Answer:
2:1.
Step-by-step explanation:
The area of a red curved surface = 2πr^2.
The area of the yellow flat surface = πr^2.
This is the case for all the hemispheres.
Therefore the required ratio = 2πr^2 : πr^2
= 2:1.
If angle 1 and angle 2 are vertical angles, and the m<1 = 10x - 9 and m<2 = 4x + 15. Find the value for x.
Answer:
x = 4
Step-by-step explanation:
Vertical angles are equal.
m∠1 = m∠2
10x - 9 = 4x + 15
Add 9 to both sides
10x = 4x + 15 + 9
10x = 4x + 24
Subtract 4x from both sides
10x -4x = 24
6x = 24
Divide both sides by 6
x = 24/6
x = 4
What is the relationship between the number of sides in a regular polygon and
number of lines of symmetry?
Answer:
Divide 360 by the difference of the angle and 180 degrees. For example, 360 divided by 15 equals 24, which is the number of sides of the polygon. Divide 360 by the amount of the exterior angle to also find the number of sides of the polygon.
Can someone please help me
Answer:
Mark me as a Brainliest plsStep-by-step explanation:
we know that
the area of the rectangle = Length x Width
here
Area = 108.35 m²Length = 7.8 mFind :-The width measurement of the rectangle
Solution :-
Area of the rectangle = Length x Width
=> 108.35 = 7.8 x width
[tex]width \: = \frac{108.35}{7.8} \\ = > width \: = 13.891025641 \: m[/tex]
Conclusion :-The width of the rectangle is 13.891025641 m option C) 13.89 m is the correct answer
plz help w maths lit
Answer:
WHAT
Step-by-step explanation:
When Ms. Perez has excellent service at a restaurant, the amount she leaves for a tip t is at least 20% of the cost of the meal c. Write a model representing the amount of the tip.
Answer:
t ≥ 0.2c
Step-by-step explanation:
Her tip is at least 20% of the cost of the meal, so her tip is greater than or equal to 20% of the cost of the meal
tip ≥ 20% of the cost of the meal
t ≥ 20% of c
Another way of writing "20% of c" is multiplying the two values, so we have
20% of c = 20% * c
t ≥ 20% * c
To convert from a percentage to a decimal, we can divide the percentage by 100. Here, we have
20% = 0.2
t ≥ 0.2 * c
Solve for x.
X
I need the. Value please
Answer:
45 degrees
Step-by-step explanation:
Hi there!
We're given that one of the triangle's exterior angles is 90 degrees. Using that, we can solve for the corresponding interior angle by subtracting 90 from 180 degrees:
180-90 = 90
Given that the two legs of this right triangle are of equal length, we know that the remaining two angles both measure x. Knowing that the sum of the interior angles in a triangle is 180 degrees, we can set up an equation:
x+x+90=180
2x=90
x=45
Therefore, x is 45 degrees.
In fact, any right triangle with legs of equal length will be a 45-45-90 triangle, meaning the other two angles measure 45 degrees.
I hope this helps!
Compare using <, >, or =.
3 7/8 ___ 3 5/6
=
<
>
please explain thank you
Answer:
3 7/8 > 3 5/6
Step-by-step explanation:
i have same question but on edge i tested see if the other answer was right and it was good job and good luck :p
A mother is now nine times as old as her son. In four years' time she will be five times as old as her son.What are their present ages
Answer:
son = 4
mom=36
m = 9s
m + 4 = 5(s+4)
m + 4 = 5s + 20
9s + 4 = 5s + 20
4s = 16
s = 4
m = 36
Step-by-step explanation:
Geometry question. Parallel lines. “Find value of x that will make A||B”
Answer:
x = 11
Step-by-step explanation:
These angles are alternate exterior angles which means they are equal to each other:
5x + 9 = 6x - 2
5x - 6x = -2 - 9
-x = -11
x = 11
your friend says that The absolute value equation |3x+8|-9=-5 has no solution because the constant on the right of the equation is negative is your friend correct explain
Answer:
No, because if you simplify this equation, you will got |3x+8|=4, which is a positive number.
Step-by-step explanation:
I attached a gra of this equation belo, hope this help
Find the length of the missing side ( nearest tenth
Answer:
43.4 yd
Step-by-step explanation:
[tex]45^{2}[/tex]-[tex]12^{2}[/tex]
2025-144=1881
[tex]\sqrt{1881}[/tex]
43.37049
43.4
100 POINTS AND CROWNED BRAINLIEST!!! PLS HELP ONLY 30 MINS LEFT!!
Determine whether each equation represents y as a function of x.
y= l 4-x l
Solve for x.
21)
60°
8x
80°
Answer:
x = 5
Step-by-step explanation:
Sum of angles = 180, so
60 + 80 + 8x = 180
140 + 8x = 180
8x = 180 - 140 = 40
x = 40/8 = 5
Order the following numbers from least to greatest. 4,-2,-3,5,-1
Answer:
-3,-2,-1,4,5
I really hope this helps you a lot!
Step-by-step explanation:
Answer:
-3,-2,-1,4,5..
Step-by-step explanation:
janh xD I urself ds
what is the domain of y=cos 0
Answer:
The domain of y = cos θ is all real numbers. This is because any real number can be plugged in for θ and y will be equal to a real number. This can be shown graphically because the y = cos θ will go on infinitely both to the right and left.
Given m || n, find the value of x and y.
Answer:
x = 60
y = 60
Step-by-step explanation:
To find y (y and 120 are supplementary angles):
y + 120 = 180
y = 180 - 120
y = 60
x = y (because of corresponding angles)
x = 60
calculate the length of the legs of an isosceles triangle.The base is less than the other congruent legs by two units.The perimeter of the triangle is 22 meter .
Answer:
Sides = 8 each and base = 6
Step-by-step explanation:
Let congruent legs = x, then the base is x - 2 so,
P = x + x + (x - 2)
22 = 3x - 2
24 = 3x
8 = x (sides)
base = 8 - 2 = 6
If it says product what does it mean? Does it mean addition subtraction equals division or multiplication?
Answer:
you have to give common from
Answer:
Multiplication
Step-by-step explanation:
A factor times a factor equals the product. The answer to a multiplication problem is called the product.
what is 46 divided by 532
Answer:
46 ÷ 532 is 0.08646
hope it's helpful
Answer:
0.08646616541
Step-by-step explanation:
46 ÷ 532 = 0.086466165
hope its helpful
mark me as brainlest
Please help me with number 5.
Answer:
D
Step-by-step explanation:
multiply the packs with the amount of bottles in each one. then subtract the number you got when you multiplied 4x8. I'm not good at explaining but hope this helps
What is 8^2 + 15^2= c^2
Answer:
[tex]8^2\:+\:15^2=\:c^2[/tex]
c = 17
Step-by-step explanation:
This is the Pythagorean theorem
Answer:
c^2= 64 + 225
c^2=289
c= √289
c= 17
I hope it's helpful
Thank you !
please help i hate geometry
Answer:
a) 4/5 b) -3/4
Step-by-step explanation:
lines that are parallel have the same gradient. So the gradient is 4/5
Lines that are perpendicular have "opposite reciprocal" gradient: flip the sign, then flip the numerator and denominator (top/bottom). So the gradient is -3/4
Answer:
a) 4/5 b) -3/4
Step-by-step explanation:
lines that are parallel have the same gradient. So the gradient is 4/5
Lines that are perpendicular have "opposite reciprocal" gradient: flip the sign, then flip the numerator and denominator (top/bottom). So the gradient is -3/4
(PLEASE HELP ASAP PLEASE EXPLAIN ALSO PLEASE AND THANK YOU)
Answer:
Step-by-step explanation:
Positive rational numbers will be in the right side of the number line.
Negative rational numbers will be in the right side of the number line.
18.256 will be lying in between 18.25 and 18.26
Khan Academy Shape: Pentagon Khan Academy HELP PLEASE - x=
Answer:
x=100 degrees
Step-by-step explanation:
Answer:
x = 100 degrees
Step-by-step explanation:
Which function represents this graph?
A f(x)==x-2
B f(x) = -x-2
C f(x)=-4x? - 2
D f(x)=4x-2
Answer:
A
Step-by-step explanation:
The new graph is the inverse of the time vs height graph, but I’d not a function. How would you restrict the domain on the original function to make it invertible?
Using inverse function concepts, it is found that the domains that make the function invertible are: [tex]t \in [0, 2.5][/tex] of [tex]t \in [2.5, 5][/tex].
-----------------------------------
A function is invertible if each output is related to only one value of the input.-----------------------------------
In the graph given in this question, other than the maximum height at [tex]t = 2.5[/tex] seconds, all outputs are related to two input values.To be invertible, the domain has to be divided at the half-way point, either between 0 and 2.5 seconds, or between 2.5 seconds and 5 seconds. This way, each output will be related to only one input.Thus, the domains that make the function invertible are: [tex]t \in [0, 2.5][/tex] of [tex]t \in [2.5, 5][/tex].
A similar problem is given at https://brainly.com/question/13160937
PLEASE HELP ANSWER THIS THNAK YOU
Answer:
112 cm (red, 4)
Step-by-step explanation:
length = b
width = a
b = 7a
42 = b - a
42 = 7a - a
42 = 6a
a = 7 => b = 7a b = 7*7 = 49
Perimeter = 2*(a+b)
= 2*(7+49)
= 2*(56)
= 112 cm
HELPP ILL HIVE BRAINLIEST
Answer:
part a: two is the y intercept because the line intercepts at two on the y-axis
part b: i don't know but gl
Find the value of x. Write your answer as a fraction, if necessary. 4/9, 5/9, x
Answer:
can you give us the expression, please? we'll try to answer it ! but first you need to give us something to work with ':)
Answer:
0.12
Step-by-step explanation:
Robert is buying tickets to a basketball game. Adult tickets cost $4 more than student tickets. He bought 5 adult tickets and 7 student tickets for a total of $104. How much does a student ticket cost?