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ale4655 [162]
3 years ago
15

Find the value of X.

Mathematics
1 answer:
nadezda [96]3 years ago
6 0
I believe X may be 34
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The lung capacity of the blue whale is 5100L. Convert this volume into gallons. Express your answer to two significant figures a
Vedmedyk [2.9K]
By definition, we have that the conversion of a US gallon to liters is given by:
 1 liter = 3.78541 gallons
 Therefore, we can apply the following rule of three:
 1 liter ---------------------> 3.78541 gallons
 5100 liters --------------> x
 Clearing x we have:
 x = (5100) * (3.78541)

x = 19305.591
 two significant figures:
 x = 19000

 Answer:
 
The lung capacity of the blue whale is:
 
x = 19000 gallons
8 0
3 years ago
Write 23 in scientific notation A. 23 x 101 B. 2.3 x 101 C. 2.3 x 102 D. 2.3 x 103
miskamm [114]
When using scientific notation, you only want one number to be in front of the decimal place. If you have to make the number smaller, then the 10^nth power will be positive. If you have to make the number bigger, then 10^nth power will be negative. Example:
0.54 --> 5.4 * 10^-1
35 --> 3.5 * 10^1
The value of n depends on how many spaces the decimal point needs to be moved. For your question, putting 23 in scientific notation would look like this:
23 --> 2.3 * 10^1
8 0
3 years ago
Read 2 more answers
What is the y-value of the vertex of the function f(x) = –(x – 3)(x + 11)?
Mrrafil [7]
Expand
f(x)=-1x^2-8x+33

x coordinate of vertex is -b/2a in the form ax^2+bx+c=y
a=-1
b=-8
-(-8)/2(-1)=8/-2=-4
plug back in to get y value

y=-(-4^2)-8(-4)+33
y=-16+32+33
y=49

y value is 49
5 0
3 years ago
4/7 of the children in a pool are girls. What is the ratio of girls to boys?
marshall27 [118]
4/7 of the children in the pool are girls 
3/7 of the children in the pool are boys
4/7:3/7
4:3 is the ratio of girls to boys
6 0
2 years ago
Help me out here plssss
Minchanka [31]

Answer:

Step-by-step explanation:

SV = RV

2x+2 = 10

x = 4

r² = RV² + VZ² = 10²+7.5² = 156.25

UZ = √[r²- (QR/2)²] = √[156.25 - 10²] = √56.25 = 7.5

5 0
2 years ago
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