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2 years ago

~Please only answer if you know for sure~

Mathematics

1 answer:

labwork [276]2 years ago

6 0

$\frac{3}4$ of $540$ is $\frac{3\cdot540}4=405$ miles. Those will hence be traveled in $\frac{405}{45}=\boxed{9\text{ hours}}$

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at the souvenir shop each stuffed elephant was on sale for $5 off Matrix bought three of them for $45 how much did each stuffed

kondor19780726 [428]

Hello there!
So the equation I would use for this word problem is 3(s+5)=45.
3s+15=45
-15 -15
__________
3s=30
Divide 3 from both sides.
s ends up equaling 1.
Each stuffed animal elephant cost $10

4 0

2 years ago

Read 2 more answers

Write 6:15 in ratio form

Rufina [12.5K]

6:15 is in ratio form..... If you mean fraction form, a ratio is equivalent to a fraction, so the answer is 6/15

7 0

2 years ago

A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33 s

cestrela7 [59]

The answer is B)0.4 because four of the ten stores that were surveyed were compliant so the proportion of the entire population of stores that would be compliant is 410 or 0.4

3 0

2 years ago

Please show me how to solve the initial value problem y'=tanx y(pi/4)=3

AlexFokin [52]

The ODE is separable, i.e. you can write

$\dfrac{\mathrm dy}{\mathrm dx}=\tan x\iff\mathrm dy=\tan x\,\mathrm dx$

Integrating both sides gives the general solution.

$\displaystyle\int\mathrm dy=\int\tan x\,\mathrm dx$
$y=-\ln|\cos x|+C$

Given that $y\left(\dfrac\pi4\right)=3$ , we have

$3=-\ln\left|\cos\dfrac\pi4\right|+C$
$3=-\ln\dfrac1{\sqrt2}+C$
$3-\ln\sqrt2=C$

and so the particular solution to the IVP is

$y=-\ln|\cos x|+3-\ln\sqrt2$
$y=3-\ln|\sqrt2\cos x|$

4 0

2 years ago

What are the x intercepts of the quadratic function? Y=-x^2+2x-1

saw5 [17]

Answer:

x = 1

Step-by-step explanation:

Given in the question the equation

y = -x² + 2x - 1

To find the x-intercept, substitute in 0 for y

0 = -x² + 2x - 1

To find value of x use quadratic equation

x = -b ± √b²-4ac / 2a

here a = -1

b = 2

c = -1

x1 = -2 + √2²-4(-1)(-1) / 2(-1)

= -2 + 0 / -2

= -2 / -2

= 1

x2 = -2 - √2²-4(-1)(-1) / 2(-1)

= -2 - 0 / -2

= -2 / -2

= 1

8 0

3 years ago