Dr. Maria Espinoza, a biologist, is carrying out research in the tropical rain forest of Brazil. We would expect Dr. Espinoza to be

Answer:

C

Step-by-step explanation:

i dont really know anything about angles but it looks like the 3x is the exact same angle as 30 degrees on the other side of it

3x=30

x=10

Answer:

x = 1, x = -1

Step-by-step explanation:

-x² = -1

x² = 1

x = ±1

Answer:

41 purple marbles

Step-by-step explanation:

x= amount of purple marbles

3x+x=164

4x=164

x=164/4=41

Answer:

its b

Step-by-step explanation:

got it right on edge

The volume of the metal in the cylinderical pipe given the dimensions of the larger and smaller cylinders is 271.30 mm³.

A cylinder is a three-dimensional object. It is a prism with a circular base.

Volume of a cylinder = nr^2h

Where:

The volume of the metal in the cylinderical pipe = 3.14 x 10 x [(8.4/2)² - 6/2)²] = 271.30 mm³

To learn more about to determine the volume of a cylinder, check: https://brainly.com/question/9624219

#SPJ2

Answer:

2.99 cm

Step-by-step explanation:

V= [tex]\frac{4}{3}[/tex](pi)(r^3)=113.04cm^3

113.04/ [tex]\frac{4}{3}[/tex](pi) = r^3 = 26.99

r=[tex]\sqrt[3]{26.99}[/tex] = 2.99cm

Answer:

Step-by-step explanation:

Answer is 3

You don't need help my dude, you already have all of the right answer. Good job!!!

Answer:

42  .. isn't that the answer to everything?   :P

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

2.60

Step-by-step explanation:

z-score is the difference between the score and mean, divided by the standard deviation.

[tex]z = \frac{x - \mu}{\sigma}[/tex]

[tex]z = \frac{91-77.5}{5.2} = \frac{13.5}{5.2} \approx 2.596[/tex]

So 2.6 is an answer close enough.

Answer:

0.15866

Step-by-step explanation:

The term at most 9 means = less than or equal to 9

This represented as x ≤ 9

We solve using the z score formula

z = (x-μ)/σ, where

x is the raw score = ≤ 9

μ is the population mean = 10

σ is the population standard deviation = 1

z = 9 - 10/1

z = -1

Probability value from Z-Table:

P(x ≤ 9) = 0.15866

Therefore, the probability of selecting a number that is at most 9 is 0.15866

==========================================================

Explanation:

Let's use (x,y) notation to denote the results of the two dice. So x is the first dice value and y is the second. Something like (2,1) means we rolled a '2' on the first die, and a '1' on the second die. The order matters.

We want both x and y to be odd, and we also want x+y < 5.

Here are all of the ways to fit those conditions:

There are 3 ways to achieve this goal out of 6*6 = 36 ways to roll two dice without any restriction. The probability we're aiming for is 3/36 = 1/12

Side note: 1/12 = 0.0833 = 8.33% approximately.

Answer:

1. 192 or 12^4       13. 4c^7 d^13

2. 8x^6                 14. 16f^10 g^22

3. x^8                    15. x^4y^4

4. 4x^5                  16. xy

5. 6^2                    17. x^12/64y^9

6. 1/x^3                  18. x^8/256y^16

7. 1                         19. 1/y^7

8. -1                        20. 1/49

9. y^12                    21. x^5

10. x^8y^4              22. 16

11. 3x^3                   23. x^4

12. 2x^3                  24. 1/x^6

                               25. x^2

                               26. 1/j^3

Hope this helps! :)

Answer:

2.6 in^2

Step-by-step explanation:

A=a+b

2h=0.6+2

2·2=2.6

Answer: 2.6

Step-by-step explanation:

A= h(b1+b2)

Answer and explanation:

To solve the inequality x-2/x + x+2/x+3 < 3/2 we have to first simplify the expressions on the left side of the inequality sign. And so we multiply x by the expressions on the left side to eliminate fractions:

=x(x-2/x)+x(x+2/x)+x(3)< 3/2

=x-2+x+2+3x < 3/2

=5x < 3/2

x < 3/2/5

x < 3/2×5/1

x < 15/2

x < 7 1/2 or 7. 5

Answer:

$40

Step-by-step explanation:

convert gallons to quart

1 gallon = 4 quarts

5 x 4 = 20 quarts

total cost = 20 x 2 = $40

Answer:

2/3 divided by 4/5 = 5/6

Step-by-step explanation:

Arianna working:

2/3 divided by 4/5

= 2/3 x 4/5

= 8/15

Correct working:

2/3 divided by 4/5

= 2/3 ÷ 4/5

Multiply 2/3 by the reciprocal of 4/5

= 2/3 × 5/4

= (2*5) / (3*4)

= 10/12

= 5/6

2/3 divided by 4/5 = 5/6

Arianna's mistake was she didn't multiply by the reciprocal of 4/5

Answer:

x=0

y=7

Step-by-step explanation:

Divide 6x-4y=-28 by -2..... -3x+2y=14

3x+5y=35

-3x+2y=14

--------------

7y=49

y=7

6x-4*7=-28

x=0

Answer:

33 degrees Fahrenheit.

Step-by-step explanation:

If the temperature was 48 degrees, and it dropped 15, that means the initial temperature was subtracted by 15.

48 - 15 = 33.

Answer:

33°F

Step-by-step explanation:

The initial temperature was 48°F. Then, it dropped by 15°.

I am assuming that both values are given in the same unit.

48 - 15 = 33

The temperature should be 33 degrees now.

Hope this helps.

Answer:

$17.64

Step-by-step explanation:

First multiply 2.94 and 1.5 to find the price for 1.5 gallon os milk.

2.94 x 1.5 = 4.41

Then you multpily by 4 to see the balance after 4 weeks

4.41 x 4 = 17.64

Answer:

The answer is 8.66054037 as a decimal. It's asking for a root though.

Step-by-step explanation:

Answer:

t is less  than or equal to 19

Step-by-step explanation:

t-7<12

+7

t is less than or equal to 19

Answer: It is 23,000 Millimeters

Step-by-step explanation:

23 Meters =  23,000 Millimeters

Answer: maybe 2mm?

Step-by-step explanation:

Answer:

a)47/8

b)53/12

c)31/6

d)53/6

e)68/5

f)64/9

Step-by-step explanation:

Answer:

First add the fraction then the whole number

Step-by-step explanation:

a)47/8

b)53/12

c)31/6

d)53/6

e)68/5

f)64/9

Answer:

it's 128 x 72 =9,216

Step-by-step explanation:

N = 560

Answer:

134.1 ft²

Step-by-step explanation:

Fine the area of the square first, then subtract the area of the circle to find the area of the shaded part.

The area of the square

= 25²

= 625 ft²

The radius of the circle

= 25 ÷ 2

= 12.5 ft

The area of the circle

= π × 12.5²

= 490.87385...

= 490.9 ft² (rounded up to the nearest tenth)

The area of the shaded part

= 625 - 490.9

= 134.1 ft²

Answer:

What kind of Equation?

Quadratic Equation.

Linear Equation.

Radical Equation.

Exponential Equation.

Rational Equation.

Step-by-step explanation:

For #7 and #8, they have given you the answer of the product but without decimals.

You can just add up all the decimal places for this kind of multiplication.

For example, 6.543 and 2.6 have 4 decimal places in total (underlined), so just count four: 17.0118.

Answer:

option d

Step-by-step explanation:

First we find the probability of getting green, then we can subtract the result from 1 to find the probability of not getting the green crayon

P( green )    

[tex]\frac{12}{45+12+25+8} \\= \frac{2}{15}[/tex]

P '(green) = 1 - 2/15

= 13/15