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Paladinen [302]

1 year ago

8

I need help on a question i don't know!

1 answer:

user100 [1]1 year ago

5 0

Answer:

20:4

Step-by-step explanation:

got it for u

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Computer Action Company sells computers and computer parts by mail. The company assures its customers that products are mailed a

Scorpion4ik [409]

Answer:

The t distribution is used, because we have the standard deviation for the sample.

Step-by-step explanation:

When to use the z or the t distribution?

When we have the standard deviation for the population, we use the z distribution.

When we have the standard deviation for the sample, we use the t distribution.

In this question:

We have the standard deviation for the sample, which means that the t distribution is used.

8 0

2 years ago

The two lines graphed below are not parallel how many solutions are there to the system of equations

Novay_Z [31]

Answer:

one solution the have a point trust me a

5 0

2 years ago

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1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

2 years ago

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The distance traveled (in feet) by the three-toed sloth can be modeled by f(s) =2.3s, where s is the time in minutes. Find the d

Mice21 [21]

$\huge{\boxed{\text{110.86 feet}}}$

We know that $f(s)=2.3s$ and $s=48.2$

Substitute in the value. $f(48.2)=2.3*48.2$

Use a calculator to multiply. $f(48.2)=\boxed{110.86}$

5 0

2 years ago

Identify the terms and like terms in the expression 3x+4-7x-6

Sliva [168]

Answer:

−

4x−2

Step-by-step explanation:

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3 years ago

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