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Svetach [21]
3 years ago
6

PLZ HELP ME I NEED HELP

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0

Answer:

Q: 160 R: 504 S: 480 T: 130 other answer: C

Step-by-step explanation:

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Someone please help a) Solve the problem correctly by completing the square.
Firlakuza [10]

Answer:

Step-by-step explanation:

x^2-4/7x-12/49=0

x= 6/7 and -2/7

4 0
2 years ago
Read 2 more answers
The mass of the part of a metal rod that lies between its left end and a point x meters to the right is 4x2 kg. (See this exampl
Ganezh [65]

Answer:

A) 32 kg/m

B) 48 kg/m

C) 72 kg/m

Step-by-step explanation:

We are given mass is; m = 4x²

Linear density is the derivative of mass with respect to the position x. So linear density is;

ρ = dm/dx

Differentiating 4x²,we have; ρ = 8x

A)at x = 4; ρ = 8(4) = 32 kg/m

B) at x = 6; ρ = 8(6) = 48 kg/m

C) at x = 9; ρ = 8(9) = 72 kg/m

5 0
2 years ago
How do I write an equation with two points on the same line? (15,17) and (20,24) are on the same line. Write the equation of the
Reil [10]

Step-by-step explanation:

First, find the slope between the points.

m = (y₂ − y₁) / (x₂ − x₁)

m = (24 − 17) / (20 − 15)

m = 7/5

Next, write the equation in point-slope form, using either of the points.

y − 17 = 7/5 (x − 15)

If desired, simplify.

y − 17 = 7/5 x − 21

y = 7/5 x − 4

5 0
3 years ago
Hazal is paid $48 for 6hours work. how much is she paid for 4hours work?<br>​
Marta_Voda [28]

Answer:

she get paid for 192 dollars for 4 hours

8 0
2 years ago
Can y’all help me with the 1st and 2nd one plz
kherson [118]

1. -1/5>-3/5 because we have like denominators we compare the inputs by the numerators.

2. 3/4 > 5/8 the least common denominator is: 8

Rewriting as equivalent fractions with the LCD:

                                   3/4 = 6/8    5/8 = 5/8

Comparing the numerators of the equivalent fractions we have:

                                   6/8 > 5/8  

4 0
3 years ago
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