Answer:
96 because 3.20 divided by 8 is 0.4 and 0.4 times 96 is 38.4
Given a quadratic equation px^2 + 8x + 2 does not have real roots. Determine the range of the values of p.
[4 marks]
Step-by-step explanation:
For a quadratic equation to have no real roots, the discriminant b² - 4ac must be negative.
For px² + 8x + 2 = 0,
We have a = p, b = 8 and c = 2.
=> (8)² - 4(p)(2) < 0
=> 64 - 8p < 0
=> 8p > 64
=> p > 8
Hence the range for p is p > 8.
4|m-n|
If m=-7 and n=2
The sum of two numbers is 25. Twice the first number minus the second is 6. Find the numbers.
Answer:
Step-by-step explanation:
x + y = 25
2x - y = 6 Solve for y in this the second equation. Add y to both sides
2x = 6 + y The ys on the left cancel. Subtract 6 from both sides.
2x - 6 = y
Put this value of y into the first equation
x + y = 25
x + 2x - 6 = 25 Combine on the left
3x - 6 = 25 Add 6 to both sides.
3x = 25 + 6 Combine the right
3x = 31 Divide by 3
x = 31 / 3
x = 10.333333
x + y = 25
10.33333 + y = 25 Subtract 10.33333
y = 25 - 10.333333
y = 14.666666
x + y = 25
10.33333 + 14.66666
25 approximately.
2x - y = 6
2*10.33333 - 14.66666
20.66666 - 14.66666
6
You should note that those numbers are repeating decimals
2x - 6 = y
Matthew buys 13 uniforms for the baseball team. He pays $455 in total. What ratio shows the relationship of price to uniforms?
2Points
Select 2 possible answers.
Remember to reduce the ratio by the GCF
A
1 to 13
B
35 to 1
C
13 to 455
D
455 to 13
Answer: 35:1
Step-by-step explanation:
Glad I could Help :)
margarite owns a boutique. she sells her jewelry at a 30% markup. if she buys a bracelet for $22, what would she sell it for after the markup?
i need le help...if u have 25 pieces of gum and you got 7 more pieces then subtracted 3 and added 16 what would it equal Im to tired and my brain hurts from the test to figure it out
Answer:
45
Step-by-step explanation:
25 plus 7 is 32
32 minus 3 is 29
29 plus 16 is 45
hmmm well that's a lil too hard for my smol brain to process but hmmm well when I think about it, it really gets my brain thinking and ummm well you see it's uh hmm you add the yeah to that and hmmmm well ahhh that looks to be about right uuuuuuuuuh
45....
.....or is it?
hmmmmmmmmmmmmmmm
Christina needed 8 pounds of flour to make cookies that will
serve 44 people. How many pounds of flour will Christina
need to feed 66 people?
Answer:
12
Step-by-step explanation:
4 pounds is 22 people
8 is 44
12 is 66
y = -x + 3
What is the slope for this?
Point N is on line segment ABGiven AN = 14 and NB =21. Determine the length of the line AB.
Find the output y, when the, x, is 2 Y=
Answer:
y = - 2
Step-by-step explanation:
Locate x = 2 on the x- axis, go vertically down to meet the graph at (2, - 2 )
Then when x = 2, y = - 2
Answer:
According to the above graphical figure it is found that,
When the input value of x is 2, output value of y is -2.
Location on the graph → (2,-2).
y=-2 is the right answer.Which expression is equivalent to the measure of 24 in the image below?
5
6
3
1
2
4
7= -5x
Select one:
O1. Multiply each side by 5.
O2. Multiply each side by -5.
O3. Multiply each side by 1/5.
04. Multiply each side by -1/5.
Please help me with this equation, you are supposed to find x
Answer:
Step-by-step explanation:
[tex]\frac{3}{4}(x+21) =10\frac{1}{2} \\x+21=14\\x=-7[/tex]
this is my answer x= -7
Write the equation of a line through (-1,-5) parallel to 3x-y=5, and in slope intercept form
Answer:
y =3 x
Step-by-step explanation:
The standard equation of a line in point slope form is expressed as;
y -y0 = m(x-x0)
m is the slope
(x0, y0) is the point on the line
Given the line 3x - y = 5
Get the slope
- y = -3x + 5
y = 3x - 5
Slope m = 3
Substitute m = 3 and (-1, -5) into the given formula
y - (-5) = 3(x-(-1))
y+5 = 3(x+1)
y + 3 = 3x+3
y = 3x + 3 - 3
y = 3x
Hence the equation in slope intercept form is y =3 x
Which angle number is adjacent to angle to ZOKL?
Answer:
there aint no picture
Step-by-step explanation:
Destiny types 20,420 words in 5 minutes. How many words does she type per minute?
Answer:
4084
Step-by-step explanation:
20420/5=4084
Answer:
4084 words.
Step-by-step explanation:
If Destiny types 20,420 words in 5 minutes, then she types 20,420 divided by 5 words in 1 minute.
20,420/5 = 4084
Destiny types 4084 words in 1 minute.
Let me know if this helps!
3x + x - 7 = 10
What does x=
First you add 3x+x because they are like terms.
3x+x-7=10
Your New Simplified Equation:
4x-7=10
Now, you have to take out the -7 by adding a positive 7. Also you have to add +7 on the other side so add 7 to 10.
Your New Simplified Equation:
4x=17 Now, you divide both sides by 4.
Your New Simplified Equation:
x= 17/4 So, that's your answer :)
Help please! i have gymnastics soon
Answer:
A)
Step-by-step explanation:
What is 33127 rounded to the nearest 100
Answer:
33127 rounded to the nearest 100 is 33100
Step-by-step explanation:
Answer:
33100
Step-by-step explanation:
the numbers themselves dont go over 50
since its 27 its at tens are 2
we need a five to go over
therefore it doesnt
round up it stays at 100
use this answer hope it helped !
5+4−6=24 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
its false
Step-by-step explanation:
5+4-6=24
9-6=24
3=24 3 does not equal to 24 so its false
{(4,7),(2,5),(6,0),(4,_)} If this is a relation
is a function, then what number must
fill in the blank?
Answer:
Ans: The number will be six (6)
Solve for x. Will mark brainliest for the correct answer.
Answer:
x= 100 degrees
Because the angles are vertical
8. 0.399 + w = 0.4
Please help!
Answer:
w = 0.001
Step-by-step explanation:
please help i’ll give you brainlest pleas
Answer:
20°,40°,75°
Step-by-step explanation:
Subtract the number from 90 and turn the difference to a degree
y=x+4
2x+3y=17
SOLVE USING SUBSITUTION
Show work
Answer:
( 1, 5 )
x = 1
y = 1
Step-by-step explanation:
y = x + 4
2x + 3y = 17
Since they gave us the value of "y" we can use that and substitute it into the equation to find what "x" is.
2x + 3y = 17
2x + 3 ( x + 4 ) = 17
Distributive Property
2x + 3 * x + 3 * 4 = 17
2x + 3x + 12 = 17
Combine Like Terms ( 2x and 3x)
5x + 12 = 17
Subtract 12 on both sides of the equation
5x + 12 - 12 = 17 - 12
5x = 5
Divide by 5 on both sides to isolate the variable
5x/5 = 5/5
x = 1
Now that we have what "x" is, we can substitute that into one of the equations to get the value of "y"
y = x + 4
y = 1 + 4
y = 5
x = 1
y = 5
( x, y )
( 1, 5 )
Hope this helped!
Have a supercalifragilisticexpialidocious day!
A train travels 240 miles in 6 hours. At this rate, how far could the train go in 13 hours?
Answer:
Step-by-step explanation:
520 miles
5% of the students in Mr. Ferris's class joined the
band. If 65 students joined the band, how many
students are there in Mr. Ferris's class?
there’s not abc or d :( but can someone help me?
Answer:
maybe 68?
Step-by-step explanation:
Mrs. Wong planted 3 tulips for every 4 daffodils. Which of the following could be the total number of tulips and daffodils that Mrs. Wong planted?
30 tulips and 44 daffodils
33 tulips and 34 daffodils
34 tulips and 33 daffodils
36 tulips and 48 daffodils
You and a friend tutor for a total of 12 hours. Use the
tape diagram to find how many hours you tutor.
You
Friend
Can someone help with this.