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bearhunter [10]
3 years ago
5

Find the sum -2+(-3) =

Mathematics
2 answers:
viva [34]3 years ago
5 0

Answer:

-5

Step-by-step explanation:

-2+(-3)

-2-3

-5

just olya [345]3 years ago
4 0

Answer: -5

Step-by-step explanation: We can use a number line to help us visualize what's going on.

-2 tells us to move 2 units to the left us 0.

Then from there, -3 tells s to move an

additional 3 units to the left and we end up at -5.

I have shown the number line below.

So -2 + -3 is -5.

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Write a mathematical sentence for the inequality twice the difference of a number and seven is less than or equal to forty
Illusion [34]

2x +   7\leqslant 40
Sounds like that to me but that is symbolically showing of that's what your teacher means as mathematical sentence
5 0
3 years ago
Read 2 more answers
In the given figure, find m∠RST, if m∠RSU = 43º and m∠UST = 23º.
pickupchik [31]

Applying the angle addition postulate, the measure of angle RST is: 66°.

<h3>What is the Angle Addition Postulate?</h3>

If two angles share a common vertex and a common side, they are adjacent angles that form a larger angle. According to the angle addition postulate, the sum of these two adjacent angles will give a sum that is equal to the measure of the larger angle they both form.

We know the following:

Measure of angle RSU = 43º

Measure of angle UST = 23º

In the diagram given, angle RSU and angle UST are adjacent angles that form a larger angle, angle RST.

Therefore, based on the angle addition postulate, the measure of angle RST = sum of the measures of angles RSU and UST.

Therefore, we would have:

m∠RST = m∠RSU + m∠UST

Substitute

m∠RST = 43 + 23

m∠RST = 66°

Learn more about the angle addition postulate on:

brainly.com/question/24746945

#SPJ1

8 0
1 year ago
How do you write 22 1/3 as a fraction
Sergeeva-Olga [200]
Well, first you multiply 22×3 and then add the answer by 3!. whole times denominator plus numerator!
5 0
3 years ago
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How do you factor 3х2-8x?
marishachu [46]

Answer: 6-8x

Step-by-step explanation:

3 0
3 years ago
How many different 4 digit even numbers can be written using 0,5,6,3,8,7?
kherson [118]

Step-by-step explanation:

I assume the digits cannot be repeated in the numbers.

and that we don't want any numbers that start with 0, as that would be considered a 3- digit number, right ?

so, under these assumptions we have the question of in how many ways can we pull 4 digits out of 6.

if the sequence of the pulled digits would not matter, it would be combinations C(6, 4).

but because we are building actual numbers, the sequence does matter, and we use permutations P(6, 4).

P(6, 4) = 6!/(6-4)! = 6!/2! = 6×5×4×3 = 360

so, we can create 360 different numbers.

but not all of them are wanted.

we don't want the ones that start with 0. how many are those ?

since we are handling all digits in the same way and priority, there are an equal amount of numbers that start with a 0, or a 5, or a 6, or a 3, or a 8, or a 7.

so, 1/6 of the 360 numbers start with a 0, and we need to subtract them :

360 - 60 = 300 really 4-digit numbers

and from these 300 we only want even numbers. that means they can only end with 0, 6 or 8.

in the same way as for the first position, we have 1/6 of the more 300 numbers that end with one of these digits.

we allow 3 digits, so we have

3×1/6 × 300 = 1/2 × 300 = 150

that means we can write 150 different 4-digit even numbers out of these 6 digits.

6 0
2 years ago
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