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elena-s [515]
3 years ago
12

Help please asap

Mathematics
2 answers:
Yuri [45]3 years ago
7 0

Answer:

Jodi and Mariah are sisters. Jodi is three years older than Mariah. Using one variable, write an expression to represent the sum of their ages. Make sure to explain what your variable represents.

(3+x)+x

Step-by-step explanation:

x=Mariah

lapo4ka [179]3 years ago
3 0

Answer

x + (3 + x)

Step-by-step explanation:

Let Mariah's age be x, if so since Jodi is 3 years older than Mariah, then Jodi's age will be 3 + x

Then the sum of their ages will be x + (3 + x)

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I would put 2 as the answer
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4 years ago
X = <br><br> y = <br><br> m ∠ H = <br><br> m ∠ G =
Lorico [155]

Answer:

x=53

y=26

H=106

G=93

Step-by-step explanation:

By the inscribed quadrilateral conjecture:

2x+(x+21)=180\\(3y+9)+(4y-11)=180\\3x+21=180\\3x=159\\x=53\\7y-2=180\\7y=182\\y=26\\H=2(53)=106\\G=(4(26)-11)=104-11=93

Hope this helps!

4 0
4 years ago
In the equation (x^2+y)^5, what is the coefficient of the term x^4y^3? what is the coefficient of the same term in the expansion
lys-0071 [83]

\displaystyle&#10;(x+y)^n=\sum_{k=0}^n\binom{n}{k}x^{n-k}y^k

<em>-------------------------------------------------------------</em>


\displaystyle&#10;(x^2+y)^n=\sum_{k=0}^n\binom{n}{k}x^{2n-2k}y^k\\&#10;n=5\\&#10;k=3\\\\\binom{5}{3}=\dfrac{5!}{3!2!}=\dfrac{4\cdor5}{2}=10

<u>It's 10.</u>

----------------------------------------------------

\displaystyle&#10;(3x^2+y)^n=\sum_{k=0}^n\binom{n}{k}(3x)^{2n-2k}y^k=\sum_{k=0}^n\binom{n}{k}\cdot 3^{2n-2k}\cdot x^{2n-2k}y^k\\\\&#10;n=5\\&#10;k=4\\\\&#10;\binom{5}{3}\cdot3^{2\cdot5-2\cdot4}=10\cdot3^{2}=10\cdot9=90

<u>It's 90</u>

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4 years ago
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Tpy6a [65]

The answer is 4 hours and 49 minutes HERE IS MY WORK

7 0
4 years ago
Read 2 more answers
Round off the nearest place value 75,432,387
liberstina [14]
Since you'd didn't specify what place value I'm assuming it's the whole number so the answer is: 80,000,000
7 0
3 years ago
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