Answers
Related Questions
Decide whether this statement is always true, never true, or sometimes true, and explain why: In a quadratic equation of the form 0 = ax2 + bx + c, there will be two real solutions if a and c are of opposite signs
Answers
Answer:
Always true
Step-by-step explanation:
Here, we want to evaluate if the given statement is true
The discriminant D can be calculated using the formula;
b^2 - 4ac
if D is greater than 0, then we will have only real roots
In a case where a and c are of opposite signs;
then -4ac will always give a positive value which can be added to b^2
This positive value will ensure that D is greater than zero and hence we can have only real roots
So this assertion is always true if a and c are of opposite signs
1 and 2 plz help me im nice:)
Answers
Answer:
1. 13
2. 28
Step-by-step explanation:
hope this helps
If the scale on a map is inches /miles = 1 /10, find the following actual distances.
a. 2 inches b. 1/2 inches c. 3.5 inches
Answers
Answer:a-20miles
b-5miles
C-35 miles
Step-by-step explanation:
):
For the complex number z = 12 + i, what is Modifying above z with bar?
12 – i
12 + i
–12 – i
–12 + i
Answers
Answer:
its A (12-i)
Step-by-step explanation:
got it right on edge 2020
The complex number with modifying bar will be 12 - i so option (A) will be correct.
What is a complex number?Complex numbers are helpful in finding the square root of negative numbers.
A complex number is the sum of a real number and an imaginary number.
The general form of a complex number is a + ib where the first part a called real and the ib is called imaginary.
If we solve x² + 1 = 0 ⇒ x = √(-1) which is called as iota(i).
Bar of complex number = replace i (iota) with - i (iota)
since z = 12 + i
So,
z bar = 12 - i
So 12 - i will be the correct answer to the given question.
To learn more about complex numbers,
brainly.com/question/10251853
#SPJ2
A piece of climbing equipment at a playground is 6 feet high and extends 4 feet horizontally. A piece of climbing equipment at a gym is 10 feet high and extends 6 feet horizontally. Which statement best compares the slopes of the two pieces of equipment?
Because Five-thirds greater-than three-halves, the slope of the climbing equipment at the gym is greater.
Because Five-thirds less-than three-halves, the slope of the climbing equipment at the playground is greater.
Because Three-fifths greater-than two-thirds, the slope of the climbing equipment at the gym is greater.
Because Three-fifths less-than two-thirds, the slope of the climbing equipment at the playground is greater.
Answers
Answer:
I think its D but I'm not that sure about it.
Step-by-step explanation:
Because three fifths less than two thirds, the slope of te climbing equipment at the playground is greater.
Answer:
A)
Step-by-step explanation:
A piece of climbing equipment at a playground is 6 feet high and extends 4 feet horizontally.
Therefore its slope = length of the equipment vertically / length of equipment horizontally
= 6/4 = 3/2 = 1.5
And, A piece of climbing equipment at a gym is 10 feet high and extends 6 feet horizontally.
Therefore slope, = 10/6 = 5/3=1.67 (approx)
Since, >
Therefore, Five-thirds greater-than three-halves, the slope of the climbing equipment at the gym is greater
(I finished the quiz and got it correct, it is A.)
PLEASE HELP ME!! THANK YOU!!
Answers
9514 1404 393
Answer:
[-4,3]
Step-by-step explanation:
The domain is the left-right (horizontal) extent of the function. The dots at the end of the continuous line are solid, so the brackets on the interval are square brackets.
The left dot is at x=-4; the right dot is at x=3, so the domain is ...
[-4,3]
Does anyone know know the correct answer?! Please help! If the answer is correct ill mark you as the best!
Answers
Answer:
D)
Step-by-step explanation:
In slope-intercept form in order to find the perpendicular equation you change the sign and find its reciprocal.
So in the equation y= -3x+1, the opposite sign of - is + and the opposite of 3 is 1/3
Explain your reasoning for how you got true or false ?!
Is ABD congruent to CBD?
Please help! I’ll give brainliest!!
Answers
2.
NEED HELP ASAP‼️‼️‼️‼️‼️ What is the slope of the line that passes through the points (-6, 1) and (3, 7)?
Answers
Answer:
c. 2/3
Step-by-step explanation:
To find the slope, you subtract y^1 from y^2 and divide it by x^2 - x^1
Our y^2 is 7 and our y^1 is 1.
7-1 = 6
Our x^2 is 3 and our x^1 is -6.
3 - (-6) = 3+ 6 = 9
so our slope is 6/9, reduced is 2/3
I hope this helped, please mark Brainliest, thank you!!
Marvin rides his bike at an average speed of 13 miles per hour. How far can he bike in 8 hours?
Marvin can bike miles in 8 hours.
Answers
Answer:
104
Step-by-step explanation:
13x8=104
10 employees only eat
vegetables and 25 employees
eat meat. What is the ratio of
the employees who only eat
vegetables to employees who
eat meat?
Answers
Answer: the ratio 2:5
Step-by-step explanation:
I think thats the answer,
steve jobs sells apples and gets paid a minimum weekly salary of $660. He also gets paid on a graduated commission scale. He gets 4% of the first $2000 and 6% of anything over $2000. How much would he earn if he sold $15,000 worth of apples last week?
A. 1520
B. 1500
C. 640
D. 660
Answers
Answer:
Step-by-step explanation:
660 flat salary
2000*4%= 80
13000*6%=780
660+80+780= 1520
Answer:
660+80+780= 1520
Step-by-step explanation:
Hope that helps
lemme know
Plz help with this question and show explanation thanks
Answers
Answer:
4x^4yz^2(3-2xy^2)
Step-by-step explanation:
take common fitst
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]12 {x}^{4} y {z}^{2} - 8 {x}^{3} {y}^{3} {z}^{2} [/tex]
Factoring 4x³yz²
[tex]4 {x}^{3} y {z}^{2}(3x - 2 {y}^{2} )[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The angle measurements in the diagram are represented
by the following expressions.
ZA= 63 - 189
ZB = 142 + 38°
Solve for x and then find the measure of ZA:
Answers
Answer:
∠A = 30°Step-by-step explanation:
∠A + ∠B = 180
where ∠A = 6x - 18
∠B = 14x + 38
first step is to solve for x:
6x - 18 + 14x + 38 = 180
6x + 14x = 180 + 18 - 38
20x = 160
x = 160 / 20
x = 8
now substitute x=8 into angle A
∠A = 6x - 18
∠A = 6(8) - 18
∠A = 30°
Need help fast with my work
Answers
Answer:
-25
Step-by-step explanation:
3. A merchant sold a pen for $6.90, thereby making a profit of 15% on the cost to her. Calculate:
a. the cost price of the pen to the merchant to the nearest cent.
b. the selling price the merchant should request in order to make a 25% profit instead.
Answers
Answer:
A.$6.44
B.$8.05
Step-by-step explanation:
A.$6.90/15%=$0.46-$6.90=$6.44
B.$6.44*25%=$1.61+$6.44=$8.05
Answer:
answer for 6.90/15%= 6
answer for 25%= 7.5
Step-by-step explanation: These are answer is all correct there are no mistakes
(06) A paper is in the form of a
square of side 20m. Semicircles are
drawn inside the square paper
on two sides as diameter. The
semicircle portions are cut off.
Find the area of remaining
paper. (use π = 3.14).
Answers
Answer:
86 sq.m
Step-by-step explanation:
Find the slope of the line passing through the given points using the slope formula. Describe the slope as positive, negative, zero, or undefined.
(−7, −18) and (−7, −4)
Answers
Answer:
Undifined
Step-by-step explanation:
PLEASE HELP IVE BEEN WORKING SO LONG ON THIS
Answers
Answer:
Part A The 4th bubble y= -55x+1630
Part B 1630
Part C 55
Step-by-step explanation:
Part A Use slope to find answer. In this example, points (1,599) and (4,1430).
Next use equation y1-y2/x1-x2. In this example, 1599-1430/1-4 which equals 169/-3 and that equals -56.3333333333333333333333. Since y= -55x+1630 is closer, choose that answer.
Part B use y intercept. The y intercept is 1630
Part C Use the slope -55. It decreases by 55.
Find the greatest common factor between 18 and 60? Help me or I die.....Jk help me plz
Answers
Step-by-step explanation:
I dont know the answer exactly but to find the greatest common factor you have to find out like the numbers that go into the timetable your talking about like e.g a factor of 18 would be 6,3,2 etc. once you have done that between both of them then you have to find the same numbers between them. and that's the answer. hope it helped I'm not exactly good at explaining
Little Tricky think outside of the box: The sum of the measures of the complement and the supplement of an angle is 114. What is the measure of the angle?
A 12
B 66
C 78
D 102
Answers
Answer:
B
Step-by-step explanation:
Hhhhhhhhhccjcjckvjvjvkvkv
P is a rectangle with a length of 40cm and a width of x cm.
Q is a rectangle with a width of y cm.
The length of Q is 25% more than the length of P.
The area of Q is 10% less than the area of P.
Work out the ratio x : y.
Give your answer in its simplest form.
Answers
Answer；
By simply calculating, using the length and width with the relationship given, it's solved.
25:18
Step-by-step explanation:
see the graph↑
Hope this one can help you!!
Write the equations for the lines parallel and perpendicular to the given line j that passes through Q.
• y = - 4x + 1; 0(6, -1)
• 3x - 2y = -8; Q(1,- 1)
• y - 2 = 1/2 (x + 2); Q(1, -1)
Answers
Answer:
the third option
i think this is right but I could be wrong, sorry.
3x(x-2)-x^2+4=0
Help
Answers
Answer:
x=2,1 solving with quadratic formula
Step-by-step explanation:
You work 4 hours on Monday, 4.5 hours on Tuesday, 7.25 hours on Thursday, and 12 hours on Saturday. If you get paid $11.52 per hour, what is your total pay for the week
Answers
Answer:
$319.43
Step-by-step explanation:
Monday= 4 * $11.52= $46.08
Tuesday= 4.5 * $11.52= $51.84
Thursday= 7.25 * $11.52= $83.27
Saturday= 12 * $11.52= $138.24
When you add all of those together you get $319.43
hope this helped (:
(this took so long so this better be right...<3)
Two parallel lines are cut by a transversal. Which statements are true for all such cases? Select three that apply.
Each pair of vertical angles is congruent.
Each pair of corresponding angles is congruent.
Each pair of supplementary angles is congruent.
Each pair of alternate interior angles is congruent.
Answers
Answer:
Step-by-step explanation:
Each pair of vertically opposite angles are equal. If you mean vertical angles as in 90 degrees, you should qualify the question
Each pair of alternate interior angles is congruent (think it should be are congruent).
Each pair of corresponding angles is congruent
If the domain for
f (x) = 3x + 2 is
{-2,4,7}
What is the range?
Answers
Answer:
{8,14,-19}=R
..................
-2 (-3x + 3) + 2x = 58
Answers
Answer:
x = 8
Step-by-step explanation:
Given
- 2(- 3x + 3) + 2x = 58 ← distribute and simplify left side
6x - 6 + 2x = 58
8x - 6 = 58 ( add 6 to both sides )
8x = 64 ( divide both sides by 8 )
x = 8
Hello help with question please :)
Answers
Answer:
A
Step-by-step explanation:
slope is (y2-y1)/(x2-x1)
anyhow that comes out to -3/2
the only place that actually applies is in A
Answer:
A
Step-by-step explanation:
6=-3/2×-2+3
6=3+3
6=6
-3=-3/2×4 + 3
-3=-6+3
-3=-3
if you use synthetic division for this polynomial: 3x^5-12x^4+12x^3+30x^2-39x-42. What would the answer be?
Answers
Answer : x^5 - 4x^4 +4x^3 + 10x^2 - 13x - 14
Explanation :
(3x^5-12x^4+12x^3+30x^2-39x-42)/3 = x^5 - 4x^4 +4x^3 + 10x^2 - 13x - 14