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umka2103 [35]
3 years ago
6

I need help with math!!! time is running out!!! will mark brainliest!!!

Mathematics
1 answer:
Valentin [98]3 years ago
6 0
1.

Answers A. and C.

2.

Answer B.

3.

Answer B.
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Pls help Describe how to find the product of the two terms 3x^2y^5 and 4x^3y^7
zvonat [6]

Answer:

12 x^5y^12

Step-by-step explanation:

3x^2y^5 * 4x^3y^7

Multiply the constants

3*4 = 12

Multiply the x terms

x^2 * x^3

We know a^b* a^c = a^(b+c)

x^(2+3) = x^5

Multiply the y terms

y^6 * y^7 = y&(5+7) = y^12

Put them back together

12 x^5y^12

8 0
3 years ago
Read 2 more answers
Simplify the expression below.<br> –3 X5 X(-9) X (-2)
notka56 [123]

Answer:

- 3 \times 5 \times  - 9 \times  - 2 \\  - 15 \times  + 18 = 3

6 0
3 years ago
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Please help with this question, I need to make sure I'm right. Thanks
Lina20 [59]

an=4n+1

Sum of first 30 terms

a1+a2+.................a30

 Sn=(a1+an)*n/2

a1-----------first terms

an=---------last term-----a30

n= number of terms-----30

 calculation of a1

a1=4n+1=4*1+1=5

 calculation of an

a30=4*30+1=121

 S30=(a1+a30)*30/2

S30=(5+121)*30/2=1890

<span>The sum of first 30 terms is 1890</span>


4 0
3 years ago
What equations are equivalent to 3(5x+4)=12x+18
Vladimir79 [104]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve for x. 4.2 5.3 6.8 8.1
Licemer1 [7]

Answer:

x ≈ 8.1233

Step-by-step explanation:

SOH CAH TOA<em>(tangent = </em><em>opposite/adjacent side</em><em>)</em>

tan (32) = x/13

=> x = tan (32) × 13

=> x ≈ 8.1233

3 0
3 years ago
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