All categories

3 years ago

Using compatible number to estimate the quotient 2116÷7

Mathematics

1 answer:

DerKrebs [107]3 years ago

3 0

Answer:

302

Step-by-step explanation:

7 goes into 21 3 times, so the first digit of the quotient is 3. There's no remainder. Bringing down the second "1," we find this indivisible by 7, and so bring down the 6.Thus, Remember that 7 goes into 14 2 times. Thus, a good estimate would be 302.

You might be interested in

Find roots of 4x^2-2x+9

Korolek [52]

discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0

since discriminant <0, graph is always positive, x has no real roots

4 0

2 years ago

There is a scale model of the White House in Tobu World Square in Japan. The scale used for the model is 1:25. The height of the

Cloud [144]

Answer:

3.4 multiply 1-4

Step-by-step explanation:

there is a scale of white house

3 0

2 years ago

Function A and Function B are linear functions. Compare the two functions and choose all that are correct.

Olegator [25]

Answer:

2 .The slope of Function A is less than the slope of Function B

Step-by-step explanation:

A graph of Function A shows it has a y-intercept of 4, the same as that of Function B. (Statements 3 and 4 are not correct.)

The slope of Function A is 2, which is less than the slope of 3 that Function B has. (Statement 2 is correct; statement 1 is not.)

_____

<em>More detailed working</em>

The slope of Function A can be figured easily between the points with x-values that differ by 1:

m = (y3 -y2)/(x3 -x2) = (24-22)/(10-9) = 2/1 = 2 . . . . . Fun A has slope of 2.

The slope of Function B is the coefficient of x in the equation: 3.

The y-intercept of Function A can be found starting with point-slope form:

y -22 = 2(x -9)

y = 2x -18 +22

y = 2x +4 . . . . . . . slope-intercept form

The intercept of +4 is the same as that of Function B.

5 0

2 years ago

Read 2 more answers

Simplificar: 8 – 14 + 7 +9 <br>

jeka57 [31]

Step-by-step explanation:

this is your answer.............

6 0

2 years ago

Read 2 more answers

How do I prove that these are the vertices of an isosceles triangle: (-3,0), (0,4), (3,0)?

castortr0y [4]

In an isoceles triangle two angles are equal
if u take the coordinates and apply it in the graph it makes and isoceles triangle
as the y-axis is zero two of the ends will be level and x-axis is equal on both sides of the origin so (0,4) will be the third non equal angle

3 0

2 years ago