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3 years ago

. Ms. Johnson owns a cabinet business that installs cabinets in kitchens. Her employees can install 2/3 of a

Mathematics

1 answer:

AnnZ [28]3 years ago

8 0

Answer:

10/3 of a kitchen cabinet

Step-by-step explanation:

To make a full hour, 1/5 would be multiplied by 5- and so would their progress.

2/3 * 5 = 10/3, which is also an improper fraction.

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Circle all the ODD NUMBERS UNDERLINE all the EVEN numbers

natali 33 [55]

You need to add a image

3 0

3 years ago

PLEASE HELP WITH THE FIRST 3 parts

PIT_PIT [208]

Answer:

a) x = -2+√3 and -2-√3

b) x = -1 + 2√3/3 and -1 - 2√3/3

c) x = 3.185 and 0.315

Step-by-step explanation:

To solve the following quadratic equation, we will use the general formula

x = -b±√b²-4ac/2a

a) x²+4x+1 = 0

a = 1, b = 4 and c = 1

Substitute into the formula

x = -4±√4²-4(1)(1)/2(1)

x = -4±√16-4/2

x = -4±√12/2

x = -4±2√3/2

x = (-4+2√3)/2 and (-4-2√3)/2

x = -2+√3 and -2-√3

b) 3x²+6x-1 = 0

a = 3, b = 6 and c = -1

Substitute into the formula

x = -6±√6²-4(3)(-1)/2(3)

x = -6±√36+12/6

x = -6±√48/6

x = -6±4√3/6

x = (-6+4√3)/6 and (-6-4√3)/6

x = -1 + 2√3/3 and -1 - 2√3/3

c) 2x² - 7x + 2 = 0

a = 2, b = -7 and c = 2

x = -(-7)±√(-7)²-4(2)(2)/2(2)

x = 7±√49-16/4

x =7±√33/4

x = 7±5.74/4

x = 7+5.74/4 and 7-5.74/4

x = 12.74/4 and 1.26/4

x = 3.185 and 0.315

4 0

3 years ago

5 to 2 = __ to 4 and also 14 to 21 = __ to 15

nasty-shy [4]

1) Set up proportions for the ratios:

$\frac{5}{2} = \frac{x}{4}$

Cross multiply the fractions:

$2x = 20$

Divide both sides by 2 to get x by itself.

$x = 10$

5 to 2 is equal to 10 to 4.
------------
2) Set up proportions for the ratios:

$\frac{14}{21} = \frac{x}{15}$

Cross multiply the fractions:

$21x = 210$

Divide both sides by 21 to get x by itself:

$x = 10$

14 to 21 is equal to 10 to 15.
------------
OPTIONAL:
To make 2) easier to solve, simplify 14 to 21.

$\frac{14}{21} / \frac{7}{7} = \frac{2}{3}$

Then, continue with the problem as described above:

$\frac{2}{3} = \frac{x}{15}$

$3x = 30$

$x = 10$

8 0

3 years ago

Which equation represents exponential growth?

iogann1982 [59]

The second one is the correct answer .

8 0

3 years ago

I need help with this fast

hodyreva [135]

Answer:

1. positive

2. No

(for number 3, I'm not sure if my answer to it is going to be correct)

Step-by-step explanation:

1. the dots look like they are going up

2. there are no outlying dots that look unusual

4 0

3 years ago