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hram777 [196]
3 years ago
12

Can someone please help me out with these 2 problem thanks

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
3 0
3 \sqrt{-8}  + 4 \sqrt{-50}
= 3i \sqrt{8}  + 4i \sqrt{50}
= 3i \sqrt{4 \times 2}  + 4i \sqrt{25 \times 2}
= 6i \sqrt{2}  + 20i \sqrt{2}
= 26i \sqrt{2}

I think part of the second question is cut off so I can't help but I hope I have helped with the first one.
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A square rug has an area of 81 square feet. What is the length of one side of the rug?
Molodets [167]

Answer:

3

Step-by-step explanation:

3*3*3*3=81

that's my answer

5 0
3 years ago
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I’ll give u a kiss if u help me with this ASAP PLZZZZ with an explanation ;)
olganol [36]

Answer:

<em>The answer is 0</em>

<em>So I think no solutions</em>

Step-by-step explanation:

You gotta get each equation into slope-intercept form, nd when u do that 9x - 3y = 6 turns into y = 3x - 2, nd 5y = 15x + 10 turns into y = 3x + 2. Add the equations together, nd get 0.

6 0
3 years ago
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Why is 5x4 greater than 5x1/4
Mashcka [7]
<span>5x4 = 20
</span><span>5x1/4 = 5/4 or = 1.25

so 20 > 1.25 then </span><span>5x4 is greater than 5x1/4</span>
4 0
3 years ago
Read 2 more answers
A STORY OF UNITS
Aleks04 [339]

Answer:

<em>$40 </em>will be the total cost of the ribbon.

Step-by-step explanation:

To find the cost of ribbon to be put on the edges of rectangular banner, we need to:

1. Find the perimeter of the rectangle.

2. Multiply the perimeter with the per foot cost to find the total cost.

Let us find the perimeter first:

Perimeter of a rectangle is given as:

P = 2 \times \text{(length+width)}

Here, the dimensions of rectangle are 4ft by 6ft.

So, perimeter = 2 \times (4+6) \Rightarrow 20\ ft

It is given that per foot cost is $2.

Total cost of the ribbon = 2 \times 20 \Rightarrow $40

<em>$40 </em>will be the total cost of the ribbon.

7 0
4 years ago
The area of a rectangular garden in square feet can be represented by 22 - 102 +21. The length is 2 - 7 feet. You have been hire
Anettt [7]

The area of a rectangular garden in square feet can be represented by z² - 10z +21. The length is z - 7 feet. You have been hired to fertilize the

garden. Recall that the area of the garden is z² - 10z +21. If z = 20 and the fertilizer costs $0.27 per square foot, how much it cost to fertilize

the garden?

Answer:

$ 59.67

Step-by-step explanation:

The area of a rectangular garden in square feet can be represented by z² - 10z +21 square feet

If z = 20

Therefore:

The area of the rectangular garden is:

20² - 10 × 20 + 21

400 - 200 + 21

= 221 square feet

The fertilizer costs $0.27 per square foot, how much it cost to fertilize

the garden?

The cost of fertilize the garden is calculated as:

1 square feet = $0.27

221 square feet = x

Cross Multiply

221 square feet × $0.27

=$ 59.67

4 0
3 years ago
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