Step-by-step explanation:
x²+3x+4=0
x²+3x_ +2=0
x²+3x_2=-2
x²+3x_2+(3x_4)²=-2+(3/4)²
(x+3/4) =-2+9_16
x+3_4 = -32+9__16 =√-23_6
x+3_4 =-√23_4
x = -3+√-23___4
x = -3- √-23___4 , -3+√-23___4 //
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Look at this system of equations.
-3x+3y=12
y=x+4
The solution set of this system is best explained by which of these statements?
A
The graphs of the equations are parallel lines because they have the same slope but different y-intercepts. The system has no solution.
B
The graphs of the equations are the same line because the equations have the same slope and the same y-intercept. The system has infinitely many solutions.
C
The graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. The system has exactly one solution.
D
The graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. The system has exactly one solution.
Answer:
D. The graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. The system has exactly one solution.
Step-by-step explanation:
Hope it helps you
Does (8, 1) make the inequality y<x+9 true?
Answer:
Yes
Y being 1 is less than x being 8 + 9
In ΔKLM, l = 820 cm, m = 560 cm and ∠K=169°. Find the length of k, to the nearest centimeter.
Answer:
1374
Step-by-step explanation:
delta math
The length of the side k in the given triangle is 1,373.9 cm.
What is cosine law?The law of Cosines, also known as Cosine Rule or Cosine Formula basically relates the length of the triangle to the cosines of one of its angles.
Given that, in ΔKLM, l = 820 cm, m = 560 cm and ∠K=169°, we need to find the length of side k,
Using the cosine law,
k² = l²+m² - lmCos169°
= 820²+560²-(820)(560)cos169°
= 1,373.9
Hence, the length of the side k in the given triangle is 1,373.9 cm.
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*jumps up and down excited*
Answer:
>
Step-by-step explanation:
5 divided 9/10 in fractions forms
Answer: 5 5/9
Step-by-step explanation:
cause that’s the answer
5 divided by 9/10, in fraction form, is 50/9.
To divide 5 by 9/10, we can convert the whole number 5 into a fraction with a denominator of 1.
5 can be expressed as 5/1.
We can rewrite the division problem as a multiplication problem by taking the reciprocal (flipping the numerator and denominator) of the divisor:
5/1 ÷ 9/10
= 5/1 × 10/9
Multiply the numerators together and the denominators together:
(5×10) / (1 × 9) = 50/9
Therefore, 5 divided by 9/10, in fraction form, is 50/9.
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Solve the inequality for x.
x-c/d > y (for d > 0)
The solution for x of the inequality x-c/d > y (for d > 0) is x > d * y + c.
Here,
To solve the inequality for x, we'll isolate x on one side of the inequality:
Given inequality: (x - c) / d > y
First, we'll multiply both sides of the inequality by d to get rid of the fraction.
Remember that since d > 0, we don't need to reverse the inequality:
d * [(x - c) / d] > d * y
Next, the d on the left side cancels out, and we have:
x - c > d * y
Now, to isolate x, we'll add c to both sides of the inequality:
x - c + c > d * y + c
x > d * y + c
So the solution for x is x > d * y + c.
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Bobby's investment of $225,000 loses value at a rate of 3% per year. Use an exponential function to find the value of the investment after 10 years. Round to the nearest whole dollar. Free brainliest 100 points
Answer:
Step-by-step explanation:
Answer:
give other guy brainliest
solve asap please
ty!
Answer:
d=3π
Step-by-step explanation:
I don't know how to explain it but I had that question before and 3π was correct
I NEED AN ANSWER ASAP GIVING 20 POINTS FOR IT!!
A child’s sandbox is 4 ft wide, 6 ft long, and 2 1/2 ft deep. What is the volume of the sandbox?
Answer:
The answer is 60 m^3
Step-by-step explanation:
l x b x h
= 6 x 4 x 2 1/2
= 24 x 5/2
= 120/2
= 60 m^3 Ans
Harper's hair was 7 centimeters long after her last haircut, and it grows 5 centimeters every year. Harper last got her hair cut 8 years ago. How long is it now? Write and solve an equation to find the answer.
simply this 3/5-5/8
Answer:
-1/40
Step-by-step explanation:
find a common denominator, 40 and then subtract.
24/40 - 25/40 = -1/40.
Answer:
the answer is -1/40
Step-by-step explanation:
- 1/40 = -40/1 = 40
Elle earned $45 last month babysitting. This
month she earned $35. What is the
approximate percent of decrease?
Answer:
40%
Step-by-step explanation:
Fill in the blanks below in order to justify whether or not the mapping shown
represents a function.
Set A: 1,2,9
Set B: 0,4,6,5
Answer:
wheres the picture?
Step-by-step explanation:
What is the volume of this cube?
Answer:
1 cubic centimeter
Step-by-step explanation:
volumn of a cube = side3
=1³
= 1 cm³
Me.Lee ordered some pizzas to be delivered. The bill for the pizza was m dollars. Mr. Lee tipped the pizza delivery driver 15% of the bill. Write an expression for the total amount of money Mr. Lee paid
The expression would be: m + 0.15m and to know how much she paid I believe it would be 26.09 (rounded)
An ipod shuffle costs $99.00. The sales tax rate is 8%. What is the total cost of the ipod shuffle including tax?
The formula for calculating the amount of money (M) in an account
after t years is M = P(1 + r)t, where P is the initial value and r is the
annual interest rate as a decimal. Susan wants a balance of $500 after
10 years. How much should she initially deposit into her account that
earns 3%?
$6,719.58
$671.86
$36.27
O $372.05
Can someone please help me out with this problem
Answer:
15w+5
Step-by-step explanation:
Any like terms can be combined to simplify.
2w+13w=15w
4+1=5
So, 2w+4+13w+1= 15w+5
Answer:
W = -1/3
Step-by-step explanation:
15W + 5= 0
15W = -5
W = -5/15
W = -1/3
A rectangle has perimeter 200 feet.
1. Let L represent the length of the rectangle. Write an equation for the width W in terms of L.
2. Write a function A(L) that represents the area of the rectangle with length L.
Answer:1. (200-2L)/2 2.L x (200-2L)/2=A
Step-by-step explanation:
Answer:
Part 1)
[tex]W=100-L[/tex]
Part 2)
[tex]A(L)=L(100-L)[/tex]
Step-by-step[tex]W = 100-L[/tex] explanation:
We are given a rectangle with a perimeter of 200 feet.
Part 1)
The formula for perimeter for a rectangle is:
[tex]200=2(L+W)[/tex]
We can divide both sides by 2:
[tex]100=L+W[/tex]
And subtracting L from both sides yields:
[tex]W=100-L[/tex]
Part 2)
The area of a rectangle is given by:
[tex]A(L)=LW[/tex]
Since we solved for W earlier:
[tex]A(L)=L(100-L)[/tex]
Omar is setting up a proof of the Pythagorean theorem. He draws a scalene right triangle and plans to use similar triangles in his proof. What else should he draw?
Answer:
The altitude to the triangles hypotenuse
Step-by-step explanation:
answer quick please if fast and correct i will give the brainly thingy
Step-by-step explanation:
You divide each term by -2
hi pls help i’ll give brainliest if you give a correct answer
Answer:
0.47..................
Step-by-step explanation:
..........
what does inequality mean in math terms
Answer:
I don't know how to explain it, but here is an example of one. if you need any help I can help you!
Step-by-step explanation:
For example:
yoo someone help asaapp!
Answer:
A 76
Step-by-step explanation:
7x+8+7x-2+5x+16+110=360
19x+132=360
19x=228
x=12
∠E=5(12)+16
=76
Answer:
76. hope it helps.................
Emilia and Sydney went out to dinner. The bill came to $48. They want to leave a 20% tip and
split the bill. How much do they each pay?
$9.60
$28.80
$57.60
$68.00
Answer:
Option B is correct.
Step-by-step explanation:
Total bill = $48
Tip = 20%
Amount of tip = 20% of 48
Amount = [tex]\frac{20}{100}*48[/tex]
Amount = 0.2 * 48
Amount = $9.60
Total bill with tip = 48 + 9.60 = $57.60
Dividing by 2 as they are spliting the bill.
Each pays = [tex]\frac{57.60}{2}=28.80[/tex]
Therefore,
Option B is correct.
help solve this please
Someone plz help with these questions:
1. what is 36/75 as a percent?
2. 1/3 as a percent
3. 1/9 as a percent
4. 2/9 as a percent
5. 8/9 as a percent
Answer:
48% for number 1
step-by-step explanation :
All you have to do is divide the numerator by the denominator and then multiply that result with 100 like so
BRAINLIEST FOR THE CORRECT AWNSER!! What is the measurement of
I doubled checked the correct awnser is D
The cost for 16 ounces of cheese is $3.20. What is the cost for 20 ounces of cheese? The cost for 20 ounces of cheese is $
Answer:
Step-by-step explanation:
The distance between the polnts (4, 1) and (9, 1) Is
a. 5
b. sqrt73
c. sqrt14