The Robinson family goes to the library. There are 5 people in thefamily. Each person borrows 2 books. How many books does the
family borrow in all?
What is the unknown in this problem?
number of people in the family
number of books for each person
number of books in all
Answers
Answer:
10 books
Step-by-step explanation:
5 × 2 = 10
unknown in this problem is number of books in all
Related Questions
Can someone help me with this problem?
What is the correct classification of 23x + 16?
Which of ordered pairs is not a function ? 1.) (0,9) , (9,0) , (1,2) , (3,4) 2.) (0,1) , (-1,0) , (1,2) , (3,2) 3.) (2,3) , (3,4) , (4,5) , (5,6) 4.) (2,3) , (2,4) , ( 4,5) , (4,6)
What is x^2+8x-5 in vertex form? Please explain.
B. q = 13
C. q = 15
D. q = 11
Answers
Answers
2k(7-5k)+11=6k+3(k^2-1)
with work please.
Answers
⇒ (2k)* 7 - (2k)* (5k) +11= 6k+ 3* k^2- 3*1 (distributive property)
⇒ 14k -10k^2 +11= 6k+ 3k^2 -3
⇒ (14k -14k) +(-10k^2 +10k^2)+ (11-11) = (6k-14k)+ (3k^2+10k^2)+ (-3-11)
⇒ 13k^2- 8k- 14= 0
⇒ 13 (k^2- 8/13k- 14/13)=0
⇒ (k- ((4+3*sqrt(22))/13))* ((k- ((4-3*sqrt(22))/13))= 0
⇒ k= (4+3*sqrt(22))/13 or k= (4-3*sqrt(22))/13).
Hope this helps~
Answer:
k= (4+3*sqrt(22))/13 or k= (4-3*sqrt(22))/13).
Step-by-step explanation:
2k(7-5k)+11=6k+3(k^2-1)
We move all terms to the left:
2k(7-5k)+11-(6k+3(k^2-1))=0
We add all the numbers together, and all the variables
2k(-5k+7)-(6k+3(k^2-1))+11=0
We multiply parentheses
-10k^2+14k-(6k+3(k^2-1))+11=0
We calculate terms in parentheses: -(6k+3(k^2-1)), so:
6k+3(k^2-1)
We multiply parentheses
3k^2+6k-3
Back to the equation:
-(3k^2+6k-3)
We get rid of parentheses
-10k^2-3k^2+14k-6k+3+11=0
We add all the numbers together, and all the variables
-13k^2+8k+14=0
a = -13; b = 8; c = +14;
Δ = b2-4ac
Δ = 82-4·(-13)·14
Δ = 792
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
k1=−b−Δ√2ak2=−b+Δ√2a
The end solution:
Δ−−√=792−−−√=36∗22−−−−−−√=36−−√∗22−−√=622−−√
k1=−b−Δ√2a=−(8)−622√2∗−13=−8−622√−26
k2=−b+Δ√2a=−(8)+622√2∗−13=−8+622√−26
(x^3y^-2/xy)^-1/5
Answers
Answer:
The radical form of the expression is
Step-by-step explanation:
Given :
We have to simplify the given expression and write in radical form.
RADICAL FORM is the simplest form of expression that do not involve any negative exponent and power is less than n, where n is the nth root of that expression.
Consider the given expression
Cancel out the common factor x, we get,
Using laws of exponents, , we have,
Using laws of exponents, , we have,
Again using laws of exponents, , we have,
Also, written as
Thus, the radical form of the expression is
If you don’t know pls don’t answer thanks
Answers
Answer:
Step-by-step explanation:
.
B. 112
C. 64
D. 96
Answers
The area of the given trapezoid is 56 sq.units.
What is a trapezoid?
A quadrilateral with at least one pair of parallel sides is called a trapezoid.
Given that, the two bases of a trapezoid are 3 and 11 and the altitude is 8
Area of a trapezoid = (sum of the two bases) / 2 × height
= (3+11) / 2 × 8
= 14 / 2 × 8
= 7 × 8
= 56
Hence, the area of the given trapezoid is 56 sq.units.
For more references on trapezoid, click;
#SPJ2
a+b/2×h
3+11/2×8
14/2×8
7×8= 56 which is :A