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3 years ago

Use mental math to find us some draw or describe the strategy you used 52+19 = 71

1 answer:

7 0

1. Set up long addition.

5 2
+1 9
______

2. Calculate 2+ 9, which is 11.
Since 11 is two-digit, we carry the first digit 1 to
the next column.
1
5 2
+1 9
_____
1

3. Calculate 5+1, which is 6. Now add the
carry digit of 1, which is 7.
1
5 2
+ 1 9
______
7 1

4. Therefore, 52 + 19 = 71.

71

You might be interested in

Solve 2x2 + 20x = −38.

Makovka662 [10]

Answer:

Correct Answer is C(−5 ±square root 6)

Step-by-step explanation:

2x^2+20x+38=0

2(x^2+10x+19)=0

x^2+10x+19=0

This is a quadratic equation here we have used following formula to find the roots of this equation

x=-b−±square root (b^2-4*a*c))/2*a......(1)

Here,

a=1

b=10

c=19

put values of a, b and c in equation (1)

x=(-10 ±square root(10^2-4*1*19))/2*1

x=(-10 ±square root(100-76))/2

x=(-10 ±square root(24))/2

x=(-10 ±square root(2*2*6))/2

x=(-10 ±2square root(6))/2

x=2(-5 ±square root(6))/2

x=-5 ±square root(6)

Hope this answer will help you

6 0

3 years ago

Help me please this is so hard

maxonik [38]

Answer: D. 136in^2

Step-by-step explanation:

Find the surface area if all sides and add

4*10=40

2*4=8

4*10=40

2*10=20

40+40+8+8+20+20=136

136in^2

3 0

3 years ago

The parent function f(x) = x3 is translated to form g(x), as shown on the graph. The translated function can be written in the f

OLEGan [10]

Answer: First option

Step-by-step explanation:

By definition, the horizontal shift depends on the value of h and the vertical shift depends on the value of k.

$f(x)=(x-h)^3$ indicates that the function if shifted to the right h units.

$f(x)=(x+h)^3$ indicates that the function if shifted to the left h units.

$f(x)=f(x)-k$ indicates that the function if shifted down k units.

$f(x)=f(x)+k$ indicates that the function if shifted up k units.

Then:

If h is positive, the graph will shift to the right.

If k is negative, the graph will shift down.

As you can see in the graph, the function is shifted 4 units to the right and 2 units down. Therefore g(x) has the form:

$g(x)=(x-4)^3-2$

Where:

$h=4\\k=-2$

7 0

3 years ago

What integer and-8 have the product of -96

laiz [17]

That would be 12
12 times -8 = -96!

:) Have a nice day and maybe consider grading this answer brainliest? <3

7 0

3 years ago

Read 2 more answers

A pyramid of logs has 2 logs in the top row, 4 logs in the second row from the top, 6 logs in the third row from the top, and so

mamaluj [8]

Answer:

1) Is the pattern an arithmetic sequence?

Yes it is

2)Identify a and d.

a = First term = 2

d = Common difference = 2

3) Write the 50th term of the sequence.

50th term = 100

4) Find the total number of logs in the first 10 rows.

= 1010 logs

Step-by-step explanation:

Is the pattern an arithmetic sequence?

Yes it is

2) Identify a and d.

A pyramid of logs has 2 logs in the top row, 4 logs in the second row from the top, 6 logs in the third row from the top, and so on,

The formula for arithmetic sequence =

an = a+ (n - 1)d

a = First term

d = Common difference

For the above question:

a = 2

d = Second term - First term

= 4 - 2

d = 2

3) Write the 50th term of the sequence.

Using the formula for arithmetic sequence

an = a+ (n - 1)d

a = 2

n = 50

d = 2

a50 = 2 + (50 - 1)2

= 2 + (49)2

= 2 + 98

= 100

The 50th term = 100

4)Find the total number of logs in the first 10 rows.

Sum of first n terms = n/2(a + l)

n = 10

a = first term = 2

We are told that there are 200 logs in the bottom row, hence:

l = last term = 200 logs

Hence,

Sn = 10/2×[ (2 + 200

= 5(202)

= 1010 logs

7 0

3 years ago