All categories

3 years ago

Write an equation for the description. The difference between a number x and 15 is 19

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

8 0

Answer:

40-x-15= 19

x will equal 6

Step-by-step explanation:

You might be interested in

Answer this for 35 points, brainliest, a heart and more

coldgirl [10]

Answer:

7. multiply 2

8. multiply 5 (i think)

9. y=12/ x=4

x/y=3

10. $100

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

(x2–5x+6)(x-1) dx<br>Sol<br>x-2

Musya8 [376]

Step-by-step explanation:

$y =( {x}^{2} - 5x + 6)(x - 1) \\ y =( {x}^{3} - 5 {x}^{2} + 6x - {x}^{2} + 5x - 6) \\ \frac{dy}{dx} = 3 {x}^{2} - 12x + 11$

7 0

3 years ago

HELPPPPPOOPPPLLLL pleaseee begging

svp [43]

Answers:

surface area : (41.2x2) + (4x9x6) = 298.4 cm 2

volume: 41.2 x 9 = 370.8 cm 3

Step-by-step explanation:

3 0

3 years ago

Two vertical poles of heights 60 ft and 80 ft stand on level ground, with their bases 100 ft apart. A cable that is stretched fr

Andreyy89

Answer:

Step-by-step explanation:

Given

height of two Poles are 60 and 80 ft

Distance between them is 100 ft

Let x be the distance of Pole of ht 80 ft from Point of stretch

thus length of rope is given by

$L=L_1+L_2$

$L_1=\sqrt{80^2+x^2}$

$L_2=\sqrt{60^2+(100-x)^2}$

$L=\sqrt{80^2+x^2}+\sqrt{60^2+(100-x)^2}$

differentiate w.r.t x we get

$\frac{\mathrm{d} L}{\mathrm{d} x}=\frac{2x}{2\sqrt{80^2+x^2}}-\frac{2\left ( 100-x\right )}{\sqrt{60^2+\left ( 100-2x\right )^2}}$

Put $\frac{\mathrm{d} L}{\mathrm{d} x}=0$ to get minimum value

$\frac{2x}{2\sqrt{80^2+x^2}}=\frac{2\left ( 100-x\right )}{\sqrt{60^2+\left ( 100-2x\right )^2}}$

squaring

$x^2\left ( (100-x)^2+60^2\right )=(100-x)^2(80^2+x^2)$

Rearranging

$28x^2-1800x+640000=0$

$x=\frac{400}{7}$

thus $L_1=98.312 ft$

$L_2=73.73 ft$

$L=172.04 ft$

7 0

3 years ago

Need the answer on this

denpristay [2]

None of the answers are correct because it’s definitely not “Given” because x=20 is like an answer. It’s also not “Distributive Property”, “subtraction Property”, and or “Additional Property” b/c there’s nothing that can be distributed, subtract or add. It’s just an answer.

3 0

3 years ago

Read 2 more answers