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ExtremeBDS [4]
3 years ago
9

4 more to go please help me pass

Mathematics
1 answer:
finlep [7]3 years ago
6 0
(5x^7y^2)(-4x^4y^5)=-20x^a y^b 
<span>-20 x^11 y^7 = -20 x^a y^b </span>

<span>a = 11, b = 7 thus a: is you answer</span>
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9x - y = 15 2x + 8y = 28
faust18 [17]
9x - y = 15
2x + 8y = 28

Use the substitution method.
Solve for y in the first equation.

9x - y = 15
-y = 15 - 9x
y = -15 + 9x

Now plug in y into the second equation.
2x + 8(-15 + 9x) = 28
2x - 120 + 72x = 28
74x - 120 = 28
74x = 148
x = 2

Plug x back into the rewritten first equation.
y = -15 + 9(2)
y = -15 + 18
y = 3

x = 2, y = 3
5 0
3 years ago
Estimate.<br> 36 x 92 ~ ?
Jet001 [13]

Answer:

3,312

lets be real who arctually looks at the step by step just use a calculator for this one

7 0
3 years ago
13 1/10-7 9/10<br><br> i need help
a_sh-v [17]

Answer:

52/ 10 = 5 2/10 or 5 1/5

Step-by-step explanation:

first turn the mixed fractions into improper fraction

13 1/10= 131/10

7 9/10= 79/10

since the two fractions already have a common denominator just subtract

131 - 79 = 52

52/ 10 = 5 2/10 or 5 1/5

4 0
3 years ago
Read 2 more answers
Consider the Triangle Sum Theorem in relation to a right triangle. What conjecture can you make about the two acute angles of a
Anon25 [30]
They must be complementary. these 2 angles MUST equal 90 degrees because there is a right angle that is 90 degrees in the triangle already and all triangles have an angle sum of 180 degrees. the answer is complementary
7 0
2 years ago
Can u guys help me please ?‍♀️
Over [174]

Answer:

r = 8 ft

Step-by-step explanation:

The formula for circumference of a circle is

C = 2 * pi *r

We know the circumference is 16 pi

16 pi = 2 pi r

Divide each side by 2pi

16 pi /2 pi = 2 pi r / (2pi)

8 = r

7 0
3 years ago
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