168 prime numbers exist between 1-1000.
The work is actually unrelated to math, so I won't bother posting the explanation. However, I can give some detail as to how I did it. If you know how to program, you can set up a simple for loop for all numbers 1-1000, and have a check function that checks if the number is prime or not.
Answer:
- 63 ft²
- h = 2A/b; h = 7 ft
Step-by-step explanation:
1. Put the values where the variables are in the formula, then do the arithmetic.
... A = (1/2)bh = (1/2)(18 ft)(7 ft) = 63 ft²
2. Divide by the coefficient of h. Substitute the given values and do the arithmetic.
... A = (1/2)bh
The coefficient of h is b/2, so we divide by that—or multiply by its inverse, 2/b.
... 2A/b = h
Substituting the given numbers, you have ...
... 2(28 ft²)/(8 ft) = h = 7 ft
The height of the triangle is 7 ft.
The area of a circle is pi*r^2
22/7*14^2=<span>616
The answer is 616 cm^2
</span>
<span><span /><span>In this problem, it is stated that Darcy uses
block in order to show the value of the number.
Place value blocks are commonly used to help or support the students to
investigate the place value of the given number. It would be easy for Darcy to
use a material to know the number she’s looking for.
It says here that she used 4 thousand blocks and 500 hundred blocks.
Thus, the number she’s looking for is:
=> 4thousand + 5hundred
=>4000 + 500
=> 4500</span></span>
Answer:
Assuming you want the answer in slope-intercept form, it’s <u>y = -5x + 11</u>
Step-by-step explanation:
So we have to first use point-slope form, y - y1 = m (x - x1)
If we plug the numbers in we get...
y + 4 = -5 (x - 3) (take out parenthesis)
y + 4 = -5x + 15 (now subtract 4 from 15)
<u>y = -5x + 11</u>
I think this is right
