3 years ago

Evaluate the expression when y=-7. y? +4y-1

Mathematics

1 answer:

Delicious77 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

y^2+4y-1=(-7)^2+4(-7)-1=(-7)(-7)-28-1=49-28-1=21-1=20

You might be interested in

The ponce de leon lighthouse in St.Augustine, Florida, is the second tallest brick tower in the United States.It was built in 18

vovikov84 [41]

Using a right triangle formed by boat with base and top of lighthouse.Note: 15 minutes = 0.25 degreesLet d be distance the boat is from shore.tan(90−13.25)=d/175
d=175∗tan(76.75)=743.2

6 0

3 years ago

Read 2 more answers

The width of a rectangle is fifteen feet less than its length. If the area of the rectangle is 54 square feet, find the width.

PolarNik [594]

Answer:

3 ft

Step-by-step explanation:

It is because 3 times 18 is 54 and 3 is 15 less than 18

4 0

3 years ago

Find the area of the trapezoid. A. 675 ft2 B. 337.5 ft2 C. 187.5 ft2 D. 150 ft2

Grace [21]

I think ur answer will be b

5 0

3 years ago

Read 2 more answers

a sign in front of a roller coaster say '' you must be 40 inches tall to ride" what percentage of 54 inches of this is?

cupoosta [38]

The 54 percentage of 40 inches is 21.6 inches

5 0

2 years ago

(4m-1)(m+2) Find Products<br> (With Work Please!)

katrin2010 [14]

Answer:

3m times 2m = 1m

Step-by-step explanation:

because 4m- 1 =3m and m+2 =2m

5 0

2 years ago