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2 years ago

PLEASE HELP ASAP!! will mark brainlest

Mathematics

1 answer:

son4ous [18]2 years ago

6 0

Step-by-step explanation:

1/2 × height × base

1/2 × 6.3 × 8

6.3 × 4 = 25.2 ans.

therefore, area of the ∆ is 25.2 ft ².

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Please round any decimal answers to one decimal place!!

disa [49]

Answer:

1) 11.9

2) 3.6

3) 18.9

4) 45.4

Step-by-step explanation:

Math

6 0

3 years ago

A student concluded that the solution to the

meriva

Answer:

Step-by-step explanation:

The given equation is √2x+1+3=0

And we have been given that x= 4

I do not agree with the solution because it does not give any real solution. It only gives possible solution. If you plug the value 4 in the original equation you will get 8 and the square root of 8 is a complex number. Thus 4 is an extraneous solution....

5 0

4 years ago

2e - 3f = 4

Varvara68 [4.7K]

Answer:

The value of e is -1 and f is -2.

Step-by-step explanation:

The steps are :

$2e - 3f = 4 - - - (1)$

$2e - 5f = 8 - - - (2)$

$2e - 3f - 2e - ( - 5f) = 4 - 8$

$2f = - 4$

$f = - 4 \div 2$

$f = - 2$

$substitute \: f = - 2 \: into \: (1)$

$2e - 3( - 2) = 4$

$2e + 6 = 4$

$2e = 4 - 6$

$2e = - 2$

$e = - 2 \div 2$

$e = - 1$

6 0

3 years ago

Read 2 more answers

A 37 bag sample had a mean of 421 grams. Assume the population standard deviation is known to be 29. A level of significance of

Ierofanga [76]

Answer: $H_0:\mu=421$

$H_a : \mu\neq421$

Step-by-step explanation:

A null hypothesis is a type of hypothesis that is used in statistics that assumes there is no difference between particular characteristics of a population wheres the alternative hypothesis shows that there is a difference.

Given: A 37 bag sample had a mean of 421 grams.

Let $\mu$ be the population mean.

Then, the null hypothesis would be:

$H_0:\mu=421$

whereas the alternative hypothesis would be:

$H_a : \mu\neq421$

5 0

3 years ago

Selling tickets to a

crimeas [40]

Answer:

9 dollars

Step-by-step explanation:

Solve with a system of equations

Let adult tickets be a and student tickets be s

1. 8a + 13s = 176

2. 4a + 4s = 68

3. s = 17 - a

Equation 2 is friendlier, so let's divide all the numbers by 4.

a + s = 17

Equation is s = 17 - a

Substitute s in equation 1

8a + 13(17-a) = 176

8a + 221 - 13a = 176

221 - 5a = 176

5a = 45

a = 9

The price of an adult ticket is 9 dollars

Hope this helps :)

8 0

3 years ago