Answer:
[tex]\:x=-\frac{3}{2},x=-\frac{1}{2}[/tex]
Step-by-step explanation:
Subtract 4 from both sides:
[tex]4x^2+8x+7-4=4-4[/tex]
Simplify:
[tex]4x^2+8x+3=0[/tex]
Solve with the quadratic formula:
[tex]x_{1,\:2}=\frac{-8\pm \sqrt{8^2-4\cdot \:4\cdot \:3}}{2\cdot \:4}[/tex]
[tex]x_{1,\:2}=\frac{-8\pm \:4}{2\cdot \:4}[/tex]
Separate the solutions:
[tex]x_1=\frac{-8+4}{2\cdot \:4},\:x_2=\frac{-8-4}{2\cdot \:4}[/tex]
The solutions to the quadratic equation are:
[tex]\:x=-\frac{3}{2},x=-\frac{1}{2}[/tex]
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Answer:
200 employees
Step-by-step explanation:
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Let the total number of employees = x
Our Equation=
15% of x = 30 female nurses
15/100 × x = 30
15x /100 = 30
Cross Multiply
15x = 100 × 30
x = 3000/15
x = 200
Number of employees = 200
can someone please help me with this?
it's all on the picture please
The volume of a cone is 88 pi cubic feet. Its height is 8 feet. Fatima is finding the radius of the cone. Her work is shown below.
V = one-third pi r squared h. Step 1: 88 pi = one-third pi r squared (8). Step 2: 88 pi = StartFraction 8 Over 3 EndFraction pi r squared. Step 3: StartFraction 8 Over 3 EndFraction (88) = r squared. Step 4: 234.7 = r squared. Step 5: 15.3 = r.
What is Fatima’s error?
In step 4, Fatima did not find the correct value of StartFraction 8 Over 3 EndFraction (88).
In step 2, Fatima should not have multiplied One-third and 8.
In step 3, Fatima did not multiply 88 by the reciprocal of StartFraction 8 Over 3 EndFraction.
In step 1, Fatima did not substitute the correct value for the height in the formula.
Answer:
c
did it on edg:D
mark brainliest please need it for a new rank
Answer:
C or "In step 3, Fatima did not multiply 88 by the reciprocal of 8/3"
Step-by-step explanation:
Probability is a measure of
Answer:
uncertainty.
Step-by-step explanation:
It measures the uncertainty and likelihood of something to happen to determine how likely something is to happen, which in other words, is a measure of how uncertain you can be about something.
Gary goes to the grocery store to buy hot dogs and hamburgers for a cookout. He buys a total of 8 packages for a total of $28.52. A package of hot dogs costs $2.29 and a package of hamburgers costs $5.69.
Answer:
3 hamburger packs
5 hot dog packs
Step-by-step explanation:
The system of equations that corresponds to the situation is:
1. x + y = 8
2. 2.29x + 5.69y = 28.52
Let's use variables to represent the unknowns in the problem.
Let:
x = number of packages of hot dogs purchased
y = number of packages of hamburgers purchased
We are given the following information:
1. Gary buys a total of 8 packages: x + y = 8
2. The total cost of the packages is $28.52: 2.29x + 5.69y = 28.52
So, the system of equations that corresponds to the situation is:
1. x + y = 8
2. 2.29x + 5.69y = 28.52
To know more about equations:
https://brainly.com/question/10724260
#SPJ2
Complete question is:
Write a system of equations that corresponds to the situation. Do not solve. Gary goes to the grocery store to buy hot dogs and hamburgers for a cookout. He buys a total of 8 packages for a total of $28.52. A package of hot dogs costs$2.29 and a package of hamburgers costs $5.69.
A hexagonal aquarium needs to hold 10 gallons of water and be 24 inches tall. What should be the area of the hexagon?
Answer:
240
Step-by-step explanation:
Convert 60% into a decimal and a Fraction(Simplify)
Decimal
Fraction
Answer:
decimal: .6
fraction: 3/5
please help me!! 8th grade math, Pythagorean Theorem 19 pts!
Answer:
do 70 divded by two and that is 35. and then 15^2 (squared) + 35^2 (squared) and then whatever that equals but the square root around it and that is your answer.
Step-by-step explanation:
a + b = 10 a - b = 2
A) a = 5, b = 5
B) a = 2, b = 8
C) a = 6, b = 4 Eliminate
D) a = 3, b = 7
Answer:
Step-by-step explanation:
Answer:
Your answer would be C
6 (A) + 4 (B) = 10
6 (A) - 4 (B) = 2
Please help with this question
Answer:
Point G and Point B
Step-by-step explanation:
The quadrant on the top right is quadrant 1 and the quadrant on the top left is quadrant 2. The quadrant on the bottom right is quadrant 4 and the quadrant on the bottom left is quadrant 3.
What’s the answer I keep trying my best, but I still can’t get it !!!
Answer:
I think it is 22000 bc u place the 10 in the x spot and multiply.
Marla has 1\2 of a pound of candy. She equally distributes the candy into 4 bags. How much candy will go in each bag?
Answer:
1/8 or 8
Step-by-step explanation:
What is 95% as a whole number
Answer:
95
Step-by-step explanation:
Answer:
95% of what? this question is incomplete.
Find the volume of a right circular cone that has a height of 16 m and a base with a
circumference of 14.7 m. Round your answer to the nearest tenth of a cubic meter.
Answer:
Step-by-step explanation:
Start earning $78/hourly for working online from your home for few hours each day... Get regular payment on a weekly basis... All you need is a computer, internet connection and a little free time..... Read more here... www.Nifty2.com
Jill had 2 apples. Addy gave Jill 5 more apples. How many apples does Jill have altogether? Mark, you brainlieest if correct!
Answer:
its 7 apples
Step-by-step explanation:
Brainliest pls
Answer:
its......wait somebody answered it already :(
somebody help me please
Answer:
B. 3^(2/3)
Step-by-step explanation:
An investor puts $800 in an account that pays 2% interest compounded annually. Find the account balance after 6 years.
Answer:
$900.929
Step-by-step explanation:
hope it helps you
please mark me as brainlist
Triangle ABC has vertices with coordinates -1,-1 , 4,0 and 0,4 Prove that ABC is an isosceles triangle but not a right triangle.
Can the sides of a triangle have lengths of 3, 8, and 3
Explain??
Answer:
no
Step-by-step explanation:
the triangle rule is the sum of any two sides of a triangle MUST be larger than the third, in this case 3+8 > 3, but 3+3 < 8 so it cannot be a triangle
Answer:
An isosceles triangle has two side lengths that are the same and one side length that is different. Soo... basically to sum it up in a word, yep.
Step-by-step explanation:
Suppose a study estimated that 61% of the residents of a community (with an
error range of 18 percentage points at 95% confidence) favor replacing the
playground equipment. Which of the following percentages of the
community's residents may favor replacing the playground equipment?
A. 82%
B. 54%
C. 72%
D. 95%
Finding the confidence interval, it is found that the percentages of residents that may favor replacing the equipment is be given by:
B. 54%.
What is a confidence interval?The interval is given by the estimate plus/minus the margin of error. The range is twice the margin of error.
In this problem, we have that:
The estimate is of 61%.Since the range is of 18%, the margin of error is of 9%.Hence the interval is given by:
(61% - 9%, 61% + 9%) = (52%, 70%).
Each of the values in the interval can be the percentage, hence option B is correct.
More can be learned about confidence intervals at https://brainly.com/question/15712887
#SPJ1
what is (4315421 X 5378156031 X 3517905631) X 0 Plz help!
Answer:
zero ...I know you just sharing the points.
Plzz help i been asking this question for way too long
Step-by-step explanation:
we know that that the stickers are 1 inch long and 1 inch wide.
We also know that 1x1=1
There are also 3 stickers.
1x3=3
3 is your area.
If the interior angle of a convex polygon is 135 , the exterior angle is?
Answer:
45
Step-by-step explanation:
To find the exterior angle, you subtract the interior angle, which, in this case, is 135, by 180
So, 180-135=45 degrees
Use the long division method to find the result when 4x^3+23x^2 + 21x + 30 is
divided by x +5.
Answer:
A polynomial is an algebraic expression made up of two or more terms subtracted, added, or multiplied. A polynomial can contain coefficients, variables, exponents, constants, and operators such as addition and subtraction.
It is also important to note that, a polynomial can’t have fractional or negative exponents. Examples of polynomials are; 3y2 + 2x + 5, x3 + 2 x 2 − 9 x – 4, 10 x 3 + 5 x + y, 4x2 – 5x + 7) etc. Like number, polynomials can undergo addition, subtraction, multiplication, and division.
We saw addition, subtraction, multiplication, and long division of polynomials previously.
hope it helps make brainlliest ty
Easy math question hurry up pls it 20 points
Answer and Step-by-step explanation:
1.
c(1) = -0.6
c(n) = c(n - 1) × -5
Those are the answers.
#teamtrees #PAW (Plant And Water)
solve for x, Round to the nearest thenth. x,9.2,16.5
12% of 72 is what number?
Answer:
8.64
Step-by-step explanation:
12% = 0.12
72(0.12) = 8.64
a line is reflected. Which of these could be the result? Pls help
Answer:
A
Step-by-step explanation:
Answer:
The answer is A.
Step-by-step explanation:
AP EX
Find the 64th term of the arithmetic sequence 29, 38, 47, ...
Answer:
a₆₄ = 596Step-by-step explanation:
The equation of the nth term of the arithmetic sequence is: [tex]a_n =a_1+d(n-1)[/tex]
d = 38 - 29 = 9
a₁ = 29
Therefore:
[tex]a_{64} =29+9(64-1)\\\\a_{64} =29+9\cdot63\\\\a_{64}=596[/tex]
