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Kisachek [45]
3 years ago
8

Evaluate the expression 7x-10

Mathematics
1 answer:
RoseWind [281]3 years ago
4 0

Answer:

-3x

Step-by-step explanation:

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Please help, I will mark!!
Alik [6]

Answer:

d=28.28

Step-by-step explanation:

To calculate the lenght of the diagonal d across the square, we can assume that the square it is compound of two right triangles. So, we can resolve this exercise using The Pythagorean Theorem.

<em>The Pythagorean theorem</em> states that in every right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the legs. It is the best-known proposition among those that have their own name in mathematics.

If in a right triangle there are legs of length a and b, and the measure of the hypotenuse is c, then the following relation is fulfilled:

a^{2} +b^{2} =c^{2} a is the height, b is the base, and c is  

the hypotenuse.

To obtain the value of the hypotenuse

c= \sqrt{a^{2} +b^{2} }

To find the value of the lenght of the diagonal d across the square, we have:

d=\sqrt{a^{2} +b^{2} } Where a = b = 20

Substituting the values

d=\sqrt{(20)^{2} +(20)^{2} }\\d=\sqrt{400+400} =\sqrt{800} \\d=28.284

Round the answer to 2 decimal places

d=28.28

6 0
3 years ago
Write 12.9 + 8 using words.
Anna35 [415]
Twelve point nine plus eight equals twenty point nine (12.9 + 8 = 20.9)
Hope this helped :)
7 0
3 years ago
In how many ways may one A, three B’s, two C’s, and one F be distributed among seven
astraxan [27]
7 different ways is the answer
5 0
2 years ago
The avocado own a 1/4 acre orchard. Two fifths of the orchard  is planted in orange trees. What fraction of an acre in planted i
Svetlanka [38]
Two\ fifths\ of\ the\ orchard= \frac{2}{5}  \cdot  \frac{1}{4}\  acre= \frac{1}{10} \ acre\\\\Ans.\ 0.1\ acre\  in\ orange\ trees.
5 0
3 years ago
Read 2 more answers
How do i do segment measures
Eduardwww [97]

Asimply measure its length. What else could you measure? After all, length is the only feature a segment has. You’ve got your short, your medium, and your long segments.

Step-by-step explanation:

length

7 0
3 years ago
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