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3 years ago

A negative integer + a positive integer

Mathematics

2 answers:

Mashutka [201]3 years ago

8 0

Hi! I can help you with joy!

A negative integer + a positive integer:

-3+8=5

Here, we get a positive integer or a counting number.

Now, look here:

-100+60=-40

Here, we get a negative integer.

So the answer is:

Either a positive or a negative integer.

# $RosalindCordeliaIsHereToHelpYou$

timurjin [86]3 years ago

6 0

Answer:

either negative or positive integer

hope that helps uhh :)

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scoundrel [369]

Hello there.

How do you convert mg to kilograms?

1e-6

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3 years ago

Can someone PLEASE hwlp me??

Aliun [14]

Answer:

Step-by-step explanation:

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It states we have 24 red notebooks

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3 years ago

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Two mechanics worked on the car the first mechanic work for five hours in a sec mechanic work for 15 hours together the tires a

FrozenT [24]

Answer:

Mechanic 1: $55 per hour

Mechanic 2: $105 per hour

Step-by-step explanation:

Given

Represent the rate of the first mechanic with x and the second with y.

So, we have:

$x + y = 160$

The total earnings is: $1850, so we have:

$5x + 15y = 1850$

Required

Determine the rate of each

The equations are:

$x + y = 160$ --- (1)

$5x + 15y = 1850$ --- (2)

Divide (2) through by 5

$x + 3y = 370$ --- (3)

Subtract (1) from (3)

$x - x + 3y - y = 370 - 160$

$2y = 210$

Divide through by 2

$y = \frac{210}{2}$

$y = 105$

Substitute 105 for y in (1)

$x + y = 160$

Make x the subject

$x = 160 - y$

Substitute 105 for y

$x = 160 - 105$

$x = 55$

Hence:

Mechanic 1: $55 per hour

Mechanic 2: $105 per hour

7 0

3 years ago

Which graph represents the function g(x) = |x + 4| +2

insens350 [35]

Answer:

none of the two graphs in the pic.

it should be one in the II quadrant

Step-by-step explanation:

the plus four means to move 4 to the left

the plus 2 means to move up 2

That would make the vertex in the II quadrant.

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3 years ago

Read 2 more answers

an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.

dolphi86 [110]

Answer:

$\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}$

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

$A_\triangle=\dfrac{bh}{2}$

b - base

h - height

We need a length of a height.

Use the Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have:

$leg=5,\ leg=h,\ hypotenuse=20$

Substitute:

$5^2+h^2=20^2$

$25+h^2=400$ subtract 25 from both sides

$h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm$

Calculate the area:

$A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2$

8 0

3 years ago