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Misha Larkins [42]
3 years ago
15

What is the value of x, when x2 + 5 = 21? A) 2 or -2 B) 4 or -4 C) 5.5 or -5.5 D) 8 or -8

Mathematics
2 answers:
lord [1]3 years ago
4 0
X would be equal to 8.
notka56 [123]3 years ago
4 0

Answer:

I'm positive that the

answer is B 8

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Jeremy is taking a photography class, but he doesn't own a camera. The class organizers will rent him a camera for $6 per day. J
Mazyrski [523]
Solving the given inequality for d, we get...

6d + 15 < 50
6d + 15-15 < 50-15 <<-- subtract 15 from both sides
6d < 35
6d/6 < 35/6 <<--- divide both sides by 6
d < 5.83

Which means that d can be any of the values in this set: {0, 1, 2, 3, 4, 5}

The smallest d can be is 0. In this scenario, Jeremy pays the $15 registration but doesn't rent the camera at all
The largest d can be is 5. In this scenario, Jeremy rents the camera for 5 days
Any larger value of d is not allowed as it would make the total cost go over $50
Notice how I'm rounding down regardless how close 5.83 is to 6

8 0
3 years ago
Read 2 more answers
What is the solution to the system of equations? (You can either do the substitution or elimination method) x - 2y = 19 x + 3y =
masha68 [24]

Answer:

D. (17,-1)

Step-by-step explanation:

We'll start by canceling out x. To do so, multiple the first equation by -1

-1( x - 2y)=( 19 )(-1)

This gives us:

-x +2y = -19

x + 3y = 14

Add the equations together:

→ 5y = -15

→ y = -1

Plug in y = -1 into an equation:

→ x + 3(-1) = 14

→ x - 3 = 14

→ x = 17

(17,-1)

Hope this helps!

4 0
2 years ago
1. Five more than three times a number is sixty- five.
nalin [4]
First equation
a. 3x+5=65
b.3x=60     x=20



7 0
3 years ago
Robert made a large pancake that weighed 3/4 pound. He ate 7/16 pound of pancake. What fraction of the whole pancake did he eat?
olga_2 [115]

Answer:

7/4

Step-by-step explanation:

the question already mentioned that he ate 7/4 pound of the pancake

5 0
3 years ago
A round pen is 50ft in diameter, what is the circumference of the round pen?
gizmo_the_mogwai [7]
The answer would be 157.07, with a radius of 25 


3 0
3 years ago
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