What operation should be performed first in the expression 8 - 2 + 5 x (16 + 66 didved by 2)
Answers
So (16+66/2) should be performed FIRST.
8 - 2 + 5 x ( 16 + 66 ÷ 2)
Do the ÷ in the bracket:
= 8 - 2 + 5 x ( 16 + 33)
Do the operation in the bracket:
= 8 - 2 + 5 x 49
Do multiplication:
= 8 - 2 + 245
Do subtraction:
= 6 + 245
Do addition:
= 251
-
Answer: 251
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(n - 5)(n - 4) = 0
(n - 5)(n + 4) = 0
(n + 5)(n - 4) = 0
(n + 5)(n + 4) = 0
Answers
Answer:
Factors are (n + 5)(n - 4) = 0.
Step-by-step explanation:
Given : The sum of the squares of 2 consecutive negative integers is 41. What are the numbers.
To find : Which of the following equations is the result of using the factoring method to solve the problem.
Solution : We have given statement
Let two consecutive number are : n and n +1 .
Square of two consecutive number are : n² and (n+1)².
According to question : sum of the squares of 2 consecutive negative integers is 41.
n² + (n+1)² = 41.
n² + n² + 1 +2n =41
2n² + 2n +1 =41
On subtracting 41 from both sides
2n² + 2n +1- 41 = 0
2n² + 2n - 40 = 0
On dividing by 2 to whole equation
n² + n - 20 = 0
On factoring
n² + 5n -4n - 20 = 0
Taking common n from first two terms and -4 from first two last terms
n (n +5) -4 (n +5) = 0
Grouping
(n -4) (n +5) = 0.
Therefore, Factors are (n + 5)(n - 4) = 0.
n^2 + (n+1)^2 = 41
n^2 + n^2 + 2n + 1 = 41
2n^2 + 2n -40 = 0
n^2 + n -20 = 0
(n + 5)(n- 4) = 0
Then the answer is the third option.
Answers
Answer:
I believe the answer is D
Step-by-step explanation:
I took the quiz on edge, the answer is D :)
Answer:
soo the table isnot here but look for the one that has the nnumbers going up if its a graph the / that is the way of te numbers but \ is going down soo aviod
if posible
Step-by-step explanation:
....
In the figure shown, line AB is parallel to line CD.
Part A: What is the measure of angle x? Show your work. (5 points)
Part B: Explain how you found the measure of angle x by identifying the angle relationships that you used along the transversal. (5 points)
AB and CD are parallel lines, and PQ and PR are transversals which intersect AB at P and CD at Q and R. Angle APQ is labeled as 65 degrees, angle QPR is equal to x, angle PRD is equal to 120 degrees.
Answers
Answer:
x = 55
Step-by-step explanation:
to find angle BPR you would do:
180 - 120 = 60
so BPR is 60°
now to find x you do this:
65 + 60 + x = 180
125 + x = 180
x = 55
Answer:
45 degrees
Step-by-step explanation:
pretty sure
Answers
Explanation:
Let b be the number of hours Brian travels. Annie travles 5 times the sum of Brian's hours and 2, or 5(b+2). Together they travel 20 hours:
5(b+2)+b=20.
Use the distributive property:
5*b+5*2+b=20
5b+10+b=20.
Combine like terms:
6b+10=20.
Subtract 10 from both sides:
6b+10-10=20-10
6b=10.
Divide both sides by 6:
6b/6=10/6
b=5/3=1 2/3.
Brian travels 1 2/3 hours. This means Annie travels
5(1 2/3+2)=5(3 2/3)=5(11/3)=55/3=18 1/3 hours.
Annie and Brian traveled 18.3 hours and 1.7 hours respectively
Further explanation
Simultaneous Linear Equations can be solved using one of the following methods :
- Elimination Method
- Substitution Method
- Graph Method
Let's try to solve the problem now.
Let :
Annie's number of hours = A
Brian's number of hours = B
If Annie traveled 5 times the sum of the number of hours brian traveled and 2 , then it could be written as :
→ Equation 1
If together they traveled 20 hours , then it could also be written as :
← Equation 1
Learn more
- Perimeter of Rectangle : brainly.com/question/12826246
- Elimination Method : brainly.com/question/11233927
- Sum of The Ages : brainly.com/question/11240586?
Answer details
Grade: High School
Subject: Mathematics
Chapter: Simultaneous Linear Equations
Keywords: Elimination , Substitution , Graph , Method , Linear , Equation , Simultaneous
Answers
The equation written in point-slope form would be:
y+2=1/4(x-9).
Answers
cake tin: 25 cm in diameter
convert mm to cm.
1 cm = 10 mm
600mm * 1cm/10mm = 60cm
500mm * 1cm/10mm = 50cm
Area of oven tray = 60cm * 50cm = 3,000 cm²
Area of cake tin = 3.14 * (25cm/2)² = 3.14 * (12.5cm)² = 3.14 * 156.25cm² = 490.625 cm²
3,000cm² ÷ 490.625cm² = 6.11 or 6 cake tins can fit on the oven tray at one time.