Answer:
Total um of the digits of the first 25 numbers is 127
Step-by-step explanation:
Notice that:
The sum of the digits:
0+1+2+3+4+5+6+7+8+9 = 45
Also notice that the addition of:
10+11+12+13+14+15+16+17+18+19=0+1+2+3+4+5+6+7+8+9 + 10*1 = 45 + 10 = 55
And for the last 6 numbers:
20+21+22+23+24+25 = 0+1+2+3+4+5 + 2 * 6 = 15 + 12 = 27
So the total sum of all this is: 45 + 55 +27 = 127
What is (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x), simplified?
Answer:
4.4x+1.5Step-by-step explanation:
[tex](1.6x + 7.3) + (-0.6x + 2) - (7.8 -3.4x)\\Ope- the- brackets\\1.6x+7.3-0.6x+2-7.8+3.4x\\Collect-like-terms\\1.6x-0.6x+3.4x+7.3+2-7.8\\4.4x+1.5[/tex]
Answer:
4.4
Step-by-step explanation:
how do you calculate a length of a triangle
Answer:
Perimeter-width=Length
Hope this helps :)
Answer:
Area- A= b (base) times h (height) divided by 2
Perimeter- P= a+b+c
Step-by-step explanation:
A chef cooked 7 kg of mashed potatoes for a banquet. If the guests only ate 34of the amount he cooked, how much of the potatoes were eaten?
Answer:
2.38 Kg were eaten
Step-by-step explanation:
first we should divide 34 by 100
the result will be 0.34
then we multiply 0.34 x 7 Kg = 2.38 Kg
Which table represents a linear function
Answer:
The first photo
Step-by-step explanation:
Its a i think
) We throw 9 identical balls into 7 bins. How many different ways are there to distribute these 9 balls among the 7 bins such that no bin is empty? Assume the bins are distinguishable (e.g., numbered 1 through 7).
Answer:
28 ways
Step-by-step explanation:
After placing 1 ball in each of the seven bins, there are two balls left.
If we place both balls in a single bin, there are 7 different ways to place the balls (place both on bins 1 through 7).
If we place each of the remaining balls in a different bin, the number of ways to place the balls is:
[tex]n_2=\frac{7!}{(7-2)!2!}=7*3=21[/tex]
The total number of ways to distribute those balls is 21 + 7 = 28 ways.
HELP
Find the volume of the sphere in terms of Pi
Answer:
Hey there!
The volume of a sphere is 4/3pir^3
If d=5, then r=2.5,
Thus, we have 4/3(15.625)pi
20.83pi
The first choice is correct.
Hope this helps :)
Answer: num 1
Step-by-step explanation:
4/3*pi*r^3
4/3*pi*15.625
20.83*pi
hope i halped
can i get brainliest?(im trying to level up)
pls
-Zylynn
Find the value of x in the triangle
shown below.
Answer:
x=62
Step-by-step explanation:
In an isosceles triangle opposite sides are equal and sum of the sides is 180 degree
So, if we name them 'angle a', 'angle b' and 'angle c'
angle a= 56
a+b+c= 180
using the isosceles triangle formula b=c,
56+b+c=180
name b,c as x
56+2x=180
2x= 180-56
2x= 124
x=62
HOPE IT HELPS :)
PLEASE MARK IT THE BRAINLIEST!
The value of x in the triangle will be 62°
What is mean by Triangle?
A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
Given that;
Two sides of triangle = 6
So, This is an isosceles triangle.
Third side of a triangle = 5.7
Now,
Since, The given triangle is an isosceles triangle.
So, It has measure of two angles = x°
And, The measure of third angle = 56°
Since, The sum of all angles of a triangle = 180°
Substitute all the value of angles, we get;
x° + x° + 56° = 180°
Solve for x as;
2x + 56 = 180
Subtract 56 both side,
2x + 56 - 56 = 180 - 56
2x = 124
Divide by 2, we get;
x = 62°
Thus, The value of x in the triangle will be 62°
Learn more about the triangle visit:
https://brainly.com/question/23945265
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PLEASE ANSWER ASPA Using the distance formula, what is the distance of C (-4, -2) and D (3, 5)?
Answer:
Approximately 9.90 units.
Step-by-step explanation:
The distance formula is:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Let (-4,-2) be x1 and y1, and (3,5) be x2 and y2.
Plug in the numbers:
[tex]d=\sqrt{(3-(-4))^2+(5-(-2))^2}[/tex]
[tex]d=\sqrt{7^2+7^2}[/tex]
[tex]d=\sqrt{2(7)^2}[/tex]
[tex]d=7\sqrt{2}[/tex]
Question 5 PLEASE HELP What is the graph of 3x+6y=-18
Answer:
hope this helps uh...!!!
Answer:
Step-by-step explanation:
3x+6y=-18
y=-3x/6-18/6
y=-1/2 x-3
A soccer player gets 2 points for a goal and 1 point for an assist. If the combined number of goals and assists that a player has is 24, and the total number of points that the player has is 42, which system of equations can be used to determine the number of goals and assists the player has? Assume g represents the number of goals and a represents the number of assists.
A)g + a = 24. g + 2 a = 42.
B)g + a = 24. 2 g + a = 42.
C)g + a = 42. g + 2 a = 24.
D)g + a = 42. 2 g + a = 24.
Answer:
B
Step-by-step explanation:
The soccer player has g goals and a assists.
For every goal, he/she gets 2 points and for every assist, he/she earns 1 point. This means that if we multiply g by 2, we get the number of points the player receives from g goals and if we multiply a by 1, we get the number of points the player receives from a assists.
And, that total number of points is equal to 42, so we can write:
2 * g + 1 * a = 42
2g + a = 42
Now, we understand that g and a are the number of goals and assists the player has made, and we also know that the total number of such kicks is 24, so we can write:
g + a = 24
Thus, our system is:
g + a = 24
2g + a = 42
The answer is B.
~ an aesthetics lover
Answer:
The correct answer is B. g + a = 24. 2 g + a = 42
Work out the temperature after this change. The temperature starts at −2 °C and it falls by 8 °C.
Answer:
-10 degree celsius
Explaination:
(-2) - 8
= -2 + -8
= -10 degree celsius
Hope this helps and pls mark as brianliest :)
What is the period of the function y= 3/2 cot(3/5x) +5?
A. Pi/5 units
B. 3pi/5 units
C. 2pi/3
D. 5pi/3
Answer:
D; 5pi/3 units
Step-by-step explanation:
Here, we want to find the period of the function;
y = 3/2 cot (3/5x) + 5
By definition, the period of a function is the interval between two matching points in the function.
Let’s say it is the distance between two peaks, crests, etc on a function.
To find the value of the period. We shall standardize the function.
What this means is that we shall be writing the function in the standard form.
The standard form is as follows;
f(x) = A trig(Bx -C) + D
Where trig refers to the accompanying trigonometric function in question.
Comparing this standard form with our question, we can see that;
A is 3/2
B is 3/5
C is 0
D is 5
Now for cot and tan functions, we shall need to divide pi by the absolute value of B
Thus we have; pi divided by 3/5 which gives 5pi/3 units
Answer:
D. 5pi/3, period is the distance between the repetition of a function.
Step-by-step explanation:
How long will it take an airplane to travel 1,250 km if it is traveling at 150 km/hr ?
Answer:
[tex]\boxed{Time = 8.33 hrs}[/tex]
Step-by-step explanation:
Given:
Distance = S = 1250 km
Speed = v = 150 km/hr
Required:
Time = t = ? hrs
Formula:
Speed = Distance / Time
Solution:
Rearranging the formula
=> Time = Distance / Speed
=> Time = 1250/150
=> Time = 8.33 hrs
PLEASE HELP VERY URGENT ITS DUE TODAY PLEASE HELP Complete the table for the given rule. Rule: y=1/4x + 1
X Y
4
8
12
Answer: Y = 2 ; 3 ; 4
Step-by-step explanation:
Given the rule : y=1/4x + 1
X = 4, 8, 12
When x = 4
y = 1/4(4) + 1
y = 1 + 1
y = 2
When x = 8
y = 1/4(8) + 1
y = 8/4 + 1
y = 2 + 1
y = 3
When x = 12
y = 1/4(12) + 1
y = 12/4 + 1
y = 3 + 1
y = 4
Therefore ;
X - - - 4 - - - 8 - - - 12
Y - - - 2 - - - 3 - - - 4
simplify the expression (x - 2y) + (3x + 4y)
Simplifying the expression (x - 2y) + (3x + 4y).
Work:
(x - 2y) + (3x + 4y)
Combine like terms.
x + 3x = 4x
-2y + 4y = 2y
Reform the expression.
4x + 2y
Simplified Expression: 4x + 2y.
Meline has 4 different coloured crayons and 2 different boxes. How many different ways can Meline put all 4 different crayons into 2 boxes so that each box has at least 1 crayon?
Answer:
3 different waysStep-by-step explanation:
If Melinda has 4 different crayon and 2 different boxes and she is to put all 4 crayons into the two boxes so that each box has at least 1 crayon, this can be achieved as follows. Note that at least one crayon must be in each box, this means no box must be left empty. Each box can take any number of crayon from 1 and above.
First box Second box
1 crayon 3 crayons (first way)
2 crayons 2 crayons (2nd way)
3 crayons 1 crayon (3rd way)
This means that crayons can be divided into each box in 3 different ways provided that each box has at least 1 crayon.
Classify the following triangle. Check all that apply.
Answer:
Isosceles, obtuse triangle
Step-by-step explanation:
The triangle is isosceles since there are equal acute-angles which therefore prove two equal sides.
The triangle is obtuse because it consists of one obtuse angle which is 98 and is greater than 90 degrees.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
Find the value of b. Round your answer to the nearest tenth.
The figure shows acute triangle A B C. The measure of angle B is 40 degrees. The length of side A B is 10. The length of side B C is 12. The length of side C A is b.
Answer:
Side CA = 7.8
Step-by-step explanation:
Given:
Acute angled [tex]\triangle ABC[/tex].
[tex]\angle B =40^\circ[/tex]
AB = 10
BC = 12
We can use cosine rule here to find the side AC = b
Formula for cosine rule:
[tex]cos B = \dfrac{a^{2}+c^{2}-b^{2}}{2ac}[/tex]
Where
a is the side opposite to [tex]\angle A[/tex]
b is the side opposite to [tex]\angle B[/tex]
c is the side opposite to [tex]\angle C[/tex]
[tex]cos 40 = \dfrac{12^{2}+10^{2}-b^{2}}{2\times 12\times 10}\\\Rightarrow cos 40 = \dfrac{144+100-b^{2}}{240}\\\Rightarrow 0.77 = \dfrac{244-b^{2}}{240}\\\Rightarrow 244-b^{2} = 0.77 \times 240\\\Rightarrow 244-b^{2} = 183.85\\\Rightarrow 244-183.85 = b^{2}\\\Rightarrow b^2 = 60.15\\\Rightarrow b = 7.76[/tex]
To the nearest tenth b = 7.8
If the computer costs $2150 and Melissa puts
$150 away each month, how long will it take her
to save enough money to buy the computer?
Answer:
14 months and 1/3 of a month
Step-by-step explanation:
We can find how many months it will take by dividing the cost by the amount she puts away each month:
2150/150 = 14.33
So, it will take her 14 and 1/3 of a month
the length of a rectangle is twice its width, the perimeter of it is 36cm. what is the are of it
Answer: 72 cm²
Step-by-step explanation: lets take the width as x and length as 2x as length is twice the width= perimeter of rectangle is 2*(l+b)=36cm
So, 2×(2x+x)=36cm
2×3x=36cm
6x=36cm
X=36/6:6cm( width, since width was taken as x)
Length= 2x: 2×6=12cm
So area of the rectangle is( l*b):
12×6= 72cm²
15 POINTS!!!!! suppose f(x)=x find the graph of f(x+2) please include what the graph would look like
Answer:
The graph f(x+2) would make the graph go left by 2 units.
Step-by-step explanation:
Using graph transformations, adding two would make the graph go left 2 and subtracting would make it go right 2
Select the two values of x that are roots of this equation.
x - 5x+2=0
A. X=
5+33
B. X=
C. x=
5+ _17
2
D. x-5-3
Answer:
A and C
x = -(√17 - 5)/2, (√17 + 5)/2
Step-by-step explanation:
Quadratic Formula: [tex]x = \frac{-b +/-\sqrt{b^2-4ac} }{2a}[/tex]
Step 1: Use quadratic formula
a = 1, b = -5, c = 2
[tex]x = \frac{5 +/-\sqrt{(-5)^2-4(1)(2)} }{2(1)}[/tex]
[tex]x = \frac{5 +/-\sqrt{25-8} }{2}[/tex]
[tex]x = \frac{5 +/-\sqrt{17} }{2}[/tex]
Un campanario tarda 4s en tocar 5 campanadas , ¿Cuanto tardara en tocar 10 campanadas?
¿Cuanto tardara en tocar 10 campanadas?
Solve for x 5 x + 2 = 7 x − 4 plz help me
Answer:
3
Step-by-step explanation:
5 x + 2 = 7 x − 4
7x-5x= 2+4
2x= 6
x= 3
Answer:
The value of x in this equation is 3.
Step-by-step explanation:
5x + 2 = 7x - 4
Subtract 7x from both sides of the equation.
-2x + 2 = -4
Subtract 2 from both sides of the equation.
-2x = -6
Divide by -2 on both sides of the equation.
x = 3
I really need help with this question, it's confusing. It's geometry btw
Answer:
Two regular nonagons and nine congruent rectangle
Step-by-step explanation:
Two regular nonegon=on the surface and base..
Nine congruent rectangle=look at beside it will be look like 9 rectangle.. I hope it will be right.
Factor this polynomial completely.
15x^2 - 11X - 12
Need help ASAP!!
Answer:
( 5 x + 3 ) ( 3 x − 4 )
A
Step-by-step explanation:
the answer is A. (5x+3) (3x-4)
Can some one help me
Answer:
Step-by-step explanation:
divide 4 and 2 then add 2 and 1
Answer:
y = - 4x + 17
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (4, 1) and (x₂, y₂ ) = (2, 9)
m = [tex]\frac{9-1}{2-4}[/tex] = [tex]\frac{8}{-2}[/tex] = - 4, thus
y = - 4x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (4, 1) , then
1 = - 16 + c ⇒ c = 1 + 16 = 17
y = - 4x + 17 ← equation of line
After losing 3 baseball cards, Peter gave half of his remaining cards to Bobby. If Peter gave Bobby 9 baseball cards, how many cards did Peter start with?
Answer:
Peter started with 21 cards
Step-by-step explanation:
half of his card that gave to bobby =9
so the other half is 9
9+9=18
18+3 cards that he lost at the beginning=21
Answer:
Substitute 21 for X in the original equation YES
Substitute any number for X in the original equation NO
Bobby’s claims that x=21 is correct YES
The result of verifying Bobby's work is 9=9 YES
The result of verifying Bobby's work is 21=21 NO
Step-by-step explanation:
got right on edg
El entrenamiento de basquet se una situación de una institución educativa debe elegir a uno de los dos deportistas que están en la banca para que ingrese al campo en un partido decisivo durante los juegos deportivos escolares nacionales. Pará tomar la decisión, consulta una tabla con la puntuación de cada uno de ellos en los partidos anteriores. Los puntos anotados por cada deportista de los cinco últimos partidos figuran en la siguiente tabla
Answer:
los pala de depotistas ingrese banca para tomar la decision
Step-by-step explanation:
FIND 2 RATIONAL NUMBER and two irrational numbers between 0.15 and 0.16
Answer:
Rational numbers:
Any terminating decimal is a rational number.
0.151
0.152
Irrational numbers:
Pi is irrational, so when pi is divided by a rational number, the result is irrational.
pi/20.8 = 0.151038108...
pi/20.7 = 0.151767761...