![tchase0616](/avatars/16056.jpg)
tchase0616
08.09.2019 •
Mathematics
)) is -68 – -9 positive or negative?
Solved
Show answers
More tips
- H Health and Medicine How to Get Pregnant Faster?...
- S Style and Beauty Lamination of Hair: How it Works and What it is?...
- C Computers and Internet Best Applications for Your iPad: Review of the Best Candidates for Installation...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- F Food and Cooking How to Properly Cook Buckwheat?...
Answers on questions: Mathematics
- M Mathematics manny has an investment account which compounds interest continuously at a rate of 3.1%. He puts $7500 into the account initially. after 2 years how much money does he have in...
- M Mathematics 9 obreros pueden terminar una obra en 6 días. Al cabo de 2 días, se integra un grupo de obreros de tal manera que la obra la entregan con un día de anticipación. ¿Cuántos obreros...
- M Mathematics In your basketball game you only made 2-point and 3-point shots. You made a total of 10 shots and scored a total of 22 points. Write and solve a system of linear equations to determine...
- M Mathematics ∛512 has the same value as which of the following?...
- M Mathematics 4) Which speed is the fastest? A. 4 miles in 1/3 hour B. 1/3 mile in 4 hours C. 1/2 miles in 3 hours D. 6 miles in 2/3 hour Please show all work done to get your answer. URGENT...
- B Biology Which statement is true of arteries? a. they prevent blood from flowing backwards b. they carry oxygen-poor blood toward the heart c. they become smaller as they move away from...
Ответ:
-68 - -9
= -68 + 9 (two minus signs equals one plus sign)
= -59
Therefore, it is negative. Hope that helped!
Ответ:
Let d be the distance from the diagonals' intersection and the larger side, so the distance from this point to the smaller side is d + 4 cm. Then d is half of the rectangle's shorter side (call it x), and d + 4 cm is half of the longer side (call it y).
The perimeter of the rectangle is 56 cm, which means
2x + 2y = 56 cm
or
x + y = 28 cm
In terms of d, this becomes
2d + 2 (d + 4 cm) = 28 cm
Solve for d :
2d + 2d + 8 cm = 28 cm
4d = 20 cm
d = 5 cm
Then the sides of the rectangle have length
x = 2d = 10 cm
y = 2 (d + 4 cm) = 2 (13 cm) = 26 cm