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3 years ago

Which of the following is a more precise measurement?

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

3 0

D) 1 hour, 4.5 seconds

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Find g−1(x) when g(x)=35x−9.

lana [24]

Answer: -(2x)/(5)-9

Step-by-step explanation:

4 0

3 years ago

5 (2 - 3s) = -20 thats it

Varvara68 [4.7K]

The answer to that question is “S=2”

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3 years ago

A shape is made of 12 right triangle of equal size. Each righ triangle has a base of 4 cm and a height of 5 cm. What is the tota

ioda

Answer: 120 cm².

Step-by-step explanation:

1. To solve this problem you must apply the formula for calculate the area of a triangle, which is:

$A=\frac{b*h}{2}$

Where b is the base and h is the height of the triangle.

2. Then, when you substitute the values given in the problem you obtain:

$A=\frac{(4cm)(5cm)}{2}=10cm^{2}$

3. You know that the shape is made of 12 right triangle of equal size, therefore, multiply the area obtained by 12.

4. Then the area of the shape is:

$A_s=12(10cm^{2})=120cm^{2}$

3 0

3 years ago

Read 2 more answers

N? - 16n+63 n² – 2n– 35 How would u solve this

zzz [600]

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4 0

3 years ago

In a statistics class of students, have volunteered for community service in the past. If two students are selected at random fr

Lynna [10]

Answer:

We do not have the total number of students or volunteers.

I will put variables (and then random numbers) and solve it, then you can put the numbers that you need in the equations.

Suppose that the class has Y students, and X of these students have volunteered.

The probability of picking at random a student that has volunteered is equal to the number of students that had volunteered divided by the total amount of students:

p1 = X/Y

now, we must choose another student, but now the volunteers are X - 1, and the total number of students is also Y - 1 (because we already took one student)

now, the probability of selecting other will be:

p2 = (X- 1)/(Y - 1)

Then, the joint probability of both events is equal to the product of both probabilities:

P = p1*p2 = (X/Y)*((X-1)/(Y -1))

Suppose that there are 20 students, and 10 students that have volunteered, then the equations are:

P = (10/20)*(9/19) = 0.237

3 0

3 years ago