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PtichkaEL [24]
2 years ago
7

Which expression is equivalent to 12x + 20y?

Mathematics
1 answer:
MariettaO [177]2 years ago
6 0
15x+20y+5z I’m pretty sure
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A rectangle has an area of 100 square centimeters. The base of the rectangle is 25 centimeters. What is the height of the rectan
enyata [817]
You find area by multiplying base and height.
The formula is  A=bh
so 100=25h
25 times 4 is 100
100=25*4

4cm is your answer
5 0
3 years ago
Read 2 more answers
The answer to c plz
NikAS [45]

Answer:

≈ 30.63 cm²

Step-by-step explanation:

The shaded area is calculated by subtracting the area of the inner circle from the area of the outer circle.

outer circle has radius = 8 ÷ 2 = 4 and inner circle has radius = 5 ÷ 2 = 2.5

shaded area = πr₁² - πr₂² (r₁ is outer and r₂ is inner )

A = π (4² - 2.5²)

   = π(16 - 6.25) = 9.75π ≈ 30.63 cm²

           

5 0
3 years ago
ASAP HELP PLZZZZ What is the image of the point (9, -2) after a rotation of o counter-clockwise about the origin?
Zolol [24]

Answer:

It should be (2,9).

Step-by-step explanation:

If you rotate it counter clockwise, the x value and y value switch numbers and they will both become postive.

4 0
3 years ago
Read 2 more answers
Solve for x thanks .
OleMash [197]

Answer:

x = 3.87

Step-by-step explanation:

Using the right angle altitude theorem, we know that all three triangles are congruent, so the lengths of corresponding sides of the triangles are in proportion..

AD/DB = DB/DC

15/x = x/1

x² = 15

x = √15

x = 3.87

8 0
2 years ago
Stacie is choosing between two careers. Working for company A, Stacie will make $45,000 the first year and will receive an addit
fomenos

The expression in company B represents that is is in arithmetic progression where first term is 42000 and common difference is 1800 . So we have to use the formula of sum of n terms which is

S=\frac{n}{2}(2a +(n-1)d)

Where a is the first term, n is the nth term, d is the common difference

On substituting there values,we will get

S =\frac{30}{2}(2*42000+(30-1)1800)

= 15(84000+52200) = 15*136200 =2043000

And for company A, it is

S= \frac{30}{2}(2*45000+(30-1)1500 ) = 15(90000+43500)=2002500

Difference between them =2043000-2002500= 40500

So the correct option is the second option .

6 0
3 years ago
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