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aev [14]
3 years ago
12

I need some help with this. If you could help me, that would be great.

Mathematics
1 answer:
Vesnalui [34]3 years ago
8 0

Answer:

 .31 g / mL

Step-by-step explanation:

Density = mass / volume

Sample 3

mass = 7 1/4 = 7.25

Volume 23.1

Density = 7.25/ 23.1 = .313852814

To the nearest hundredth

  .31 g / mL

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Need help with this math question please
lesya692 [45]

Answer:

See below for answer.

Step-by-step explanation:

RP/RT =RQ/RS                  Given

∠R = ∠R

ΔPQR similar to Δ TSR      If the measures of two sides of a triangle are proportional to the measures of two corresponding sides of another triangle and their included angles are congruent, then the triangles are similar.

3 0
3 years ago
What is the equation of the quadratic graph with a focus of (−4, seventeen eighths ) and a directrix of y = fifteen eighths
Lunna [17]
Standard form for a parabola:
( x - h )² = 4 p ( y - k )
Vertex: ( h, k ) = ( -4, 2 )
Displacement from vertex to focus:
p = 2/8 = 1/4
( x + 4 )² = 4 · 1/4 ( y - 2 )
y = ( x + 4 )² + 2
or general form: 
x² + 8 x - y + 18 = 0 
5 0
3 years ago
Simplify the expression and choose the appropriate result.<br> 3 (2+39)
dusya [7]

Answer:

setup below, you'll have to do the final calculation

Step-by-step explanation:

first perform the operation in parenthesis

2+39= 41

then do the multiplication 3 x 41

in general do calculations in this order

1. Parenthesis

2. Multiplication

3. Division

4. Addition

5. Subtraction

working from left to right

6 0
3 years ago
101/25 converted to a mixed number
mamaluj [8]
Hi 
Let me help you out 

101/25 is a in proper fraction. 
To change the in proper fraction to a proper fraction you have to see which number is close to 101 by multiplying numbers to 25. You can also divide 101 by 25 which is 4 remainder 1. 
25*4=100
100 is close to 101

the answer would be 4&<span>1/25</span> 

if you like my answer and think it is helpful then please mark mine as brainliest 
answer thank you 

3 0
3 years ago
The average of five numbers is 790.6. If the first four numbers are 80.2, 91.6,123,and 204.7,what is the sum of the five numbers
aleksklad [387]

Answer:

291 .1

Step-by-step explanation:

80.2 + 91.6 + 123 + 204.7 + x = 790.6

790.6 - 499.5 = 291. 1

8 0
2 years ago
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