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3 years ago

11

I need the work shown not just the answers please

1 answer:

Yuliya22 [10]3 years ago

3 0

1.) To find the surface area, we want to find the area of each side, then add them all up together:
Area of base=lwA=(5)(5)A=25 cm²
Area of triangle=1/2bhA=(1/2)(5)(12.5)A=31.25 cm²
Since the 4 triangles have the same area, we can multiply the area we found by 4 and then add the area of the square:
SA=(4)(31.25) + 25SA=125+25SA=150 cm²

2.) <span>To find the volume use the formula:

V=(1/3)lwh
V=(1/3)(5)(5)(12.5)
V=104.167 cm^3</span>

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0,5.<img src="https://tex.z-dn.net/?f=%5Csqrt%7B0%2C09%7D" id="TexFormula1" title="\sqrt{0,09}" alt="\sqrt{0,09}" align="absmidd

Komok [63]

Answer:

0.21

Step-by-step explanation:

The given expression is :

$0.5\times \sqrt{0.09}-2\sqrt{0.05}+\sqrt \frac{1}{4}$

We need to solve it.

We know that,

$\sqrt{0.09}=0.3\ and\ \sqrt{0.05}=0.223$

So,

$0.5\times \sqrt{0.09}-2\sqrt{0.05}+\sqrt \frac{1}{4}=0.5\times 0.3-2\times 0.22+0.5\\\\=0.21$

or

$=\dfrac{21}{100}$

So, the value of the given expression is equal to 0.21.

8 0

3 years ago

Factor of 3x-3a+xy-ay

Pachacha [2.7K]

Answer:

(3 - y) & (x - a) are the factors

Step-by-step explanation:

3x-3a+xy-ay

=> 3x - xy - 3a - ay

=> x(3 - y) - a(3 - y)

=> (3 - y)(x - a)

8 0

3 years ago

Read 2 more answers

2/3 of the people in the group came in blue cars and 1/8 of them came in red cars they were 48 people in the group so how many p

vodka [1.7K]

Answer:

32 people came in blue cars and 6 people came in red cars

Step-by-step explanation:

Technically, all 48 people came in red or blue cars, but I'm assuming that's not what the question is asking.

To find how many people came in blue cars, we do 2/3*48 which is equal to 32 people.

To find how many people came in red cars, we do 1/8*48 which is equal to 6 people.

7 0

4 years ago

Read 2 more answers

X + 6 = 2x + 2<br> And can you please tell me the steps. Thank you so much

PolarNik [594]

X=4 that is the answer

7 0

4 years ago

Read 2 more answers

Is the opposite of a rational number also a rational? Explain. Please do not use google to answer.

Sunny_sXe [5.5K]

opposite means the sign changes (from positive to negative or vice versa)

since a rational number includes both positives and negatives, then the opposite of a rational is also a rational.

For example: $\frac{3}{5}$ is a rational number. Its opposite is $-\frac{3}{5}$ , which is also a rational number.

Hope this helped!

Answer: YES

7 0

3 years ago