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Assoli18 [71]
2 years ago
12

A=5 and b=-5 , 2ab-a^(2)

Mathematics
1 answer:
luda_lava [24]2 years ago
7 0

Answer:

Step-by-step explanation:

2(5)(-5)-(5)^2

=−75

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There is a 4-foot fence that surrounds your backyard. The fence casts a shadow that is 5 feet long. If you are 6 feet tall and s
Strike441 [17]
My shadow would be 7 feet tall.

Since I am standing next to the fence, then whatever difference its actual height and its shadow has, will be the same difference of my shadow to my actual height.

fence: Actual height - 4 ft ; Shadow height - 5 ft; difference - 1 ft
me    : Actual height - 6 ft : Shadow height - ?   ; difference - 1ft

Shadow Height - Actual Height = 1 ft
Sh - 6ft = 1ft
Sh = 1ft + 6ft
Sh = 7ft
3 0
3 years ago
Write the slope intercept form of the equation with slope 8 and y intercept (0,7)
Elanso [62]

Answer:

y=8x+7

Step-by-step explanation:

Use the form y=mx+b

M= the slope

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y=8x+?

Since the y coordinate of (0,7) is 7

b=7

So y=8x+7

4 0
3 years ago
Can you please show work​
fgiga [73]

Answer:

A) 3.44 ft²

Step-by-step explanation:

before cutouts, the area was 4 x 4 = 16 ft²

the circles have a diameter of 2 ft each, and a radius of 1 ft

each circle has an area pf (3.14)(1²) = 3.14 ft²

3.14 x 4 = 12.56 ft²

16 - 12.56 = 3.44 ft² left

3 0
2 years ago
Eduardo plays baseball. This season he has been at bat 20 times. He got a hit 12 of those times. Based on this information, how
Tanzania [10]

Answer:

6

Step-by-step explanation:

divide 20 by 2

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3 0
2 years ago
What property would you use first to solve 1/2x-6=10
NISA [10]

I don't know what you mean by property. Do you mean like, commutative, distributive, etc?

but, if this is what you mean:

to solve this:

The operation here is subtraction. Do the inverse. So, add 6 to both sides of the equation

10 + 6 = 16

1/2x - 6 + 6 = 1/2x. (the 6 cancels out)

1/2x = 16

Now, I'm going to assume 1/2 is supposed to be a fraction (not division). So, 1/2 is right next to x which represents multiplication, so do the opposite which is division.

16 divided by 1/2 = 32

1/2x divided by 1/2 = x

x = 32.

(:

6 0
3 years ago
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