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3 years ago

How add integres with differents sings

2 answers:

7 0

To add integers with different signs, subtract the lesser absolute value from the greater absolute value. Use the sign of the integer with the greater absolute value for the sum. The following steps will be useful to find the sum of two numbers with different signs.

kumpel [21]3 years ago

4 0

(-) + (-) = (-)

(-) - (-) = solve the equation like (-) + (+)

(+) + (+) = (+)

(+) - (+) = (+) or (-)

(+) + (-) = solve the equation like (+) - (+)

(+) - (-) = solve the equation like (+) + (+)

(-) + (+) = (+) or (-)

i think i covered them but tell me if i missed sum.

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Find a formula for the described function. an open rectangular box with volume 9 m3 has a square base. express the surface area

Maru [420]

Let

x--------> the length side of the square base

h--------> the height of the box

we know that

<u>the volume of the box is equal to</u>

$V=x^{2} *h\\ V=9\ m^{3}$

$x^{2} *h=9\\\\h=\frac{9}{x^{2} }$

<u>the surface area of the box is equal to</u>

$SA=area\ of\ the\ base+perimeter\ of\ base*height$ (remember that the box is open)

area of the base= $(x^{2})\ m^{2}$

Perimeter of the base= $(4*x)\ m$

height=(h) m

$h=\frac{9}{x^{2}}$

substitute

$SA=x^{2} +4*x*h\\ \\ \\ SA=x^{2} +4*x*\frac{9}{x^{2} } \\ \\ SA=x^{2} +\frac{36}{x}$

we know that

the value of x can not be negative and the denominator can not be zero

therefore

<u>the answer is</u>

the domain of SA is x> 0

the domain is the interval-------------> (0,∞)

6 0

3 years ago

Tasha believes that she can rewrite the difference of 120 minus 36 as a product of the GCF of the two numbers and the difference

xz_007 [3.2K]

Answer:

GCF = 12

For the values 36, 120:

Solution by Factorization:

The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36

The factors of 120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

Then the greatest common factor is 12.

Pair Share:

The GCF of 120 and 36 is ======> 12

so, 120 – 36 can be written as:

12 × 10 – 12 × 3, which is 12 × (10 – 3) or 12 × 7.

Answer: ========> Therefore, Tasha is correct

Hope that helps!!!! : )

4 0

4 years ago

Which of the following are true statements? Select all that apply.

Gennadij [26K]

Since sine and cosecant are reciprocals, when one has a maximum the other has a minimum and vice versa.

That's choices B & D

Not sure what the question at the end is asking; at 90 degrees and also at -90 degrees the values of sine and cosecant are equal.

3 0

4 years ago

Read 2 more answers

The students at Porterville Elementary sold raffle tickets, each for the same price, for a fundraiser. The equation below shows

harina [27]

The "unit rate" appears to be $20 per ticket.

7 0

3 years ago

Points A, B, and C, form a triangle. The distance between point A and point B is 15 yards. The distance between point B and poin

Natasha_Volkova [10]

The total distance if Pete walks from A to B to C is 40 yards, the direct distance from A to C is more than 10 yards, and an inequality w < 30

<h3>What is inequality?</h3>

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

We have:

Points A, B, and C, form a triangle. The distance between point A and point B is 15 yards. The distance between point B and point C is 25 yards.

Total distance if Pete walks from A to B to C:

= 15 + 25 = 40 yards

As we know in the triangle the sum of the two sides is greater than the third side.

25 + 15 > AC

The direct distance from A to C is more than 10(25-15) yards.

The inequality w < 30 represents the distance, w, that Pete might save by taking the direct path.

Thus, the total distance if Pete walks from A to B to C is 40 yards, the direct distance from A to C is more than 10 yards, and an inequality w < 30

Learn more about the inequality here:

brainly.com/question/19491153

#SPJ1

7 0

2 years ago