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3 years ago

Help please. Solve for the variable

Mathematics

1 answer:

arsen [322]3 years ago

8 0

Answer: X=14

Step-by-step explanation:

The leg and hypothesis is the sum of 20. You already have 6. 6 from 20 is 14

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Jacob made a circle-shaped poster for his geometry class.

krok68 [10]

<span>circumference is L=2 $\pi r$
L=2π9=18π=18*3.14=56.52 in
Answer: </span>circumference is <span>18π or 56.52 in</span>

5 0

4 years ago

A skateboard ramp at the skate park is in the shape of a triangular prism. What is the lateral surface area of the ramp? (SA = P

rodikova [14]

Answer:

Step-by-step explanation: i dont know

3 0

4 years ago

Assuming that the sample mean carapace length is greater than 3.39 inches, what is the probability that the sample mean carapace

joja [24]

Answer:

The answer is "".

Step-by-step explanation:

Please find the complete question in the attached file.

We select a sample size n from the confidence interval with the mean $\mu$ and default $\sigma$ , then the mean take seriously given as the straight line with a z score given by the confidence interval

$\mu=3.87\\\\\sigma=2.01\\\\n=110\\\\$

Using formula:

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

The probability that perhaps the mean shells length of the sample is over 4.03 pounds is

$P(X>4.03)=P(z>\frac{4.03-3.87}{\frac{2.01}{\sqrt{110}}})=P(z>0.8349)$

Now, we utilize z to get the likelihood, and we use the Excel function for a more exact distribution

$=\textup{NORM.S.DIST(0.8349,TRUE)}\\\\P(z$

the required probability: $P(z>0.8349)=1-P(z$

4 0

3 years ago

What is the value of x

Whitepunk [10]

Answer:

x = 98

Step-by-step explanation:

The sum of the interior angles in a polygon is

sum = 180° (n - 2) ← n is the number of sides

here n = 7, thus

sum = 180° × 5 = 900°

Sum the interior angles and equate to 900

x + 146 + 122 + 142 + 140 + 110 + 142 = 900, that is

x + 802 = 900 ( subtract 802 from both sides )

x = 98

8 0

3 years ago

The area of a triangle is 3.6 cm2. If the triangle has a base of 6 cm, what is the height?

Allisa [31]

The area of a triangle can be calculated using the following equation:

A = 1/2 (B x H)

Where B is the dimension of the base and H is the height of the triangle.

Since the area is known and the dimension of the base is also known, substitute the values into the equation to find the height:

3.6 cm2 = 1/2 (6 cm) (H)

Solving yields an answer of 1.2 cm. Hence the height is 1.2 cm.

7 0

3 years ago