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3 years ago

6

Solve the equation square root of the quantity x plus 3 plus 4 equals 5 for the variable. Show each step of your solution proces

s

1 answer:

Bad White [126]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

x+3+4=5

x+7=5

subtract 7 on both sides

x=-2

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Which score has a higher relative position, a score of 271.2 on a test for which = 240 and , or a score of 63.6 on a test for wh

Fittoniya [83]

Answer:

The score of 271.2 on a test for which xbar = 240 and s = 24 has a higher relative position than a score of 63.6 on a test for which xbar = 60 and s = 6.

Step-by-step explanation:

Standardized score, z = (x - xbar)/s

xbar = mean, s = standard deviation.

For the first test, x = 271.2, xbar = 240, s = 24

z = (271.2 - 240)/24 = 1.3

For the second test, x = 63.6, xbar = 60, s = 6

z = (63.6 - 60)/6 = 0.6

The standardized score for the first test is more than double of the second test, hence, the score from the first test has the higher relative position.

Hope this Helps!!!

3 0

3 years ago

Write a fraction with a denominator of 9. The fraction should be less than half

uysha [10]

Answer:

The only fraction i can think of is 2/9

Step-by-step explanation:

6 0

3 years ago

Find the measurement indicated in each parallelogram.<br> VH=3x+4<br> VX=7x+3<br> find VX

kondaur [170]

I’m a complete parallelogram

6 0

3 years ago

If x+y = z and y−z=x which of the following must be equal to z?

umka21 [38]

<u>ANSWER</u>

(C) y

<u>EXPLANATION</u>

We have two equations:

The first one is

$x + y = z...(1)$

The second equation is

$y - z = x...(2)$

Let us make z the subject of this second equation:

$\implies \: -x +y = z...(3)$

We now add equation (1) and (3) to get:

$(-x + x) + (y + y) = z + z$

We simplify to get:

$0+2y= 2z$

$2y= 2z$

Divide throu by 2.

$\frac{2y}{2} = \frac{2z}{2}$

$y= z$

$\therefore \: z = y$

The correct answer is C

8 0

4 years ago

The distance traveled by a toy car can be modeled by D(t) = t3 − 3t2 + t − 3, where t > 3 represents time in seconds. If the

Bogdan [553]

Answer:

$t^2+1$

Step-by-step explanation:

We are given that

Distance traveled by a toy car

$D(t)=t^3-3t^2+t-3$

Where t>3

Time taken by car =t-3 seconds

We have to find the expression which represents the speed of the toy car.

We know that

$Speed=\frac{Distance}{time}$

Using the formula

$Speed=\frac{(t^3-3t^2+t-3)}{t-3}$

$Speed=\frac{t^2(t-3)+(t-3)}{t-3}$

$Speed=\frac{(t-3)(t^2+1)}{t-3}$

$Speed=t^2+1$

Hence, the expression which represents the speed of the toy car

$t^2+1$

5 0

3 years ago