Answer:
a= 1
b= 0
Step-by-Step Explanation:
I am not 100% sure on part A, however part B is correct because the difference between -2 and -1 is 1, so if you add 1 to -1 you get 0. Hence B= 0.
Again I am not 100% sure on part A, so you may need a second opinion.
Answer:
In word form - "Two and fifty-one hundredths." In expanded form - 2 + 0.5 + 0.01.
Step-by-step explanation:
To write a decimal in word form, we write out the words we would say as we read the decimal. When we read a decimal, we read the whole number before the decimal. This is "two." The decimal is read as "and." After this, we read the digits behind the decimal as a group; 51 would be read as "fifty-one", and since 1 is in the hundredths place, it is "fifty-one hundredths."
To write a number in expanded form, we separate the digits by place value. 2 is in the ones place, so it equals 2. 5 is in the tenths place, so it equals 0.5. 1 is in the hundredths place, so it equals 0.01. Together this gives us:
2 + 0.5
City hall to post office = 6 1/2 miles = represented by f
city hall to library site = 1 1/4 miles = represented by d
library site to post office = unknown. = represented by e
City hall to library site PLUS library site to post office IS EQUAL to city hall to post office
d + e = f
1 1/4 + e = 6 1/2
find e.
e = 6 1/2 - 1 1/4
e = 13/2 - 5/4
e = (13*2)/(2*2) - 5/4
e= 26/4 - 5/4
e = (26-5)/4
e = 21/4
e = 5 1/4 distance from library site to post office.
To check:
d + e = f
1 1/4 + e = 6 1/2
1 1/4 + 5 1/4 = 6 1/2
6 2/4 = 6 1/2
6 1/2 = 6 1/2
<span>In the question "Susu is solving the quadratic equation 4x2 – 8x – 13 = 0 by completing the square. Her first four steps are shown in the table.
In which step did Susu first make an error?"
Susu made her first error in step 2, when she factored out 4 she is supposed to divide 8x by 4.
Thus the correct expression for step 2 should be 4(x^2 - 2x) = 13
To complete the solution for the equation:
4(x^2 - 2x + 1) = 13 + 4(1)
4(x - 1)^2 = 13 + 4
4(x - 1)^2 = 17
(x - 1)^2 = 17/4
x - 1 = +/- sqrt(17/4)
x = 1 +/- sqrt(17) / 2</span>
Answer:
sentence 2
Step-by-step explanation: