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natta225 [31]
3 years ago
15

Find the value of x Write your answer in simplest radical form​

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0
What's the equation?
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Complete the table below to classify the triangles as scalene or isosceles.
BartSMP [9]

Answer:

1) Isosceles

2) Scalene

3) Scalene

Step-by-step explanation:

The 1st choice is isosceles because 2 side lengths are equal.

The 2nd and 3rd choice are scalene because none of the sides equal the other sides.

8 0
3 years ago
Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When car
Debora [2.8K]

Step-by-step explanation:

Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When carrying 15 gallons of fuel, the airplane weighs 2187 pounds. When carrying 35 gallons of fuel, it weighs 2303 pounds. How much does the airplane weigh if it is carrying 50 gallons of fuel?

----

You have two points relating fuel and weight.

(15,2187) and (35,2303)

------------

slope = (2303-2187)/(35-15) = 5.8

----

intercept = ?

2187 = 5.8*15 + b

b = 2100

-------

Equation:

f(x) = 5.8x + 2100

---

f(50) = 2390 lbs.

====================

6 0
3 years ago
Identify as an expression, equation, or inequality 3x +4 - 5(×+2)
mihalych1998 [28]

3x + 4 - 5 (x + 2) is an equation ; -6 = 2x

Given,

3x + 4 - 5 (x + 2)

We have to find this is whether an expression, equation or inequality.

First we have to solve this:

3x + 4 - 5 (x + 2)

3x + 4 - 5x - 10

- 2x - 6

-6 = 2x

Here, we can identify this is an equation.

What is an equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Learn more about equation here;

brainly.com/question/17177855

#SPJ1

8 0
1 year ago
Submarine a is position at -1100 feet in relation to sea level. Submarine be is position at -800 feet in relation to sea level.
Natasha_Volkova [10]

Answer:

<u>Submarine A needs to travel at 30 feet per minute and the Submarine B at a lower speed, 20 feet per minute. </u>

Step-by-step explanation:

This is the information given to solve the question:

Submarine A position = - 1,100 feet

Submarine B position = - 800 feet

New position for Submarine A and B = - 200 feet

Duration of the travel = 30 minutes

Distance that Submarine A need to travel = - 200 + 1,100 = 900 feet

Distance that Submarine B need to travel = - 200 + 800 = 600 feet

For calculating the speed, we do this new calculation:

Speed Submarine A = Distance that Submarine A need to travel/Duration of the travel

Speed Submarine A = 900 feet/30 minutes

Speed Submarine A = 30 feet/minute (Dividing by 30)

Speed Submarine B = 600 feet/30 minutes

Speed Submarine B = 20 feet/minute (Dividing by 30)

<u>Submarine A needs to travel at 30 feet per minute and the Submarine B at a lower speed, 20 feet per minute. </u>

7 0
3 years ago
Read 2 more answers
Test the claim about the difference between two population means mu_1 and mu_2 at the level of significance alpha. Assume the sa
d1i1m1o1n [39]

Answer:

a) Alternative hypothesis, H_{a} : \mu_{1} \neq  \mu_{2}

b) z = -2.91, Pvalue = 0.002

c)Option C. Reject H_0. There is enough evidence at the 1% level of significance to reject the claim.

Step-by-step explanation:

a) Null hypothesis, H_{0} : \mu_{1} = \mu_{2}

Alternative hypothesis, H_{a} : \mu_{1} \neq  \mu_{2}

b) Standardized test statistic

Level of significance, \alpha = 0.01

\sigma_{1}  = 3.2

\sigma_{2} = 1.7

X_{1} = 16\\X_{2} = 18\\n_{1} = 30\\n_{2} = 27

z = \frac{\mu_{1}- \mu_{2}  }{\sqrt{\frac{\sigma_{1} ^{2} }{n_{1} } + \frac{\sigma_{2} ^{2} }{n_{2} } }}

z = \frac{16-18  }{\sqrt{\frac{3.2^{2} }{30 } + \frac{1.7 ^{2} }{27 } }}

z = -2.91

Checking the p-value that corresponds to z = -2.906

P-value = 0.002

c) What is the proper decision

P-value  = 0.002

Level of significance, α = 0.01

0.002 < 0.01

Since Pvalue < α, the null hypothesis H₀ should be rejected.

Option C is the correct option.

3 0
3 years ago
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