Answer:
c. x=1,000
Step-by-step explanation:
log x = 3
Imagine that it's log10 x = 3
So, x = 10^3 (10 to the third power)
x = 10 * 10 * 10
x = 1,000
At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtered out.
Use the model to calculate the number of contaminants after the third hour of the experiment.
the answer is not 168.75 cause that is how much filtered/went away. I need to know how much is left after it was filtered.
Answer:
18.75
Step-by-step explanation:
first hour: 400×(1/4) = 100
second hour: 100×(1/4) = 25
third hour: 25×(1/4) = 18.75
but i have to give credit to the first answerer, this is not my answer, though i know how to do it i dont know how to explain it properly.
Sara's office recycled a total of 12 pounds of paper over 4 weeks. How many weeks will it take Sara's office to recycle a total of 48 pounds of paper?
Answer:
16
Step-by-step explanation:
12 pounds: 4 weeks
48 pounds: 16 weeks
HELP MEEE PLEASE
Gilligan sees a ship coming close to the shore he's standing on. He wants to
determine the distance (SD) from the ship to the shore. He walks 130 ft along the
shore from point D to point C and marks that spot. Then he walks 23 ft further and
marks point B. He turns 90 and walks until his location (point A), point C, and point
S are collinear.
o
Answer the following questions making sure to show all your work.
(a) Can Gilligan conclude that triangle ABC and triangle SDC are similar? Why or why
not?
(b) Suppose AB = 90 ft. What can Gilligan conclude about the distance of the ship
from the shore? Explain.
The triangles ABC and SDC are similar triangles
Gilligan can conclude that triangles ABC and SDC are similarGilligan can conclude that the distance of the ship from the shore is 509 ftHow to determine if the triangles are similarFrom the question, we understand points S, C and A are collinear, while line AB and SD are vertical and parallel lines at the either sides of point C.
Hence, Gilligan can conclude that triangles ABC and SDC are similar
How to calculate the distance SD
To do this, we make use of the following equivalent ratio
[tex]SD : 130 = AB : 23[/tex]
Substitute 90 for AB
[tex]SD : 130 =90 : 23[/tex]
Express as fraction
[tex]\frac{SD}{130} =\frac{90}{ 23}[/tex]
Make SD the subject
[tex]SD =\frac{90}{ 23} * 130[/tex]
[tex]SD =509[/tex]
Hence, Gilligan can conclude that the distance of the ship from the shore is 509 ft
Read more about similar triangles at:
https://brainly.com/question/14285697
Which number has only two factors?
A: 6
B: 8
C: 9
D: 11
Answer:
D) 11 cause it is only found form multiplying 1 and 11
Round 59.378 to the nearest hundredth.
Answer:
59.38
Step-by-step explanation:
In the number 59.378, "7" is in the hundredth place. So, we need to round it according to the 7. Anything to the left of 7 doesn't need to be rounded. If we round the thousandths place, 8, up to 7, we get 59.38
Help!!!!!! Math problems
Answer:
(-3,-1)
Step-by-step explanation:
pls giv brainliest
Answer:
(-3, -1)
Step-by-step explanation:
Vertex
__________
The vertex is the highest or lowest point within a parabola. When you look at the point, you can see where it is exactly at.
A car is moving along Highway 138 according to the given equation, where x meters is the directed distance of the car from a given point P at t hours. Find the values of t for which the acceleration is zero, and then find the position of the car at this time.
x = 1/4t^3 + 1/6t^3 - t^2+ 1
Answer:
1111¹5&-78+&%%567;!9098888
Factor the quadratic expression.
3x2 − 8x + 4
Answer:
(3x - 2) (x - 2)
Step-by-step explanation:
im smart
malik buys and sells car parts. he bought two tires for 45.00$
Answer: $213
Step-by-step explanation: I got this question on Algebra Nation
Which compound inequality is represented by the graph?
(A.) -2
(B.) -2_
(C.) x<-2 or x_>4
(D.) x_<-2 or x>4
Answer: Choice C
[tex]x < -2 \ \text{ or } \ x \ge 4[/tex]
========================================================
Explanation:
The blue portion on the left is represented by [tex]x < -2[/tex] as it describes values smaller than -2. Notice the open hole at -2 which indicates we do not include this value. So that's why we go with [tex]x < -2[/tex] instead of [tex]x \le -2[/tex]
The blue portion on the right is represented as [tex]x \ge 4[/tex] describing values that are equal to 4, or larger than 4.
So overall, the entire graph visually represents x values such that [tex]x < -2 \ \text{ or } \ x \ge 4[/tex]
Side note: the "or" means we pick one region or the other, but not both regions at the same time.
Answer:
C
Step-by-step explanation:
Loris has one of each of the following colours of felt-tip pen in her pencil case:
red (R) blue (B) yellow (Y) green (G) purple (P)
She pulls out two random pens.
How many different combinations of pairs of colours are there?
there are 10 different combinations of pairs of colors.
What is the combination?Combinations are ways to choose elements from a collection in mathematics where the order of the selection is irrelevant. Let's say we have a trio of numbers: P, Q, and R. Then, combination determines how many ways we can choose two numbers from each group.
Given, Loris has one of each of the following colors of felt-tip pen in her pencil case: red (R) blue (B) yellow (Y) green (G) purple (P) She pulls out two random pens.
from the formula of combination;
total combination ⁿCₓ = [tex]\frac{n!}{(n-r)! * r!}[/tex]
Where, n = total numbers
r = desired number out of total
In our case
n = 5 and r = 2
Thus, the Total combination = ⁵C₂
Total combination = 5! / (3! *2!)
total combination = 5 *4 /2 = 10
therefore, There are ten distinct ways to pair the colors together.
learn more about combination here:
https://brainly.com/question/13387529
#SPJ2
I need help lol please
Answer:
Step-by-step explanation:
if we need to combine the like terms
-4p+(-6p)=-4p-6p=-10p
choice b
My question is what is 69 x 420?
Once upon a time, there was a lovely princess. But she had an enchantment upon her of a fearful sort, which could only be broken by love's first kiss. She was locked away in a castle, guarded by a terrible fire-breathing dragon. Many brave knights had attempted to free her from the dreadful prison, but none prevailed. She waited in the dragon's keep, in the highest room of the tallest tower, for her true love and true love's first kiss." [Laughing] Like that's ever gonna happen.
[Paper Rustling, Toilet Flushes]
Shrek: What a load of--
[Toilet Door slams]
Shrek hops out his outhouse and his routine like taking a mud shower and farting in his pool.
[♪ All-Star By Smash Mouth Playing]
Steve Harwell: ♪ Somebody once told me the world is gonna roll me, I ain't the sharpest tool in the shed. She was lookin' kind of du mb with her finger and her thumb in the shape of an "L" on her forehead. The years start comin', and they don't stop comin', fed to the rules and I hit the ground runnin', didn't make sense not to live for fun. Your brain gets smart but your head gets du mb. So much to do, so much to see, so what's wrong with takin' the backstreets. You'll never know if you don't go, you'll never shine if you don't glow. Hey, now, you're an all-star. Get your game on, go play. Hey, now, you're a rock star. Get the show on, get paid. And all that glitters is gold, only shootin' stars break the mold. It's a cool place, and they say it gets colder, you're bundled up now, but wait till you get older. But the meteor men beg to differ judging by the hole in the satellite picture. The ice we skate is gettin' pretty thin, the water's getting warm so you might as well swim. My world's on fire, how 'bout yours? That's the way I like it and I'll never get bored. Hey, now, you're an all-star. ♪
[Shouting]
Steve Harwell: ♪ Get your game on, go play. Hey, now, you're a rock star. Get the show on, get paid. And all that glitters is gold, only shootin' stars break the mold. ♪
[Belches]
Villagers: Go! Go!
[Record Scrating]
Steve Harwell: ♪ Go. Go. Go. Hey, now, you're an all-star. Get your game on, go play. Hey, now, you're a rock star, get the show on, get paid. And all that glitters is gold, only shootin' stars break the mold. ♪
Villagers: Think it's in there? All right! Let's get it!
Villager 1: Whoa. Hold on. Do you know what that thing could do to you?
Villager 2: Yeah, it'll grind your bones for its bread.
Shrek: [Laughs] Yes, well, actually, that would be a giant. Now, ogres-- they're much worse. They'll make a suit from your freshly peeled skin.
Villager 3: No!
Shrek: They'll shave your liver. Squeeze the jelly from your eyes! Actually, it's quite good on toast.
Villager 3: Back! Back, beast! Back! I warn ya!
[Gasping]
Villager 3: Right.
[Roaring]
[Shouting]
[Roaring]
[Roaring Continues]
[Shouting Continues]
Shrek: [Whispers] This is the part where you run away.
[Gasping]
Shrek: [Laughs] [Laughing] And stay out! "Wanted. Fairy tale creatures." [Sighs]
Guard 1: All right. This one's full. Take it away!
[Gasps]
Guard 2: Move it along. Come on! Get up!
Captain of the Guards: Next!
Guard 3: Give me that! Your flying days are over.
Captain of the Guards: That's 20 pieces of silver for the witch. Next!
Guard 4: Get up!
Captain of the Guards: Twenty pieces.
Guard 5: Come on!
[Thudding]
Guard 6: Sit down there! Keep quiet!
Bear: [Crying] This cage is too small.
Answer:
28,980
Step-by-step explanation:
69 x 420 = 28,980
Beatifully written story/play!!!
Very innovative and just awesome!!!
Answer:
28980
Step-by-step explanation:
6) Walmart and Target are having deals on Barbie dolls. Walmart is selling 8 dolls for $120 and Target is selling 6 dolls for $102. Which store has the better deals on Barbie dolls? Explain how you know
Answer:
Walmart has the better deal
Step-by-step explanation:
If you do $120/8 dolls you get $15 for each doll at Walmart. If you do $102/6 dolls you get $17 for each doll. You know $15 is less than $17 making it cheaper and a better deal. Target's dolls are $2 more than Walmart. $17-$15=$2
help plssssssssssssssss
Answer:
i think Cfollow meplease
Answer:
it is option B hope it help
your day will full of happiness
HELPPPPPP
Are these pairs a function WHY/WHY NO
(0,3)
(1,6)
(2,12)
(3,24)
(4,48)
(5,96)
Answer:
Step-by-step explanation:
Yes these pairs are a function because no two numbers are the same in any of the (x,y) pairs
PQ=RQ what does b =
...... ....as i said,b = 17
reflect (-6, -7) in the x-axis thanks:)
A cup of Kool-Aid has a mass of 700 grams. The cup by itself has a mass of 80 grams. If the cup has a diameter and a height of 8 cm, what is the density of the Kool-Aid?
If x^2 + y^2 = 10 and xy = -3, what is the value
of (x - y)^2?
A) 12
B) 16
C) 20
D) 25
Answer:
Step-by-step explanation:
[tex]xy=-3,\ x=-\frac{3}{y}\\ \\ x^2+y^2=10\\ \\ \frac{9}{x^2}+x^2=10\\ \\ x^4+9=10x^2\\ \\ x^4-10x^2+9=0\\ \\ (x^2-1)(x^2-9)=0\\ \\ (x-1)(x+1)(x-3)(x+3)=0\\ \\ x=-3,-1,1,-3\ y=1,3,-3,-1\\ \\ (x-y)^2\\ \\ (-3-1)^2=(-4)^2=16[/tex]
WILL GIVE BRAINLIEST
bxvy - xvyb
if b=-2
x= 1
y= -1
v= 3
simplify and substitute
Answer:
Step-by-step explanation:
(-2)(1)(3)(-1) - (1)(3)(-1)(-2)
6 - 6 = 0
Answer:
0
Step-by-step explanation:
(-2)(1)(3)(-1) - (1)(3)(-1)(-2)
6 - 6 = 0
Identify the vertex and
the axis of symmetry of the parabola. Identify points corresponding to P and Q.
PLS HELP TAKIN TEST RN MARKING BRANLIST
okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk what the queston again lol I forgt
What is the slope for this equation in linear function y=2/3x-2
Answer:
2/3
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept.
Zx and Zy are supplementary angles. Zy measures 142º.
What is the measure of Zx?
Answer:
Supplementary angles means the sum will be 180 degrees. So since Zx = 142 degrees, allow: 180 = 142 + Zy. So, 180 - 142 = 38 degrees = Zy.
Step-by-step explanation:
find area round to nearest hundredth
Answer:
area = 693
Step-by-step explanation:
The area of a quadrilateral can be found using the formula; base * height
It is given that the height is 33, the base is 21;
Multiply the two
21 *33 = 693
How many total possible outcomes are there in the sample when you are flipping 3 coins: a penny, a nickel, and a dime?
O4
O 6
08
Jacob went on a fishing trip. This year he caught 30 fish, which is six more than twice the number he caught last year. How many fish did Jacob catch last year?
Answer:
12 fish
Step-by-step explanation:
You need to work this problem backwards. If he caught 30 fish, which was six more than twice the number he caught last year, you would start by subtracting six, leaving you with 24. Then you'd have to divide by 2, because it was twice plus six as many fish, which would give you 12 fish.
[tex]\frac{30-6}{2}[/tex] = x
[tex]\frac{24}{2}[/tex] = x
12 = x
A triangle has sides with eng sof 4 meters, 5 meters, and 7 meters.
Is it a right triangle?
Answer:
no
Step-by-step explanation:
a right triangle will have the same length on all sides
What is the slope of the line through the points,
(-4,2) & (5,-1)
Answer:
-1/3
Step-by-step explanation:
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{-1-2}{5--4}\\m=\frac{-3}{9}=-\frac{1}{3}[/tex]
-39<5x+36 step by step explanation
Answer:
x > -25.
Step-by-step explanation:
-39 < 5x + 36
Subtract 36 from both sides:
-39 - 36 < 5x + 36 - 36
-75 < 5x
5x > -75
Divide both sides by 5:
x > -25.