Answer:
D
Step-by-step explanation:
Answer:
it is D im 99% sure
Step-by-step explanation:
dddddddd
Jamar's car used 1/40 of a gallon to travel 3/8 of a mile. How many miles can the car go on one gallon of gas?
Answer:
15 miles.
Step-by-step explanation:
3/8 x 40 = 120/8
now divide,
120/8 = 15
HELPPPPPPP PLEASE AND BRAINLY STOP ASKING ME TO WRITE MORE IM IN URGENCY
Answer: 1,431
Step-by-step explanation:
split the thing into two rectangular prisms
small prism dimensions: 18 x 2 x 3
multiply the dimensions to get 108
large prism dimensions: 7 x 21 x 9
multiply the dimensions to get 1,323
add 1,323 and 108 together to get 1,431
PLEASE please help me I can't deal with math anymore it's so confusing
Bradley's bike has an odometer, which shows how far he rides. Bradley rode 2.7 miles on
Monday, 2.4 miles on Tuesday, and 2.8 miles on Wednesday.
How many days did Bradley ride more than 2 miles?
Answer:
7.9
Step-by-step explanation:
I added 2.7 + 2.4 + 2.8, lmk if it's wrong.
Find the solution of the system of equations.
-2x - 9y = -3
--7x - 9y = -33
Answer:
x = 6 and y = -1
Step-by-step explanation:
hope this helps
Answer:
x= 6 and y= -1
Step-by-step explanation:
-2x - 9y = -3
-7x - 9y = -33
I'm going to be solving by elimination. However, you can solve using substitution as well.
So the first step is to eliminate one of the variables. In my opinion, what's easiest is eliminating the y variables. To eliminate you want to variables (that are the same) to equal 0 and cancel out. To do this, all I have to do is subtract. When I subtract I get 0 as shown below. I will also subtract the other variables and numbers in the equations because that's how elimination works.
-2x - 9y = -3
-7x - 9y = -33
5x = 30
-2 - (-7)=5 and -3 - (-33)= 30
There's no solution for the y variable because -9 - (-9)=0, which cancels out so it doesn't have to be written.
after that you get x=6 because you divide by 5 on both sides.
All that's left is to plug in 6 to one of the equations:
-2(6) - 9y= -3
-12 - 9y= -3
+12 +12
-9y= 9
Divide both sides by -9 to get y= -1
A researcher recorded the number of e-mails received in a month and the number of online purchases made during that month for 50 people with an online presence. The resulting data were used to conduct a hypothesis test to investigate whether the slope of the population regression line relating number of e-mails received to number of online purchases is positive. What are the correct hypotheses for the test?
a. H0:β1=0Ha:β1≠0
b. H0:β1=0Ha:β1>0
c. H0:β1=0Ha:β1<0
d. H0:β1>0Ha:β1=0
e. H0:b1=0Ha:b1≠0
Answer:
B
Step-by-step explanation:
College Board
If g(x) = -3(x) - 5 then g(?) = 25
10
-20
5
-10
Answer:
D) -10
Step-by-step explanation:
We will assign g(x) to be equal to 25, and then solve for x:
25 = -3x-5
30 = -3x
10 = -x
-10 = x
So D is correct
Answer:
-10 is correct option
Step-by-step explanation:
g(x)=-3(x)-5
g(-10)=-3(-10)-5
=30-5
=25
Interactive digital version available - link: https://access.openupresources.org/curricula/our6-8math/en/supporting-material/7569/index.html
After a while, Jada picks up a coin that seems different than the others. She notices that the next day, only half of the coin is left!
On the second day, only 1/4 of the coin is left.
On the third day, 1/8 of the coin remains.
What fraction of the coin remains after 6 days?
What fraction of the coin remains after 28 days? Write an expression to describe this without computing its value.
Does the coin disappear completely? If so, after how many days?
Answer:
After 6 days 1/64 of the coin will remain, while after 28 days 1/268435456 will remain. Now, it will never completely disappear, since it can always be reduced to a larger number.
Step-by-step explanation:
Since after a while, Jada picks up a coin that seems different than the others, and she notices that the next day, only half of the coin is left, while on the second day, only 1/4 of the coin is left and, on the third day, 1/8 of the coin remains, to determine what fraction of the coin remains after 6 days, what fraction of the coin remains after 28 days and determine if the coin will disappear completely, the following calculation must be performed:
1/2 ^ 6 = X
0.015625 = X
1/64 = X
1/2 ^ 28 = X
0.0000000037252902984619140625 = X
1/268435456 = X
Thus, after 6 days 1/64 of the coin will remain, while after 28 days 1/268435456 will remain. Now, it will never completely disappear, since it can always be reduced to a larger number.
I need help please ?!!!!
Which table shows a linear function?
-4
- 1
1
2
3
у
8
2
2
4
6
-16
-8
х
-6
-2
0
1
3
-2.
2
y
0
-2
A positive angle less than 360 that is coterminal with -725 degrees is
The positive angle is less than 360 which is coterminal with -725 degrees is 85 degrees.
What are Coterminal Angles?Coterminal angles are those with the same beginning side and the same terminal sides. These angles are in the typical position, although their values differ. They have the same sides, are in the same quadrant, and their vertices are identical. The endpoint sides coincide at the same angle when the angles are rotated clockwise or anticlockwise.
An angle that is coterminal with -725 degrees is an angle that has the same initial and terminal sides as -725 degrees, but its measure is between 0 and 360 degrees.
To determine a positive angle less than 360 that is coterminal with -725 degrees, we can add or subtract multiples of 360 from -725 degrees until we get an angle within that range.
In this case, -725 degrees - (2 x 360) = -725-720= -1445.
So, the positive angle less than 360 that is coterminal with -725 degrees is -1445 degrees + 360 = 85 degrees.
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Match the values with the statistical measures for these data points.
20, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26
Answer:
20, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26
Step-by-step explanation:
median (middle number) is (23 + 24) / 2 = 47/2 = 23.5 <== median
Q1 = (21 + 22) / 2 = 43/2 = 21.5 <== lower quartile
Q3 = (25 + 25) / 2 = 50/2 = 25 <== upper quartile
Your welcome! (Please correct me if im wrong!)
Please mark brainiest
Need help take your time and thx
Answer:
(x-4) (x+1)
step by step explanation:,
Find the area of the shape below. 5yd 7yd
Answer:
45.99 yd²
Step-by-step explanation:
The square is 5 yd × 7 yd
35 yd²
The circle = 2 × pi × radius
2 × 3.14 × 3.5
21.99115 rounds to 21.98 yd²
Since it is have a circle,
21.98 yd² ÷ 2
10.99 yd²
35 yd² + 10.99 yd²
45.99 yd²
can u plz help me ok i need help
Answer:
the answer is 47 sprinklers
Step-by-step explanation:
so the system is 188 and there is one sprinkler every 4 feet
so 188/4 which would give u 47
Ms.Sandy Bought A Package Of Pencils. Out Of Every 10 Pencils, 8 Are Black. If There Are 30 Pencils In The Pack, What Fraction Of The Pencils In The Pack Are Black? What Percent Of The Pencils In The Pack Are Black? What Fraction of The Pencils In The pack Is Black?
Answer:
Step-by-step explanation:
Fraction: 24/30 or 4/5 Percentage: 80%
At the Museum of Modern Art , 5 students share 4 subs.
How much of a sandwich does each student get?
First to awnser correctly gets brainliest
(Middle School)
Answer:
1.25 of a sandwich
Step-by-step explanation:
5/4=1.25
I'm not sure if you have to round it or not, but I think this would be exact!
Hope this helps!
Help please on my delta maths I’m desperate pleas it’s due by tonight
Answer: $21.60
Explanation: the phone originally costs $24 and is on a discount of 10%. this means that the price after the discount will be 90% of the original price, since the discount is 10% OFF.
to find 90% of 24, multiply 24 by .90, which is the decimal value of 90%.
24 x .90 = $21.60
Nora is definitely getting scammed because there's no way a phone is that cheap
Tell whether each kind of angle is Right, Acute or Obtuse angle. Write your answer inside the box.
Answer:
1. Right Angle
2. Acute Angle
3. Acute Angle
4. Obtuse Angle
5. Right Angle
Step-by-step explanation:
Please mark as brainliest
Juan has four ties, three shirts and four pairs of pants. How many different outfits can he wear if he chooses one Tie, one shirt, one pair of pants of each outfit?
Answer:
48 outfits
Step-by-step explanation:
Using Fundamental Principal of counting
number of outfits that Juan can wear
=number of ties * number of pants * numberof pants
=4*3*4
=48 outfits
The number of different outfits can he wear if he chooses one Tie, one shirt, one pair of pants for each outfit is 48 outfits.
What is the combination?The arrangement of different things or numbers in a number of ways is called a combination.
A permutation is an orderly arrangement of things or numbers. Combinations are a way to choose items or numbers from a collection or group of items without worrying about the items' chronological order.
Given that Juan has four ties, three shirts, and four pairs of pants.
Using the Fundamental Principle of counting,
Number of outfits that Juan can wear
N =number of ties x number of pants x number of pants
N =4 x 3 x 4
N =48 outfits
Therefore, the number of different outfits can he wear if he chooses one Tie, one shirt, one pair of pants for each outfit is 48 outfits.
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Drag each equation to the value that makes it true.
Answer:
5h=60 needs to go in the last one
Step-by-step explanation:
3rd 9-Week Exam
Question: 1-1
Monica is using a coordinate plane to make a design in art class. She wants to reflect a line segment across the x-
axis as part of the design. The line segment has an endpoint at (-7,5) and is 5 units long. Which two ordered pairs
could be the coordinates of the endpoints of the reflection of the line segment?
Answer:
dgfrngssfrhrfhhkthgfgtuthrruyifrhtuturhfnfbhmxvdg4jfdd
Step-by-step explanation:
xdvbbffyeurudgdifhfjdchd8wixsigfir
John can polish 42 tables in 6 hours. What is the ratios of the number of hours to tables?
Answer:
1 : 7
Step-by-step explanation:
Answer:
7:1
Step-by-step explanation:
divide 42 by 6 to get how many he can do in one hour
42/6=7
7:1
Please help?! I'm confused I need help with all of them! and if you can please show your work!! For 50 points!
Answer:
1 x= 23°
2 x= 148°
3 x= 106°
4 x=17.3°
5 x=25°
6 x=30°
7 x=45°
8 x=48°
9 x=44°
How much money is 5 dollars, 10 dimes, and 10 pennies?
Answer:
6 dollars and 10 cents
Step-by-step explanation:
I'm sorry this isn't the answer, but I just want you to know that you are incredible and that I love you for you! You are special to everyone you meet, and should not change who you are. I know your life may be tough, but you are strong and can get through it!
Do the functions have the same concavity? f(x)=-x^2+40x+120f(x)=−x 2 +40x+120
Answer:
1. f(x)=-x^2+40x+120. Answer: it would be the same answer
2. f(x)=−x 2 +40x+120. Answer: look at the both picture
Step-by-step explanation: Hope this help :D
Both functions have the same concavity—they are both concave downward.
How to explain the functionLet's start with the first function, f(x) = -x² + 40x + 120.
First Derivative:
f'(x) = -2x + 40
Second Derivative:
f''(x) = -2
Since the second derivative is a constant (-2), it is negative for all values of x. Therefore, the first function has a concave downward shape.
Now let's move on to the second function, f(x) = -x² + 40x + 120.
First Derivative:
f'(x) = -2x + 40
Second Derivative:
f''(x) = -2
Similar to the first function, the second function also has a constant second derivative (-2) that is negative for all values of x. Therefore, the second function also has a concave downward shape.
In conclusion, both functions have the same concavity—they are both concave downward.
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Need help
1. 15% of what number is 6?
2. 25 is 10% of what number
3. 49 is 35% of what number
4. What is 310% of 65
Thanks
Answer:
1. 40
2. 40
3. 140
4. 210.5
I tried, hope this helps :)
Help me pls I really need help
I think is 200 minutes
The population of China was about 1.39 billion in the year 2013with an annual growth rate of about 0.6\% . Find an equation P(t) that represents the growth function for China. Write your answer in the form a * (b) ^ 2 in billions Provide your answer below:
Answer: 1.39(1.006)^t
Step-by-step explanation:
The equation P(t) that represents the growth function for China is P(t) = 1.39 * ( 1.006)ⁿ.
What is a Function ?A statement that relates two unknown parameters such that one is dependent on the other is called a function.
It is given that
Initial population = 1.39 billion in 2013
Growth Rate = 0.6%
Let a represent the initial population
b is the growth rate
and 2 be the elapsed year from 2013
and let the population at any given year is P(t)
Then the equation formed is
P(t) = a * bⁿ
P(t) = 1.39 * ( 1.006)ⁿ
Therefore the equation P(t) that represents the growth function for China is P(t) = 1.39 * ( 1.006)ⁿ.
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If F(x) = x - 5 and G(x) = x2, what is G(F(x))?
Answer:Step-by-step explanation:
G(F(x))=(x - 5)²
