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3 years ago

CAN SOMEONE HELP ME PLEASE ASAP!

Mathematics

1 answer:

mariarad [96]3 years ago

4 0

Answer:

880 feet per hour.

Step-by-step explanation:

26 inches to foot = 2.2

9 seconds to hour = 0.0025

2.2/0.0025 = 880 feet per hour.

If you need any more help please let me know and i will make a video for you.

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I’ll give brainliest

kogti [31]

Answer:

y = 1.19x

Step-by-step explanation:

y is the dependent variable (total cost)

x is the independent variable (number of pounds)

3 0

3 years ago

Read 2 more answers

HELPPP <br><br>I also have to round it yo the nearest tenth if possible

Nikitich [7]

Answer:

20 feet squared

Step-by-step explanation:

Dividing figure into a square and a triangle:

Area of square= 4x4=16 ft^2

Area of triangle=bxh/2=(2x4)/2=4 ft^2

Area of figure=16+4=20 ft^2

8 0

3 years ago

Help please <br><br> How are the properties of exponents used to rewrite expressions?

mina [271]

Answer: The five exponent properties are

Product of Powers: When you are multiplying like terms with exponents, use the product of powers rule as a shortcut to finding the answer. It states that when you are multiplying two terms that have the same base, just add their exponents to find your answer.

Power to a Power: When raising a power to a power in an exponential expression, you find the new power by multiplying the two powers together. ... Then multiply the two expressions together. You get to see multiplying exponents (raising a power to a power) and adding exponents (multiplying same bases).

Quotient of Powers: When you are dividing like terms with exponents, use the Quotient of Powers Rule to simplify the problem. This rule states that when you are dividing terms that have the same base, just subtract their exponents to find your answer. The key is to only subtract those exponents whose bases are the same.

Power of a Product: The Power of a Product rule is another way to simplify exponents. When you have a number or variable raised to a power, it is called the base, while the superscript number, or the number after the '^' mark, is called the exponent or power.

Power of a Quotient: The Power of a Quotient rule is another way you can simplify an algebraic expression with exponents. When you have a number or variable raised to a power, the number (or variable) is called the base, while the superscript number is called the exponent or power

You can use these any way you want to rewrite an equation.

Hope this helped

Step-by-step explanation:

5 0

3 years ago

Many companies "grade on a bell curve" to compare the performance of their managers and professional workers. This forces the us

GarryVolchara [31]

Answer:

option A

Step-by-step explanation:

given,

10% A grades 80% B grades 10% C grades

This year, managers with scores less than 35 received C's and those with scores above 425 received A's.

The mean has to be middle of two corresponding cutoff value

$\mu = \dfrac{35+425}{2}$

μ = 230

Cutoff Off C grade corresponds with the area of 0.10 is table A.

corresponding z- score according to Table A

Z = -1.28

now, standard deviation

$z = \dfrac{x-\mu}{\sigma}$

$\sigma= \dfrac{x-\mu}{z}$

$\sigma= \dfrac{35-230}{-1.28}$

σ = 152.3

Correct answer is option A

4 0

3 years ago

Michel is drawing a square with one vertex on the origin (-3, 5) and a perimeter of 20. Select all the coordinates of the missin

Lynna [10]

Answer:

The co-ordinates are O(0,0) A(-3,5) B(5,3) and C (2.2,8)

Step-by-step explanation:

Given:

One vertex of square on origin and other end at (-3,5)

And perimeter of square=20

To Find:

Select all the coordinates of the missing vertices.

Solution:

Given co-ordinate forms one length of square

(Refer the attachment)

and we know that all sides of square are equal and makes 90 degree angle

So,

Perimeter=4*side of square

Here Side of square= Distance from origin to (-3,5)

Using distance formula=Sqrt[(0+3)^2+(0-5)^2]

=Sqrt(9+25)

=Sqrt(34)

=5.831 units

So the length of side=5.831 units

So from (-3,5) to other co-ordinate distance will remain the same i.e. 5.831

Using Geometry, as a symmetry length will remain same for square

So, other co-ordinate will be (5,3) in 1st quadrant.

Now drawing the length=5.831 at 90 angle from co-ordinate (-3,5) and (5,3)

we get the following point as ,

Point will represent the diagonal for the square ,

Distance of diagonal =length*sqrt(2)=5.831*1.414=8.2 units......equation(1)

The point is obtaining x=2.2 and y=8

So to check distance of diagonal from origin it should equal to length of diagonal.

so Distance formula from origin to (2.2,8) is

=Sqrt[(0-2.2)^2+(0-8)^2]

=Sqrt[(68.84)]

=8.2 .........Equation(2)

Hence comparing equation(1) and (2) we get ,

That the Co-ordinate for square are correct as follows, named as OABC

O(0,0) A(-3,5) B(5,3) and C (2.2,8)

8 0

3 years ago