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4 years ago

The area of the triangle.

Mathematics

1 answer:

valentinak56 [21]4 years ago

7 0

21 Times 6 divided by 2
63

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If you're going 80 miles per hours how long will it take you to go 80 miles answer

mr Goodwill [35]

80 miles per hour means it takes one hour to travel 80 miles. If it said 65 MPH (miles per hour), it would take one hour to travel 65 miles.

ANSWER: 1 hour

Hope this helps! :)

5 0

3 years ago

Please help, it’s urgent !!!

Rama09 [41]

for more explanation please don't hesitate to just respond

8 0

3 years ago

Factor (z-5) (z+4)=52

stich3 [128]

Answer:

$\large\boxed{(z-9)(z+8)=0\to z=9,\ z=-8}$

Step-by-step explanation:

$(z-5)(z+4)=52\qquad\text{use FOIL}:\ (a+b)(c+d)=ac+ad+bc+bd\\\\(z)(z)+(z)(4)+(-5)(z)+(-5)(4)=52\\\\z^2+4z-5z-20=52\qquad\text{subtract 52 from both sides}\\\\z^2-z-72=0\\\\z^2-9z+8z-72=0\\\\z(z-9)+8(z-9)=0\\\\(z-9)(z+8)=0\iff z-9=0\ \vee\ z+8=0\\\\z=9\ \vee\ z=-8$

4 0

4 years ago

For a science project 30 students are divided into a group of six each group needs a piece of string that is 2 1/2 feet long mr.

Anuta_ua [19.1K]

Answer:

66 inches

Step-by-step explanation:

1. Yards to Feet:

1 yard= 3 feet

(6 yards)(3)= 18

6 yards = 18 feet

2. Number of Groups:

30 students/6 students per group= 5 groups

3. Total String Needed:

(5 groups)x(2.5 feet string)= 12.5 feet total string

4. Remaining String:

18 feet-12.5 feet= 5.5 feet

5. Feet to Inches:

1 foot= 12 inches

(5.5 feet)(12)= 66 inches

66 inches of string will remain

3 0

3 years ago

Not sure I understand 23-26. Can someone explain?

Marina86 [1]

Answer:

I'm pretty sure you substitute G into the expression.

Step-by-step explanation:

23. Given equation: g-(-7)

G=121

121-(-7)= 128

Hope this helped!

8 0

3 years ago