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3 years ago

Given f(x)=-5x-4solve for when f(x)=1

Mathematics

2 answers:

olganol [36]3 years ago

4 0

Answer:

Step-by-step explanation:

f(x)=5x-4 f(x)=1

1=5x-4

1+4=5x

5=5x

x=1

Zina [86]3 years ago

4 0

Answer:

f(x)=-9

Step-by-step explanation:

f(x)=-5x-4 solve for when f(x)=1

substitute x with 1

f(x)=-5-4

f(x)=-9

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Simplify 4a^3 b^2 x 6a^6b^9

Ket [755]

Answer:

24a^9 b^11

Step-by-step explanation:

$4a ^{3} b ^{2} \times 6a ^{6} b ^{9} \\ = (4 \times 6)a ^{3 + 6}b ^{2 + 9} \\ = 24a^{9} b^{11}$

5 0

3 years ago

John sells plain cakes for $8 and decorated cakes for $12. On a particular day, John started with a total of 100 cakes, and sold

qaws [65]

x+ y = 96 → y = 96 - x (1)

And the price per plain cake * the number he sold + price of the decorated cake * the number he sold = total sales

8x + 12y = 800 (2)

Subbing (1) into (2), we have that

8x + 12 (96 - x) = 800 simplify

8x + 1152 - 12x = 800

-4x + 1152 = 800 subtract 1152 from both sides

-4x = -352 divide both sides by -4

x = 88 = the number of plain cakes he sold

And 96 - x = 96 - 88 = 8 = the number of decorated cakes he sold

6 0

4 years ago

Read 2 more answers

The coordinates of the vertices of A DEF are D(-4,1), E(3. – 1), and F(-1, – 4)

liq [111]

Answer:

ΔDEF is not a right triangle because no two sides are perpendicular.

Step-by-step explanation:

The coordinates of the vertices of ΔDEF are given to be D(-4,1), E(3,-1) and F(-1,-4).

Now length of DE is given by $\sqrt{(-4-3)^{2}+(1-(-1))^{2} } =\sqrt{53}$ units

length of EF is given by $\sqrt{(3-(-1))^{2}+(-1-(-4))^{2} }=\sqrt{25}$ units

and length of FD is given by $\sqrt{(-4-(-1))^{2}+(1-(-4))^{2} } =\sqrt{34}$ units.

Therefore, 53 ≠ 25+34

Hence, the length of the sides does not support the Pythagoras theorem.

So, ΔDEF is not a right triangle because no two sides are perpendicular. (Answer)

7 0

3 years ago

-3x > 9 PLS HELPPPPPPPPPPPPPPPPPPPPP:'''(

Lilit [14]

Answer:

what do you want us to do

Step-by-step explanation:

5 0

3 years ago

Find the value of x.

barxatty [35]

Answer:

it will be very simple,when you understand the theory clerely, good luck!

7 0

3 years ago