Answer:
1. 9.18
2. 9.3
3. 9.376
4. 9.51
Step-by-step explanation:
identity the value for a, b, and c.
2x^2=-7x-9
If you buy a stock originally valued at 2500 then sell that stock later at $2550 what is the percent of increase in the stock
Answer:
2550-2500 = 50
25% percent increase.
ROCKET SLED On a track at an Air Force base in New Mexico, a rocket sled
travels 3 miles in 6 seconds. What is the average speed in miles per hour?
Answer:
Answer: Rocket distance (rocket sled) =3 mil Time Taken=6seconds
Average Speed=Total Distance ÷ Time Taken. Average speed= 3÷ 6=1/2. So therefore average speed in miles per seconds= Average in miles/seconds
Average speed in miles per seconds=1/2
Average in miles/hour = Average speed in miles per seconds/hour.
Average in miles/hour=1/2÷60=30
Therefore Average speed in miles per hour =30 miles per hour
giải phương trình nghiệm nguyên x^2 - 3y^2 +2xy -2x - 10y +4 =0
can someone please help me answer this function please?
Answer:
B) [tex]x\geq0[/tex]
Step-by-step explanation:
The domain of the square root function is all real non-negative numbers. In a numerical format that is as follows:
[tex]D(\sqrt{x})={[0,\infty )}[/tex]
This is more commonly denoted as:
[tex]x\geq0[/tex]
In the case of the given function:
[tex]g(x)=\sqrt{8x}[/tex]
The domain is still ([tex]x\geq0[/tex]) as multiplying a value by (8) does not alter this. A negative number times (8) is still negative and thus cannot be a part of the square root domain. Similarly, a positive number times (8) is still positive and remains a part of the square root domain. Moreover, (0) times (8) is still (0).
Can someone help me please I don’t get this (due today)
Sure, I will help you.
25. Measure of MP=152 degrees.
26. Measure of QNL=208 degrees.
27. Measure of WT=155 degrees.
28. Measure of WTV=205 degrees.
I believe that these answers are correct, but if not, please let me know. If you have any questions, feel free to ask.
A gardener is installing fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden is 8x +8. Which expression represents the lenght of the garden?
Answer:
creo que es la respuesta 8× +8=72
can image 2 be the reflected figure
Answer:
Is there supposed to be a picture?
Step-by-step explanation:
Answer:
we need the image
Step-by-step explanation:
y = 3 • 5x
what is the domain and the range
Let f(x) = -20x^2 + 14x + 12 and g(x) = 5x - 6. Find f/g and state it’s domain.
The total of the ages of rachel’s siblings if she has one sibling that is 3 years younger and three siblings that are 2,4, and 5 years older. translate the word problem to a math equation
i also need the ans TT.............
Andres is on the tennis team. Last year he bought 7 tubes of tennis balls. The year before he bought k tubes. Each tube holds three balls.
a. Write an expression using parentheses to describe how many tennis balls Andres bought in the last two years.
b. Given that k=6, evaluate your expression using the distributive property.
Answer:
A. 7(3) + 3k = total amount of tennis balls bought in 2 years
B. 39 tennis balls
Step-by-step explanation:
B. 7(3) + 3(6)
21 + 18 = 39 tennis balls
Let a and b be positive integers. 239 x 23
Answer:
A
Step-by-step explanation:
a^m * a^n = a^(m+n) so 23^a * 23^b = 23^(a+b)
uincy feeds his dog 2.75 cups of dog food each day. Each cup of dog food costs $1.25. He multiplies the numbers together to determine how much it costs to feed his dog each day. Which expression will result in the best estimate for Quincy to use to check his multiplication?
Find total number of solutions of [x]^2= x + 2 {x}, where (.) and {.} denotes the greatest integer
function and fractional part.
Answer:
Step-by-step explanation:
There are only 5 solutions:
x=-1
x=-1/3
x=0
x=1
x=8/3
See the graph
In blue: y=[x]²
In red : y=x+2(x-[x])
Integral sin(3x+3)dx
Step-by-step explanation:
steps are in picture above.
Note:if you have any question please let me know.
In order to go in the field trip you must accuse 75 positive behavior points you found out that you have 45% of the points necessary to go how many points do you have
Answer:
33.75
Step-by-step explanation:
1. figure out equation - 45% of 75.
2. 45% = 45/100 = 45 ÷ 100
3. 45/100 /75
Write 0.76 as a fraction.
Answer:
76/99
Step-by-step explanation:
76 ÷ 99 = 0.767676....
Answer:
19/25 is the fraction of 0.76
Step-by-step explanation:
its 0.76
1. When adding two integers, what will the sign of the sum be if: c. one integer is positive and one integer is negative?
Answer:
Step-by-step explanation:
The largest absolute value gets the sign.
To use an example
4 - 8
Think money for a moment. You have 4 dollars in your pocket. You owe your mother 8 dollars. Where are you?
You should think you are 4 dollars in debt. That being the case, the sign of the answer is minus.
4 - 8 = -4 Eight is the largest number if its absolute value is taken. Absolute value means you turn it positive and subtract.
Suppose the question is
-9 + 5 Again money. You have 5 dollars in your pocket, but this time you owe mom 9 dollars
She wants her -4 dollars right now.
Which numbers can be divided by 6 with no remainder? Select all that apply. 114 8 18 204 106 221
Answer:
They are: 114, 18, 204.
s = n(a+1) for a
please answer asap
Step-by-step explanation:
for a=
[tex] \frac{s - n}{n} [/tex]
Berny bought a soft drink for 2 dollars
and 6 candy bars. He spent a total of
20 dollars. How much did each candy bar cost
bar cost?
Answer:
3
Step-by-step explanation:
Given:
Berny spent 20 dollars total
He spent 2 dollars on a soft drink
He bought 6 candy bars
Solution:
Amount spent on candy bars = total amount spent - amount spent on soft drink.
Amount spent on candy bars = 20 - 2 = 18
Cost of each candy bar = total amount spent on candy bars / # of candy bars bought
Cost of each candy bar = 18/6 = 3
Answer: Each candy bar costs $3
Step-by-step explanation:
Set variables
Soft drink = $2
Candy bars = $6x
Let x be the cost for each candy bar.Total cost = $20
Set equation
2 + 6x = 20
Subtract 2 on both sides
2 + 6x - 2 = 20 - 2
6x = 18
Divide 6 on both sides
6x / 6 = 18 / 6
x = 3
Hope this helps!! :)
Please let me know if you have any questions
Write a variable expression for each of following situations. Use b to represent "a full box of pencils.
a. A full box of pencils with 3 extra pencils.
b. Three full boxs of pencils.
Answer:
a. b + 3 extra pencils
b. 3b
Hope that's correct
Jaulas father throws Kayla a graduation party that costs $773. He pays the DJ $250, $75 for the cake, and $4 per party guest for food. How many guests were at the party?
Answer:
112 guests
Step-by-step explanation:
I. If her total cost is 773$
When Total = DJ + Cake + Guest
773 = 250 + 75 + 4(x)
773 = 325 + 4(x)
773 - 325 = 4(x)
448 = 4x
x = 448/4
x = 112
That makes guests are 112
what is the value of x in the equation 11+7x=-17
[tex]\\ \rm\Rrightarrow 11+7x=-17[/tex]
[tex]\\ \rm\Rrightarrow 7x=-7-11[/tex]
[tex]\\ \rm\Rrightarrow 7x=-28[/tex]
[tex]\\ \rm\Rrightarrow x=\dfrac{-28}{7}[/tex]
[tex]\\ \rm\Rrightarrow x=-4[/tex]
Answer: x = -4
Step-by-step explanation:
Given equation
11 + 7x = -17
Subtract 11 on both sides
11 + 7x - 11 = -17 - 11
7x = -28
Divide 7 on both sides
7x / 7 = -28 / 7
[tex]\boxed{x=-4}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Solve the equation -2x = -3x + 14
Evaluate the expression x² - 3y + 12 for x and y = 5
#1
[tex]\\ \sf\Rrightarrow -2x=-3x+14[/tex]
[tex]\\ \sf\Rrightarrow -2x+3x=14[/tex]
[tex]\\ \sf\Rrightarrow x=14[/tex]
#2
[tex]\\ \sf\Rrightarrow x^2-3y+12[/tex]
[tex]\\ \sf\Rrightarrow 5^2-3(5)+12[/tex]
[tex]\\ \sf\Rrightarrow 25-15+12[/tex]
[tex]\\ \sf\Rrightarrow 10+12[/tex]
[tex]\\ \sf\Rrightarrow 22[/tex]
Which answer choice correctly shows 343 written as a Roman numeral?
A. CCCVLIII
B.CCCXLII
C.CCCXLIII
D.CCCXXXXIII
Answer:
C.(CCCXLIII)
Step-by-step explanation:
Please help!
Please do not just give the answer, also explain please because I need to know how to do this.
Find the value of X
Answer:
x = 6.5
Step-by-step explanation:
In order to solve this problem, you need to use trigonometry (sin, cosine, tangent).
Sin = opposite/hypotenuse
Cosine = adjacent/hypotenuse
Tangent = opposite/adjacent
We need to use tangent in this case because 10 is the opposite side from the 57° angle, and x is right next to it, making it adjacent. So, our equation would look like this:
tan (57)° = 10/x
Multiply both sides by x
x (tan (57)°) = 10
Divide both sides by tan (57)°
10 / tan (57)° = 6.49408 = 6.5
Step-by-step explanation:
We are given two angles measures and one side. Notice the given angle and the side that is opposite to that given angle is given. We need to find side x. But can we also find the angle opposite of the side we are trying to find. Yes we can
Remeber that triangles interior angles add up to 180.
Remeber that triangles interior angles add up to 180.One angle measure 90 and the other measure is 57 so
[tex]90 + 57 + x = 180[/tex]
[tex]x = 33[/tex]
So the angle opposite of the side we are trying to find is 33.
Since we know two angles and two sides that are opposite of those two angles respectively, we can use what is called Law of Sines
[tex] \frac{b}{ \sin(b) } = \frac{c}{ \sin(c) } [/tex]
where the numerator are the side measures, and the denominator are the angle measures.
Plug in the respectively values. Angle 57 is opposite of 10 and Angle 33 is opposite of x.
[tex] \frac{10}{ \sin(57) } = \frac{x}{ \sin(33) } [/tex]
Multiply both sides by sin 33 to isolate x.
We get
[tex]x = 6.494[/tex]
Round if needed
In other words, apply law of sines when you have two angles and two sides that are opposite of those angles respectively.
[tex]\sqrt{9x^2[/tex]
Answer:
3x
Step-by-step explanation:
[tex] \sqrt{9 {x}^{2} } [/tex]
[tex] \sqrt{9} \sqrt{ {x}^{2} } [/tex]
[tex] \sqrt{ {3}^{2} } \sqrt{ {x}^{2} } [/tex]
[tex] \sqrt{ {3}^{2} } x[/tex]
[tex] = 3x[/tex]
is 16 a natural, whole, integer, rational or irrational number?
Answer:
16 is a natural, whole and integer
Step-by-step explanation:
16 is a natural, whole and integer
it is not rational or irrational because
rational numbers are written in p/q as well as irrational
natural numbers start from 1 till infinite
whole numbers start from 0 to infinite
integers include all the positive and negative numbers