Answer:
x = -0.8 and 10.8
Step-by-step explanation:
Given the equation x2 – 10x – 8= 0
Using the general formula
x = -b±√b²-4ac/2a
x = -(-10)±√(-10)²-4(1)(-8)/2(1)
x = 10±√100+32/2
x =10±√132/2
x = 10±11.489/2
x = 10-11.489/2 and 10+11.489/2
x = -1.489/2 and 21.489/2
x = -0.8 and 10.8
Angela is buying a dress that is on sale for 20% off. If the original price of the dress is $40.00, how much money is Angela saving on the dress?
A. $0.80
B. $8.00
C. $3.20
D. $32.00
Which of the following is equivalent to 3^4?
1. 12
2. 81
3. 7
4. 64
Answer:
81, Option 2.
Step-by-step explanation:
[tex]3^{4}[/tex] means 3 x 3 x 3 x 3, that is 3 multiplied 4 times with itself.
Here's how to do it:-
3 x 3 = 9
9 x 3 = 27
27 x 3 = 81
So, [tex]3^{4}[/tex] would be 81, Option 2.
Adam borrowed $5,600 from the bank. The bank charges 4.2% simple interest each year.
Which equation represents the amount of money in dollars, x, Adam will owe in one year, if no payments
are made?
Answer:
$235.2
Step-by-step explanation:
Given data
Principal= $5,600
Rate= 4.2%
Time= 1 year
The expression for the simple interest is given as
SI= PRT/100
substitute
SI= 5600*4.2*1/100
SI= 23520/100
SI=$235.2
Hence after 1 year he will pay $235.2
Solutions for y=-x^2-5x+12
Answer: y = -(x+5/2)^2+73/4
Step-by-step explanation:
6x + 3 + 4x = (9 + 10x)?x
Answer:
It has no solution.
Step-by-step explanation:
6x + 3 + 4x = 9 + 10x
10x + 3 = 9 + 10x
10x + 3 - 3 = 9 - 3 + 10x
10x = 6 + 10x
10x - 10x = 6 + 10x - 10x
0 ≠ 6
It has no solution.
What function is graphed below?
Answer:
C: y=cot(x+pi/4)
Step-by-step explanation:
Enter the value of p so that the expression 4(n + 8) is equivalent to (n + p)4.m
Answer:
8 is the value of p
Answer:
n=0 p=8
Step-by-step explanation:
Correct I’ll give brainlist no links or I’ll report
Answer:
[tex]y=10x\text{ or }y=10x+0[/tex]
Step-by-step explanation:
Slope-intercept form is given by [tex]y=mx+b[/tex].
Since Farmer Coraz purchases 10 items every month, he will have [tex]10\cdot x[/tex] items every [tex]x[/tex] months. Since he initially starts out with 0 items, at [tex]x=0[/tex], y is also equal to 0, and thus we have the final equation:
[tex]y=10x\text{ or }y=10x+0[/tex]
*Note: while slope-intercept form is [tex]y=mx+b[/tex], since the value of [tex]b[/tex] is 0, it is possible to omit it from the final equation and both answers should receive credit.
Find the area of each sector.
3)
1350
14 yd
251
A)
18051
12
yd?
B)
yd?
12
1471
C) 161 yd?
D)
yd?
2
Help .What is the measure of angle A?
Answer:
58
Step-by-step explanation:
PLEASE HELP AS SOON AS POSSIBLE SHOW WORK PLZ I NEED HELP
Answer:
D. (8.2, 24.3)
Stephen was thinking of a number. Stephen adds 2, then divides by 7 to get an answer of 11. What was the original number?
Answer:
75
Step-by-step explanation:
Let x = number thought of
(x + 2) / 7 = 11
multiply both sides of the equation by 7
11 x 7 = x+ 2
collect like terms
77 - 2 = x
x = 75
omg bet you don't know this
Answer:
2 and 5
Step-by-step explanation:
ez
The students who attend Memorial High School have a wide variety of extra-curricular activities to choose from in the after-school program. Students are 38% likely to join the dance team; 18% likely to participate in the school play; 42% likely to join the yearbook club; and 64% likely to join the marching band. Many students choose to participate in multiple activities. Students have equal probabilities of being freshmen, sophomores, juniors, or seniors.What is the probability of the intersection of being a junior and participating in marching band?
0.39
0.16
0.73
0.89
Answer:
0.16
Step-by-step explanation:
I took the test
Please help me... due today
Answer:
The answer is B. When we count to the left the second digit is tens place
please help! answer correct for 10 points and brainliest.
Answer:
14 square cm Should be the answer, plz do correct me if im wrong!!
Step-by-step explanation:
The right side which is triangle is 2x3 is 6 but because there is only half 6/2
it is 3!
Th middle portion which is square is 2 to the 4th power or 2x2x2x2 or just 2x4(2^4)!! Which is 8!
Finally the last triangle is the same as the first 3
8+6(the to triangles 3+3)=14
Mark brainliest plz, it was nice helping you if im wrong plz tell me immdiately i dont want to cause any problems good day ;)
Help me answer number 4
Answer:
45
Step-by-step explanation:
Can someone help me ?? I’ll give Brainliest
Answer: All I'm seeing is a blank screen I'm sorry can you try it again?
Answer:
nice black screen i like it
can someone please help me
Answer:
B
Step-by-step explanation:
its a right angle and one point is 40 as shown already so 90-40=50 hope this helps
So you would take your 90° angle which is the box on the bottom right hand corner and add 40° which would equal 130° and then you would subtract 180° -130° and you would get 50°.
What is the slope line?
Answer:
slope or gradient of a line is a number that describes both the direction and the steepness of the line.
write -5.6 x 10^-3 in standard form?
Answer:
-0.0056
Step-by-step explanation:
https://www.calculatorsoup.com/calculators/math/scientific-notation-converter.php
The function g(t)=−16t2+vt+h represents the height of an object, g, in feet, above the ground in relation to the time, t, in seconds, since the object was thrown into the air with an initial velocity of v feet per second at an initial height of h feet. A model rocket is launched off the ground at an initial velocity of 80 feet per second. Part A: Write a function that can be used to describe the flight of the model rocket. Part B:What domain makes sense for this function in context?
Answer:
A) g(t) = - 16*t² + 80*t
B) domain is ( 0 ≤ t ≤ 5 )
Step-by-step explanation:
A) for the model rocket
h = 0 and v = 80 feet/sec
Then the equation g(t) = -16*t² + v*t + h
became
g(t) = - 16*t² + 80*t + 0 g(t) = - 16*t² + 80*t
B) The equation g(t) = - 16*t² + 80*t is defined for all real numbers then the domain interval for t is ( -∞ , ∞ ). Now in our case, a model rocket was launched is not possible to get negative values for g(t) then the biggest value for t = 5 from
-16*t² + 80*t ≥ 0
-16*t ≥ -80 16*t ≤ 80
t ≤ 5
And the domain is ( 0 ≤ t ≤ 5 )
i need an ace to help me with math
Answer:
ace
Step-by-step explanation:
Giving brainliest for correct answer!
Answer:
10 7
20 14
30 21
Step-by-step explanation:
A survey asked first-year college students, "How many miles is this college from your permanent home?" Students had to choose from the following options: 5 miles or less, 6 to 10 miles, 11 to 50 miles, 51 to 100 miles, 101 to 500 miles, or over 500 miles. The bar chart below shows the percent of students at public and private 4-year colleges who chose each option.
Answer:
Students who attend a private college are more likely to travel a farther distance to attend college.
Step-by-step explanation:
11, 16, 12,7, 23, 9, 5, 5
What is the median of the data?
Answer: Median: 10
Step-by-step explanation:
Answer: 10
Step-by-step explanation: First you place the numbers in order from least to greatest (5,5,7,9,11,12,16,23) then you take away one from each side at a time so 5,23 then 5,16 etc. you end up with 9 and 11 left so you find the middle of 9 and 11 which is 10.
The plant produces 1200 packages of grapes. An inspector randomly chooses 24 packages and discovers that 8 of the packages have broken seals. What is the probability the package has a broken seal?
Answer:
8
Step-by-step explanation:
I really need help! it’s due soon:)
Answer:
(5, 5), (7, 2), (3, 2)
Step-by-step explanation:
When reflecting a figure across the y-axis, the x value will be the opposite and the y value will remain the same
reflection across y-axis:
(x, y) ---> (-x, y)
Hope this helps!!
Anyoneee pls I need help
Answer:
3
Step-by-step explanation:
As in the first set of numbers
4,5,2 are successes.
but in the next set of numbers
5 is right before a fail.
but then straight passes after that
Find the area of triangle ABC.
Answer:
ans no b if you will apply the formula
Step-by-step explanation:
i think it's no b
Answer:
222.33 ft^2
Step-by-step explanation:
The formula to find the area of a triangle with two sides and an included angle is:
A=[tex]\frac{1}{2}[/tex]absin(C),
where a and b are the two sides and C is the angle in between.
Area=[tex]\frac{1}{2}[/tex]*32*19*sin(47)≈222.33
222.33 ft^3