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Sonbull [250]
3 years ago
13

Really need help with these maths questions.

Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:

121

Step-by-step explanation:

it is what it is

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A cake has two layers. Each layer
Fed [463]

Answer:

Volume of slice is  40 in³

Volume of the remaining cake is 197.014 in³

Step-by-step explanation:

hope this helps!!

brainliest please?

7 0
2 years ago
PLEASE HELP ME I WILL MAKE YOU BRAINILIST
Luda [366]

Answer:

It's false because it's actually about 75%.

Step-by-step explanation:

From 15-45 is 3/4 of the plot

4 0
3 years ago
Evaluate the expression for y=17<br> y+15=
sweet-ann [11.9K]

Answer:  32

Step-by-step explanation:

y = 17  

and you are give the expression y + 15  

so substitute the value of y into the expression and add them

17 + 15 = 32

6 0
2 years ago
What are the solutions of the equation x^4 + 95x^2 - 500= 0? Use factoring to solve
Artist 52 [7]
1) given x^4 + 95x^2 - 500

2) split in two factors with common factor term x^2: (x^2 + )(x^2 - )

3) find two numbers that add up 95 and their product is - 500:

=> 100*(-5) = - 500 and 100 - 5 = 95

=> (x^2 + 100)(x^2 - 5)

4) factor x^2 - 5 = (x + √5) (x - √5)

5) write the prime factors: (x^2 + 100) (x + √5) (x -√5)

6) find the solutions:

x^2 + 100 = 0 => not possible

x + √5 = 0 => x = - √5

x - √5 = 0 => x = √5


Answer: x = √5 and x = - √5
4 0
3 years ago
In 2000, U.S. Airways burned about 115 litres of fuel per passenger. In 2014 that dropped
ankoles [38]

Answer:

22% reduction

Step-by-step explanation:

Find the percent decrease by dividing the difference in amounts by the original amount.

Find the difference:

115 - 90 = 25

Divide this by the original amount:

25/115

= 0.217

So, the percent decrease is 21.7%. Round this to the nearest whole percentage:

= 22

The percent reduction in fuel used was approx. 22%

6 0
3 years ago
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