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Ket [755]
3 years ago
12

The isosceles triangle has a perimeter of 7.5 m. Which equation can be used to find the value of x if the shortest side, y, meas

ures 2.1 m?
Mathematics
1 answer:
goldenfox [79]3 years ago
3 0

2x = 7.5 - 2.1

x = (7.5 - 2.1) / 2

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Jenna can buy 5 golf balls at Golf Central for $9.20 or 4 golf balls at Strictly Golf for $7.60. Jenna wants to buy 20 golf ball
Sophie [7]

Answer:

$1.20

Step-by-step explanation:

9.20 x 4 = 36.8

7.60 x 5 = 38

38 - 36.8 = 1.20

8 0
2 years ago
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If you write out the numbers from 1 through 40 (including 1 and 40), how many numbers have a "5" in them?
GaryK [48]

Answer:

4

Step-by-step explanation:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40

6 0
3 years ago
To wash a window that is 12 feet off the ground, Wayne leans a 13-foot ladder against the
AlladinOne [14]

Answer:

5 meters

Step-by-step explanation:

Based on the situation, it forms into a right triangle. So we will apply the Pythagorean Theorem here. The ladder acts as the hypotenuse while the height from the ground to the window serves as our side "a". We are tasked to solve for "b". Side "b" is the distance from foot of side a to the tip of side c which is the hypotenuse (ladder). We will derive the formula below to solve for b.

c = √( a² + b² )

c² = a² + b²

b² = c² - a²

b = √ ( c² - a² )

b = √ ( 13² - 12² )

b = 5 meters

Correct me if I'm wrong. I hope it helps.

3 0
3 years ago
If f(x) = 3x2 - 2x + 1, then find f(0)
MissTica

f (0) = 3.(0)(0) - 3.(0)

      = 0

3 0
3 years ago
How do you solve: -16(2r-7)=4(5-3r) Thank you for answering!
kari74 [83]

Exact Form - 23/5

Decimal Form - 4.6

Hope This Help's

3 0
3 years ago
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