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Leno4ka [110]
3 years ago
8

James buys sand to fill a sandbox that is shaped like a rectangular prism. The sandbox has a square base with a side length of 0

.5 yards and a height of 0.4 yards. The store sells sand for $34 per cubic yard.
How much does James spend on sand?

Mathematics
1 answer:
masha68 [24]3 years ago
5 0
To answer this question you will need to find the total volume of the sandbox. You would do this by multiplying the 0.5 yards x 0.5 yards x 0.4 yards. This would be the length times the width times the height. The answer is 0.1 yd.³. You would then take this part of a cubic yard multiplied by $34.your answer would be $3.40.

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54. The triangles in the diagram below are congruent.
Reika [66]

Answer:

Angle N should be 64

Step-by-step explanation:

A triangle adds up to 180. So triangle JKL already has 60 towards 180. Triangle ONM already has 56 towards 180. So you have to find the other value needed in order to make 180. 56+60= 116 so we need to find the other angle to make 180. To do so just subtract 180-116 and that gives tou the answer 64 so that would be Angle N

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3 years ago
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Vladimir [108]

Answer  c would be the answer hope it helps

Step-by-step ex planation:

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3 years ago
An object is 3.6 m from the pinhole. Its image is 4.2 cm from the opposite side of the pinhole. The height of the image is 0.8 c
madreJ [45]

Answer:

Height of the object is 68.6 cm.

Step-by-step explanation:

The height of the object can be determined by:

\frac{object distance from pinhole}{image distance from pinhole} = \frac{object height}{image height}

From the given question;

object distance from pinhole = 3.6 m = 360 cm

image distance from pinhole = 4.2 cm

height of image = 0.8 cm

So that;

\frac{360}{4.2} = \frac{object height}{0.8}

⇒ object height = \frac{360*0.8}{4.2}

                           = \frac{288}{4.2}

                           = 68.571

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Thus, the height of the object is 68.6 cm.

5 0
3 years ago
Which functions domain consists of all real numbers except -2?
Eddi Din [679]

Answer:

option (a) f(x)= 1/x+2

Step-by-step explanation:

(a) f(x) = 1/ x+2

To find the restriction for domain , we set the denominator =0  and solve for x

x+2 =0, so x=-2

When x=-2  then denominator becomes 0 that is undefined.

So, domain is all real numbers except -2

(b) f(x)= 2x

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

(c) f(x) = 2x-2

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

f(x) = 1/ sqrt(x+2)

if we have square root in the denominator then we set the denominator >0 and solve for x. because square root of negative values are undefined

x+2>0, x>-2

Hence domain is all real numbers that are greater than -2

8 0
3 years ago
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Answer:

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line RPN = 180 = 4y - 10 + 90 + y

180 - 90 + 10= 5y

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