Answer:
pls say whats the answer choices?
Step-by-step explanation:
once u tell me ill put the answer in the comments
Multiplicación y división de números decimales positivos
Actividad 1.- Realiza el calculo de las siguientes multiplicaciones sin utilizar calculadora.
78×10=780
78×100=7,800 78×1000=78,000 31×100=3,100 135×1000=135,000
267×10=2,670
3825×100=382,500
6×100=600
15×10=150
Responde correctamente:
Qué observas al multiplicar un número natural por 10,100 o 1,000? Simplemente primero los números los multiplicó por el 1 y simplemente los 0 (cero) los agregó, y también que aumentan los ceros.
Actividad 2.-Haora multiplica un número decimal por 10,100 o 1,000 y observa que pasa.
0.2×10=2
0.02×100=2
0.002×1,000=2
0.13×100=13
0.489×1,000=489
0.3×10=3
0.76×1,000=760
0.84×100=84
6×100=600
Responde correctamente:
Qué observas al multiplicar un número decimal por 10,100 o 1,000?
Lo único que tendremos que hacer es mover la coma del decimal a la derecha tantas posiciones como ceros tenga el número.
Actividad 3.-Resuelve los siguientes problemas y haz las operaciones sin calculadora.
A) Un kilogramo de frijol cuesta $20.50, cuánto cuestan 100 kilogramos?
Kilogramo= $20.50
100 Kilogramos= $2050.00
20.50×100=2050.00
1) Todo número entero multiplicado por un múltiplo de 10 hereda los ceros de aquel múltiplo.
2) Si el número es decimal, entonces la coma es desplazada una cantidad de posiciones a la derecha equivalente a esos ceros heredados.
3) 100 kilogramos de frijol cuestan $ 2050.
1) Los casos a realizar sin necesidad de calculadora están correctamente desarrollados, puesto que observan la regla mnemotécnica de que todo número entero multiplicado por un múltiplo de 10 hereda los ceros de aquel múltiplo.
2) De manera semejante a 1), los casos a realizar sin necesidad de calculadora están correctamente desarrollados. Si el número es decimal, entonces la coma es desplazada una cantidad de posiciones a la derecha equivalente a esos ceros heredados.
3) La cantidad total ([tex]C[/tex]), en pesos, por 100 kilogramos de frijol es igual al precio unitario ([tex]c[/tex]), en pesos por kilogramo, por la masa comprada ([tex]m[/tex]), en kilogramos, es decir:
[tex]C = m\cdot c[/tex] (1)
[tex]C = 100\,kg\times 20.50\,\frac{\$}{kg}[/tex]
[tex]C = \$ \,2050[/tex]
100 kilogramos de frijol cuestan $ 2050.
Invitamos cordialmente a ver esta pregunta sobre decimales: https://brainly.com/question/24501213
3b+(-5)=(2b)³(-3)2+6=?
Answer:
b=-1
Step-by-step explanation:
given.3b+(-5)=(2b)³(-3)2+6=?
3b-5=8b-6+6
3b-5=8b
-5=8b-3b
-5=5b
-5/5=5b/5
b=-1
-3-5=-8-6+6=?
-8=-8=-8
Question 1
o
In A CDE, U is the centroid, UK = 12, EM = 21, and UD = 9. Find CU.
-
U 12
K
9
Next Question
M
Check Answer
2021 McGraw-Hill Ede
Answer:
is it this?I just searched
Evaluate each function.
Help me please
f(x) = -2x^2- 1; Find f(-4)
Answer:
-33
Step-by-step explanation:
Sara’s mother is now four times as old as Sara. In five years, she will be three times as old as Sara. What are their ages now?
Answer:
Sara's mother age : 40 years
Sara's age : 10 years
Step-by-step explanation:
Let Sara's mother age be x
and Sara age be y
Given , Sara's mother is now four time as old as Sara
• x = 4y ...1
also, in five years , she will be three times as old as Sara
In five years , Sara's mother age :- ( x + 5 )
Sara age :- ( y + 5 )
according to the question,
x + 5 = 3 ( y + 5 )
x + 5 = 3y + 15
x - 3y = 10 ... 2
putting value of x from 1 into 2
4y - 3y = 10
y = 10
putting y value in 1
x = 4y = 4 ( 10 ) = 40
So, Sara's mother age is 40years
and Sara's age is 10years .
Help please I need to pass
Answer:
(x+8, y+4).
Step-by-step explanation:
8 units to the right followed by 4 units up.
A scale drawing for a plot of land is shown below.
In the drawing, 5 cm represents 6 m.
Assuming the backyard is rectangular, find the area of the real backyard.
Answer:
72m
Step-by-step explanation:
since 5cm is 6m, just take 5 and make it 6, so 10cm is 12m and 5cm is 6m
multiply, and you get the answer
WHAT IS THIS. draw the line x=2 on the grid. please help
Answer The picture shows you where to place your line
Step-by-step explanation:
4+(−3)+(−2)
help me plllllzzzzzzzzz
Answer:
the awnser is -1
Step-by-step explanation:
4+(-3)=1
1+-2=-1
Answer:
-1
Step-by-step explanation:
First, lets combine like terms (negatives with negatives)
-3 + -2 = -5
4-5 simplified equations from before
4-5= -1
so your answer is -1
hope this helps :)
May I have help this subject really is stressful
Answer:
hm?
Step-by-step explanation:
[tex]\sf 2(4+9m)[/tex]
Rearrange terms
2(4+9m)
2(9m+4)
Distribute
2(9m+4)
18m+8
Solution
Solution18m+8
[tex]2(4+9m)[/tex]
[tex]2(9m+4)[/tex]
[tex]18m+8[/tex]
(Therefore, 18m+8 is the final answer)
In which quadrant(s) do the graphs of y=x^2 and y=3x+10 intersect?
Answer:
Quadrants I and II
Step-by-step explanation:
y = x²
y = 3x + 10
x² = 3x + 10 Substitute x² for y
x² - 3x - 10 = 0 set the equation = 0
(x - 5) (x + 2) Factoring
x - 5 = 0 ; x + 2 = 0
x = 5 or x = -2
Now solving the y
y = x² or y = x²
y = (5)² or y = (-2)²
y = 25 or y = 4
The points of interception is points (5, 25) or (-2, 4)
(5, 25) in Quadrant I ; (-2, 4) in Quadrant II
write the repeating decimal as a fraction 0.75
the 75 is repeating
Let x = 0.757575... . Then
100x = 75.757575...
and so
100x - x = 75.757575... - 0.757575...
99x = 75
x = 75/99 = 25/33
Use the graph to determine which statement describes fx).
Answer:
I think the answer is 4.5,2
I think that is the answer.
Please help! It’s an emergency I’ll mark brainliest for a right/real answer!
Answer:
refer to attachment
Step-by-step explanation:
hope it helps you
19th. = 120 yds
plzz plzzz plzz mark as brainliest.
helppp ill give you brainliest
Answer:
A!
Step-by-step explanation:
5
What are the slope and y-intercept of the linear function
graphed to the left?
4
3
NG
O slope: -2; y-intercept: 2
O slope: - : y-intercept: 1
O slope: 1; y-intercept: 2
2
5 -3 -2 -11
-2+
TY?
O slope: 2; y-intercept: 1
-4
Answer:
(2)
Step-by-step explanation:
slope:-1/2
y-intercept:1 (because the function passes (0,1))
The slope of the linear function is -2 and the y-intercept is 2. Therefore, the correct answer is: slope: -2; y-intercept: 2.
What is linear function?A linear function is a type of function where the rate of change of the dependent variable (y) with respect to the independent variable (x) is constant. In other words, the graph of a linear function is a straight line.
To determine the slope and y-intercept of the linear function graphed, we can use the slope-intercept form of a linear equation, which is:
y = mx + b
Where m is the slope and b is the y-intercept.
Looking at the graph, we can see that the line passes through the y-axis at the point (0, 2), which means that the y-intercept is 2. To find the slope, we can choose any two points on the line and use the formula:
slope = (change in y) / (change in x)
For example, we can choose the points (-1, 0) and (1, -4) which lie on the line. The change in y is -4 - 0 = -4, and the change in x is 1 - (-1) = 2. Therefore, the slope is:
slope = (change in y) / (change in x) = -4 / 2 = -2
Hence, the slope of the linear function is -2 and the y-intercept is 2. Therefore, the correct answer is:
slope: -2; y-intercept: 2
Thus, the answer is slope: -2; y-intercept: 2.
For more details regarding linear function, visit:
https://brainly.com/question/21107621
#SPJ7
I need help asap please help me
Answer:
B. Alternate exterior angles
Step-by-step explanation:
3x = 243
Which value of x will make the equation true?
O A. 4
4
O B. 5
5
O c. 6
O
D. 27
O E. 81
Answer:
81
Step-by-step explanation:
I need help solving this problem
x=8
I hope this helps I would appreciate brainliest if possible :)
Answer:total is 180. Subtract 100. Then it’s 80
Step-by-step explanation:
180-100=80 degrees. It applies for the ones across.
In basic the answer is x=80
Please help I’ll give brainily
Answer:
C
Step-by-step explanation:
Equations of lines that are perpendicular have gradients that are negative reciprocals of each other. This means that the gradient of one of the lines is negative 1 times the fraction flipped.
With the equations presented in the form y = mx + c, the gradient is m. This means you need to look for the values of m where one is the negative reciprocal of the other.
In C, the first gradient is 6/11. The reciprocal (flipped) is 11/6. Make this negative and you get -11/6, which is the gradient of the second equation, so these lines are perpendicular.
write down the inequality shown on the number line
Answer:
[tex]x<-6; x\ge2[/tex]
Step-by-step explanation:
We're taking values from -6 and behind, and the dot over -6 is empty, so it's not included. That means [tex]x<-6[/tex]. Moreover, the rest of the line goes from 2, with a solid dot, and ahead. That translates in [tex]x\ge 2[/tex]
Maria spent 75 minutes practicing the piano over the weekend. Lydia practiced the clarinet for 76% as much time as Maria practiced the piano
Answer:
what is the question? If the question is how much time Lydia practiced, then the answer would be 75 x 76% = 57 minutes
Solve pls brainliest
Explain
Answer:
A. -10
B. 147
Step-by-step explanation:
-90 ÷ 9 = -10
7 · 21 = 147
Hope this helps!
add or subtract the polynomials
(8x3+3x-2)+(9x2-7+3x-2x3)
Answer:
10x^3+9x^2-9
Step-by-step explanation:
8x^3+2x-2+9x^2-7+2x-2x^3 - Combine like terms
10x^3+9x^2-9
Answer:
[tex]\boxed{\boxed{\sf 6x^3+9x^2+6x-9}}[/tex]
Step-by-step explanation:
[tex]\sf \left(8x^3+3x-2\right)+\left(9x^2-7+3x-2x^3\right)[/tex]
[tex]\sf 8x^3+3x-2+9x^2-7+3x-2x^3[/tex]
Note: If there is a negative sign in front of parentheses, each term within the expression changes sign.
[tex]\Longrightarrow \sf 8x^3+3x-2+9x^2-7+3x-2x^3[/tex]
Now, we need to organize expression into groups like terms:
[tex]\Longrightarrow \sf (8x^3, -2x^3)\: (3x, 3x)\:(-2,-7)[/tex]
[tex]\longmapsto\sf 8x^3-2x^3=6x^3[/tex]
[tex]\longmapsto\sf 3x+3x=6x[/tex]
[tex]\longmapsto\sf -2-7=-9[/tex]
[tex]\boxed{\sf 6x^3+9x^2+6x-9}[/tex]
_____________________________
A new discount cell phone service charges $55 a month plus $15.00 for every line on the plan. Choose the linear function that represents the relationship between
the number of lines (x) and the cost of the plan (y) per month.
Answer:
y = 15x + 55
Step-by-step explanation:
2b - 3 / 3 (fraction) - 5 = 10.
Solve for B
Step-by-step explanation:
2b - 3/3 - 5 = 10
2b - 1 - 5 = 10
2b - 6 =10
2b -6 +6 = 10 +6
2b = 16
b = 8
Help someone asapppp
Answer:
30
Step-by-step explanation:
Find the equation of the line that passes through the points (-1,8)
and (2, -1). Write your equation in slope-intercept form. Show all
work to support your answer.
Answer:
y = -3 * x + 5
Step-by-step explanation:
We start with the equation for slope-intercept y = mx + b -
Y is any y point on the line. X is any x point on the line. M is the slope of the line. B is the y-intercept of the line.
We first find the slope by using this equation (y2 - y1) / (x2 - x1) -
(8 - (-1)) / ((-1) - 2)
9 / (-3)
Slope = -3
Now we insert the slope into the equation -
y = -3 * x + b
As said before, Y is any y point on the line and X is any x point on the line, so we can choose a random point and insert it in to find the y-intercept -
-1 = -3 * 2 + b
-1 = -6 + b
b = 5
The y-intercept of the line is (0, 5)
We insert the y-intercept in the equation -
y = -3 * x + 5
y = -3 * x + 5 is our answer to the problem.
∠A and \angle B∠B are supplementary angles. If m\angle A=(7x-15)^{\circ}∠A=(7x−15)
∘
and m\angle B=(2x-3)^{\circ}∠B=(2x−3)
∘
, then find the measure of \angle A∠A.
Answer:
m ∠ A = 139° ; m ∠ B = 41°
Step-by-step explanation:
Supplementary angles sum = 180°
m ∠A + m ∠ B = 180°
(7x - 15) + (2x - 3) = 180°
9x - 18 = 180°
9x = 180 + 18
9x = 198°
x = 22
m ∠A = 7x - 15 = (7·22) - 15 = 154 - 15 = 139°
m ∠ B = 2x - 3 = (2·22) - 3 = 44 - 3 = 41°
Check: m ∠ A + m ∠ B = 180°
139° + 41° = 180
