MATHEMATICS HIGH SCHOOL

What are the square roots of 81? I

Answers

Answer 1

Answer:

Step-by-step explanation:

Square root is to multiply same number to get high number.

Example: square root of 81.

9 x 9 = 81

Related Questions

Need help with this
1. Your grandmother is in the hospital and is put on a liquid diet. After examining her chart, a mistake is found stating that her weight is 500 kg. What is the equivalent weight in pounds?
Is 69,370 divisible by 8,4,6, or 10
Please help it's emergency
I did too know 5678 and 9

In a triangle, the sides measure 3,5, and 7 what is the measure, in degrees of the largest angle?

Answers

$The\ largest\ angle\ is\ opposite\ the\ largest\ side.\nlook\ at\ the\ picture.\n\nLaw\ of\ cosines:\n\nc^2=a^2+b^2-2abcos\alpha\n\na=3;\ b=5;\ c=7\n\nsubstitute:$

$7^2=3^2+5^2-2\cdot3\cdot5\cdot cos\alpha\n49=9+25-30cos\alpha\n49=34-30cos\alpha\n30cos\alpha=34-49\n30cos\alpha=-15\ \ \ \ /:30\ncos\alpha=-(15)/(30)\n\ncos\alpha=-(1)/(2)\n\n\alpha=120^o$

The equations of four lines are given. Identify which lines are perpendicular. Help please!!

Answers

The answer would be B lines 1 and 3, lines 2 and 4 are perpendicular.

For a quick fyi you can go to desmos.com/calculator for graphing lines

Determine two pairs of polar coordinates for the point (5, 5) with 0Á _ _ < 360Á

Answers

the polar coordinates are given by M(x, y), such tha x=rcos(teta), and y=rsin(teta), it was given M(5,5), so 5=rcos(teta) and 5=rsin(teta), the ratio gives us 5/5= cotan (teta), 1= cotan (teta), implies 1= tan(teta), so teta = Pi/4, let's find r
5=rsin(Pi/4)=r . sqrt(2)/2, so r =10/sqrt(2)=10sqrt(2)
finally the polar coordinates are (r, teta) = (10sqrt(2), Pi/4)

Susie is solving the quadratic

Answers

Answer:

Option (D)

Step-by-step explanation:

Standard equation of a quadratic function is,

ax² + bx + c

Comparing this function with the given quadratic function,

f(x) = 2x² - 4x - 3

a = 2, b = -4 and c = -3

By using quadratic formula to get the value of x,

x = $(-b\pm √(b^2-4ac) )/(2a)$

= $(-(-4)\pm √((-4)^2-4(2)(-3)) )/(2(2))$

= $(4\pm√(16+24))/(4)$

= $(-4\pm √(40))/(4)$

= $(-2\pm √(10))/(2)$

Therefore, Susie made a mistake in step IV.

Option (D) is the answer.

Sadie weights out 690 grams of flour. Using the rate from Q4, how many cups did she weigh?

Answers

The Sadie weights out 690 grams of flour the rate from Q4 5.75 cups of flour.

To convert the weight of flour from grams to cups, to know the conversion rate between grams and cups for flour. The conversion rate can vary depending on the density and type of flour being used.

Assuming the conversion rate provided in Q4 is for the specific type of flour Sadie is using, use the rate to find the number of cups.

Let's assume the rate given in Q4 is: 120 grams of flour = 1 cup of flour.

Now, we can calculate the number of cups of flour Sadie weighed:

Number of cups = Weight of flour in grams / Conversion rate

Number of cups = 690 grams / 120 grams per cup

Number of cups ≈ 5.75 cups

To know more about rate here

brainly.com/question/25565101

#SPJ2

The question is incomplete, the complete question is:

Sadie Weighs Out 690 Grams Of Flour. How Many Cups Did She Weigh? Show The Division That Leads To Your Decimal Answer.

Answer:

172.5 cups

Step-by-step explanation:

Q4 = 690

Q = $(690)/(4)$ = 172.5

∴ She weighed 172.5 cups

A ladder leans against the side of a house. The angle of elevation of the ladder is 66 degrees when the bottom of the ladder is 16ft from the side of the house. Find the length of the ladder. Round your answer to the nearest tenth.