simplify
√45 + √80 − 3√20
√45+√80−6√5
Step-by-step explanation:
Exact Form:
√45+√80−6√5
Decimal Form:
7.29108201…7.29108201…
mo played 30 games of chess he won 18 of these games what fraction of the games did he win give your answer in its simplest form
Answer:
18/30
Step-by-step explanation:
find the value of x in the triangle shown below
someone please help me
Answer:
Ok it might take a bit but I'll help:))
Step-by-step explanation:
Which of the following is TRUE about sampling distributions?
Larger sample gives worse data. More samples give worse data.
Larger sample gives better data. More samples give worse data.
Smaller sample gives worse data. More samples give better data.
Smaller sample gives better data. More samples give better data.
Answer:
Smaller sample gives worse data. More samples give better data.
Step-by-step explanation:
A sample is the number of elements that are used in a given experiment.
For example, if you do a survey to 100 random people, then your sample is 100 people.
Here we can see something kinda obvious, if you increase your sample, then more people answer your survey, wich means that more samples give more data, and more data is better, then more sample gives better data.
We also can see that if we have a small sample (for example 10 people) the survey will not be really useful, this happens because if we have really small samples the sample may be biased, and we always want to aboid this.
Then:
Smaller samples give worse data, and as we increase the samples, we also get better data.
The correct option is:
"Smaller sample gives worse data. More samples give better data."
1. In which number does the 6 have a value that is one-tenth the value of the 6 in 34,7612
A. 16,305
B. 28,695
C. 51,364
D. 78,426
Every day, the Clark Pet Store uses 1 1/2 bags of dog food to feed the dogs. How many days will 7 1/2 bags of dog food last?
Write your answer as a fraction or as a whole or mixed number.
Answer:
5 days
Step-by-step explanation:
1.5/5=7.5
Hope this helps!
Given that -5 < -3, which statement is not true?
-5 is to the left of -3 on the number line.
-3 is to the right of -5 on the number line.
-3 > -5
-3 is less than -5,
Answer:
-3 is less than -5
Step-by-step explanation:
the bigger the negative number is, the less it has a great amount of value.
-3>-5 is correct because -3 is greater than -5
-5 is to the left of -3 on the number line is true
-3 is to the right of -5 on the number line is true as well
hope this helps! : )
Can someone please help me?
Answer:
It is C i believe
Step-by-step explanation:
When filled, a balloon in the shape of a sphere has a diameter of 14 inches. What is the approximate volume of air, in cubic inches, needed to fill this balloon?
1,078
1,437
8,621
11,494
Answer:
1,437
Step-by-step explanation:
Answer:
a I'm not as smart so trust me
Step-by-step explanation:
.............................................................................................
Answer:.............................................................................................
Step-by-step explanation:
.............................................................................................
which expression is equivalent to the expression shown?
Answer:
the answer is 7^12
Step-by-step explanation:
7^14 ÷ 7^2
14 - 2
12
Given f(x) = {(4 - x)?, what is the value of f(16)?
Record your answer and fill in the bubbles on your answer document.
f(16) = -5592404
9514 1404 393
Answer:
48
Step-by-step explanation:
Put 16 where x is and do the arithmetic.
f(16) = 1/3(4 -16)^2 = 1/3(-12)^2 = 1/3(144)
f(16) = 48
A rectangle has an area of 24 cm2. Function f gives the length of the rectangle, in centimeters, when the width is w cm.
Determine if each value, in centimeters, is a possible input of the function.
3
Answer:
Input is the value of w and the function f = 24/w as length x breadth = area of rectangle
Heart if this helped
Tim buys a car for $7,500 and sells it for a profit of $1,000. How much did he sell it for?
Joan paid $47.98 for a jacket. If the tax rate is 8.25%, what was the cost of the jacket before tax?
Answer:
$44.021
Step-by-step explanation:
$47.98 - 8.25% = $44.021
What are the steps you would take to find the area of the shaded region? Check all that apply.
Answer:
THE ANSWER IS INCOMPLETE SO IM GOING TO REPORT:/
Step-by-step explanation:
Which is a solution of 2x(8x + 5) (7x – 13) = 0?
Answer:
Step-by-step explanation:
This has 3 solutions
2x = 0 Divide by 2
x = 0
8x + 5 = 0 Subtract 5 from both sides
8x = - 5 Divide by 8
x = - 5/8
x = -0.625
7x - 13 = 0 Add 13 to both sides
7x = 13 Divide by 7
x = 13/7
x = 1.86
PLEASE HELPP ME IM GONNA FAIL
Answer:
90 degrees.
Step-by-step explanation:
They right ray point is on the 90 degree number and left ray is on zero so we find the difference.
90-0=90
so it measures 90 degrees.
Answer:
<ba=180 <bc=90
Step-by-step explanation:
g2 + 23 when g = 6??? help
Tanya has a $50 gift card to spend on Amazon. She wants an airpod case cover for $12.
She also wants to buy some bracelets for $9.50 each. How many bracelets can she buy
without going over?
Answer:
4
Step-by-step explanation:
She can buy 4 bracelets because 4 x 9.50 = 38 + 12 = 50. So 4 would fit her budget perfectly without going over. LEt me know if you find any fault in my answer! Thanks! Have a good day! Hope this helps!
I need help proving the y-intercept is 5 but I can't figure it out and will give brainliest if you can show the steps how you got the answer!!!!!!!the coordines are (9,5)
And can you help with what I did wrong here
HELP ME PLEASE
Find the Volume of each cylinder. Round to the nearest tenth
471.2
The 10 is the diameter and you need the radius to do it so you do diameter dived by 2 which gives you the radius then you the radius to the power of 2
so the formula would be (3.14)(5)²(6)
HELP ME PLS! Customers at the gym pay a membership fee to join and then a fee for each class they attend. Here is a graph that represents the situation
Answer:
the slope should represent the fee of each class
.
the vertical intercept is the membership fee
Answer:
the y-inyetcept means the starting fee to join
and the slope means fee per class paid by the customers.
Step-by-step explanation:
HELP HELP HELPPPPP PLEASEEE
Answer:
A
Step-by-step explanation:
1/2f
Answer:
A
the first option
Step-by-step explanation:
Please help! This is past due and i need it in in like 30 minutes. Ill be posting more questions soon so stay here.
Answer:
384 square inches
Step-by-step explanation:
The side is 10×5=50
There are 4 sides of equal surface area so we are at 200
The floor is 8×10=80 so we are at 280
The front is 8×5=40 and the back is the same so add another 40 so we are at 360
Add the little triangles which are 4×3=12 and you add the back as well so we get 384 square inches
En Cartagena de cada 10 personas 4 tienen una enfermedad, a este ritmo ¿cuántas personas se contagiarán si son 400 personas?
porfa para ya
ayudaaaaaaa
Answer:
Se contagiarian 160 personas.
Step-by-step explanation:
Para este problema debenos usar la siguiente regla de tres:
[tex]\frac{10(personas)}{4(enfermas)}=\frac{400(personas)}{x(enfermas)}[/tex]
Ahora, debemos despejar x de la ecuacion de arriba.
[tex]x=\frac{400(personas)*4(enfermas)}{10(personas)}[/tex]
[tex]x=160(enfermas)[/tex]
Por lo tanto, se contagiarian 160 personas.
Espero te haya sido de ayuda!
2 + 6x > 38 How can I solved this?
Answer:
Below
Step-by-step explanation:
Move all terms not containing x to the right side of the inequality.
6 x > 36
Divide each term by 6 and simplify.
x > 6
Inequality Form: x > 6
Interval Notation: ( 6 , ∞ )
Hope this helps:)
Ms. Sanchez has $200 to spend on parking and admission to a museum. The parking will cost $10 and admission tickets cost $15.50 per person, including tax. Write and solve an equation that can be used to determine the number of people that she can bring to the museum, including herself.
Answer:
12 people including herself
Step-by-step explanation:
x = number of people
($200 - $10)/$15.50 = x
x = 12.26
find the value of sec ø if cos ø=2/19;0°<ø<90°
Answer:
[tex] \sec( \alpha ) = \frac{1}{ \cos( \alpha ) } \\ \sec( \alpha ) = \frac{19}{2} [/tex]