Answer:
Hi help in what?
Step-by-step explanation:
After completing the square, what are the solutions to the quadratic equation
below?
x2 - 7x+9 = 4
O A. X=-7 29
B. X=-
7
O C. x-}+x20
O D. x = 729
Answer:
[tex]\bold{x_1=\dfrac{7+\sqrt{29}}2\ ,\qquad x_2=\dfrac{7-\sqrt{29}}2}[/tex]Step-by-step explanation:
[tex]x^2 - 7x+9 = 4\\\\\underline{x^2 - 2\cdot x\cdot\frac72+\big(\frac72\big)^2}-\big(\frac72\big)^2+9 = 4\\\\\big(x-\frac72\big)^2-\frac{49}4+9 = 4\\\\ \big(x-\frac72\big)^2=\frac{49}4-\frac{36}4+\frac{16} 4\\\\ \big(x-\frac72\big)^2=\frac{29}4\\\\ x-\frac72=\pm\sqrt{\frac{29}4}\\\\ x=\frac72\pm\frac{\sqrt{29}}2[/tex]
What shape is at the top of the quadrilateral hierarchy? parallelograms quadrilaterals squares rectangles
Answer:
quadrilaterals
Step-by-step explanation:
The shape is at the top of the quadrilateral hierarchy are quadrilaterals.
What is a quadrilateral?A quadrilateral is a polygon that has four sides and four angles. Types of quadrilateral are parallelograms, square, rectangle, kite.
All squares and rectangles are parallelogram while all shape with four sides are quadrilaterals.
The shape is at the top of the quadrilateral hierarchy are quadrilaterals.
Find out more on quadrilateral at: https://brainly.com/question/23935806
Trigonometric ratios, Side length. 15 points AND brainliest.
Answer:
Side GI= 2
Step-by-step explanation:
Photo attached, used SOH CAH TOA method.
Share 68 in the ratio 8:9
Answer:
68:76.5
Step-by-step explanation:
create the ratio 68/x=8/9, then simplify the side you can so get 68/x=.8888... then multiply both sides by x to get rid of the fraction, 68=.8888...x. now divide both sides by .8888... to get x by itself, 76.5=x
if you have any questions, leave them int eh comments and i will try to answer them, if this helped, pls give brainliest
Is 3/4greater or less than 1/2....is it 1/2?
Answer: yes 3/4 is greater
converting both fractions to decimals. The decimal 0.75 is bigger than 0.5, so 3/4 is bigger than 1/2.
Answer:
3/4 is greater than 1/2.
Step-by-step explanation:
One way to compare fractions is by making them have the same denominator.
You can do this by finding the least common denominator (LCM).
First, list the multiples of each denominator.
4: 4, 8, 12, 16, 20
2: 2, 4, 6, 8, 10
As you can see, 4 is the LCM.
Now, change the fractions to where they denominators of 4.
**WHICHEVER NUMBER YOU MULTIPLY THE DENOMINATOR BY, YOU MUST ALSO MULTIPLY IT BY THE NUMERATOR.**
[tex]3/4*1/1=3/4[/tex] (STAYS THE SAME)
[tex]1/2*2/2=2/4[/tex]
Now, as you can see, 3/4 is larger than 2/4.
Therefore, 3/4 is larger than 1/2.
WILL MAKR BRIANLIEST IF RIGTH!!!
Answer:
3 units
Step-by-step explanation:
By intersecting chords theorem:
[tex] AE \times EB = CE \times ED[/tex]
[tex] \therefore 3 \times 4= x \times (x+1)[/tex]
[tex] \therefore 12= x^2 +x[/tex]
[tex] \therefore x^2 +x-12=0[/tex]
[tex] \therefore x^2 +4x-3x-12=0[/tex]
[tex] \therefore x(x +4)-3(x+4)=0[/tex]
[tex] \therefore (x +4)(x-3)=0[/tex]
[tex] \therefore (x +4)=0, \: (x-3)=0[/tex]
[tex] \therefore x=-4, \: x=3[/tex]
Since, the value of x can not be negative.
[tex] \therefore x\neq - 4[/tex]
[tex] \implies x = 3[/tex]
[tex] \implies CE = 3[/tex]
i need help asap pleaseee:)
Answer:
i cant read
Step-by-step explanation:
blurry
After solving the system x+2y=10 and x-2y=2. What is the sum of x+y equal to?
Answer:
The sum of x and y is 8.
Step-by-step explanation:
x+2y=10
x-2y=2
------------
2x = 12, so x = 6. Substituting 6 for x in the 2nd equation, we get:
6 - 2y = 2, or
4 = 2y, or y = 2. The solution is therefore (6, 2).
The sum of x and y is 6 + 2 = 8 (answer)
Answer:
6 + 2 = 8
Step-by-step explanation:
[tex]x + 2y = 10 \\ + \\ x - 2y = 2 \\ = \\ 2x = 12 \\ x = 6 \\ 6 + 2y = 10 \\ 2y = 4 \\ y = 2 \\ x + y = 6 + 2 = 8[/tex]
Order
2.32, 2 1/3, 224%, 254%, 2 2/5
From least to greatest.
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
It's the second one
Step-by-step explanation:
just read the paragraph careful
The picture shows a wall of a small room.
Answer:
Hello! answer: 62
Step-by-step explanation:
The easiest way to do this in my opinion is finding the area of the whole figure then subtract that by the cut in the middle so... 8 × 10 = 80 6 × 3 = 18 80 - 18 = 62 therefore the area is 62 HOPE THAT HELPS!
Use the Pythagorean Theorem to find the missing length and then round the
result to the nearest tenth.
b = 2, c = 3
a =
Answer:
A=2.2
Step-by-step explanation:
PYTHAGOREAN THEOREM:
a^2+b^2=c^2
STEP 1:
Lets put in the given number into the Theorem.
x^2+ 2^2= 3^2
I put x in the "a" place because there is no Number that goes into there, so we put in a variable.
STEP 2:
We find the numbers, which are
x^2+4=9
STEP 3:
We then subtract by 4 from both sides, (We do this because x is not the Hypotenuse)
After subtracting from both sides we have
x^2=5
STEP 4:
Once we have that, we have to find the square root of 5 which is 2.23606798
STEP 5:
Since you say to round to the nearest tenth, we get 2.2
TIP: If the answer didn't have to be rounded to the nearest tenth the answer would've been: [tex]x=\sqrt{5}[/tex] Which is the same as 2.23606798.
Brainliest pls?
GUYS AND GIRLS PLEASE HELP ASAP!!!!!!!
Answer: 8 1/8
Step-by-step explanation:
Plsss help I will mark brainlist plsss help fast
Answer:
C.
Step-by-step explanation:
The sqrt of -16 is the same as the sqrt of 16 * the sqrt of -1. The sqrt of 16 is 4, and the sqrt of -1 is i. Multiply the two to get 4i.
need help fast don't know what to do
Answer:
maybe the answer is
D..HOPE IT HELPEDPls help, this question has been bugging me for a while.
Answer:
Step-by-step explanation:
The square length of hypotenus (the side lenght that sees 90 degrees) is equal to sum of square length of side lengths
Let x represent the missing side
6^2 = 4^2 + x^2
36 = 16 + x^2 subtract 16 from both sides
20 = x^2 and x = 2[tex]\sqrt{5}[/tex]
Johnny picked 3 pounds of strawberries. That afternoon, Johnny's sister ate 2/3 of the strawberries. How many pounds of strawberries did Johnny's sister eat?
Answer:
She ate 2 pounds
Step-by-step explanation:
(how do you eat 2 pounds of strawberries like what)
Tyrone earns $8.50 an hour. How much money will he earn if he works for 5.40 hours?
Answer:
$45.90
Step-by-step explanation:
Multiply without the decimal points, then put the decimal point in the answer: 85 x 54 = 4590
8.5 has 1 decimal place
5.4 has 1 decimal place
Therefore, the answer has 2 decimal places
= 45.90
Refine: 45.9
The answer is 45.9
1) Em uma rua há duas casas e em cada casa há dois galinheiros. Em cada galinheiro há dois cercados, em cada, há duas galinhas, e cada galinha tem dois pintinhos. Qual o total de pintinhos dessas casas?Pergunta sem título *
Answer:
Hay 32 pollitos en total.
Step-by-step explanation:
Para contestar a la pregunta planteada se debe realizar el siguiente razonamiento matemático:
Casas = 2
Gallineros = 2
Cercados = 2
Gallinas = 2
Pollitos = 2
2 x 2 x 2 x 2 x 2 = X
4 x 2 x 2 x 2 = X
8 x 2 x 2 = X
16 x 2 = X
32 = X
Por lo tanto, hay 32 pollitos en total.
write the equation -1/2x - 2y = -4 in slope intercept form
Answer:
y= -1/4x+2
Step-by-step explanation:
y=mx+b is the slope intercept form.
We first must isolate y by adding 1/2x on both sides.
-2y=-4+1/2x
next we multiple by -1/2 to get rid of the -2
y=2-1/4x
y=-1/4x+2
what is volume of rectangular pyramid with bases 6.3 mm and 2.4 mm and height 3.6 mm
Answer:
18.144 mm3
Step-by-step explanation:
V = l * w * h / 3
V: volume
I: base length
w: base width
h: pyramid height
Now, put the values in the formula to form an equation and solve it.
V = l * w * h / 3
= 6.3 * 2.4 * 3.6 / 3
= 18.144 mm3
Step-by-step explanation:
volume of rectangular based pyramid =l×b×h
(6.3×2.4×3.6)/318.144mm³stay safe healthy and happy.The difference between two positive numbers is 7 and the difference between thes
cubes is 805. If 'A' represents their product and 'B' represents the sum of their squares,
find the value of 'A-B'.
The difference between two positive numbers is 7 and the difference between these cubes is 805. If 'A' represents their product and 'B' represents the sum of their squares,
To Find :-A - BSolution :-So,
Let the number be n and m
A = n × m = nm
B = n² + m² = (n + m)²
Now
n³ - m³ = 805
(n - m) (n² + m² + nm) = 805
Since difference is 7
7 × n² + m² + nm = 805
n² + m² + nm = 805/7
n² + m² + nm = 115
(n² + n) + (m² + m) = 115
A + B = 115
Now
On squaring the first eq.
(n - m)² = (7)²
(n - m)² = 49
B - 2A = 49
Now
A + B - B + 2A = 115 - 49
A + 2A = 66
3A = 66
A = 66/3
A = 22
By using 2
B - 2(22) = 49
B - 44 = 49
B = 49 + 44
B = 93
A - B = 22 - 93 = -71
[tex]\bold{ A-B=-71 }[/tex]
f(x) = x2. What is g(x)?
Fast answer I will mark brainlyest
Answer:
Is the answer [tex]x=x^{2}[/tex] g(x)? If not please tell me.
Step-by-step explanation:
Hope this helps and have a great day!
Ayuda es para Hoy.!!
No tiene un problema solo me sale
x=
Answer:
X=180-100
=80 is the answer
Solve the following quadratic by
completing the square.
y = x2 + 10x + 10
start time: 6:37
elapsed time: 52 minutes
what is the end time
Answer:
45 23
Step-by-step explanation:
Start time: 6:37
elapsed time: 52 minutes
what is the end time 0 hrs 45 min 23
What is the value of the expression below
1/4
÷
8
Answer:
1/32
Step-by-step explanation:
1/4 divided by 8
1/4 x 1/8
=1/32
Sherelle and Venita find two bags of coins in their grandmother’s attic. Each girl selects a bag, takes a random sample of 20 coins from that bag, and lists the dates of those coins as the number of years since 1900. Here are the results.
Sherelle: 72, 56, 81, 84, 75, 26, 39, 62, 65, 66, 85, 71, 74, 68, 73, 66, 83, 60, 58, 72
Venita: 45, 65, 73, 57, 79, 66, 69, 75, 51, 44, 53, 69, 58, 77, 51, 55, 53, 78, 70, 62
1. Find the five-number summary of each data set. Then construct box-and-whisker plots of the data sets. Draw both plots above the same number line. Label the plots with the girls’ names.
Answer:
hope this helps sweetie :)
Step-by-step explanation: So first what you want to do find the data sets. You can do that by crossing out the numbers to find the median which would be in the very middle. Then draw the box and whisker plot, and boxes around each number. this should give you everything you need to draw the number line and label the plots.
Answer:
Sherelle: Venita:
minimum = 26 minimum = 44
maximum = 85 maximum = 79
First Q. = 60.5. First Q. = 53
Third Q. = 74.75 First Q. = 72.25
Median = 69.5. Median = 63.5
Step-by-step explanation:
if I have a 68% overall and I get a A+ on a final exam that is worth 20% of my grade what would my grade be? There is 86 questions on the final
Answer:
i guess your new grade would be 88%. If you past 100%, you might pass for that grade. Even if you get a 90%, you'll still be able to pass.
Step-by-step explanation:
James goes out to eat with Janet, and their meal costs $68. There is a sales tax of 7% and Janet wants to leave a 20% tip. How much money will Janet spend on the entire meal?
Answer:
$86.36
Step-by-step explanation:
Tax: 7%, or 0.07
Tip: 20%, or 0.2
Substitute the values:
Tip: 68 * 0.07 = 4.76
Tip: 68 * 0.2 = 13.6
Just the meal cost: 1 * 68 = 68
Add these all together
4.76 + 13.6 + 68 = 86.36
Thus, the total cost of the meal would be $86.36