Answer:
D
Step-by-step explanation:
i added it
Several people are trapped in a hollow. 10 of them are named Chris, 23 are named
Ali, and 57 are named Tejas. Approximately, what percent of the people in the hollow are named Chris?
Answer:
lets figure out how many in total
10 + 23 + 57 = 90
10/90
11%
Step-by-step explanation:
Question 8
Find the surface area of a cuboid with lengths 28 cm,
4 cm and 5 cm. If the answer is A cm2 then
write the value of A.
PLEASE HELP ME OMG X
Answer:
Answer: 544
Step-by-step explanation:
The Surface Area of a Cuboid
Given a cuboid (rectangular prism) of dimensions x,y, and z, the surface area is calculated as follows:
[tex]S=2(xy+yz+xz)[/tex]
The dimensions of a given cuboid are x=28 cm, y=4 cm, z=5 cm, thus:
[tex]S=2(28*4 + 4*5+ 28*5)[/tex]
[tex]S= 2*272 = 544[/tex]
The surface area is [tex]544 cm^2[/tex]
Answer: 544
What single percentage change is equivalent to a 18% increase followed by a 13% decrease?
Given:
18% increase followed by a 13% decrease.
To find:
The single percentage equivalent to a 18% increase followed by a 13% decrease.
Solution:
Let a number be 100.
If it is increased by 18% then the number becomes
[tex]Number=100+\dfrac{18}{100}\times 100[/tex]
[tex]=100+18[/tex]
[tex]=118[/tex]
Then, it is decreased by 13%.
[tex]Number=118-\dfrac{13}{100}\times 118[/tex]
[tex]=118-15.34[/tex]
[tex]=102.66[/tex]
New number is 102.66.
Now, the percentage change is
[tex]\%\text{ Change}=\dfrac{\text{New number - Initial number}}{\text{Initial number}}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{102.66-100}{100}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{2.66}{100}\times 100[/tex]
[tex]\%\text{ Change}=2.66\%[/tex]
Therefore, the Single percentage change is 2.66%.
Does anyone know how he got from step 1 to step 2??????????
9514 1404 393
Explanation:
Both sides of the equation are squared.
[tex]\dfrac{x-12}{4}=\sqrt{x} \qquad\text{given}\\\\ \left(\dfrac{x-12}{4}\right)^2=x \qquad\text{square both sides}\\\\ \left(\dfrac{x}{4}-3\right)^2=x \qquad\text{divide out the fraction}\\\\ \dfrac{x^2}{4^2}-\dfrac{6}{4}x+9=x \qquad\text{$(a-b)^2=a^2-2ab+b^2$}\\\\\dfrac{x^2}{16}-\dfrac{5x}{2}+9=0 \qquad\text{subtract $x$}[/tex]
I like this better without fractions, so would multiply by 16 at this point (or earlier).
x^2 -40x +144 = 0
(x -36)(x -4) = 0
x = 4 or 36 . . . . . . x = 4 is extraneous
The solution is x = 36.
Please help! Will give brainliest. What two numbers are being multiplied above and what is their product?
40
800
500 30
(there is a picture.) Please help!!!
1st one on top is 100 and 3rd one on top is 6.
help me I'm stuck on this assignment problem
Answer:
pi^4
Step-by-step explanation:
In a problem like this you subtract exponents
11 - 7 = 4
pi^4
what's 10/75 simplified?
Answer:
The answer to your question is 2/15.
Step-by-step explanation:
Just divide it by 5
Find a cubic function with the given zeros.
3, -4, 7 (5 points)
f(x) = x3 - 6x2 - 19x + 84
f(x) = x3 - 6x2 - 19x - 84
f(x) = x3 + 6x2 - 19x + 84
f(x) = x3 - 6x2 + 19x + 84
Step-by-step explanation: its a+b which equals 182
Just need help with number 2 I will GUVE brainliest
I really do not get this at all and need help please
Tell whether each function is linear or non-linear. Function A Function B x 0 1 2 3 y 0 1 8 27 y = –x + 5
Answer:
Please check the explanation.
Step-by-step explanation:
The slope-intercept form of the linear function
[tex]y = mx+b[/tex]
where
m is the slopeb is the y-interceptThe graph of y = mx + b is a straight line. Thus, y = mx + b represents a linear function.
Analzing the function y = –x + 5
Given the linear function
y = –x + 5
comparing with the slope-intercept form of linear equation
The slope m = -1
The y-intercept b = 5
Also, the graph of a linear function is a straight line.
Thus,
The function y = –x + 5 represents a linear function.
Analzing the Table Function
x 0 1 2 3
y 0 1 8 27
In order to identify whether the given table represents the linear function or not, we need to make sure the given function has a constant change x and y.
If there is a constant change in x and y, then it would be a linear Function otherwise it would not represent a linear function.
There is a constant change in x values.
i.e.
1 - 0 = 1
2 - 1 = 1
3 - 2 = 1
But, there is NOT a constant change in y.
i.e.
1 - 0 = 0
8 - 1 = 7
27 - 8 = 19
It is clear that the table does not have a constant change in y-values.
Therefore, the table function does not represent the linear function
In a bag of skittles, there are 124 pieces. 25% are red. How many skittles are NOT red? Put the numeric answer only.
Answer:
496
Step-by-step explanation:
Answer:
93
Step-by-step explanation:
124 * 25%
31
124-31
93
7x + 3y = -9
Slope intercept form
Evaluate the expression when m is 5 and n is 22 10+(9m)+4-n
PLZ HELP HURRY PLZZZ
Answer:37
Step-by-step explanation:
10+(9*5)+4-22
escribe el número que corresponda a la escritura polinomica 8x10³+4x10²+0x10¹+9x10⁰
Answer:
8409 es 8×10³ es 8 4×10² es 4 0×10¹ es 4 9×10⁰ es 9
Complete the table below to find solutions to the linear equation y=5x−5.
Use parentheses when entering ordered pairs and do not enter spaces between numbers
The solution to the equation y = 5x - 5 is given by the ordered pairs
( 0 , -5 ) , ( 1 , 0 ) , ( 2 , 5 ) , ( 3 , 10 ) , ( 4 , 15 )
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
y = 5x - 5 be equation (1)
On simplifying the equation , we get
Substitute the value of x = 0 in the equation , we get
y = 5 ( 0 ) - 5
y = 0 - 5
y = -5
So , the ordered pair is ( 0 , -5 )
Substitute the value of x = 1 in the equation , we get
y = 5 ( 1 ) - 5
y = 5 - 5
y = 0
So , the ordered pair is ( 1 , 0 )
Substitute the value of x = 2 in the equation , we get
y = 5 ( 2) - 5
y = 10 - 5
y = 5
So , the ordered pair is ( 2 , 5 )
Substitute the value of x = 3 in the equation , we get
y = 5 ( 3 ) - 5
y = 15 - 5
y = 10
So , the ordered pair is ( 3 , 10 )
Substitute the value of x = 4 in the equation , we get
y = 5 ( 4 ) - 5
y = 20 - 5
y = 15
So , the ordered pair is ( 4 , 15 )
Hence , the equations are solved
To learn more about equations click :
https://brainly.com/question/19297665
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Find m
measure of angle YQR=? Degrees
Answer:
21°
Step-by-step explanation:
Since these are both equivalent right triangles, ∡RQY and ∡PQY are the same. So set them equal to each other.
16x-27=5x+6
x=3
Next plug x into ∡RQY
16(3)-27=21°
Answer:
Step-by-step explanation:
3
Javier is buying fencing to surround his garden. If his garden has a perimeter of 30 yards, and fencing costs $6.00 a yard, how much money will he need for the fencing?
$180
Step-by-step explanation:
30 x 6 = 180
Answer:
180 it is basic multiplication
Step-by-step explanation:
Can someone please help me understand how to expand 8(3y-4). Please give a detailed explanation.
Answer:
24y - 32
Step-by-step explanation:
You take the 8 and multiply each term by in the parentheses by 8, so
8(3y - 4) becomes 8 * 3y - 8 * 4 = 24y - 32
Answer:
well, you can multiply them, to simplify the equation, but to expand, try adding or multiplying 2 multiples of 8, in the middle the 4 can change by adding 2+2 or 3+1. For 3y, you can do 3*y.
Step-by-step explanation:
how to prove triangles are congruent
Answer:
Step-by-step explanation:
If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
Answer:
by four method
Step-by-step explanation:
1st by AAA
2nd by AA
3rd by SSS
4th by SAS
PLEASE HELP! I NEED A WRITTEN RESPONSE. WILL GIVE BRAINLIEST
Answer:
The more they seem to change the more they stay the same.
Which of the following points could be tied to the coordinate graphiasathind point to
create an isoscelestrande Choose all that apply
5
-5
(2 points)
(1,3)
(-2,5
0 (4,-2)
I need help
Only Answer
Answer:
40%
Step-by-step explanation:
Each box is worth 20%
You know this because the entierty of the box is 100% and it is divided into 5 groups 100 divided by 5 is 20, thus each box is worth 20%.
5x+8=2x -13 ?
i need help please
Answer:
x=-7
Step-by-step explanation:
Alrighty. 5x+8=2x-13. Lets do -2x on both sides. We'll get 3x+8=-13. Then lets subtract 8 from both sides. We'll get 3x=-21. Divide by 3 and we'll get x=-7. Hope that makes sense.
Answer:
i think the answer is 7
Step-by-step explanation:
X=y
x+2y=3
Substitution
Answer:
X=y
x/y+2=3 because
Y+Y+Y=3 so
X=Y+Y+Y=3
Answer:
No se
Step-by-step explanation:
pero okueuekdnfjdbebf
Please help me out fast. And make sure to Write and solve an inequality. Or it isn't right.
Answer:75x+160
8 is the answer exactly 8
Step-by-step explanation:
Answer:
Set variable d for number of days: 75d + 160 < 760; 75d < 600; d < 8. The van has to be rented for less than 8 days for the family to spend less than $760.
A fisherman weighs an ahi tuna (a very large fish) on a scale and gets a reading of 135
pounds. The reading on the scale may have an error of up to 5%. What are two possible
values for the actual weight of the fish?
Answer:
Either 128.25-reduced by 5 percent or
141.75 increased by 5 percent
Step-by-step explanation:
Expand to write an equivalent expression
-1/4 (-8x +12y)
Arrange the expressions in increasing order of their estimated
Jenna lives 8 2/5 miles from work. Colby lives 3/4 of this distance from work. How far does Colby live from work?
Answer:
around 45 minutes
Step-by-step explanation:
it takes about 15 minutes to do 1 mile, do the correct math, it'll take about 45 minutes to do 3 miles