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3 years ago

What is the area of a triangle with a height of 2.9 cm and a base of 7 cm

Mathematics

1 answer:

allsm [11]3 years ago

6 0

Answer:

area=10.15 cm

Step-by-step explanation:

a=h*b/2

a= 2.9*7/2

a= 10.15

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A diameter of a circle has endpoints P(-10,-2) and Q(4,6).

kompoz [17]

Answer:

a. (-3, 2).

b. √65

c. (x + 3)^2 + (y - 2)^2 = 65

Step-by-step explanation:

a. The center is the midpoint of the diameter PQ.

= (-10+4)/2, (-2+6)/2

= (-3, 2).

b. The radius is the distance from the center to a point on the circle.

Take the point (4, 6):

The radius = √((-3-4)^2 + (2-6)^2)

= √65.

c. The equation of the circle is:

Using the standard form

(x - h)^2 + (y - k)^2 = r^2 where (h, k) is the center and r = the radius:

it is (x - (-3)^2 + (y - 2) = 65

= (x + 3)^2 + (y - 2)^2 = 65.

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3 years ago

Read 2 more answers

A study conducted at a certain college shows that 65% of the school's graduates find a job in their chosen field within a year

alexdok [17]

Answer: 0.009

Step-by-step explanation:

Formula we use here : Binomial distribution formula

Probability of getting success sin x trial = $P(X)=^nC_xp^x(1-p)^{n-x}$ , where n is the sample size and p is the probability of success in each trial .

Given : A study conducted at a certain college shows that 65% of the school's graduates find a job in their chosen field within a year after graduation.

i.e. p= 0.65

Sample size : n= 11

Now, the probability that 11 randomly selected graduates all find jobs in their chosen field within a year of graduating:-

$P(X)=^{11}C_{11}(0.65)^{11}(1-0.65)^{11-11}\\\\=(1)(0.65)^{11}(1)\\\\=0.00875078317401\approx0.009$

Hence, the probability that 11 randomly selected graduates all find jobs in their chosen field within a year of graduating = 0.009

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3 years ago

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fredd [130]

The answer is x squared -3x+2

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3 years ago

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kondor19780726 [428]

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3 years ago

Mr. Kimura designed a right-triangular garden for his yard, as shown in the following diagram

lana66690 [7]

Answer:35g + 14k

Step-by-step explanation:

T = time D = drill

D(5G + 2K) = T

7(5g + 2k) = T

35g + 14k = T

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2 years ago

What is the area of a triangle with a height of 2.9 cm and a base of 7 cm​

What is the area of a triangle with a height of 2.9 cm and a base of 7 cm