3 years ago

Please answer questions 3 and 4 :))

Mathematics

1 answer:

Gnoma [55]3 years ago

6 0

1.) D
2.) A................

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What is the answer to this equation 2/3x +7= 5

nadezda [96]

Answer:

x = -3

Step-by-step explanation:

$\frac{2}{3} x + 7 = 5\\\frac{2}{3} x = 5 - 7\\\frac{2}{3} x = -2\\x = -2 / \frac{2}{3}\\x = -2 * \frac{3}{2}\\x = -6/2\\x = -3$

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4 years ago

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You work for a horse farrier. You take a random sample of 75 Quarter Horses and determine that their mean height is 15.2 hands.

Evgesh-ka [11]

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B) You conclude that the mean height of all Quarter Horses is close to 15.2 hands

Step-by-step explanation:

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Jose is mailing a package shaped like the rectangular prism shown in the figure. Use a net to find the surface area of the packa

pochemuha

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222cm

Step-by-step explanation:

8*7.5*2=120

3.4*7.5*4=102

222cm

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3 years ago

As James bought his textbooks for classes one semester, he estimated the cost to the nearest ten dollars. He knew he could cover

TEA [102]

Answer:

$310

Step-by-step explanation:

The first step is to add the costs of the textbook together :

$68.41 + $105.35 + $72.49 + $59.91 = $306.16

In order to round off to the nearest ten dollars, look at the units figure, if the number is greater or equal to 5, add 1 to the ten figure. If this is not the case, add zero. Replace the unit digit with zero

The unit digit is greater than 6, so 1 is added to the tens digit. The amount becomes $310

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3 years ago

HELP QUICK ILL GIVE BRAINLIEST!!!!

gulaghasi [49]

Answer:

Step-by-step explanation:

a) circumference = diameter*pi

so, pi in circle A =25.12/8=3.14

pi in circle B = 9.42/3 =3.14

b) area of the circle =(diameter/2)^2*pi

so pi in circle A = 50.24/(8/2)^2=3.14

pi in circle B = 3.14

C) both the value of circle A and B are equivalent

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3 years ago