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prisoha [69]
3 years ago
7

Please answer ASAP i need help please explain.

Mathematics
1 answer:
Phoenix [80]3 years ago
4 0

Answer:

no

Step-by-step explanation:

3/4-2/3=9/12-8/12=1/12

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A total of 1482 earthquakes occurred in a 7-day period at the end of April
topjm [15]

Answer:

211.7 Per Day 8.8 Per Hour

Step-by-step explanation:

First you do 1482/7 which gives you an average for each day (211.7)

Then you take 211.7  and divide that by 24 because there are 24 hours in a day and doing so would give you 8.8

6 0
3 years ago
How many ways can you make change for .55 cents using only nickels, dimes and quarters
lora16 [44]

Answer:

A few ways are:

2 quarters and a nickel

5 dimes and a nickel

1 quarter and 3 dimes

11 nickels


6 0
3 years ago
Write and solve a quadratic equation for the situation below. Choose the answer that has both an equation that correctly models
Sedbober [7]
The answer 
<span>the true answer  is A) 4x^2+52x+165=320; x = 2.5 
proof:
since </span><span>they want to limit its area to 320 in^2
x must be equal 2.5, because </span>4.(2.5)^2+52(2.5)+165= 25+130+165=320;

the main rule of the area of a triangle is 

A= (base x height )/2
let be b the base and h the height 
so h=20- 6b
so 50= b x( 20-6b) /2, implies 100/b = 20 - 6b
if b=x, we have 100= 20x -6x² this  is equivalent to 6x² - 20x = -100
so the answer is 
<span>D) None of the choices are correct.
</span>
<span>the largest dimensions that can be used for the fountain are
</span>
<span>B) x^2+8x+16=800

C) x^2+16=800
</span>
proof
x^2+8x+16=x^2+8x+4², 4² is the area of the square fountain, and x^2+8x should be the remaining of the area, t<span>he total space that the fountain and sidewalk can use is 800, it is  less than 800 ft^2.
</span>Use the same method for. x^2+16=800

8 0
3 years ago
Find the length of side x to the nearest tenth.<br> х<br> 600<br> 30°<br> 17
yulyashka [42]

Answer:

5.3

Step-by-step explanation:

Stare at the triangle for a bit. And try to add another one sharing the unmarked angle. You end up with an equilateral triangle. It means \sqrt7 is half the hypotenuse, At this point,

8 0
2 years ago
for points A, B, and C, AB = 2, BC = 3, and AC = 4. Select one: a. A, B, and C are noncollinear. b. A, B, and C form a right tri
victus00 [196]
Short Answer: A
Remark
C
Let's start with the false choices.
If they were colinear, then if AB + BC would = 5 or 1 depending on the location of C.   Answer C is not correct.

B
a b and c do not form a right triangle. a^2 + b^2 ≠ c^2
2^2 + 3^2 = 13 not 16 (which is what c^2 or 4^2 = )

D 
D is false. Equilateral triangles have 3 equal sides. 

A is true. Since A and C are opposites and you have eliminated C by arguing A. Then A must be the  answer.
3 0
3 years ago
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