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N76 [4]
3 years ago
14

Please I need help in all of these!

Mathematics
2 answers:
blondinia [14]3 years ago
6 0
For 15 I think it’s B
s344n2d4d5 [400]3 years ago
4 0
I also think it is B for number 15
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Jason gets very nervous giving speeches in front of big crowds how can he combat his nervousness
gregori [183]

Answer: Jason can imagine everyone naked while on the stage, it will make him smile, and feel free.

Step-by-step explanation: I'ts pretty easy actually.

3 0
2 years ago
A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measure SL 42,000 ft
horsena [70]

Answer:

a= 200

b = 210

Step-by-step explanation:

My assumption is, we have to find the length of sides of rectangle

Given

perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)

area = a*b = 42,000 ft^2 (ii)

from eq (1)

2a + 2b = 820

=> 2(a+b) = 820

=> a+b = 820/2

=> a + b = 410

=> a = 410-b   (iii)

putting the value of a in eq(ii), we get

(410-b) *b = 42,000

410b - b^2 = 42,000

0 = b^2 - 410b + 42000

b^2 - 410b + 42000 = 0

b^2- 200b- 210b + 42000 = 0

b(b-200)-210(b-200) = 0

(b-200)(b-210) = 0

or

b= 210 and b = 200

if b is larger side than b =210

By putting value of b in eq(iii),

a = 410 -210 = 200

 

6 0
3 years ago
The Discriminant of a quadratic equationis is -6 .What types of solutions does the equation have ?
Ludmilka [50]
I’m pretty sure the answer is C
8 0
3 years ago
Read 2 more answers
The circle at the right represents a planet. The radius of the planet is about 6300 km. Find the distance d to the horizon that
faust18 [17]

Answer:

224.54 km

Step-by-step explanation:

A right triangle is formed, where h + r = 4 + 6300 = 6304 km is the hypotenuse, r = 6300 km is one leg and d is the other leg. By Pythagorean theorem:

6304² = 6300² + d²

d² = 6304² - 6300²

d = √50416

d = 224.54 km

3 0
2 years ago
Maribel thinks the tens digit goes up by 1 in these numbers. Do you agree?
podryga [215]
................. .................
7 0
3 years ago
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