2 years ago

Write four and twenty-six thousandths in standard form

1 answer:

6 0

426,000 * 10^-4. You can go use a standard form calculator. and if you don't have a physical one, you can use one online.

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Write the given vector in terms of i and j.

8_murik_8 [283]

The first number is coefficient for i, and the second number is coeff. for j
=>
<0,-8> is the same as 0i-8j, or simply 8j

5 0

3 years ago

Which of the following equals 140 to nearest 10

jarptica [38.1K]

Which of the following equals 140 to nearest 10
A.134

B.145

C.136

D.146

6 0

2 years ago

A sphere has a volume of 1,436 in3. What is its radius?

Gwar [14]

Answer:

do the reverse of pie r squared

Step-by-step explanation:

4 0

2 years ago

Prove that the difference between a two-digit number and the product of its digits will always be a 2 digit number.

slamgirl [31]

Step-by-step explanation:

Let the two-digit number is $xy$

This can be written as:

10x + y, where 1 ≤ x ≤ 9 and 0 ≤ y ≤ 9

The difference between the number and product of its digits is:

d = 10x + y - xy

Rewrite this as below:

d = 10x - xy + y - 10 + 10 =

x(10 - y) - (10 - y) + 10 =

(x - 1)(10 - y) + 10

We see that:

0 ≤ x - 1 ≤ 8 according to the condition given above
1 ≤ 10 - y ≤ 10 again according to the condition given above

The value of d is then:

0 + 10 ≤ d ≤ 8*10 + 10
10 ≤ d ≤ 90

<h3>Proved</h3>

7 0

2 years ago

Read 2 more answers

Find the solution to the system of equations below (you can do this by substitution or elimination).

rewona [7]

Step-by-step explanation:

y=6+4x, as equation (iii)

=> -5x-(6+4x)=21

=> -5x-6-4x=21

=> -5x-4x-6=21

=> -9x-6=21

=> -9x=21+6

=> -9x=27

x= -3, by dividing both sides by -9

So, by inserting x in the first equation,

=> -4(-3)+y=6

=> 12+y=6

=> y=6-12

=> y= -6.

Therefore, x= -3 and y= -6

8 0

2 years ago