Answers
Answer:
Step-by-step explanation:
Unless we set x^2 + 8x + 15 equal to zero, we don't have an equation to be solved. I will assume that the problem is actually x^2 + 8x + 15 = 0.
The coefficients of this quadratic are {1, 8, 15}, and so the "discriminant" b^2 - 4ac is (8)^2 - 4(1)(15), or 4. Because the discriminant is positive, we know that there are two real, unequal roots.
Continuing with the quadratic formula and knowing that the discriminant is 4, we get:
-8 ± √4 -8 ± 2
x = ---------------- = --------------- , or x = -2 ± 1: x = -3 and x = -5
2 2
Related Questions
Write 2x - x2 = 1 in standard form.
Answers
Answer:
3.45782 x 10^4
Step-by-step explanation:
Khloe is measuring yarn to make jewelry for her birthday party. She needs 4 feet of yarn for necklaces.How many inches of yarn does Khloe need?
Answers
Answer:
JUST MULTIPLY 4x12=.... and youll find the answer
Step-by-step explanation:
4yarn x 12 inches= 48ft
A clothing store used the sign shown below to advertise a discount on shirts. **DISCOUNT** BUY 2 SHIRTS, GET 50% OFF THIRD SHIRT. *** Olivia wants to buy three shirts, which were originally priced $42.45 each. The store will discount the price of the third shirt and then apply a 8.25% tax to the total cost of all three shirts. Including the tax, what is the total cost of the three shirts? 5 points
Answers
Answer:
114.88
Step-by-step explanation:
If you get a student loan for $2,000 at 8% interest, what is the simple interest for one year?
Answers
Can yall help me with this pls its due rn and im cryinggggg ill definetly give brainliesttt : (
Answers
Answer:I would just guess and put 55 because 20x+35 would be 55x
Step-by-step explanation:
Answer:
4x 75Step-by-step explanation:
Now I have never seen a question like this but it would make sense if the GCF is 5, 4x and 7 since 5 x 4x = 20x and 5 x 7= 35.
So the blank x would be 4 x, the right side would be 7 and the bottom left would be 5.
A phone company charges a sign-up fee of $3.50, plus $x for every hour the phone is
used. If Brian talked on the phone for 12 hours and paid a total of $75.50, which of the
following equations can be used to find, x, the hourly rate of the phone plan?
Answers
Answer:
...........................
Explain in words how to use the formula c=πd
Answers
increase 140 in the ratio 7:5.
Answers
Answer:
the answer is 196
Step-by-step explanation:
Answer:
i think that the correct answer might be 196
I'LL GIVE BRAINLIEST PLEASE ANSWER ALL FOUR PLEASE
Answers
Answer:
i would need to see all four to be able to answer ?
Step-by-step explanation:
Which algebraic expression is equivalent to the expression below?
A.24x +30
B.6x- 1
C.6x-9
D.24x -30 6(4x - 5)
Answers
Answer:
Step-by-step explanation:
3x - 2x + 1 = 8
How do I solve this
Answers
Answer:
x = 7
Step-by-step explanation:
3x - 2x + 1 = 8
x + 1 = 8
*subtract 1 from both sides
x = 7
Answer:
[tex]x=7[/tex]
Step-by-step explanation:
Combina los términos semejantes
[tex]3x-2x+1=8\\x+1=8[/tex]
Resta 1 de ambos lados de la ecuación
[tex]x+1-1=8-1\\[/tex]
Simplifica y resta los números
[tex]x=7[/tex]
60 Points! Please answer correctly no bull answers if you don't know it don't answer!
But if you do know the answer plz answer quickly! WILL GIVE BRAINIEST, FASTEST ANSWER! EXPLAIN PLEASE <3333
Answers
Answer:
22.44 cm^2
Step-by-step explanation:
There's four triangles and one square so lets start with the triangles.
2.24×3÷2=3.36
That's the area of one triangle, there's four so:
3.36×4=13.44
Then the square!
3×3=9
13.44+9=22.44 cm^2
I'm not sure if this is the standard way since I didn't learn about pyramids so I used the area stuff, so sorry if its not correct.
Have a nice day!
What's the perimeter?
Answers
Answer:
the line crossing the trapezoid, the one that helps you find the S. In this case the perimeter is 4 (;
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
perimenopause is inside just count the inside of the trapezoid
hope this helps
what is 11 divided by 4,697
Answers
Answer:
[tex]\frac{1}{427}[/tex]
Step-by-step explanation:
11 ÷ 4697
[tex]\frac{1}{427}[/tex]
10. Solve for y. 3y + 6p = 9r
Answers
Answer is y = 3r - 2p
HELP ON MATH PLS HELPPPPPPpppp
Answers
Answer:
The answer is 14
Step-by-step explanation:
nOiCe
Find the measure of angle 5, if m<2 is 120°
Answers
Answer:
m< 5 = 30°Step-by-step explanation:
I hope that is useful for you :)
Tara has five 10p coins and four 20p coins in her purse. She takes out two
coins at random. What is the probability that she takes out at least 30p?
Answers
Answer:
4/9
Step-by-step explanation:
9 coins in total
Amount of combinations to get 30p is 4 ways
so 4/9
What is the correct factorization of
6x2 + 24x?
Hurry
Answers
Answer:
6x^2*(x+4)
Step-by-step explanation:
hope this helps! :)
NEED HELP/WILL MAKE BRAINLY
Jorge needs to paint the circular tops of five identical tables. Each table has a circumference of about 12.6 feet. He has a 1-pint can of paint, which will cover about 70 square feet of surface area.
Which statement is true for this situation?
Group of answer choices
He will have enough paint to put two coats of paint on all of the tables.
He will have enough paint to put one coat of paint on only four of the tables.
He will have enough paint to put one coat of paint on all of the tables.
He will have enough paint to put one coat of paint on only three of the tables.
Answers
Answer: He will have enough paint to put one coat of paint on all of the tables.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
A. Skewed Right
B. Uniform
C. Skewed Left
D. Normal
Answers
Skewed Right I think. I'm not sure but try it
Answer:
C. Skewed Left
Step-by-step explanation:
Because the first 2 age group have minimal runners than the next 3 age groups spikes and the last 4 are very low once again. the spike occurs relavity near the beggining so if graphed it would be skewed left.
Can someone help me? What is the solution for x-2 > 15 ?
Thank you!
Answers
Answer: X=17
Step-by-step explanation:
Answer:
Any number above 17
18 works.
Step-by-step explanation:
18-2 = 16
16 > 15
> means the number on the left is greater.
Hope this helps.
a soda company puts a different symbol on a soda cap each year.
Answers
Answer:
cool
Step-by-step explanation:
Which of the following is a prime number between 50 and 60?
A.
55
B.
53
C.
57
D.
51
Answers
Answer: B, 53
53 is the only prime number between 50 and 60
Solve for x
19/10 = x/12
Answers
Answer:
x=19
Step-by-step explanation:
19/12=x/12
19*12=x*12
228=12x
228/12=x
19=x
how do I find the value of m in 3.6+m=10
Answers
Please him me with this
Answers
Answer:
x=3
Step-by-step explanation:
To do this we need to do
10-4=6
Then we do
6/2=3
x=3
Is my work correct here I'm supposed to find the first four terms using the recursion formula?
Answers
Answer:
yes your formula is correct
Step-by-step explanation:
At schools art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long. How many square feet of sand will there be after the flower bed is installed? Use 3.14 for pi. Round that answer to the nearest square foot.
Please help I’m so confused right now!!!
Answers
Answer:
i got 32square feet (yes i got it right).
Step-by-step explanation:
The amount of sand will there after the flower bed is installed is,
⇒ 18.5 feet²
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
At schools art teacher designs a circular flower bed inside a rectangular sandbox.
Here, We have;
The sandbox is 6 feet wide and 10 feet long.
Now, We get;
⇒ Radius of circle = 5 feet
Hence, Area of circle = πr²
⇒ Area of circle = 3.14 × 5²
⇒ Area of circle = 78.5 cm²
And, Area of rectangular sandbox is,
⇒ 10 × 6
⇒ 60 feet²
Thus, There will be after the flower bed is installed = 78.5 - 60
= 18.5 feet²
Learn more about the rectangle visit:
https://brainly.com/question/2607596
#SPJ3
-8x^3 - x^4 + 1/9 + x
Answers
PLEASE GIVE ME BRAINIEST IF I HELPED YOU!!! THANKS!! HAVE A GOOD DAY/NIGHT!!!
also......
X=5