All categories

3 years ago

FIRST ANSWER WILL GET BRAINLIEST

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

Answer:

undefined i think

Step-by-step explanation:

You might be interested in

Hurray and solve please

bogdanovich [222]

Answer:

y= 4x+8

Step-by-step explanation:

you multiply 4 by X which equals 4X

the multiply the four by the two which equals eight

3 0

3 years ago

Read 2 more answers

What expressions are equivalent to 20

Diano4ka-milaya [45]

Answer:

What expressions are equivalent to 20

Step-by-step explanation:

since you didn't .show a link this is my guess, i guess.

4x5=20

6 0

4 years ago

Use the discriminant to determine the number of real solutions to the quadratic equation. n^2 − n − 6 = 0 What is the number of

Andreas93 [3]

Answer: last option

Step-by-step explanation:

The formula to find the Discriminant is:

$D=b^2-4ac$

Given the quadratic equation $n^2-n-6=0$ , you can identify that:

$a=1\\b=-1\\c=-6$

Now, you can substitute values into the formula $D=b^2-4ac$ , then:

$D=b^2-4ac\\D=(1)^2-4(1)(-6)\\D=25$

As the Discriminant is greater than 0 ( $D>0$ ), then the quadratic equation $n^2-n-6=0$ has two distinct real solutions.

6 0

4 years ago

Read 2 more answers

Six hundred two and six tenths as a decimal

AlexFokin [52]

Answer:

602.6

Step-by-step explanation:

The six is in the hundreds place. Since no number is specified for the tens, a 0 goes there as a placeholder. The two, since it has no tag, is assumed to go in the ones. Another six goes in the tenths place after the decimal.

3 0

4 years ago

The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a population standard deviati

garik1379 [7]

Answer:

Their welders earn $50,000 annually.

Step-by-step explanation:

Given : $\mu = 50,000$

$\sigma = 2000$

n = 100

$\bar{x}=50350$

To Find : The ship building association wishes to find out whether their welders earn more or less than $50,000 annually.

Solution :

$H_0:\mu = 50000\\H_a: \mu \neq 50000$

n = 100

Since n > 30

So we will use z test

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

Substitute the values

$z= \frac{50350-50000}{\frac{2000}{\sqrt{100}}}$

$z=1.75$

Refer the z table for p value

p value = 0.9599

α= 0.05

Since p value > α

So we accept the null hypothesis .

Hence their welders earn $50,000 annually.

4 0

3 years ago