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Harrizon [31]
3 years ago
15

use the value of the ratio to determine which ratio is equivalent to 7:15. Check all that apply! Question 4 options: 21:45 14:45

3:5 63:135
Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0

7:15=(7*3):(15*3)=21:45

7:15=(7*9):(15*9)=63:135

21:45 and 63:135

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yKpoI14uk [10]

A binomial squared is written like

x^2+2ax+a^2

So, we have 2a=6 \iff a=3

So, we want to complete the square (x+3)^2 = x^2+6x+9

We can add and subtract 9 to write

x^2+6x = x^2+6x+(9-9) = (x^2+6x+9)-9 = (x+3)^2-9

5 0
3 years ago
Solve the system of equations:<br> y = 2x - 3<br> y = x2 - 3
Tamiku [17]

Answer:

(0, -3), (2, 1)

Step-by-step explanation:

Solve this by solving for the first variable in one of the equations, then substitute the result into the other equation.

5 0
3 years ago
For the first 40 hours of work each week, Mr. Ericson earns
labwork [276]
C. because it’s middle and the teacher prob put the answer as c
5 0
2 years ago
HELP ASAP PLEASE!!!
sasho [114]
Y=x^3+5
y^-1=....
example >>a=x^3+5
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3√a-5=x
y^-1=3√x-5
3 0
3 years ago
Why is the answer E?
bearhunter [10]

Step-by-step explanation:

The only way the answer could be E is if the x² term under the radical is supposed to be t².

f(x) = ∫₄²ˣ √(t² − t) dt

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f'(x) = 2√(4x² − 2x)

f'(2) = 2√(4(2)² − 2(2))

f'(2) = 2√12

3 0
3 years ago
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