Answer:
Salma can run 1 to 8 more miles to run less than 28 miles in total
Step-by-step explanation:
28-19= 9 but she is running LESS than 28 miles so subtract 1 from that 9
if
[tex]a = \frac{2x + \sqrt{x} }{x} [/tex]
and
[tex]b = \frac{1 - 2 \sqrt{x} }{ \sqrt{x} } [/tex]
without sing a calculator, show that
[tex](a + b) {}^{2} = \frac{4}{x} [/tex]
Answer:
Step-by-step explanation:
Rationalize the denominator of b. So, multiply the numerator and denominator by [tex]\sqrt{x}[/tex]
[tex]b = \frac{(1-2\sqrt{x}) *\sqrt{x}}{\sqrt{x}*\sqrt{x} }=\frac{1*\sqrt{x} -2\sqrt{x} *\sqrt{x} }{\sqrt{x} *\sqrt{x} }\\\\=\frac{\sqrt{x} -2x}{x}\\[/tex]
Now, find a +b
[tex]a +b = \frac{2x+\sqrt{x} }{x}+\frac{\sqrt{x} -2x}{x}\\\\=\frac{2x+\sqrt{x} +\sqrt{x} -2x}{x}[/tex]
Combine like terms
[tex]= \frac{2x-2x+\sqrt{x} +\sqrt{x} }{x}\\\\=\frac{2\sqrt{x} }{x}[/tex]
Now find (a + b)²
(a +b)² = [tex](\frac{2\sqrt{x} }{x})^{2}[/tex]
[tex]= \frac{2^{2}*(\sqrt{x} )^{2}}{x^{2}}\\\\= \frac{4* x}{x^{2}}\\\\= \frac{4}{x}[/tex]
Hint: [tex]\sqrt{x} *\sqrt{x} =\sqrt{x*x}=x[/tex]
For your birthday you get a big cake and cut it into several pieces. At the end of the party you have 12 pieces of the cake left which is 3/8 of the total cake. How many pieces was the cake originally cut into? Write and solve an equation.
Answer:
32 pieces
Step-by-step explanation:
1 - 3/8 = (8 - 3) / 8 = 5/8
3/8 = 12 pieces
5/8 = x
Cross multiply
3/8 x = 12 * 5/ 8
3/8 x = 7.5
x = 20
Hence, total piece cake was cut into originally :
20 + 12 = 32 pieces
243.6 divided by 8
Explanation( process)
Answer:
30.45
Step-by-step explanation:
Answer:
30.45
Step-by-step explanation:
The figure shows a rectangle ABCD where the diagonals AC and BD intersect E. Given that BEC=52.
i)ADB,
ii)ACD
pls help me with this question
Answer:
b
Step-by-step explanation:
besase of i don't nown but answer is d no
Answer:
C
Step-by-step explanation:
If you know what the distributive property is that will help a lot, if not I'll show you how to solve this.
6(x + 13)
Then you do 6 times x which would be 6x. Next you multiply 6 by 13 which is 78. So, your answer would be 6x + 78. Which is answer choice C.
help me plzzzzzzzzzz
Answer:
x = 3
Step-by-step explanation:
From the table of values
f(x) = g(x) = - 2 when x = 3 in both cases
A car wash detailed 175 cars in 5 hours. At what rate did the car wash detail cars in cars per hour?
Answer:
35 cars per hour
Answer:
35 cars per hour
Step-by-step explanation:
175 cars in 5 hours.
175 cars ÷ 5 hours = 35 cars
Our final answer is 35 cars per hour
Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3
-Bee~
Please help meeeee! Which interval would 10 be included in?
O 0-10
O 10-20
Answer:
the answer is 10 and another one is 30
Please help
A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the first eight people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) It is a valid sample because the first eight people were selected to participate. It is not a valid sample because it is not a random sample of the population. It is a valid sample because money was offered to participants. It is not a valid sample because it is only a short study.
Answer:
the answer is b
Step-by-step explanation:
Byron needs at least 20 m rutes between
the end of his soccer practice and the start
of his dentist appointment His practice cuds
at 4 30 and his appointment is at 5:00?
Answer:
yes
Step-by-step explanation:
if it ends at 430 he will have 30 min before his appoionment
The volume of a box is 400 in.^3in. 3 . The height is 5 in. What is the area of the base of the box?
Answer:
The area of the base is 80 in². 80 square inches.
Step-by-step explanation: V = b×h
Divide the volume by the height to find the area of the base.
400 ÷ 5 = 80
what is a 90° plus 180° plus 15°
Answer:
285°
Step-by-step explanation:
90 + 180 = 270
270 + 15 = 285
Answer:
285°
Step-by-step explanation:
Lets solve your problem :)
90° + 180° = 270°
270° + 15° = 285°
Mark my answer brainliest to tell you the 4 algebra calulators :)
Please help me on this, I need to find X!
Answer:
x would most likely be 55.
Explanation:
because it is a right angle which is = to 90.
90-35=55
Answer:
55°
Step-by-step explanation:
Right angles are 90°
90 - 35 = 55° (x°)
The angles are adjacent, if it was vertical both angles would have the same degree. Adjacent angles are angles which have a common vertex and occur in right angled triangles.
Question 6
1
Solve for n-
. (an + 2) = 19
ОА
10
=
B
-
8
-10
Answer
Answer:
n=17/a
Step-by-step explanation:
isolate the variable by dividing each side by factors that don't contain the variable
Simplify. Express your answer as a single fraction in simplest form.
2 46
+
3bc 5
DO
Answer:
Step-by-step explanation:
The fractions need a common denominator before you can add them together.
The least common denominator is 15bc.
Mariyam wants to cut her chocolate brownie into two rectangles. What kind of angles will Mariyam form?
Answer:
90°
Step-by-step explanation:
Given - Mariyam wants to cut her chocolate brownie into two rectangles.
To find - What kind of angles will Mariyam form?
Proof -
If she cut the brownie in the rectangular shape, then the angle formed is 90°.
can y’all please help. I will send points if you want me to.
Answer:
the third one has a 2 acute angles 2 abuse angles and the x value is 110
Step-by-step explanation
the x value has to be bigger then 90 degree angles because it is a abuts angle and the 57 angle is a acute angle
70 is what percent of 56
Answer:
70 is 125% of 50
Step-by-step explanation:
I hope this helped :)
The percentage value of 70 to 56 is 125% by taking the ratio of 70 to 56 and then converting it to a percentage.
Given that, to find what percent of 70 in 56.
To find out if the percentage of 70 is 56, follow the steps:
Step 1:Find the ratio of the two numbers that is the ratio of 70 and 56 gives:
[tex]70:56 = 70/56[/tex]
Divide both numerator and denominator by 14 yields in:
[tex]= 5/4[/tex]
Step 2: Convert the result of step 1 into decimals by a long division of 5 by 4.
[tex]5/4 = 1.25[/tex]
Step 3: Find the percentage value of the decimal by multiplying the decimal by 100.
[tex]1.25 \times100 = 125[/tex]%
Therefore, the percentage value of 70 to 56 is 125% by taking the ratio of 70 to 56 and then converting it to a percentage.
Learn more about percentage ad ratio here:
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PLEAZE HELP WILL MARK BRAINLIEST Derek started a blog about all the fun moments during his first year of college. Which purpose is the most likely reason for writing the blog? to inform to persuade to entertain to instruct
Answer: To Imform
Step-by-step explanation:
Answer:
The answer is to entertain
Step-by-step explanation:
i know because i am in the future
All of the edges of a regular triangular pyramid have length 12. A frustum of the pyramid has height half of that of the pyramid. What is the:
1) Volume of the frustum?
2) Surface area of the frustum?
Answer:
1) The volume of the frustum is 27·(√3)·h
2) The surface area the frustum is 24·h + 54·√3
Step-by-step explanation:
1) A frustum of the regular triangular prism is a portion of the triangular prism
The length of the edge of the triangle prism = 12
The area of the triangular face, A = (√3/4)·a²
∴ A = (√3/4)·12² = 36·√3
When
The volume of the triangular prism, V = A·h = (36·√3)·h
By triangle proportionality theorem, the cross sectional area of the top half of the triangular prism = (√3/4)·6² = 9·(√3)
The volume of the top half, V₂ = 9·(√3)·h
The volume of the frustum = V - V₂ = (36·√3)·h - 9·(√3)·h = 27·(√3)·h
The volume of the frustum = 27·(√3)·h
2) The surface area of the triangular side of the frustum is given as follows;
A = 36·√3- 9·(√3) = 27·(√3)
The surface area the frustum, [tex]F_A[/tex] = 2×27·(√3) + 2 ×6 ×h + 12×h = 24·h + 54·√3
The surface area the frustum = 24·h + 54·√3
The first month a company was open, it had 2 employees. At the end of 6 months, the company had 10 employees. If the number of employees increases at a steady rate, write an equation that illustrates this situation.
the equation would be 2[6]+10 however if we were to solve it would have been 2(6)+10 = 22 employees
The equation y = 4/3 x + 2 represents the number of employees, increases at a steady rate.
Where x shows the number of months
What is an equation ?An equation is a combination of different variables, in which two mathematical expressions are equal to each other.
Given that,
At staring, when the company was opened,
The number of employees = 2.
After 6 months the number of employees in company = 10.
The increased number of employees = 10 - 2 = 8
In 6 months 8 employees are increases.
In 12 months number of employees = 10 + 8 = 18
Let y represents the number of employees
And x represents the number of months
So the equation can be written as,
y = 4/3 x + 2
The required equation is y = 4/3 x + 2.
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I need help on this pls
Answer:
Area= 56 cm²
Step-by-step explanation:
Figure given is a rhombus
Area= 1/2*d1*d2
Please help me with this question!
Answer:
Your Answer Is 10
Step-by-step explanation:
1st Factor the Numerator and Denominator then cancel the common factor.
Hope It Help You If Yes then Please make me the Brainiest.
Thank You
Parshv
C = 10
C = v52
C = 8
C = 120
Answer:
[tex]c = \sqrt{52}[/tex]
Step-by-step explanation:
[tex]c^{2} = a^{2} + b^{2}[/tex]
[tex]c^{2} = 4^{2} + 6^{2}[/tex]
[tex]c^{2} = 16 + 36\\[/tex]
[tex]c^{2} = 52[/tex]
[tex]\sqrt{c^{2} } = \sqrt{52}[/tex]
[tex]c = \sqrt{52}[/tex]
PLEASE SOMEONE HELP ME! I NEED THE ANSWER ASP
The water spray from a spinning lawn sprinkler covers a circular area of 196π square feet. If Ray is standing 30 feet away from the sprinkler as it is spraying water, which of the following statements is true?
A. Ray will get wet because the sprinkler sprays an area with a radius of 196 feet and 30<196.
B Ray will stay dry because the sprinkler sprays an area with a radius of 14 feet and 14<30.
C. Ray will stay dry because the sprinkler sprays an area with a radius of 28 feet and 28<30.
D. Ray will get wet because the sprinkler sprays an area with a radius of 98 feet and 30<98.
Answer: B
Step-by-step explanation:
196π=πr^2
196=r^2
14=r
14<30
algebra question
3-x=5-3x
Answer:
x=1. Hope this helps!!!
Which expressions are equivalent to 2(4x+2y)
A: 4(2x+y)
B: 8x+4y
C: 2x(4+2y)
D: 8x+2y
Answer:
A,B
Step-by-step explanation:
4(2x+y)
4•2x + 4•y
8x+4y
2(4x+2y)
2•4x + 2•2y
8x+4y
$2,000 at 4% for 24 months. Find the interest earned
Can someone plz help me with this one problem plz!!!
Answer:
i guess you just subtract by three
3- 3 = 0
4 - 3 = 1
5- 3 = 2
6- 3 = 3
find the missing angle. PLEASE HELP!! I WILL GIVE 100 POINTS!!
OPTIONS:
50
60
140
70
Answer:
50°
Step-by-step explanation:
90°-40°=50°
The square on the angle means 90°.
Hope this helps! :D