Answer:
9.4
Step-by-step explanation:
Hopefully this explains it well enough, I can go deeper if needed :)
3x+ 2 =7x -1 what is the answer
Answer:
6x
Step-by-step explanation:
Answer:
x= 3/4
Step-by-step explanation:
3x+2= 7x - 1
-3x -3x
2= 4x - 1
+1 +1
3= 4x
/4 /4
3/4 = x
earth's radius is approximately 4000 mi. about two thirds of the Earth's surface is covered by water. estimate the land area on earth
9514 1404 393
Answer:
67 million square miles
Step-by-step explanation:
The area of a sphere is given by ...
A = 4πr²
So the area of the Earth is approximately ...
A = 4π(4000 mi)² ≈ 2.01×10^8 mi²
The area of the 1/3 that is not covered by water is approximately ...
(2.01×10^2 mi²)/3 = 6.7×10^7 mi²
The land area is estimated to be about 67 million square miles.
Simplify: [tex]\frac{\left(x^{\frac{5}{2}}\cdot 6y^2\cdot \sqrt[3]{y^4}\right)}{12x^{\frac{1}{2}}\cdot \sqrt[4]{x^3}}[/tex]
Answer:
[tex]\frac{1}{2} x^{\frac{5}{4} }y^{\frac{10}{3}}[/tex]Step-by-step explanation:
[tex]\frac{x^{\frac{5}{2} }*6y^2*\sqrt[3]{y^4} }{12x^{\frac{1}{2}}*\sqrt[4]{x^3} } =[/tex] [tex]\frac{x^{ \frac{5}{2} }6y^2y^{ \frac{4}{3} } }{12x^{ \frac{1}{2} }x^{ \frac{3}{4} }} =[/tex][tex]\frac{1}{2} x^{\frac{5}{2} - \frac{1}{2} - \frac{3}{4}}y^{2+\frac{4}{3}}=[/tex][tex]\frac{1}{2} x^{\frac{5}{4} }y^{\frac{10}{3}}[/tex]please let me know if I did it good and lmk if I did anything wrong ( finding area )
Central Angles and Arc Measures Practice
What is X?
Answer: [tex]5^{\circ}[/tex]
Step-by-step explanation:
Given
[tex]\angle DIE=(18x-2)^{\circ}\\\angle DIH=15^{\circ}\\\angle FIG=103^{\circ}[/tex]
from the figure
[tex]\angle HIE=\angle GIF\quad [\text{vertically opposite angles}]\\\angle HID+\angle DIE=\angle GIF\\15^{\circ}+(18x)^{\circ}-2^{\circ}=103^{\circ}\\(18x)^{\circ}=103^{\circ}-13^{\circ}\\\\x=\dfrac{90^{\circ}}{18}\\\\x=5^{\circ}[/tex]
A parallelogram has a base length of 9.3 inches and an area of 56.73 squared inches. Find the height of the parallelogram.
Answer:
the answer is 6.1
Step-by-step explanation:
h= A over B (means you divide) and you get 6.1
Answer:
answer: the height is 6.1
Step-by-step explanation:
Because 56.73 ÷ 9.3 = 6.1 and for parellolograms base x height = area So doing area divided by base length will get us our height! Hope this helps!
What is the total area, in square meters, of the shaded sections of the trapezoid
below?
7 m
9.9 m
10 m
8.6 m
Answer:
84.5m would be the area
Step-by-step explanation:
7m, 10m = 35m
9.9m, 10m= 49.5m
35m + 49.5m+ 84.5m
PLEASEEE HELP MEEEE
NO LINKSSS
Answer:
[tex]\huge\boxed{(2,\ 3);\ (-1,\ 6)}[/tex]
Step-by-step explanation:
[tex]f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right[/tex]
substitute (1) to (2):
[tex]x^2-2x+3=-x+5[/tex] add x to both sides
[tex]x^2-2x+x+3=-x+x+5[/tex]
[tex]x^2-x+3=5[/tex] subtract 5 from both sides
[tex]x^2-x+3-5=5-5[/tex]
[tex]x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}[/tex]
substitute the values of x to (2):
[tex]x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}[/tex]
A total of 42 gallons of a glycol solution needs to be added to a heating water loop to ensure the water does not freeze if there is a heating equipment failure. The glycol solution comes in 1.75-gallon cans. How many cans will be needed? Your answer should be a whole number.
Answer:
Number of cans of glycol solution needed = 24 cans
Step-by-step explanation:
Total glycol solution needed = 42 gallons
Volume of each can of glycol solution = 1.75 gallon
How many cans will be needed
Number of cans of glycol solution needed = Total glycol solution needed / Volume of each can of glycol solution
= 42 / 1.75
= 24
Number of cans of glycol solution needed = 24 cans
What is the sum of 0.5 and 0.3 ?
Answer:
0.8
Step-by-step explanation:
5 x 3 = 8 (Add the "0." at the end) That's all, hope it helped!
Answer:
The answer is 0.8. Think of it like a normal number.
Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10. What is the number?
Answer:
The product of 10 and a number is = 10x Twice that number means 2x 36 less than twice that number= 2x-36. It is given that....The product of 10 and a number is the same as 36 less twice that same number
Step-by-step explanation:
The required number that is Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10, is 8.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
Let the number x,
According to the question,
9 (x - 4) = 2(x + 10)
Simplifying,
9x - 36 = 2x + 20
9x - 2x = 36 + 20
7x = 56
x = 56 / 7
x = 8
Thus, the required number that is Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10, is 8.
Learn more about arithmetic here:
brainly.com/question/14753192
#SPJ2
help please!! like asap
The bear was chosen _____ more times than the elephant as the favorite animal.
11
10
9
8
Answer: 9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
22 - 13 = 9
John is trying to convert an area from meters squared to millimeters squared. He multiplied the area he had by
1,000 and got the wrong answer. What should he have multiplied the original area by?
A) 100
B) 1,000
C) 1,000,000
D) 10
Answer:
1,000,000
Hope this helps <3
Plz help fast will mark brainliest!!!
PLEASE HELP ME!!! THIS IS 8TH GRADE ALGEBRA!!
Answer:
Youre fυcked
How do I find the domain and range of y= -(x-2)^2+3?
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values.
Step-by-step explanation:
Can someone help me with this?
Answer:
Step-by-step explanation:
We first need to figure out how much money Jackie has since Pilar has the same amount of money, but in different coins. Jackie has 24 dimes and 13 quarters, so the amount of money is $2.40 + $3.25 = $5.65; therefore, Pilar has $5.65 also. In order to determine how many nickels and quarters Pilar has, we have to have a system of equations. It's up to us to write the equations we need to solve this. The first equation has to do with the NUMBER of coins Pilar has, the second has to do with the VALUE of each coin. We know that Pilar has only nickels and quarters and that she has a total of 53 coins. So the NUMBER equation is
n + q = 53
The VALUE equation relates how much each coin is worth to the total amount of money it equals:
.05n + .25q = 5.65.
Go back to the first equation and solve it for either n or q. I solved it for n:
n = 53 - q
Plug this into the second equation in place of n now to get:
.05(53 - q) + .25q = 5.65 and
2.65- .05q + .25q = 5.65 and
.20q = 3 so
q = 15. This means that there are 15 quarters. If there are 15 quarters, then there are
n + 15 = 53 nickels and
n = 38 nickels.
the product of twice a number and one less than that same number
Answer:
(2n)*(n-1)
Step-by-step explanation:
Find the measurement parallelogram.
I need help please, thank you.
I need explanation
Answer:
2.) 145°
4.) 50°
Step-by-step explanation:
2.) First find the measure of Angle Y, since they are supplementary;
∠Z + ∠Y = 180
35 + ∠Y = 180
∠Y = 180 - 35
∠Y = 145°
So ∠X would be 145° as well
4.) First find the measure of Angle F, since they are supplementary;
∠C + ∠F = 180
130 + ∠F = 180
∠F = 180 -130
∠F = 50°
So ∠E would be 50°
(I didn't explain it much in detail, since this question is similar to the previous that i answered :)
Hope this helps!
What is 80% of 72 ? pls help due today
Answer:
Step-by-step explanation:
57.6
Answer:
57.6
Step-by-step explanation:
You multiply 72 by .8 because you have to change the percent into a decimal place to multiply it by. 0.8 is 80 hundredths and fractions are numbers out of 100. I hope I could help you :)
help, don't guess. tyyyy
Answer:
[tex]\huge{\textbf{\textsf{{\color{skyblue}{An}}{\blue{sw}}{\red{er}}{\color{red}{:}}}}}[/tex]
0 (zero)
Step-by-step explanation:
The 8-sided die has numbers less than 9. So, they can never be greater than 9.
Find the area of the shaded region. Round to the nearest hundredths place when necessary.
please show work
Answer:
450.25 sq in
Step-by-step explanation:
Subtract area of triangle from area of circle
Area of Triangle:
need to get the radius (which we will use as the height) and double the radius to get the base
Pythagorean Theorem:
21² + 20² = c²
441 + 400 = c²
c = [tex]\sqrt{841}[/tex] which is 29
A(Δ) = 1/2(29)×14.5
= 210.25
Area of Circle:
A = π(14.5²)
= 660.52
Difference = 660.5 - 210.25 = 450.25
x-4 in word form
Please help it’s due today!
Answer:
x minus four
Step-by-step explanation:
Helppppp fasttttt!!
What is the measure of angleR to the nearest degree? TR-35 ST-30 S-69° •31° •53° •58° •80°
In the diagram, the measure of angle R is 53°
Law of sinesFrom the question, we are to determine the measure of angle R
Using the law of sines, we can write that
[tex]\frac{sin R}{r} =\frac{sin S}{s}[/tex]
In the given diagram,
r = 30
S = 69°
s = 35
Thus,
[tex]\frac{sin R}{30} =\frac{sin 69^\circ}{35}[/tex]
[tex]sin R =\frac{30 \times sin 69^\circ}{35}[/tex]
sin R = 0.8002
R = sin⁻¹(0.8002)
R = 53.149°
R ≈ 53°
Hence, the measure of angle R is 53°
Learn more on Law of sines here: https://brainly.com/question/15140698
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true or false: before you add or subtract a radical, you should make sure each radical is completely simplified.
Answer:
true
Step-by-step explanation:
Point R is located at (1, 2) on a coordinate grid. Point S is located at (4, 5) on the same
coordinate grid. What is the distance from point R to point S, rounded to the nearest tenth?
A. 3.2 units
B. 4.6 units
C. 7.6 units
D.
10.0 units
Answer:
4.2 units
most likely answer choice B
Step-by-step explanation:
(1, 2) and (4, 5)
To find the distance between two points, we use the distance formula:
[tex]d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }[/tex]
Let's plug in what we know.
[tex]d = \sqrt{(4 - 1)^2 + (5 - 2)^2 }[/tex]
Evaluate the parentheses.
[tex]d = \sqrt{(3)^2 + (3)^2 }[/tex]
Evaluate the exponents.
[tex]d = \sqrt{(9) + (9) }[/tex]
Add.
[tex]d=\sqrt{18}[/tex]
Evaluate the radical.
d = 4.24
Round to the nearest tenth.
d = 4.2 units
*note: The answer choice is 4.6. I'm not sure if that is a typo on someone's end, but the distance between these two points is exactly 4.24264068712 units.
Hope this helps!
Answer:
C. 7.6 units
Hope it helps!
I need help with this question
Answer:
umm If im correct it is E!!
Select all expressions that are equivalent to
2x + 5(–4x + 10) - (x + 4).
Show your work in the sketch pad that supports your
answer.
(Select all that apply.)
27x + 54
-19x + 46
2x - 30x + 50 - x - 4
2x + 30x + 50 - x +4
2x + 5(–4x + 10) - (x + 4).
-4+10=14
x+4=5-9
2x+5=7x
7+9=18
18-14=4
4 is your answer