3 years ago

11 Seven less than a number is 15 You can help me.

Mathematics

1 answer:

Goshia [24]3 years ago

5 0

Answer:

x - 11 = 15

Step-by-step explanation:

x is rpthe unknown number

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The set of rational numbers contains the set of natural numbers.<br><br> True or false

RUDIKE [14]

Answer:

True

Step-by-step explanation:

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3 years ago

Can you help me find the answer quick

Nimfa-mama [501]

Answer:

14x+30y-20

Step-by-step explanation:

14(x+y)=14x+14y

14y+y=15y+15y=30y

and there is no like terms for -20 and 14x so the answer is

14x+30y-20

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3 years ago

Read 2 more answers

The function (f) is given by <img src="https://tex.z-dn.net/?f=f%28x%29%3De%5E%28x-11%29%20-8" id="TexFormula1" title="f(x)=e^(x

Vitek1552 [10]

$f(x)=e^{x-11}-8\to y=e^{x-11}-8\ \ \ \ |add\ 8\ to\ both\ sides\\\\e^{x-11}=y+8\\\\\ln e^{x-11}=\ln(y+8)\iff x-11=\ln(y+8)\ \ \ \ |add\ 11\ to\ both\ sides\\\\x=\ln(y+8)+11\\\\a)\ \boxed{f^{-1}(x)=\ln(x+8)+11}\\\\b)\ The\ domain\ of\ f^{-1}(x):\\\\x+8 > 0\to \boxed{x > -8\to x\in(-8;\ \infty)}$

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3 years ago

A square piece of fabric has an area of 16x^2+40x+25 square inches. The length of each side of the fabric is cx+d, where c and d

lozanna [386]

$A=(cx+d)^2=c^2x^2+2cdx+d^2\\\\c^2x^2+2xcd+d^2=16x^2+40x+25\\\Downarrow\\c^2=16;\ 2cd=40;\ d^2=25\\\Downarrow\\c=\sqrt{16};\ cd=20;\ d=\sqrt{25}\\\Downarrow\\\boxed{c=4\ and\ d=5}\\\\The\ length\ of\ side:cx+d=\boxed{4x+5}\\\\The\ perimeter\ of\ the\ piece\ of\ fabric:4(4x+5)=\boxed{16x+20}\\\\For\ x=2:\\16\cdot2+20=32+20=\boxed{52}$

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3 years ago

Which of the following expressions represents a function?

PSYCHO15rus [73]

A function can have one x-value for each y-value Or even, two difference x-values for one y-value.

And out of the four options, only A and C represent a function. The other two options have the same x value for two y-values.

One way to test if it is a function is by the vertical line test.

7 0

3 years ago

11 Seven less than a number is 15 You can help me.​

11 Seven less than a number is 15 You can help me.