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3 years ago

The square root of 54 is what??

Mathematics

1 answer:

Vikentia [17]3 years ago

6 0

$\sqrt{54}$ = 7.348469228

this is irrational, because it cannot be written in the form $\frac{a}{b}$
2. Irrational

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W-4=-12-3w solve for w

lyudmila [28]

w-4=-12-3w

Add 12 to each side:

w + 8 = -3w

Subtract 1w from each side:

8 = -4w

Divide both sides by -4:

w = 8 / -4

w = -2

5 0

3 years ago

What is the area of a parallelogram with a base of 0.56 cm and a height of 0.33 cm (to the nearest hundredths)? A) 0.18 cm2 B) 0

valentinak56 [21]

Answer: A) 0.18 cm²

Step-by-step explanation:

To calculate the area of a parallelogram you must apply the formula shown below:

$A=b*h$

Where b is the base and h is the height of the parallelogram.

You know the values of the base and the value of the height.

Therefore, when you susbstitute these values into the equation shown above, you obtain the following result:

$A=0.56*0.33cm=0.18cm^{2}$

6 0

3 years ago

Read 2 more answers

A teacher believes that the third homework assignment is a key predictor in how well students will do on the midterm. Let x repr

Darina [25.2K]

Answer:

Hello your question has a disjointed equation attached to it and it is also incomplete attached below is the correct and complete question

A teacher believes that the third homework assignment is a key predictor in how well students will do on the midterm. Let x represent the third homework score and y the midterm exam score. A random sample of last terms students were selected and their grades are shown below

answer :

y-intercept = 25.9047

slope = 2.8420

Step-by-step explanation:

Determine the slope for the regression equation and y intercept

The regression equation ( gotten using excel ; attached below is the excel sample on how the equation was gotten )

y = 25.9047 + 2.8420x

from the equation gotten above

y-intercept = 25.9047

slope = 2.8420

4 0

2 years ago

Could you please show the work for both of them?

lesantik [10]

7. y=-3/2x+8 (3rd answer choice)

substitute
-4=-3/2(8)+b
-4=-24/2 +b
-4=-12+b
+12 both sides
8=b

so equation would be...

y=-3/2x+8 (3rd answer choice)

8. y=-5x-17 (2nd answer choice)

substitute
-2=-5(-3)+b
-2=15+b
-15 both sides
-17=b

so the equation would be...

y=-5x-17 (2nd answer choice)

check your work by substituting each (x,y) value into the final equations if you want. hope this helps :))

3 0

2 years ago

Simplify the trigonometric expression sin(4x)+2 sin(2x) using Double-Angle

drek231 [11]

Answer:

${ \bf{ = \sin(4x) + 2 \sin(2x) }} \\ = { \bf{2 \sin(2x) \cos(2x) + 4 \sin(x) \cos(x) }} \\ { \bf{ = 4 \sin(x) \cos(x) . ({ \cos }^{2} x - { \sin}^{2} }x) + 4 \sin(x) \cos(x) } \\ = { \bf{4 \sin(x) \cos(x) ( { \cos }^{2}x - { \sin }^{2}x + 1) }} \\ = { \bf{4 \sin(x) \cos(x) }(2 { \cos }^{2} x)} \\ = { \bf{8 \sin(x) { \cos}^{3}x }}$

8 0

2 years ago