I can't seem to get this one right, Any help?

What is the value of X?<br><br> What is the value of Y?<br><br> What is the value of Z?

baherus [9]

Answer:

The answer is

$x = 12 \\ y = 20 \\ z = 15$

Step-by-step explanation:

By using Pythagoras low

Then we can find that

${y}^{2} = {x}^{2} + {16}^{2} \\ {z}^{2} = {x}^{2} + {9}^{2} \\ {y}^{2} + {z}^{2} = {25}^{2} \\ then \\ {x}^{2} + {9}^{2} + {x}^{2} + {16}^{2} = {25}^{2} \\ 2 {x}^{2} = 288 \\ x = 12 \\ By \: substituting \: x \: into \: the \: previous \: equations \\ then \: \\ y = 20 \\ z = 15$

7 0

3 years ago

Read 2 more answers

Write the standard form of a line that passes through (1, 1) and (3, 4)

Sophie [7]

Answer:

3x - 2y = 1

Step-by-step explanation:

Step 1: Find the slope

slope m = (y2 - y1)(/x2 - x1)

m = (4 - 1)/(3 - 1) = 3/2

Step 1: Use the formula y = mx + b to solve

This is slope-intercept form of a line. We have a slope of 3/2, and a point (x, y), which is (1, 1). Plug those values into the equation above and solve for b (the only variable we are missing

1 = (3/2)(1) + b

1 = 3/2 + b

1 - 3/2 = b

2/2 - 3/2 = b

-1/2 = b

Step 2: Rewrite the formula using the slope and the b value we just calculated

y = (3/2)x - 1/2

Step 3: Standard form of a line is ax + by = c, where a is a positive integer, so we rearrange the equation from step 2 to standard form.

y = (3/2)x - 1/2

-(3/2)x + y = -1/2 (subtract (3/2)x from both sides)

-3x + 2y = -1 (multiply by 2 to get rid of the fraction on x)

3x - 2y = 1 (multiply by -1 so a becomes positive)

3 0

3 years ago

2. A geological study indicates that an exploratory oil well drilled in a particular region should strike oil with probability 0

yKpoI14uk [10]

Answer:

3.07% probability that the third oil strike comes on the fifth well drilled.

Step-by-step explanation:

For each oil drill, there are only two possible outcomes. Either there is a strike, or there is not. The probability that oil is striken in a trial is independent of other trials. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$