1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Maksim231197 [3]
3 years ago
7

Explain how using basic facts can help you find 10x20x30x40 mentally

Mathematics
2 answers:
natulia [17]3 years ago
5 0
1*2*3*4*10000
6*4*10000
24*10000
240000
11111nata11111 [884]3 years ago
3 0
Hi Softballgirl6! I would say that first, we could pretend that the zeros don't exist because we could add those in later. Then just working with 1x2x3x4, we could mentally solve this to 24 and then add in the extra 4 zeros that we left out at the beginning. This brings the answer to 240000. Hope this helps! :)
You might be interested in
Select the correct image. ​
slamgirl [31]

Answer:

Triangle 2

Step-by-step explanation:

That is Pythagorean Theorem, which is only for right triangles. The second triangle has the little square, so you know it is 90 degrees.

6 0
3 years ago
CANT GET WRONG<br><br> What is the measure of ∠ADC?<br> A) 42° <br> B) 47° <br> C) 121° <br> D) 131°
Dafna1 [17]
Add them
89+42=131


answer is D
7 0
3 years ago
Read 2 more answers
. En el triángulo ABC, la medida del ángulo exterior en el vértice B es el triple de la medida del ángulo C y la mediatriz de BC
Sliva [168]

Responder:

| AB | = 12m

Explicación paso a paso:

Verifique el diagrama en el archivo adjunto.

En el diagrama, se puede ver que el lado FC es igual al lado FB de acuerdo con el triángulo isósceles FBC.

Además, el lado FB es igual a AB ya que son paralelos entre sí.

De la declaración anterior, | FC | = | FB | y | FB | = | AB |

Esto significa | FC | = | FB | = | AB |

Por lo tanto desde | FC | = 12 m, | AB | = 12 m ya que ambos lados son iguales.

De ahí el lado | AB | se mide 12m

8 0
3 years ago
Can someone help me with this math homework please!
jolli1 [7]

Answer:

(-3,-6) and (-3,2)

Step-by-step explanation:

A line with an undefined slope is vertical. In this case it must have x coordinates equal to -3

4 0
3 years ago
Find the unknown measure of the rectangle.<br> Area =28 square centimeters <br>Height =?
taurus [48]
Area of rectangle = Length*width
A = 28  so 28 = 4 * height
height  = 28/4 = 7
6 0
3 years ago
Read 2 more answers
Other questions:
  • I need help please help me thank You so much you don't understand I'm homeless
    5·1 answer
  • 3x-5=1 What x value solves the equation?
    8·1 answer
  • When a number is decreased by 4.5%, the result is 90. What is the original number to
    6·1 answer
  • What number has 300 tenths and 7 thousandths
    12·1 answer
  • Simplify - 60(x^3-8)
    8·1 answer
  • Intr un album numarul de fotografii s a micsorat cu 50%. Cu cat trebuie sa se mareasca pentru a reveni la numarul initial? Raspu
    5·1 answer
  • Classify the pair of angles, (complementary, supplementary, or vertical), then find the value of X.
    13·1 answer
  • ABC IS A TRINAGLE <br>WORK OUT ANGLE X <br>GIVE YOUR ANSWER CORRECT TO 3 S.F​
    9·1 answer
  • Y + 4 = 1/2 (x+7)<br><br> Find a point of the line and the lines slope
    5·1 answer
  • the perimeter of a rectangle is 70 cm . if the ratio of the width to the length is 2:5 what is the width ?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!