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Airida [17]
3 years ago
11

Bonjour, j’espère ne pas vous déranger on m’a donné un dm à faire j’ai avancé dessus mais il y’a une exercice que je ne comprend

pas a moitié :
2. Une voiture roule sur autoroute à 130 km/h (la route est sèche). Le conducteur aperçoit un obstacle dans ces phares à 100 m devant lui. Il doit alors faire un freinage d'urgence. Aura-t-il le temps de s'arreter ? Justifier.
Mathematics
1 answer:
brilliants [131]3 years ago
6 0

Answer:

yes

Step-by-step explanation:

the road is not slippery if it was then no.

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The sum of the measures of angles for a triangle is 180°. Find the value of x and then the measures of the 3 angles
dmitriy555 [2]

Answer:

The value of x is 50

The measures of the 3 angles are 50°, 100°, 30°

Step-by-step explanation:

Let us solve the question

∵ The sum of the measures of the angles of a triangle is 180°

∵ The measures of the 3 angles of the given Δ are x°, 2x°, (x - 20)°

→ Add them and equate the sum by 180

∴ x° + 2x° + (x - 20)° = 180°

→ Add the like terms

∵ (x + 2x + x) + (-20) = 180

∴ 4x - 20 = 180

→ Add 20 to both sides

∵ 4x - 20 + 20 = 180 + 20

∴ 4x = 200

→ Divide both sides by 4 to find x

∴ x = 50

∴ The value of x is 50

To find the measures of the 3 angles substitute x by 50 in their expressions

∵ The measure of one angle is x

∴ The measure of the 1st angle is 50°

∵ The measure of the 2nd angle is 2x

∴ The measure of the 2nd angle = 2(50)

∴ The measure of the 2nd angle is 100°

∵ The measure of the 3rd angle is (x - 20)

∴ The measure of the 3rd angle = (50 - 20)

∴ The measure of the 3rd angle is 30°

∴ The measures of the 3 angles are 50°, 100°, 30°

6 0
3 years ago
Simplify the expression <br> Square root 24
Semmy [17]

Answer:

\sqrt{24} = 2\sqrt{6}

Step-by-step explanation:

Hope this helps

3 0
3 years ago
Read 2 more answers
Can anyone help me with this please
rosijanka [135]

Answer:

I agree with what they said

Step-by-step explanation:

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8 0
3 years ago
Look at the sequence in the table.
malfutka [58]

Answer:

A

Step-by-step explanation:

The consecutive values of a_{n} have a common difference d, that is

d = 8 - 3 = 13 - 8 = 18 - 13 = 23 - 18 = 5

This indicates that the sequence is arithmetic.

The recursive formula allows the next term in the sequence to be found from the previous term by adding 5, thus

a_{n} = a_{n-1} + 5 → A

7 0
2 years ago
Ms. Skeen bought 3 pounds of candy for the Christmas party. There was a total of 147 pieces of candy. She wants to divide it amo
ohaa [14]

The 3 lbs of candy is irrelevant, so we can discard that. All you need to do is divide 147 by 26, which is 5.65 pieces of candy. Each student will get 5 pieces, with a few left over.

5 0
2 years ago
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