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2 years ago

-42-[(-30)]+[(-50)]

Mathematics

2 answers:

irga5000 [103]2 years ago

6 0

Answer:

-62

Step-by-step explanation:

-42-[(-30)]+[(-50)]

-42-[-30]+[-50]

-42+30-50

-60

Hope this helps!

vagabundo [1.1K]2 years ago

3 0

Step-by-step explanation:

i try my best plz check it

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Find the x and y intercepts of the graph of the equation y=x^2-5

mr_godi [17]

Answer:

x intercepts -sqrt(5), + sqrt(5)

y intercept -5

Step-by-step explanation:

y = x^2 -5

to find the x intercept set y=0 and solve for x

0 = x^2-5

add 5 to each side

5 = x^2

take the square root of each side

+- sqrt(5) = sqrt(x^2)

x = +-sqrt(5) there are 2 x intercepts since it is a quadratic

to find the y intercept set x=0 and solve for y

y = 0-5

y = -5

8 0

3 years ago

What is the value of 9/5 x 1/3

adoni [48]

$\frac{9}{5} * \frac{1}{3} The nine cancels the three and leaves a remainder of three \frac{3}{5} * \frac{1}{1} 
$

: . $\frac{9}{5} * \frac{1}{3} = \frac{3}{5}$

6 0

3 years ago

Read 2 more answers

Can you help? I'm just too lazy to answer it lol

Usimov [2.4K]

Answer:

second answer should be corr3ect tell em if wrong

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Earth revolves around the Sun in 365 days, but the planet Mercury does so in only 88 days. Compared to Earth, how many more comp

Elena L [17]

Answer:

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

Step-by-step explanation:

<u>Earth</u> takes 365 days to make a complete revolution.

we can say that the rotational speed of Earth is $\dfrac{1}{365}\frac{\text{rev}}{\text{day}}$

so, in a 1000 days how many revolutions will Earth have made?

$\dfrac{1}{365}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

see that the 'day's cancel out. Simply multiply the two numbers!

$2.739\text{rev}$

<u>Next, do the same for Mercury</u>

we can say that the rotational speed of Mercury is $\dfrac{1}{88}\frac{\text{rev}}{\text{day}}$

as it completes 1 revolution in 88 days.

so, in a 1000 days how many revolutions will Mercury have made?

$\dfrac{1}{88}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

multiplying by 1/88 by 1000 yields:

$11.363\text{rev}$

The Question is how many MORE complete revolutions will Mercury make in 1000 days?

We need to subtract the revolutions of Mercury with Earth to find how far ahead is Mercury from Earth

$11.363\text{rev} - 2.739\text{rev}$

$8.624\text{rev}$

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

5 0

3 years ago

X-5=11-3x solve for x

defon

Answer:

Step-by-step explanation:

x-5=11-3x

+5 +5

x=16-3x

+3x +3x

4x=16

--- ----

4 4

//x= 4//

// have a great day //

6 0

2 years ago

-42-[(-30)]+[(-50)]​

-42-[(-30)]+[(-50)]