5 + 12.
= 25 + 12.
= 37.
learn more about equations here :
https://brainly.com/question/10413253
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The absolute value of opposite numbers is the same?
True or False?
Why or Why not
Answer:
false, it's the opposite so its doesn't have the same amount, negative or positive.
True.
The absolute value of opposite numbers is the same as the number because the absolute value is always positive.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Number = x
The opposite of x is -x.
Now,
The absolute value of -x.
= |-x|
= x
We are getting the number back.
Thus,
The absolute value of opposite numbers is the same as the number.
Learn more about expressions here:
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What is the decimal multiply to increase by 6.1%
Answer:
1.061
Step-by-step explanation:
not really sure if this is what you're looking for
Can someone graph this please
Answer:
Step-by-step explanation:
Answer:
You meant like this?
The school nurse told Sarah she was 1.4 meters tall. When she got home, Sara measured her height herself. Her measurement included a digit in the hundredths place. That digit had a value that is the value of the digit in the tenths place. How tall did Sara measure herself to be?
Answer:
1.44 meters
Step-by-step explanation:
Given that:
As per the nurse, height of Sarah = 1.4 meters
Let us have a look at the number and let us analyze each digit.
Here is only one digit after the decimal place which is the tenths place.
It is given that Sarah measured the height herself.
And also added a digit at the Hundredth place i.e. a digit after 4 will be added.
1.4_ --- In place of _ , a digit will be added.
As per the question statement, Digit at the Hundredth place will be equal to the digit at the Tenth's place.
Therefore, the height measured by Sarah herself will be equal to 1.44 meters.
The sides of a right triangle are (x-5) (x+2) (x+3). solve for x.
Can someone pls help me on this problem
Answer:
x = 10.
Step-by-step explanation:
The longest side , the hypotenuse = x + 3 because the lengths of the sides are positive.
So, by Pythagoras:
(x + 3)^2 = (x - 5)^2 + (x + 2)^2
x^2 + 6x + 9 = x^2 - 10x + 25 + x^2 + 4x + 4
0 = 2x^2 - x^2 - 10x + 4x - 6x + 29 - 9
x^2 - 12x + 20 = 0
(x - 10)(x - 2) = 0
x = 2, 10.
x cannot be 2 because that would make one side = 2- 5 = -3 so the answer is x = 10.
Martha Owens is paid $14.50
per hour for a regular forty-hour work
week. Her overtime pay is one-and-one-
half times her regular hourly rate. This
past week Martha earned S754.00 in total
рау. .
How many hours of overtime did
Martha work this pas week?
Answer:
Step-by-step explanation:
14.50*40=580 for reg pay
754-580=174 over time
14.50*1.5=21.75 an hour for ot
174/21.75=8 hours of overtime
Solve the following equation by combining like terms:
x +x +2 +3x- 6 = 31
Answer:
x=7
Step-by-step explanation:
We want to get the variable "x" alone to get our answer. So.
1. combine like terms
x+x+2+3x-6=31
like terms in equation: (left side)
x, x, 3x= 5x (equation: x+x+3x)
2, -6= -4 (equation: 2-6)
so, this is what the equation would look like with our new answers:
5x-4=31
2. add 4 to both sides
5x-4+4=31+4
(on left side of equation, the -4 and +4 cancel each other out, leaving the 5x alone)
5x=35
3. divide 5 from both sides, to get the "x" alone
5x/5=35/5
so, our answer would be:
x=7
I hope this was helpful :)
What is a simple way to tell that −2 1/5 is not the slope of this graph?
Answer:
The last one is an easy way to tell that the slope is not -2 1/5 because it is positive
Step-by-step explanation:
When a line goes up from left to right, it's positive. If it goes down from left to right, it's negative.
Which of the ordered pairs are functions
Hint: there are more than one
15 points or brainlist
THERE MORE THAN ONE?
Answer:
A, C, D, i think :D
Graph the following inequality:
Answer: the intercept is love , the slope is you , dotted or solid is <3
Step-by-step explanation:
PLEASEEEEEEE HELPPPPPP ASAPPPP
Answer:
C
Step-by-step explanation:
What is the length of BC?
A) 9 units
B) 11 units
C )15 units
D) 16 units
Answer: d
Step-by-step explanation:
Stay safe have a good day
Answer:
C. 15 units
Step-by-step explanation:
If this is a late answer, I'm very sorry. However I hope that others may find this helpful :)
PLEASE HELP IV ASKED A MILLION TIMES!!!!! ASAP WITH BRAINLIEST!!!!!!!!!
Are the triangles APB and APR similar? Explain in terms of the following:
Corresponding angles and Parallel lines cut by a transversal
AA Criterion
Answer:
yes
Step-by-step explanation:
Please give me brainleist
The thickness of a block is approximately 2 centimeters. How many blocks are in a stack that is 1,000 millimeters high? ( 1 cm = 10 mm ) Use proportions. Help please with explanation thank you!!
Answer:
50 blocks
Step-by-step explanation:
First of all, you need to label you're proportions, which can be mm/blocks.
Then, for 1 block, it is 20 mm because the block is 2 cm, which is equal to 20 mm. So for you're proportion, it is 20 mm/1 block.
Finally, you need to find the total amount of blocks that equals 1000 mm. So you can multiply the 20 mm by 50 to get the 1000 mm. What you do at the top, you do at the bottom, so you also have to do 1 block by 50 to get 50 blocks
So for you're final answer/proportion, it is mm/blocks = 20/1 = 1000/50 and you're final answer is 50 blocks
Hope this helps : )
Pls help I need a good grade I will brainlest
Answer:
1 1/3
Step-by-step explanation:
We simplify it into 3 1/6 - 1 5/6.
Since 5 cannot subtract from 1, we convert 3 1/6 into 2 7/6 because it is equivalent to 3 1/6, and subtract 1 5/6 from that fraction to get 1 1/3.
Alina spent no more than $45 on gas for a road trip. The first gas station she used charged $3.50 per gallon and the second gas station charged $4.00 per gallon. Which inequality relates the number of gallons of gas she bought at the first station, x, the number of gallons of gas she bought at the second station, y, and the total amount she paid? What are the possible values of y? 3.5x + 4y ≥ 45, y ≥ 11.25 3.5x + 4y ≥ 45, 0 ≤ y ≤ 10.375 3.5x + 4y ≤ 45, 0 ≤ y ≤ 11.25 3.5x + 4y ≤ 45, y ≥ 10.375
Answer:
your answer is going to be :
Step-by-step explanation:
C. 3.5x + 4y ≤ 45, 0 ≤ y ≤ 11.25
Answer:
c
Step-by-step explanation:
a package of 36 photos costs $18. how many does it cost per photogragh
Answer:
$0.50
Step-by-step explanation:
This is a simple equation. All you need to do is divide 18 by 36.
18/36 = 0.5
Answer:
$0.5
(50 cents)
Step-by-step explanation:
Just divide how much it costs (18) by the number of items bought (36) and you'll find how much it costs per-item.
$18 ÷ 36 = $0.5
So $0.5 (50 cents) is your answer.
Hope this helps and have a nice day!
The Scott family is trying to save as much money as possible. One way to cut back on the money they spend is by finding deals while grocery shopping; however, the Scott family needs help determining which stores have the better deals.
At Grocery Mart, strawberries cost $2.99 for 2 lb., and at Baldwin Hills Market strawberries are $3.99 for 3 lb.
What is the unit price of strawberries at each grocery store? If necessary, round to the nearest penny.
Grocery Mart:
$_________
Answer:
Unit Price at Grocery Mart = $1.50
Unit Price at Baldwin Hills = $1.33
Step-by-step explanation:
Unit price in this case will be the price divided by number of pounds
Let u1 be the unit price of Grocery Mart and u2 be the unit price at Baldwin Hills
Given
[tex]s_1 = 2.99\\w_1 = 2\\s_2 = 3.99\\w_2 = 3[/tex]
The unit price for Grocery Mart is:
[tex]u_1 = \frac{s_1}{w_1}\\= \frac{2.99}{2}\\= 1.495[/tex]
Rounding off to nearest penny
u1 = $1.50 per lbs
Unit price for Baldwin Hills is:
[tex]u_2 = \frac{s_2}{w_2}\\=\frac{3.99}{3}\\=1.33[/tex]
u2 = $1.33 per lbs
Hence,
Unit Price at Grocery Mart = $1.50
Unit Price at Baldwin Hills = $1.33
What is math ?
Please answer in your own opinion I don’t care if it’s a dumb answer or a smart answer this is more of a survey type question it’s for an assignment
Answer:
math is basically how to understand
Step-by-step explanation:
Answer:
Math is a way to view numbers in a more unique and special way. Many people might not like it because they consider it difficult.
Step-by-step explanation:
Harry buys a TV priced at £1200 plus 20% VAT. He pays £300 deposit and the balance in ten equal monthly payments. Calculate each monthly payment. please explain fully in parts.
Answer:
114 monthly payment
Step-by-step explanation:
1200 + 20%= 1440 (20% of 1200 equals 240)
the VAT has to be added to the purchase price.
1440 is the total price he had to pay for the tv.
he pays 300 down. 1440-300 = 1140
1140 is the remaining balance he had to pay over the next 10 month.
1140 ÷ 10 = 114
divide 1140 by 10 payments and you receive you monthly payment amount. 114
A local deli sells 4-inch sub sandwiches for $2.95. It has decided to sell a "family sub" that is 50
inches long. How much should it charge?
The deli should charge $ ?
Answer:
36.875
Step-by-step explanation:
Elizabeth uses 234 cups of flower in waffle batter. If she wants to triple the recipe, how many cups of flower will she need?
Answer: 702
Step-by-step explanation:
234 • 3 = 702
702
Step-by-step explanation:
If you triple 234, you get 702. In other words you do 234x3.
Which equation is equal to y=x^2+24x-18
Answer:
(X+12)^2 -18-(24/2)^2
(X+12)^2 -18-144
(X+12)^2-162
Your answer is 1.
Step-by-step explanation:
Answer:um hold on
Step-by-step explanation: