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3 years ago

Classify the following triangle as acute, obtuse, or right.

Mathematics

2 answers:

Lynna [10]3 years ago

8 0

That would be an acute triangle because all the angles are less than 90 degrees I hoped this helped

Vadim26 [7]3 years ago

7 0

Answer:

Acute triangle

Step-by-step explanation:

An acute triangle is one in which all its angles measure less than 90 °.

The triangle of the figure has the angles: 51 °, 51 °, 78 °

Which are all less than 90 °, thus it is an acute triangle.

We discard options A.Obtuse and B.Right because an obtuse triangle has an angle of more than 90 °, and a right triangle has an angle of exactly 90 °, and none of these definitions match the triangle in the image.

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Willie left the mall and traveled toward the town hall at an average speed of 40 km/h. Gabriella left two hors later and travele

mezya [45]

Answer:

3 hours

Step-by-step explanation:

Given that:

Average speed of Willie = 40 km/h

After 2 hours, Gabriella traveled in opposite direction at an speed of 70 km/h.

After some time, they are 410 km apart.

To find:

Number of hours = ?

Solution:

For the first two hours, Willie traveled alone.

Formula for distance:

$Distance = Speed \times Time$

Distance traveled in two hours by Willie = $40 \times 2 = 80\ km$

Now, they both travel in opposite directions.

So the relative speed is = 40 + 70 = 110 km/h

The distance traveled by them = 410 - 80 = 330 km

$Time\ taken = \dfrac{330}{110} = 3\ hours$

Therefore, the time taken is 3 hours.

5 0

3 years ago

A deck of ordinary cards is shuffled and 13 cards are dealt. What is the probability that the last card dealt is an ace?

alexandr1967 [171]

Answer:

The probability that the last card dealt is an ace is $\frac{1}{13}$ .

Step-by-step explanation:

Given : A deck of ordinary cards is shuffled and 13 cards are dealt.

To find : What is the probability that the last card dealt is an ace?

Solution :

There are total 52 cards.

The total arrangement of cards is 52!.

There is 4 ace cards in total.

Arrangement for containing ace as the 13th card is $4\times 51!$ .

The probability that the last card dealt is an ace is

$P=\frac{4\times 51!}{52!}$

$P=\frac{4\times 51!}{52\times 51!}$

$P=\frac{4}{52}$

$P=\frac{1}{13}$

Therefore, the probability that the last card dealt is an ace is $\frac{1}{13}$ .

4 0

3 years ago

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kramer

Answer:

Step-by-step explanation :

$\sqrt{ \frac{243}{3} }$

$= \sqrt{81}$

$= \sqrt{9 \times 9}$

= 9(Ans)

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3 years ago

Read 2 more answers

Which number completes this number sentence? [ ? ] > -6 A.-8 B.-7 C.-6 D.0

Xelga [282]

Answer:

It is 0

Step-by-step explanation:

Unlike the positive side of the number line which increases its value as it goes up in numbers, the negative side of a number line increases its value as it goes goes down in numbers as the more closer a negative number is to the positive side of infinity, the greater value it has. In this instance, zero is the greater number than -6 and all other negative numbers.

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3 years ago

Graph 5x+y=2 and 5x-y=4

Andru [333]

Answer:

What do you mean

Step-by-step explanation:

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4 years ago