Answer:
2x-18
Step-by-step explanation:
2(x-9)
distribute the 2 in the ( )
2x-18
Hope this Helps!!!
Simplify: (3+√5)(4-√5)
Answer:
7+√5
Step-by-step explanation:
Answer:
7+[tex]\sqrt{5}[/tex]
Step-by-step explanation:
-8s-28>4 is what? I have to solve for s
Answer:
Step-by-step explanation:
-8s-28>4
-8s-28+28>4+28
-8s>32 we divide by 8
-s>4 we multiply by -1 and we will change the sign because of this
s<-4
Answer:
s<-4
Step-by-step explanation:
another person did it i think ^
|
Which decimal is equivalent to -31/8
Answer:
-3.875
Step-by-step explanation:
Answer:
-3.875
Step-by-step explanation:
My answer is rounded to the nearest thousandths by the way! Hope I helped.
Need this one quick as well, sorry.
The relative frequency table shows the results of a survey in which parents were asked how much time their children spend playing outside and how much time they spend using electronics. A 4-column table with 3 rows titled time spent by children. The first column has no label with entries at least 1 hour per day outside, less than 1 hour per day outside, total. The second column is labeled at least 1 hour per day using electronics with entries 2, 42, 44. The third column is labeled less than 1 hour per day using electronics with entries 14, 6, 20. The fourth column is labeled total with entries 16, 48, 64. Given that a child spends at least 1 hour per day outside, what is the probability, rounded to the nearest hundredth if necessary, that the child spends less than 1 hour per day on electronics? 0.22 0.25 0.70 0.88
Answer:
D 0.88
Step-by-step explanation:
The probability that a child spends less than 1 hour per day on electronics is 0.88.
What is probability?
This is a term that has to do with the likelihood or the chances of something occurring.
The total of spending a day outside = 16
The total of spending less than 1 hour on electronics is 14
The probability would be = 14/16
= 0.875 * 100
= 88% or 0.88
Read more on probability here: https://brainly.com/question/14736149
#SPJ2
Dora's family bought a bag of oranges. There are 6 people in Dora's family. If they ate 3/8 of the oranges, what fraction of the bag of oranges remained?
Answer:
Step-by-step explanation:
the bag of oranges is 8/8
they ate 3/8
8/8-3/8=5/8 left
Which is the best first step and explanation for solving this system of equations 3x + y = 7 x + y = 3
Answer: Add the two equations together to eliminate y
Step-by-step explanation:
X+y=3
4x-y=7
I would use elimination since one equation has +y and one equation has -y
Add the two equations together
X+y=3
4x-y=7
-------------------
5x = 10
25t=12.5
find the value of t
Answer:
t = 0.5
Step-by-step explanation:
Divide both sides by 25.
t = 12.5/25
t = 0.5
Mr. Jefferson wants to sell his truck for $4800 tommy offered him 4/5 of the asking price What amount did Tommy offer
Answer:
$3840
Step-by-step explanation:
4/5 = 80%
20% of $4800 = $960
$4800 - $960 = $3840
..........................................
Hey again!
The answer to your question is 4/3
This is because it is larger than one, so it would make it bigger than the original drawing.
Hope it helps and let me know if there's anything else. Have a great day!
A citrus grower purchased 25 orange trees and 20 grapefruit trees for $290. The next week, at the same prices, the grower bought 20 orange trees and 30 grapefruit trees for $330. Find the cost of an orange tee and the cost of a grapefruit tree.
Answer:
The cost of an orange tree is $ 6 while that of a grapefruit tree is $
Step-by-step explanation:
Let x be the cost of an orange tree and y be the cost of a grapefruit tree. In the first week, the citrus grower purchased 25 orange trees and 20 grapefruit trees for $290, so 25x + 20y = 290 (1).
In the next week, the grower bought 20 orange trees and 30 grapefruit trees for $330. So, 20x + 30y = 330 (2)
From (2) y = (330 - 20x)/30 = (33 - 2x)/3
substituting y into (1), we have
25x + 20[(33 - 2x)/3] = 290
multiplying through by 3, we have
75x + 20(33 - 2x) = 870
expanding the bracket, we have
75x + 660 - 40x = 870
collecting like terms, we have
75x - 40x = 870 - 660
35x = 210
dividing both sides by 35, we have
x = 210/35
x = 6
substituting x = 6 into y, we have
y = (33 - 2x)/3
= (33 - 2(6))/3
= (33 - 12)/3
= 21/3
= 7
So the cost of an orange tree is $ 6 while that of a grapefruit tree is $ 7.
i dont know plz help
1. Q1) Which number is missing from this prime factor
tree?
Answer:
2
Step-by-step explanation:
16
2x8
2x4
2x2
Please helppp meeeeeeeeeeeeeeeseseeedeeeeeee
Answer:
The solution x > 10 can be represented in two ways such as:
Interval Notation: (10, ∞)Inequality Notation: x > 10Step-by-step explanation:
Let 'x' be the solution to the inequality
From the given line, it is clear that
x > 10
It means the value of x is greater than 10, which means the solution contains all the positive real numbers greater than 10.
From the number line, it is clear that the number line would include all the numbers on the right-hand side of the 10 number.
The number 10 is not included; thus the number line indicates an open circle on 10, meaning 10 is not include in the solution.
Thus, the solution x > 10 can be represented in two ways such as:
Interval Notation: (10, ∞)Inequality Notation: x > 106 - 3w = -27
I need help on this I don’t get it
Amy wants to buy a new set of paints. At store A, the cost is $22.00, and she has a coupon for 20% off. At store B, the cost is $22.50, and she has a coupon for $5 off. Which store has the better buy, and why?
Answer:
Store B
Step-by-step explanation:
Store A
20% is just 1/5 in percent form
22.00= 22*1/5 = 22/5 = 4.40
22.00-4.40=17.6
Store B
22.50-5=17.5
Now you can see that 17.5 is less than 17.6 by 0.1
True or False To find the circumference of a circle you multiply the diameter by pi
Answer:
false
Step-by-step explanation:
Formula: c=2[tex]\pi[/tex]r
Circumference= two times pi times radius
It says round all calculations to one decimal point
Pls show workings it due in a hour
Answer:
[tex]2\sqrt{5}+\sqrt{29}+\sqrt{53},\\\approx 17.14\:\mathrm{units}[/tex]
Step-by-step explanation:
The distance between two coordinates is given by:
[tex]d=\sqrt{(\Delta x)^2+(\Delta y)^2}[/tex], or [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex].
The distance between each of the coordinates of the triangle forms the sides of triangle. Therefore, we can add the distance between these coordinates to find the perimeter of the triangle.
The distance between [tex](3, -2)[/tex] and [tex](7, 0)[/tex] is:
[tex]d=\sqrt{(7-3)^2+(0-(-2))^2}=\sqrt{4^2+2^2}=\sqrt{20}=2\sqrt{5}[/tex]
The distance between [tex](3, -2)[/tex] and [tex](5, 5)[/tex] is:
[tex]d=\sqrt{(5-3)^2+(5-(-2))^2}=\sqrt{2^2+7^2}=\sqrt{53}}[/tex]
[tex]d=\sqrt{(7-5)^2+(0-5)^2}=\sqrt{2^2+5^2}=\sqrt{29}[/tex].
Therefore, the total perimeter of the triangle is:
[tex]\fbox{$2\sqrt{5}+\sqrt{29}+\sqrt{53}\:\checkmark$}[/tex].
true or false? the domain of every rational function is set of all real numbers
why?
♡Answer:♡
Its false, why? bc the domain of every rational function is need not be the set of real numbers
♡Step-by-step explanation:♡
♡ ∩_∩
(„• ֊ •„)♡
┏━∪∪━━━━┓
♡ good luck 。 ♡
┗━━━━━━━┛
The domain values of a rational function are not only restricted to the only set of all real numbers making the given statement false
The domain of a function is the input values of the function for which it exists.
Rational functions are function that can be written as a ratio of two functions. For example given the function f(x) = 2/x-3
The domain values are the input values x. The values of x can be any values either real numbers, integers, or even natural numbers.
This means that the domain values of a rational function are not only restricted to the only set of all real numbers making the given statement false
Learn more here: https://brainly.com/question/18486099
Please help I can figure this out and I have a time limit I need help ASAP!
Answer:
The circle has a circumference of approximately 31.4 square inches.
Step-by-step explanation:
We're told that the diameter is equal to ten inches.
The circumference of a circle is the perimeter of it. And that is equal to the diameter times pi. We're told to use the value 3.14 for pi.
So all we have to do is multiply the diameter (10) by pi (3.14):
10 × 3.14
= 31.4
So the circle has a circumference of approximately 31.4 square inches.
What is....
-5a = -0.2
Answer:
0.04
Step-by-step explanation:
How many dots would be in Figure 17?
Answer:
306
Step-by-step explanation:
can someone SMART find the volume of those 3 boxes? ill give brainliest!!
Answer:
a. 48000 cm3
b. 12 m3
c. 37500 cm3
Step-by-step explanation:
Ben rides the train to work he spends $2.75 per ride his monthly budget for riding the train is 80$ write an equation that shows the number of times N Ben can ride the train each month
Answer: 2.75N = 80
Step-by-step explanation:
Let the the number of times that Ben can ride the train each month be represented by N.
Since Ben rides the train to work he spends $2.75 per ride and his monthly budget for riding the train is $80, this will be represented in an equation as:
2.75N = 80
N = 80/2.75
N = 29 times
what is the degree of the polynomial -x^4+10x^3+x-7
Answer:
7
Step-by-step explanation:
You can find the degree of a polynomial by adding all of the exponents on a specific variable.
ignore that there's an answer I accidently clicked it
Answer:
3) ∆RST is similar to ∆FGH by the SSS Similarity Theorem.
Solve the Equation: 2(6b + 1) = 4(b-5)-2 halp me pls, thank you
Answer:
B= -3
Step-by-step explanation:
So first distribute what you can
12b+2=4b-20-2
Now combine like terms
12b+2=4b-22
Now subtract 2 on both sides
12b=4b-24
Now subtract 4b on both sides
8b=-24
Now divide 8 on both sides
b= -3
The plastic cylinder has a diameter of 2 cm. There is a rectangular 0.6 cm square prism through the middle of the cylinder, extending from the top to the bottom. The height of the cylinder is 6 cm. Find the volume of the cylinder without the prism.
Answer:
The volume of the cylinder without the prism is approximately 16.690 cubic centimeters.
Step-by-step explanation:
The volume of the cylinder without the prism can be defined as the volume of the entire cylinder ([tex]V_{cy}[/tex]), measured in cubic centimeters, minus the volume of the prism ([tex]V_{pr}[/tex]), measured in cubic centimeters. That is:
[tex]V = V_{cy}-V_{pr }[/tex] (1)
[tex]V = \frac{\pi}{4}\cdot D^{2}\cdot h - l^{2}\cdot h[/tex]
[tex]V = \left(\frac{\pi}{4}\cdot D^{2}-l^{2} \right)\cdot h[/tex] (2)
Where:
[tex]D[/tex] - Diameter of the cylinder, measured in centimeters.
[tex]l[/tex] - Side of the square prism, measured in centimeters.
[tex]h[/tex] - Height of the square prism, measured in centimeters.
If we know that [tex]D = 2\,cm[/tex], [tex]l = 0.6\,cm[/tex] and [tex]h = 6\,cm[/tex], then the volume of the cylinder without the prism is:
[tex]V = \left[\frac{\pi}{4}\cdot (2\,cm)^{2}-(0.6\,cm)^{2} \right]\cdot (6\,cm)[/tex]
[tex]V \approx 16.690\,cm^{3}[/tex]
The volume of the cylinder without the prism is approximately 16.690 cubic centimeters.
please help ill gibe 20 points!!
Answer:
A
Step-by-step explanation:
If Tim only has $25, then he can't buy anything past $25.
Answer:
It is A
Step-by-step explanation:
Thanks for the points
Solve forx: -6 < x - 1 < 9
Answer:
-5< X <10
Step-by-step explanation:
-6+1 < x < 9+1
-5 < x < 10
Answer:
- 5 < x < 10
Step-by-step explanation:
Given
- 6 < x - 1 < 9 ( add 1 to all 3 intervals )
- 5 < x < 10