Answer:
2gramm/millimeters
Step-by-step explanation:
From the question we were given 5
gram ball with a volume of 2.5 milliliters.
Then What is the density of the ball?
Density of a substance is the mass of the substance per it's unit volume
It can be expressed below as
Density= mass/ volume
Mass= 5gram
Volume= 2.5millimetre
Then substitute we have
Density=5/2.5
=2g/mm
Therefore, density of the ball is 2gramm/millimeters
Q1) If Q is directly proportional to P and Q = 28 when P = 4, (i) express Q in terms of P, (ii) find the value of Q when P = 5, (iii) calculate the value of P when Q = 42.
Answer: i) Q=7*P ii) if P=5 => Q=35 iii) if Q=42 => P=6
Step-by-step explanation:
Q is directly prportional to P that means that
Q/P=k=const ( where k is the prportionality coefficient)
So k= 28/4=7
So i) Q= 7*P
ii) Q=5*7=35 if P=5 =>Q=35
iii) P=42/7=6 if Q=42 => P=6
Please help! ASAP!!! C:
Answer:
Equation: 5.88/3=p-0.75
The original price for apples was $1.21
Step-by-step explanation:
Equation explanation:
$5.88 divided by 3 pounds of apples = the original price per pound - the $0.75 increase in price
$5.88 for 3 pounds of apples
we divide 5.88 by 3 to see how much money it was per pound
5.88/3=1.96
subtract 1.96 from the price increase of .75
1.96-.75=1.21
you will use 2 operations when doing algebra. true or false
Answer:true
You will be using 2 operations
Solve |2x - 5| = 4 I dont know what you solve for
Hello!
Answer:
[tex]\huge\boxed{x = 1/2, 9/2}[/tex]
|2x - 5| = 4
Solve for the negative and positive expressions:
2x - 5 = 4
2x = 9
x = 9/2
------------
-(2x - 5) = 4
-2x + 5 = 4
-2x = -1
x = 1/2.
Therefore, the solutions are x = 1/2 and 9/2.
what is mid point theorem
Answer:
In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints.
Step-by-step explanation:
i don't have an explanation though
Answer:
The theory of midpoint theorem is used in coordinate geometry stating that the midpoint of the line segment is an average of the endpoints. Both the ‘x’ and the ‘y’ coordinates must be known for solving an equation using this theorem. The Mid- Point Theorem is also useful in the fields of calculus and algebra.
Step-by-step explanation:
can someone help me please
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ {12.56 \: {mm}^{2} }}}}}}[/tex]Step-by-step explanation:
Given,
Radius ( r ) = 2 mm
pi ( π ) = 3.14
Finding the area of circle having radius of 2 mm
Area of circle [tex] \sf{ = \pi \: {r}^{2} }[/tex]
plug the values
⇒[tex] \sf{3.14 \times {2}^{2} }[/tex]
Evaluate the power
⇒[tex] \sf{3.14 \times 4}[/tex]
Multiply the numbers
⇒[tex] \sf{12.56 \: {mm}^{2} }[/tex]
Hope I helped!
Best regards!!
what is the smallest length that can be divided exactly into equal sections of length 5m, 8m and 12m
Answer:
1m
Step-by-step explanation:
That would be 1 m.
1 is the only whole number which divides exactly into 5, 8 and 12.
please help on 19 and 20
Answer:
c and d
Step-by-step explanation:
Answer:
C AND D
Step-by-step explanation:
HOPE I HELPED
PLS MARK BRAINLIEST
DESPERATELY TRYING TO LEVEL UP
✌ -ZYLYNN JADE ARDENNE
JUST A RANDOM GIRL WANTING TO HELP PEOPLE!
PEACE!
Write the equation
y + 5 = 4(x + 2)
in slope intercept form
(y mx + b).
Answer:
y = 4x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b
Given
y + 5 = 4(x + 2) ← distribute the parenthesis
y + 5 = 4x + 8 ( subtract 5 from both sides )
y = 4x + 3 ← in slope- intercept form
what is the gcf of of -9y^2 + 6y
Answer:
3y
Step-by-step explanation:
First find the factors of the terms. You need to then figure out how many factors match.
-9y² = -1 · 3 · 3 · y · y
6y = 2 · 3 · y
3y is the greatest common factor.
Od=125
d) f = 120
11. Melissa is buying a sweater. The original cost of the sweater
is $18.00. The sweater is 15% off, and sales tax is 8%. How
much will the sweater cost?
a) $14.08
O b) $12.24
O c) $16.52
O d) $15.30
Answer:
Hey there!
The sweater is selling for 85% of the original price
0.85(18)=15.30
1.08(15.30)=16.52
Let me know if this helps :)
The solution is Option C.
The total cost of the sweater is $ 16.52
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 original cost of the sweater be = $ 18
Let the sales tax percentage be = 8 %
Let the discount of the sweater be = 15 %
So , the equation for the total cost of the sweater is
The cost of the sweater after discount of 15 % is = original cost of the sweater - discount of the sweater x original cost
The cost of the sweater after discount of 15 % is = 18 - ( 15/100 ) x 18
= 18 - 0.15 x 18
= 18 - 2.7
= $ 15.3
Now , the cost of the sweater after sales tax of 8 % is = cost of the sweater after discount + sales tax percentage x cost of the sweater after discount
So , the equation is
The cost of the sweater after sales tax of 8 % is = 15.3 + ( 8/100 ) x 15.3
= 15.3 + 0.08 x 15.3
= 15.3 + 1.224
= $ 16.524
Hence , the total cost of the sweater is $ 16.52
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Hector and Evelyn are solving the following problem. Find x,y, and z in this 45-45-90 triangle.
Answer: A. They are both incorrect
Step-by-step explanation:
x=3√2
y=6
z=3√2
-----------------------
45-45-90=1:1:√2
------------------------
solve for x
x is the side accordingly to 90 in the smaller triangle, so it should be the [45] side times √2
3×√2=3√2
-----------------------
solve for y
y is the side accordingly to 90, so it should be the [45] side times √2
3√2×√2=6
----------------------
solve for z
z is the side accordingly to 45 in the bigger triangle, x is also accordingly to 45 in the bigger triangle
z=x
z=3√2
Bottle A can hold 3L more juice than bottle B. Bottle D can hold 5L more juice than bottle A. Bottle C can hold 3L less juice than bottle A.
Answer:
This may be incomplete, i will try to answer this in a general way.
We have 4 bottles, A, B, C and D.
If A is the volume of Bottle A, B is the volume of bottle B, C is the volume of bottle C, and D is the volume of bottle D, we have that:
A = B + 3L.
D = A + 5L
C = A - 3L.
Let's solve this system the most we can (we can not fully solve the system because we have more variables than equations)
First, taking the third equation and adding 3L in both sides, we have:
C + 3L = A.
This is equivalent to the first equation, so we have that C = B.
now, we have two equations:
A = B + 3L
D = A + 5L
We can replace the first equation into the second equation and get:
D = A + 5L = (B + 3L) + 5L = B + 8L
So bottle D can hold 8L more juice than bottle B (and because bottle B and bottle C have the same volume, bottle D can hold 8L more juice than bottle C)
Now, we can order the bottles depending on the volume:
Bottle D is the one with larger volume.
Bottle A comes next.
Bottles C and B are the smaller ones, and they are together because they have the same volume.
ANSWER FAST ...............
Answer:
The answer is
Step-by-step explanation:
First term 8. I am a 100% sure.
Hope this helps....
Have a nice day!!!!
f(x) = 3•2^x
h(x) = 2x - 7
h(f(2)) =
Answer:
17
Step-by-step explanation:
f(x) = 3•2^x
h(x) = 2x-7
f(2) = 3•2^2
= 3•4
= 12
h(f(2)) = 2(12) - 7
= 24 - 7
= 17
How can I identify witch of those numbers don’t belong with the other there 50.1 -50 over two -50.1 square root of 50?
I'm assuming you were given these four values
50.1, -50/2, -50.1, sqrt(50)
where 'sqrt' stands for 'square root', and the slash symbol means divide or fraction.
If my assumption is correct, then the term that does not belong is sqrt(50). This is because the other values are all rational. We can express them as a fraction of two whole numbers
50.1 = 501/10-50/2 is already a fraction, no need to do any work for this one-50.1 = -501/10But we can't do the same with sqrt(50). It is irrational. Note how 50 is not a perfect square. Your calculator will show that sqrt(50) = 7.07106781186548 and that decimal sequence goes on forever without any pattern. If you were given sqrt(49), then it would work because sqrt(49) = 7 = 7/1.
Suppose that you could replace the ordered pair
(1.4) to make the relation R (shown left) into a
function. Which ordered pair would work?
O (1,2)
(-1,4)
O (23)
(4, 15)
DONE
Answer:
This is incomplete, but i will answer it in a general way.
A function is something like y = f(x)
You can think in a function like a "machine", that eats an input (x) and transforms it into an output (y).
The functions have a rule: For all the possible inputs, the function can transform them into only one output.
This means that if we have for an input x1.
f(x1) = y1 and f(x1) = y2
So f(x) maps x1 into two different values, y1 and y2, then this is not a function.
Now, you want to change the point (1, 4) of a relationship in order to transform it into a function (so in the relation R we have two points with x = 1, and differet values of y). Then you need to choose the option that in the x-component does not have the same value that one of the other data points of the relation.
Write the equation of the line perpendicular to x+2y=6 that passes through (5, 8).
Answer:
y = 2x-2
Step-by-step explanation:
First find the slope of the line
x+2y=6
2y = -x+6
y = -1/2x +3
This is in slope intercept form ( y = mx+b) so -1/2 is the slope
We want a line that is perpendicular so take the negative reciprocal of the slope
- ( 1/ (-1/2)) = 2
The slope of the perpendicular line is 2
y = 2x+b
Substitute the point into the equation
8 = 2(5) +b
8 = 10+b
-2 =b
The equation of the line perpendicular is
y = 2x-2
Answer:
y = 2x - 2
Step-by-step explanation:
x + 2y = 6 can be solved for y (and thus for slope m) as follows:
2y = -x + 6, or y = (-1/2)x + 3.
Any new line perpendicular to this one has a slope that is the negative reciprocal of (-1/2); that would be +2.
Starting from y = mx + b,
Replace x with the given 5, y with the given 8 and m with the calculated +2:
8 = 2(5) + b, or
b = -2
and then the desired equation is
y = 2x - 2
2+2=????????????????????????????????????
Answer:
The answer is 4
Step-by-step explanation:
1+1+1+1=4
Which of the following variables
is most likely to be used as categorical?
A) Length of a garden hose
B) Recorded rainfall for a day
C) Flower color
D) Weight of books on a shelf
Answer:
C) Flower color.
Step-by-step explanation:
Quantitative variables are things that can be measured. A garden hose's length is measured in meters or feet. You measure the rainfall for a day in millilitres or liters. The weight of books on a shelf is measured in pounds or grams.
Categorical variables are often descriptions, such as C) Flower color.
Hope this helps!
Flower colors, generated from anthocyanins, flavonoids, or carotene which draw bone, trichromats, photoreceptor cells, tri- or tetrachromats butterflies & birds, that are supersensitive, blues, as well as green.
Quantity variables are measurable items.In meters or feet is measured the time of garden plants.The precipitation is calculated in milliliters or liters for one day.Books are assessed in pounds or grams in mass in a rack.That is why categorical variables, such as Flowers color, frequently are descriptions.Therefore, the "Option C" is the only correct answer.
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Compare and contrast a line and a line segment I mean how are they different, how are they alike?
Line segment is limited by two endpoints which also define one.
A Line is not limited to but only exists because of those two endpoints.
Hope this helps.
If y=3/5x+26 find the value of y when x=12
Answer:
46
Explanationy = 3 /5x +26
y =?
X= 12
y=3 /5x + 26
y= 3 / 5 × 12 + 26
y = 3 / 60 + 26
y = 20 + 26
y = 46 ans
John has a box of nails. The box contains 65 small nails, 40 medium nails, and 45 large nails. Susan has a box of nails that has the same proportion of small, medium, and large nails as John's box. There are 176 medium nails in Susan's box. What is the total number of nails in Susan's box?
Answer:
The total number of nails in Susan's box is 660 nails
Step-by-step explanation:
The given parameters are;
The number of small nails in John's box = 65
The number of medium nails in John's box = 40
The number of large nails in John's box = 45
The number of medium nails in Susan's box = 176
The ratio of the nails in John's box is given as follows;
The ratio of small nails in John's box = 65/(65 + 40 + 45) = 13/30
The ratio of medium nails in John's box = 40/(65 + 40 + 45) = 4/15 = 8/30
The ratio of large nails in John's box = 45/(65 + 40 + 45) = 3/10 = 9/30
Given that the proportion of the nails in John's box and Susan's box are the same, we have;
The ratio of medium nails in Susan's box = 8/30
Therefore;
Where the total number of nails in Susan's box = X, we have;
8/30 × X = 176
X = 176 × 30/8 = 660 nails
The total number of nails in Susan's box = 660 nails.
Using proportions, it is found that the total number of nails in Susan's box was 660.
---------------
John had 65 + 40 + 45 = 150 nails.The proportion of medium nails is: [tex]\frac{40}{150}[/tex]Susan's box has x nails.Of those nails, 176 are medium. Thus, the proportion of medium nails out of the total in Susan's box is of: [tex]\frac[176}{x}[/tex]---------------
Since the proportions are equal:
[tex]\frac{40}{150} = \frac{176}{x}[/tex]
[tex]40x = 150\times176[/tex]
[tex]x = \frac{150\times176}{40}[/tex]
[tex]x = 660[/tex]
The total number of nails in Susan's box was 660.
A similar problem is given at https://brainly.com/question/19905617
A church spire casts a shadow on the level ground. At the tip of the shadow, the tip of the spire lies 25° upward. Walking 100 m closer, the tip of the spire is at an angle of 55°. What must be the height of the spire in Figure 2?
Answer:
The height of the spire must be 69.24 m
Step-by-step explanation:
The information given are;
The initial angle of elevation of the tip of the spire from the tip of the shadow = 25°
The angle of elevation of the tip of the spire from the tip of the shadow after moving 100 m closer = 55°
The change distance moved closer to the church spire = 100 m
Let the base angles of the triangle formed by the two rays of the tip of the spire to the tip of the shadow be 25° and ∠x°
We have;
∠x° and the 55° angle of the ray from the tip of the spire to the tip of the shadow are supplementary angles (angle on a straight line)
Therefore;
∠x° = 180° - 55° = 125°
The calculated angle 125° above, the given 25° and the angle in between the two rays from the tip of the spire to the tip of the shadows are the interior angles of the triangle formed by the two rays of the tip of the spire to the tip of the shadow
Let the angle in between the two rays from the tip of the spire to the tip of the shadows = y
Therefore;
125° + y° + 25° = 180 (Angle sum theorem)
y° = 180° - (125° + 25°) = 30°
By sin rule, we have;
100/(sin (30°)) = (The length of the initial ray from the tip of the spire to the tip of the shadow before the shift)/(sin(125°))
Let the length of the initial ray from the tip of the spire to the tip of the shadow before the shift = l
100/(sin (30°)) = l/(sin(125°))
l = (sin(125°))×100/(sin (30°)) = 163.83 m
The height of the spire, by trigonometric ratio = sin(25°) × 163.83 m = 69.24 m
The height of the spire = 69.24 m.
Sarah and Homer each have a cylinder. Sarah's cylinder has a diameter of 9 cm and a height of 4 cm. Homer's cylinder has a diameter of 4 cm and a height of 9 cm. Find the surface area of Sarah's cylinder, in square centimetres. Round your answer to two decimal places. answer fast plz its urgent
Answer:
240.37 cm^2
Step-by-step explanation:
The question is on the mensuration of solids, a cylinder
Given data
height of cylinder h= 4 cm
diameter d= 9 cm
radius = d/2= 9/2= 4.5 cm
we know that the surface area of cylinder is
[tex]SA= 2\pi r h+ 2\pi r^2[/tex]
Substituting our data into the expression we have
[tex]SA= 2*3.142 *4.5* 4+ 2*3.142 4.5^2[/tex]
[tex]SA= 113.12+ 127.25\\\\SA= 240.37 cm^2[/tex]
Therefore the total surface area is 240.37 cm^2
Which of the following numbers are perfect squares? Choose all that apply. A 27 D 108 B 36 E 121 C 81 F 169
(x+4) (x+10)
simplify
Answer:
x^2 + 14x + 40.
Step-by-step explanation:
(x+4) (x+10)
= x(x + 10) + 4(x + 10) ( By the Distributive Law)
= x^2 + 10x + 4x + 40
= x^2 + 14x + 40.
Answer:
x^2+14x+40
Step-by-step explanation:
xx+x*10+4x+4*10= xx+10x+4x+4*10
Then simplify
x^2+14x+40
I hope this helps!
Simplify the following expression: 4(y + 3) − 6(y − 2) + 5
Answer:
-2y +29
Step-by-step explanation:
Answer:
-2y+29
Step-by-step explanation:
find a9 if the geometric sequence is: 567,-189,63
Answer:
3720087
Step-by-step explanation:
Given that,
A geometric sequence : 567,-189,63
First term is : 567
Common ratio : 567/-189 = -3
The nth term of a GP is given by :
[tex]a_n=ar^{n-1}[/tex]
n = 9
So,
[tex]a_9=567\times (-3)^{9-1}\\\\a_9=3720087[/tex]
So, the 9th term of the geometric sequence is 3720087.
8 -4s = s + 13 Solve for S
Answer:
s = -1
Step-by-step explanation:
8 - 4s = s + 13
-4s - s = 13 - 8
-5s = 5
s = 5/-5
s = -1
probe:
8 - 4*-1 = -1 + 13
8 + 4 = 12