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3 years ago

A 70° angle, a 30° angle, an 80° angle how many triangles can be made with the angle measures shown here?

Mathematics

2 answers:

AURORKA [14]3 years ago

5 0

C) more than one triangle

Answer:

C) more than one triangle

Step-by-step explanation:

Elis [28]3 years ago

4 0

The sum of all angles in any given triangle add up to 180 degrees;
In this case the sum is 70+30+80
Which gives, 180 degrees,
Thus a triangle can be formed; but since we are not given any measurements of the edges , more than one triangle can be formed depending on the length of the edges used.
Therefore the answer is C. more than one triangle.

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Two cards are drawn in succession from a standard 52-card deck.1. What is the probability that the first card is red and the sec

rodikova [14]

Answer:

52 cards:

26 red and 26 black

P(R) = probability of picking a red card

P(B) = probability of picking a black card

P(R) = P(B) = ¹/₂

If with replacement:

P(R∩B) = (¹/₂)(¹/₂) = ¹/₄

If without replacement:

P(R∩B) = (¹/₂)(²⁶/₅₁) = ¹³/₅₁

8 Balls:

3 red and 5 white

P(R) = probability of picking a red ball

P(W) = probability of picking a white ball

P(R) = ³/₈

P(W) = ⁵/₈

If with replacement:

P(R∩W) ∪ P(W∩R) = (³/₈)(⁵/₈) + (⁵/₈)(³/₈)

= ¹⁵/₆₄ + ¹⁵/₆₄

= ³⁰/₆₄

= ¹⁵/₃₂

If without replacement:

P(R∩W) ∪ P(W∩R) = (³/₈)(⁵/₇) + (⁵/₈)(³/₇)

= ¹⁵/₄₂ + ¹⁵/₄₂

= ³⁰/₄₂

= ⁵/₇

8 0

3 years ago

You read 9.75 pages in your science book and 24.5pages of a play for English class. It takes you 1.2minutes to read each page of

drek231 [11]

Answer:

the number of time spend in reading is 31.3 minutes

Step-by-step explanation:

The computation of the number of time spend in reading is as follows:

= 9.75 pages in science book × 1.2 minutes + 24.5 pages in english class × 0.8 minutes

= 11.7 minutes + 19.6 minutes

= 31.3 minutes

Hence, the number of time spend in reading is 31.3 minutes

The same is relevant and considered

6 0

3 years ago

mean of 164,175,178,166,167,145,176,150,174,162,180,156,173,158,182,184,160,172,186,168,195,169,171,187,170

Karo-lina-s [1.5K]

Answer:

170.72

Step-by-step explanation:

to find the mean, we must add al the numbers and divide it by n

that is,

164,175,178,166,167,145,176,150,174,162,180,156,173,158,182,184,160,172,186,168,195,169,171,187,170 we have to add al these numbers and divide it by 25

sum- 4628 divided by 25

=170.72

7 0

2 years ago

70° 13 ४ c= 12.2 x A

Aleonysh [2.5K]

Answer:

sin70=13/x

$\sin(70) \times x = 13$