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dangina [55]
2 years ago
9

(4xt7) (2x+5) find x

Mathematics
2 answers:
Anvisha [2.4K]2 years ago
6 0

Answer:

8x^2+34x+35

Step-by-step explanation:

My head knows

UkoKoshka [18]2 years ago
3 0

Step-by-step explanation:

(4x+7)(2x+5)

We would have to multiply each term in the first bracket by the term in the second bracket.

4x(2x+5)+7(2x+5)

So now we multiply 4x by 2x and 5

8x+10x

8x+10x+7(2x+5)

And then we multiply 7 by the 2x and the 5

14x+35

8x+10x+14x+35

So now we proceed to add since like terms have already been combined

18x+14x+35

32x+35

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What is the equation when y=5x+4 is reflected over the x-axis, y-axis & y=x?
tigry1 [53]

Answer:

A) y=-5x-4

B) y=-5x+4

C) y=\frac{x-4}{5}

Step-by-step explanation:

So we have the equation:

y=5x+4

Let's write this in function notation. Thus:

y=f(x)=5x+4

A)

To flip a function over the x-axis, multiply the function by -1. Thus:

f(x)=5x+4\\-(f(x))=-(5x+4)

Simplify:

-f(x)=-5x-4

B) To flip a function over the y-axis, change the variable x to -x. Thus:

f(x)=5x+4\\f(-x)=5(-x)+4

Simplify:

f(-x)=-5x+4

C) A reflection over the line y=x is synonymous with finding the inverse of the function.

To find the inverse, switch x and f(x) and solve for f(x):

f(x)=5x+4

Switch:

x=5f^{-1}(x)+4

Subtract 4 from both sides:

x-4=5f^{-1}(x)

Divide both sides by 5:

f^{-1}(x)=\frac{x-4}{5}

And we're done :)

7 0
3 years ago
Write the the right answer and how you got to the answer. BEST ANSWER GETS BRAINLIEST
Gala2k [10]
I split it into parts. The small rectangle sticking out is 2x3 which is a 6 and the big rectangle 4x8 which is 32. The triangle is 8x2/2 which is 8. 6+32+8 = 46
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PLZ HELP ME W THIS !!! MARKIN BRAINIEST !!!
satela [25.4K]

Answer:

A

Step-by-step explanation:

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3 years ago
The Tennessee Titans scored 22 points in week 5 and 35 points in week 6. Find the percent of increase.
Shalnov [3]

Answer:

59.09%

Step-by-step explanation:

35-22=13

13/2= .59090909=59.09%

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2 years ago
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Elenna [48]

Answer:

11 is the answer

Step-by-step explanation: i hope so cuz my calculations gives this answer

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