All categories

3 years ago

Is this right if not correct answer plzzz

Mathematics

1 answer:

ololo11 [35]3 years ago

3 0

Answer:

± 14.

Step-by-step explanation:

If we plug √196 into the calculator, we get 14.

However, every square contains a negative square root as well since multiplying two negative numbers together results in a positive number.

Therefore:

Both 14 × 14 and -14 × -14 are equal to 196.

You might be interested in

Timothy built a base for a circular tabletop. The base can support a tabletop with a radius of at least 6 inches, but not more t

neonofarm [45]

Let

r------> the radius of the circular tabletop

we know that

$r\geq 6\ in$

$r\leq23\ in$

$6\ in \leq r \leq 23\ in$

The area of a circle is equal to

$A=\pi r^{2}$

where

r is the radius of the circle

Part a) What is the smallest possible area of the tabletop that will fit on Timothy’s table base?

we know that

the smallest possible area of the tabletop is for $r=6\ in$

Substitute the value of r in the formula

$A=\pi 6^{2}$

$A=113.09\ in^{2}$

Round to the nearest whole square inch

$A=113\ in^{2}$

therefore

the answer part a) is

the smallest possible area of the tabletop is $113\ in^{2}$

Part b) What is the largest possible area of the tabletop that will fit on Timothy’s table base?

we know that

the largest possible area of the tabletop is for $r=23\ in$

Substitute the value of r in the formula

$A=\pi 23^{2}$

$A=1,661.90\ in^{2}$

Round to the nearest whole square inch

$A=1,662\ in^{2}$

therefore

the answer part b) is

the largest possible area of the tabletop is $1,662\ in^{2}$

7 0

4 years ago

Read 2 more answers

Find the y-coordinate of the y-intercept of the polynomial function defined

Bas_tet [7]

The y intercept is where the function passes through the y axis, so the “x” value needs to equal 0. We sub 0 in for “x” and solve for “y”.

f(0) = 9(0)^2 - 7 - 8(0)

f(0) = -7

Therefore the “y” coordinate would be -7

The ordered pair would be

(0, -7)

6 0

3 years ago

What expression represents the width of the rectangle

Oduvanchick [21]

<h3>Answer:</h3>

x - 8

<h3>Solution:</h3>

We are given a rectangle with one of its sides ( length ) equal to ( x - 7 ) Meters.

Also we are given the area of the rectangle as x² - 15x + 56 square meters .

We have to find the expression for another side of the rectangle i.e it's width

We will use the formula of area of rectangle to find the expression :

Area = length × width

Therefore,

‎ㅤ‎ㅤ➝ A = l × w

‎ㅤ‎ㅤ➝ x² - 15x + 56 = ( x - 7 ) × w

‎ㅤ‎ㅤ➝ x² - 8x -7x + 56 = ( x - 7 ) × w

‎ㅤ‎ㅤ➝ (x² - 8x )( - 7x + 56 ) = ( x-7 ) w

‎ㅤ‎ㅤ➝ x( x - 8 )-7( x - 8 ) = ( x - 7 )w

‎ㅤ‎ㅤ➝ ( x - 8 )( x - 7 ) = ( x - 7 )

‎ㅤ‎ㅤ➝ ( x - 8 )w = ( x - 8 )( x - 7 )

‎ㅤ‎ㅤ➝ w = ( x - 8 )( x - 7 ) / ( x - 7 )

‎ㅤ‎ㅤ➝ w = ( x - 8 )

8 0

2 years ago

Mr. and Mrs. Lopez are putting square tiles on the floor in their bathroom.They can fit 6 rows of 4 tiles in the bathroom.How ma

Trava [24]

They can fit 24 tiles because

6 rows times 4 tiles =24 tiles

6x 4 =24

Find how much it will cost.

24 x 5 = 120

It will cost $120

6 0

4 years ago

Read 2 more answers

Sandi works for Elizabeth Arden Cosmetics and earns $500 per week salary plus 4% commission on sales over $2,000. If Sandi sold

Ainat [17]

To find the amount of money she earned out of the 2733 you must first find what 4% of 2000 is. its 80 which means for every $2000 she sells she earns $80. she sold just over 2 amounts of 2000 therefore
her salary is $609.32

3 0

3 years ago

Read 2 more answers