Answer:
[tex]\frac{\sqrt{7} +2\sqrt{5}}{\sqrt{7}-\sqrt{5} }\\\\=\frac{\sqrt{7} +2\sqrt{5}}{\sqrt{7}-\sqrt{5} }*\frac{\sqrt{7} +\sqrt{5}}{\sqrt{7}+\sqrt{5} }\\\\ =\frac{(\sqrt{7} +2\sqrt{5})(\sqrt{7} + \sqrt{5} )}{(\sqrt{7}-\sqrt{5})(\sqrt{7}+\sqrt{5})\\ }\\\\=\frac{17 +3\sqrt{35} }{2}[/tex]
Correct I’ll give brainlist no links or will be reported
Answer:
0
Step-by-step explanation:
If you plug two points into the equation y2-y1/x2-x1, you will find the slope or rate of change. In this case I used the points (0,3) and (2,3). Plug them in to get 3-3/2-0. 0/2=0. Therefore, the rate of change is 0.
If this helps please mark as brainliest
Answer:
0
Step-by-step explanation:
there is no rate of change. rate of change means what is the slope or the distance the beginning and end of the line. since it is going in a straight line there is no rate of change.
hope this helped
what is the circrumfrence of a circle with a diameter of 7 feet? Use 3.14 for pi
Answer:
Step-by-step explanation:
if you take the diameter of a circle and put it around the circumference you will need to have 3 and a bit more (pi=3.14) of diameters to cover the whole circumference.
C = pi*d = 3.14 * 7 = 21.98 feet
What is the ratio of the side length of the smaller square to the side length of the larger square?
FAST RESPONSE PLEASE!!!
Answer:
the smaller square length is 3cm
the larger square length is 6cm
hence their ratio will be 3:6
Simplify the ratio
we have our final answer to be 1:2
The required ratio of the side length of the smaller square to the side length of the larger square is 1 : 2.
The ratio can be defined as the comparison of the fraction of one quantity towards others. e.g.- water in milk.
Here,
Side of smaller square, a = 3
Side of the larger square, b = 6
According to the question,
The ratio of the side length of the smaller square to the side length of the larger square,
= a / b = 3 / 6
= 1 / 2
Thus, the required ratio of the side length of the smaller square to the side length of the larger square is 1 : 2.
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Is Joon lee soo a girl or boy name???
Answer:
Girl
Step-by-step explanation:
For me... it sound more like a girl but it could also be a boy's name
An angle that measures 100° is an angle
a. acute
b. plain
c. straight
d. obtuse
Answer:
obtuse
Step-by-step explanation:
The perimeter of an equilateral triangle is 15 m. What is the length of each side of
the triangle?
Answer:
Correct Answer is (5 meters) for each side
Step-by-step explanation:
A=[tex]\ \frac{\sqrt{3}}{4} a^{2}[/tex] (area)
Perimeter = 15/3 = 5 meters each side
1) A Jet travels 520 miles in 2 hours. At this rate, how far could the jet fly in 13 hours? What is the rate of speed of the jet?
Answer:
[tex]Speed = \frac{distance}{time} = \frac{520}{2} =260miles \ per \ hour \\\\Distance = Speed * time = 260 * 13 = 3380miles[/tex]
A circle has a radius of 1.5 meters.
Find its circumference and area.
help bestiess :)
Answer:
C=9.42
Step-by-step explanation:
Formulas: C=2πr or C=πd
Were gonna use C=2πr
"r"stands for radius from the problem we know that the radius is 1.5 .
Now we substitute the "r" for 1.5, it looks like this C=2π1.5 .
Now we multiply 2x1.5=3 . Now you are left with C=3π
Now you need to multiply 3xπ (Instead of π use 3.14) it would look like this 3x3.14= 9.42
I need help with this, please
Answer:141.3
Step-by-step explanation:
The volume would be the Cone + Cylinder. So, use 1/3 x pi x r^2 x h and since the height is 6-3=3, you get 9 x 3.14 x 6 x 1/3 which is 56.52. The volume of the cylinder is pi x r^2 x h, which is 9 x 3.14 x 3, is 84.78. Now, add 56.52+84.78 = 141.3. Hope this helps
please help me ill give you the crown thing if its right
Answer:
C 22cm I really hope this helps and is right! Sorry if its wrong
Step-by-step explanation:
:)
heyy! i’ll give brainliest please help
Answer:
Step-by-step explanation:
Always capitalize the names of the seasons
Answer:
Pretty sure you don't capitalize seasons. I guess you can capitalize it when it's the first word of a sentence or part of a proper noun.
Jason bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 41 cards left. How many cards did Jason start with ?
Answer:
66 cards
Step-by-step explanation:
41 - 8 = 33
33 times 2 = 66
PLEASE HELP WILL GIVE BRAINLY!!
Which object has a taller height based on the given information?
Object A: a parallelogram with an area of 60m2 and a base of 10m
Object B: a parallelogram with an area of 40m2 and a base of 4m
Answer:
Which object has a taller height based on the given information?
Object A: a parallelogram with an area of 60m2 and a base of 10m
Object B: a parallelogram with an area of 40m2 and a base of 4m
Object A
OR
Object B: (Correct)
Step-by-step explanation:
Because the base of B is 4m but the hight is 10m2 because 10x4=40
help plz
what's [tex]\sqrt{8*8}[/tex]
Thx!!
Answer:
8
Step-by-step explanation:
[tex]\sqrt{8*8}[/tex] = [tex]\sqrt{64}[/tex]
[tex]\sqrt{64}[/tex] = 8
Hope this helps!
Answer:
Solution given:
[tex]\sqrt{8*8}[/tex]
[tex]\sqrt{8²}[/tex]
[tex]\large \bold{8}[/tex]
What is the area of the
triangle?
6 mm
8 mm
square millimeters
Answer:
24 square millimeters
Step-by-step explanation:
Area of a triangle is half of the base times the height.
[tex]\frac{1}{2} bh[/tex]
Here, that means
[tex]\frac{1}{2}[/tex](8)(6) = 24 square millimeters
Which is the length of HJ expressed in terms of π?
PLZ help
Answer:
B. 9π/20
Step-by-step explanation:
Which is the length of HJ expressed in terms of π?
PLZ help
The formula to calculate arc length when central angle is in degrees =
Arc length = θ/360 × 2πr
r = radius = 1
θ = 81°
Hence:
Arc length in π =
= 81/360 × 2 × π × 1
= 162π/360
= 9π/20
Therefore, the arc length = 9π/20
Option B is the correct option
The menu at the 51's baseball game has 8 flavors of drinks, 4 types of french fries, and 3 types of hamburgers. How many different ways could you purchase a drink, fries, and hamburger? (Combination)
Answer:96
Step-by-step explanation:
It's super easy you just multiply 8x4x3=96
and that gives you the answer
A recipe for peanut butter cookies uses only peanut butter ,sugar ,syrup and egg in the ratio 5:4:2:1
A) wants to makes 2.4kg of cookies
How much of each ingredient should he use.
B) using this recipe 10ph of syrup is needed to make 15 of these cookies
A)butter= 12
sugar = 9.6
syrup= 4.8
eggs= 2.4
What is ratio?A ratio indicates how many times one number contains another.
Given:
5:4:2:1
Let the common ratio be x
So, butter= 5x
sugar= 4x
syrup = 2x
egg= x
As, eggs= 2.4 kg
So, x= 2.4
Now,
butter= 5x = 5* 2.4 = 12
sugar= 4x = 4* 2.4 = 9.6
syrup = 2x = 2* 2.4 = 4.8
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Hello, I am Nazanin. Tomorrow I have to answer a series of math questions. Is there anyone who can help me?
What is the value of en7x?
1
O 1
o 7e
O 7x
07
Answer:
im not sire u tell me like i think its 07
The value of the given expression is 7x.
What is an expression?A mathematical statement containing variables and numbers connected by at least one arithmetic operation is called an expression.
Given is an expression, [tex]e^{ln7x[/tex]
Let
[tex]y = e^{ln7x[/tex]
Taking ln both the sides,
[tex]ln(y) = ln(e^{ln7x})[/tex]
㏑ y = ㏑ 7x ㏑ e
㏑ y = ㏑ 7x
y = 7x
Hence, the value of the given expression is 7x.
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Help, I dont get it, Like how do I do the division?
Answer:
Step-by-step explanation:
you actually dont have to do any division in this problem. since you know the area of the square and its depth, you simply multiply to two fractions, so [tex]\frac{25}{4} *\frac{8}{5}[/tex] when you multiply fractions all you do is multiply the tops and and bottoms, so 25 * 8=200 and 5 * 4=20, so the fraction is now 200/20, so when divide both sides by 20, the answer is 10. another way to demonstrate this in case you didnt understand is that you can rewrite your equation as [tex]\frac{25 * 8}{4 * 5}[/tex] then all you have to do is perform the opperation.
if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give brainliest
Solve x 2 - 4x - 7 = 0 by completing the square. What are the solutions?
A){2 +√11 , 2 - √11}
B){-2 +√11 , -2 - √11}
C){2 + √11, 2 +√11 }
Answer:
A) {2 +√11 , 2 - √11}Step-by-step explanation:
[tex]x^2 - 4x-7=0\\\\\underline{x^2 - 2\cdot x\cdot2+2^2}-2^2-7 =0\\\\\big(x-2\big)^2-4-7=0\\\\ \big(x-2\big)^2=11\\\\ x-2=\pm\sqrt{11}\\\\ x=2\pm\sqrt{11}[/tex]
A coffee shop sold small coffees for $2 and large coffees for $2.50. At the end of a day the shop sold 450 cups of coffee for a total revenue of $950. How many large coffees were sold?
Write two equations for this problem and solve using substitution
Step-by-step explanation450 x 2.50 = 1125.
1125 - 950 = 175163 * 80 − 153 * 47 − 153 * 33 compute in the most rational way BRAINLIEST IF CORRECT
Answer:
820
Step-by-step explanation:
Some people may get confused and just calculate this question from left to right, but I was taught to use this formula:
Brackets
Exponents
Division
Multiplication
Addition
Subtraction
--------
So lets multiply first,
163 × 80 = 13,040
153 × 47 = 7,191
153 × 33 = 5,049
-------
Next, we subtract:
13,040 - 7,191 - 5,049 = 820
------
Have a good day :)
You are designing a rectangular skateboard park on a lot that is on the corner of a city block. The park will have a walkway along two sides. The dimensions of the lot and the walkway are shown in the diagram.
Answer:
The dimensions of the lot and the walkway are shown in the diagram.
Step-by-step explanation:
Can someone please help me with math.
Answer:
The answer would be plot D.
Step-by-step explanation:
Can someone please help me with this algebra
Answer:
bounce 1
Step-by-step explanation:
1. How can you find answers to the statistical questions?
2. How about answers to non-statistical questions?
1 The solution involves four steps.
Make sure the sample size is big enough to model differences with a normal population. ...
Find the mean of the difference in sample proportions: E(p1 - p2) = P1 - P2 = 0.52 - 0.47 = 0.05.
Find the standard deviation of the difference. ...
Find the probability.
Solve for X
x = ___ (Round to the nearest hundredth)
Answer:
12.62
Step-by-step explanation:
imagine a circle with the center at the corner (let's call it A) with the 31 degree angle. the radius is AB.
so,
x = sin(31)×AB
and
21 = cos(31)×AB
therefore,
AB = 21/cos(31) = 24.4993...
=> x = sin(31)×24.4993... = 12.62 (12.61807...)
Plsss help me !!!!
the public school enrollment of a city is 13,500. Enrollment is declining at a rate of 4.5% per year. predict the enrollment in 5 years.
Answer:
The enrollment after 5 years is 10,724
Step-by-step explanation:
Generally, we can have the depreciation formula written as follows;
A = P(1 - r)^t
A is the number of enrollment in after a certain number of years t
P is the initial population which is 13,500
r is the rate of depreciation which is 4.5% = 4.5/100 = 0.045
t = 5 years
Substituting these values, we have it that;
A = 13,500(1-0.045)^5
A = 10,723.84