Answer:
The option d is the correct answer
Which equation shows an example of the associative property of addition? (–4 + i) + 4i = –4 + (i + 4i) (–4 + i) + 4i = 4i + (–4i + i) 4i × (–4i + i) = (4i – 4i) + (4i × i) (–4i + i) + 0 = (–4i + i)
A. (–4 + i) + 4i = –4 + (i + 4i)
Step-by-step explanation:
edge2020
Have a great day y'all :)
(–4 + i) + 4i = –4 + (i + 4i) is the associative property of addition. Thus, option A is correct.
What is the associative property of addition?According to the associative property of additionally, whenever at least three figures are added together, the outcome is unaffected by the sequence in which the individual numbers are added.
In the first given condition is is stated:
(–4 + i) + 4i = –4 + (i + 4i)
-4 + i + 4i = -4 + i + 4i
5i - 4 = 5i - 4
As the LHS = RHS, the property is said to be valid for the associative property of addition.
Therefore, option A is the correct option.
Learn more about associative property of addition, here:
https://brainly.com/question/28762453
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Which equation shows an example of the associative property of addition?
(–4 + i) + 4i = –4 + (i + 4i)
(–4 + i) + 4i = 4i + (–4i + i)
4i × (–4i + i) = (4i – 4i) + (4i × i)
(–4i + i) + 0 = (–4i + i)
Coach De Leon purchases sports equipment. Basketballs cost $20.00 each, and soccer balls cost $18.00 each. He had a budget of $150.00.
Answer:
18s+20b<_150
Step-by-step explanation:
He can buy 5 basketballs and 2 soccer balls. This equation is correct because 18x2 is 36 and 20x5 is 100. So that will be a total of $100. This makes the equation 100<_150. You can infer that this equation is true.
0.3d-1/3=0.84:7/15 if this my real number and giving 25
Answer:
skp
Step-by-step explanation:
write a ratio that is equivalent to 8:6
Answer:
4/3
Step-by-step explanation:
Answer:8 : 6 16 : 12 24 : 18 32 : 24 40 : 30
Step-by-step explanation: There all equivalent
Can someone please help me on this, this is really confusing
Answer:
my educated guess would be B. i hope i dont get u the wrong answer
Step-by-step explanation:
Answer:
I think A
Step-by-step explanation:
I am not sure but if u multiply 7x7 u get 49 and when u do 9x7 it gets u close to 65 that is my guess
HELPPP ASAP WILL MARK BRAINLEST!!!
Answer:
B
Step-by-step explanation:
Eagles | Frequency
0-4 4
5-9 5
10-14 3
15-19 2
What part of slope-intercept form is the rate of change"?
Answer: y=mx +b is the equation for slope intercept form. y = the output of the equation m = the slope x = the input into the formula b = the y-intercept The slope represents the rate of change.
Step-by-step explanation: mark me brainliest
Please help me!:)Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.
Enter the correct answer
Answer:
it might be 2/1
Step-by-step explanation:
first u do rise over run- u find the spot on the x axis that goes through the x axis line, and then u rise up until u reach other spot that is going through on the end point and then u run right because its a positive number and u go right however many until u reach that end point, i hope that makes some sense
I need to know the slope and y-intercept of lines
a. y=5/3x - 4
b. y= -4/7x + 3
c. y= -5
Answer:
1. -4
2. 3
3. -5
Step-by-step explanation:
5/3x and -4/7x is the x-intercept and then the third one has no x-intercept making -5 the y-intercept
The school carnival committee sold a total of 200 tickets for the grand prize drawing. Sue bought enough tickets so that she had a 20 percent chance of winning the grand prize. How many tickets did Sue buy?
Answer:
40 tickets
Step-by-step explanation:
Given that:
Total tickets sold = 200
Sue's chances of winning = 20% = 0.2
Number of tickets bought by Sue :
P(winning) = 20%
P(winning) = required outcome / Total possible outcomes
Required outcome = number of tickets bought by Sue
Total possible outcomes = total number of tickets sold
0.2 = x / 200
x = 0.2 * 200
x = 40
The table below shows a person saving money at a constant rate. How much is the person saving per week?
Answer:
$30 per week
Step-by-step explanation:
Find the value of x. geometry
Answer:
21 or 26
Step-by-step explanation:
Find the distance between (8,-2) and (-2,6)
What is 1 2/3 - 2 1/3
Answer:
-1 1/3
Step-by-step explanation:
1 2/3 - 2 1/3
1-2 is -1
2/3 -1/3 is 1/3
-1 1/3
What is the slope of a line that passes through the points (-8, 14) and (4,-4)?
Answer:
the answer is -3/2
Step-by-step explanation:
Trust me its correct
pls mark me as brainliest
Explain the Error Tina says that 6 :8 is equivalent to 36 :64. What did Tina
do wrong?
Answer:
she multiplied the numbers to itself
Find the 13th term of the geometric sequence 6, -30,150
Answer:
a₁₃ = 1 464 843 750Step-by-step explanation:
[tex]a_1=6\\a_2=-30\\a_3=150\\\\\dfrac{a_2}{a_1}=\dfrac{-30}{6}=-5\quad\wedge\quad \dfrac{a_2}{a_2}=\dfrac{150}{-30}=-5\quad\implies\ \ q=-5\\\\\\a_n=a_1\cdot q^{n-1}\\\\a_{13}=a_1\cdot q^{12}=6\cdot(-5)^{12}=6\cdot244140625=1464843750[/tex]
3x - 2y = -1
x +y = 3
1) enter a,b,c,d
2) enter var1,var2
3) enter sol1,sol2
4, enter q,r,s,t
solving system matrix
Answer:
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Step-by-step explanation:
Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and large
cups for $2.50. If Ashley sold a total of 155 cups of lemonade for $265, how many cups of each
type did she sell?
Answer:
3.75
Step-by-step explanation:
find the answer to this question
4.2÷0.07
Answer:
60
Step-by-step explanation:
Make 4.20 to 420
Make 0.07 to 7
We do this so they can be whole numbers not decimals. (also because it is easier)
420÷7=60
60
I hope this helped! :)
Find the slope!! Please
Answer: The slope is undefined
Step-by-step explanation:
Answer:
undefined
Step-by-step explanation:
slope equation is y2-y1/x2-x1
use points (-2,2) and (-2,-2)
insert values into equation: -2-2/-2+2
simplify: -4/0
if the zero is on top of the fraction, then the slope is zero but since the zero is on the bottom, the slope has to be undefined
what is the point-slope form of a line that has a slope of -4 and passes through point (-3, 1)
a. y-(-3) = -4(x-1)
b. y-1 = -4[x-(-3)]
c. -1-y1 = -4(-3-x1)
d. 3-y1 = -4(1-x1)
What is the x intercept for the following equation? Enter your answer in the format (x,y)
-1/4x-1/3y=13
marias mother told her to go to the health food store and buy 10 pounds of apples each bag weighed 5 pounds and contained 15 apples how many apples would she have if she bought the 10 pounds her mother instructed her to buy
Answer:
30 apples
Step-by-step explanation:
10 pounds of apples is 2 bags
5 + 5 = 10 lbs
15 apples per bag x 2 bags = 30 apples
Hope this helps :)
A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 95% confidence interval that results from examining 771 customers in one fast-food chain's drive-through has a lower bound of 175.2 seconds and an upper bound of 178.2 seconds. What does this mean?
Answer:
Step-by-step explanation:
The confidence interval is an interval that determines an unknown population parameter. It showcases the probability that a particular population parameter will fall within this interval. As the sample size reduces, the width of the confidence interval usually increases.
What the given question mean is that one can still be 95% confident that the mean drive-through service times of this fast-food chain is between 175.2 seconds and 178.2 seconds.
HELPPPPP!! A juggler tosses a ball into the air. The ball leaves the juggler's hand 5 feet above the ground and has an initial velocity of 30 feet per second. The juggler catches the ball when it falls back to a height of 2 feet. How long is the ball in the air? Use the model h(t)=−16t2 +v0t +h0, where v0 is the initial velocity (in feet per second), h is the height (in feet), t is the time in motion (in seconds) and h0 is the initial height (in feet).
Remember to round your answer to the nearest hundredth.
Answer:
t = 2.525 seconds
Step-by-step explanation:
h(t) = -16t^2 + v*t + h0 h(t) = the height above the ground after t seconds v = 40 ft/s initial velocity h0 = 4 ft the initial height of the object (the ball) t = the time of the motion h(t) = -16t^2 + 40*t + 4 we need to find t such that h(t) = 3 ft 3 = -16t^2 + 40*t + 4 -16t^2 + 40*t + 4 = 3 by solving we find
t = 2.525 seconds
You can round on your own.
Solving the quadratic equation, it is found that the ball was in the air for 1.97 seconds.
The height of the ball, in feet, after t seconds is given by:
[tex]h(t) = -16t^2 + v(0)t + h(0)[/tex]
In this problem:
The initial velocity is [tex]v(0) = 30[/tex].The initial height is [tex]h(0) = 5[/tex].Thus, the equation is:
[tex]h(t) = -16t^2 + 30t + 5[/tex]
The juggler catches the ball when it falls back to a height of 2 feet, thus it stays in the air until t for which:
[tex]h(t) = 2[/tex]
Then:
[tex]2 = -16t^2 + 30t + 5[/tex]
[tex]-16t^2 + 30t + 3 = 0[/tex]
[tex]16t^2 - 30t - 3 = 0[/tex]
Which is a quadratic equation with coefficients [tex]a = 16, b = -30,c = -3[/tex]. Then:
[tex]\Delta = b^2 - 4ac = (-30)^2 - 4(16)(-3) = 1092[/tex]
[tex]x_{1} = \frac{30 + \sqrt{1092}}{2(16)} = 1.97[/tex]
[tex]x_{2} = \frac{30 - \sqrt{1092}}{2(16)} = -0.1[/tex]
The ball stays in the air for 1.97 seconds.
A similar problem is given at https://brainly.com/question/21846193
Liane is sewing new curtains for her bedroom She Bought 3 yards of fabric Her total cost was $12. What was her cost per yard?
Answer: $4 per yard
Step-by-step explanation:
From the question, we are informed that Liane is sewing new curtains for her bedroom and that she bought 3 yards of fabric and her total cost was $12.
Her cost per yard will be the amount she bought the fabric divided by 3. This will be:
= $12 / 3
= $4 per yard
6500x0.93 divide by 12
Answer:
503.75
Step-by-step explanation:
all you do is multiply then divide the product by 12
ILL MARK U BRAINLIEST!!!
Answer:
Step-by-step explanation:
B
What is angle A in the following equation?
Answer:
55 i think
Step-by-step explanation:
