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9966 [12]
3 years ago
15

What is (0,6] n (6,8]?

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

(6) the letter n : intersection which means the number you will find at the first bracket and has the same number at the other bracket

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The sum of the digits of a two-digit number is 14. If the number formed by reversing the digits is less than the original number
aivan3 [116]

Answer: Dear friend my answer for this question is 86.

Step-by-step explanation:Let the two digits of two digit number be, 10s digit x and 1s digit y.

x + y = 14

x = 14 - y…..Eq..1

The nuber formed is 10x + y

If the number formed by reversing the digits is 18 less than the original number, what is the original number

On reversing the digit the number will be 10y + x

10y + x + 18 = (10x + y)

10y + x = 10x + y - 18

10y - y + x - 10x = - 18

9y - 9x = -18…Eq..2

Now substituting the value of x from Eq..1 to Eq..2

9y - 9 (14 - y) = - 18

9y - 126 + 9y = - 18

18y = 126 - 18

18y = 108

y = 108/18

y = 6

Thus 1s digit if the number is 6

Substituting the derived value of y in Eq..1 to derive value of x.

x = 14 - y

x = 14 - 6

x = 8

The 10s digit if two digit number is 8.

The original number formed is 86.

On reversing the digits, the number transform to 68, which is 18 less than original number

Answer the original number is 86.

5 0
3 years ago
Math question please help if you get this right I will mark you as a brainliest
zhenek [66]

Cosine Rule again:-

cos A = (9^2 - 6^2 - 14^2) / (-2*6*14)

= 0.8988

m < A = 26 degrees

5 0
3 years ago
How to do 15x28 distributive property
professor190 [17]

15 * 28 = 420. Should be your answer.

3 0
3 years ago
Five yellow M&amp;Ms for every three green how many green M&amp;Ms if there are 95 yellow
OLEGan [10]
95/5= 19
19x3= 57 green M&M’s
5 0
2 years ago
A plane is descending onto the runway with an angle of depression of 55°. If it has 2.8 miles to go before landing (hypotenuse),
nalin [4]

Answer:

Option C is correct

Step-by-step explanation:

Given: A plane is descending onto the runway with an angle of depression of 55°. Also, it has 2.8 miles to go before landing.

To find: current altitude of the plane

Solution:

Consider the attached image.

In ΔABC,

\angle ACB=55^{\circ} (Alternate interior angles)

For any angle \theta,

tan \theta = side opposite to angle/side adjacent to angle

\tan C=\frac{AB}{BC}

Put \angle C=55^{\circ}\,,\,BC=2.8\,\,miles

AB=2.8\,\tan 55^{\circ}=3.999\approx 4\,\,miles

So, the current altitude of the plane is 4 miles.

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4 0
2 years ago
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