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3 years ago

The product of five and a number plus 10 is at least thirty.

Mathematics

1 answer:

Vlad [161]3 years ago

3 0

5+10+x is greater than or equal to 30 ( use the greater of equal to sign)

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A photograph has a length that is 4 inches longer than its width, x. Its area is given by the expression x(x + 4). If the area o

xxTIMURxx [149]

Answer:

The length is 12 inches and the width is 8 inches.

Step-by-step explanation:

6 0

3 years ago

I need help finding 'x'

WITCHER [35]

(8x-10)°+(6x)°+(10x+10)°=360°
8x-10+6x+10x+10=360
8x+6x+10x-10+10=360
24x-10+10=360
24x=360
24x/24=360/24
x=15
Scalene because all three sides are different.

8 0

3 years ago

X<br>81** *34*=246<br><img src="https://tex.z-dn.net/?f=81x%20%2B%201%20%2B%203%7B4x%20%7D%20%3D%20246" id="TexFormula1" title="

anzhelika [568]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

$81^{x+1}+3^{4x}=246$

$81=3^4$

Rewrite equation: $3^{4\left(x+1\right)}+3^{4x}=246$

$3^{4\left(x+1\right)}=3^{4x}\times 3^4$

$3^{4x}\times 3^4+3^{4x}=246$

Factor out $3^{4x}$ :

$3^{4x}\left(3^4+1\right)=246$

Divide both sides by $(3^4+1)$ :

$\frac{3^{4x}\left(3^4+1\right)}{3^4+1}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{82}$

$3^{4x}=3$

Anything to the power of 1 is itself. Hence,

$4x=1\\$

$x=\frac{1}{4}$

3 0

3 years ago

NEED HELP ASAP

Aliun [14]

Well, first you want to figure out how many sentences Jolie has left to read. You can do that by multiplying 120 by 17 which equals 2,040. Then you have to divide 2,040 by 14. The answer to that is about 145.72 which you could just leave at about 145 minutes. And to simplify that even more you could divide by 60 and figure that 145.72 is about 2 hours and 42 minutes.

3 0

3 years ago

Show all work and provide necessary descriptions

masya89 [10]

Let

$P=(P_x,P_y),\quad Q=(Q_x,Q_y)$