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2 years ago

Please help with math show your work

Mathematics

2 answers:

zzz [600]2 years ago

5 0

(5)(−3)−(4)(−3)−3−(3)(−3)=−15−(4)(−3)−3−(3)(−3)=−15−(−12)−3−(3)(−3)=−3−3−(3)(−3)=−6−(3)(−3)=−6−(−9)=3

Katarina [22]2 years ago

4 0

The answer is six but i entered this in calculator so no work

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Directions: Find the Surface Area

kenny6666 [7]

Answer:

Surface area = 92 ft²

Step-by-step explanation:

Formula to find the surface area of a rectangular prism is,

Surface area = 2(lb + bh + hl)

Here, l = length of the prism

b = width of the prism

h = height of the prism

By substituting the measures of the sides given in the picture,

Surface area = 2(2×3 + 3×8 + 8×2)

= 2(6 + 24 + 16)

= 2(46)

= 92 square feet

Therefore, surface area of the given rectangular prism is 92 ft².

4 0

2 years ago

ii. A machine is sold for 7,000/-. The gross loss is 20% of the cost. What are the cost and gross loss?

aleksley [76]

Given:

Selling price of a machine = 7000/-

Gross loss = 20%.

To find:

The cost and gross loss.

Solution:

Let x be the cost of machine.

According to the question,

$x-20\%\text{ of }x=7000$

$x-\dfrac{20}{100}x=7000$

$x-0.2x=7000$

$0.8x=7000$

Divide both sides by 0.8.

$x=\dfrac{7000}{0.8}$

$x=8750$

So, the cost of the machine is 8750/-.

Now,

$\text{Gross Loss}=\text{Cost}-\text{Selling price}$

$\text{Gross Loss}=8750-7000$

$\text{Gross Loss}=1750$

Therefore, the gross loss is 1750/-.

8 0

2 years ago

Please help me with this quadratic equation question! I always give out 5 stars, thanks and brainliest to people that help me wi

ss7ja [257]

Answer:

$p=25,\\q=12$

Step-by-step explanation:

In $(ax+b)(cx+d)=acx^2+bcx+dax+bd$ , notice the third term of the quadratic in standard form is formed entirely by $b\cdot d$ .

Therefore, in $12x^2 - 13x - 7175 = (x-p) (qx + 287)$ :

$-p\cdot287=-7175,\\-p=\frac{-7175}{287},\\p=\fbox{$25$}$ .

Now that we found $p$ , we must find $q$ . The first term of the quadratic in standard form is formed entirely by $ax\cdot cx$ . Therefore:

$1\cdot q=12, \\q=\fbox{$12$}$ .

3 0

2 years ago

If Clare earns $75 the next week from delivering newspapers and deposits it in her account, what will her account balance be the

Zarrin [17]

Answer:

Step-by-step explanation:

because 75 - 50 = 25

7 0

2 years ago

Read 2 more answers

Is 45 a prime or composite number

Ilia_Sergeevich [38]

Answer:

45 is a composite number because, it can be multiplied by 1,5,9,15 and 45.

Step-by-step explanation:

5 0

3 years ago