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Lubov Fominskaja [6]
3 years ago
9

What is the opposite of the coordinate for point D? A) −33 B) −34 C) 33 D) 34

Mathematics
1 answer:
almond37 [142]3 years ago
4 0
The answer is going to be B. -34
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Simultaneous equations 2x+3y=13 4x-y=-2
Rufina [12.5K]

Answer:

(0.5, 4 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 13 → (1)

4x - y = - 2 → (2)

Multiplying (2) by 3 and adding to (1) will eliminate the term in y

12x - 3y = - 6 → (3)

Add (1) and (3) term by term to eliminate y

14x = 7 ( divide both sides by 14 )

x = 0.5

Substitute x = 0.5 into either of the 2 equations and evaluate for y

Substituting into (1)

2(0.5) + 3y = 13

1 + 3y = 13 ( subtract 1 from both sides )

3y = 12 ( divide both sides by 3 )

y = 4

Solution is (0.5, 4 )

3 0
3 years ago
Can someone please help me solve this question. What is 8^6×8^9
Mademuasel [1]

Answer:

(8^6) × (8^9)=

3.51843721 ×10¹³

5 0
3 years ago
Read 2 more answers
What was the interest rate if your balance on an investment of $830 at the end of one year is $871.50?
olga55 [171]

Answer:

5%

Step-by-step explanation:

5 0
2 years ago
How many terms are in a b c and d
ddd [48]
Um b is maybe 9n + 5 = 15n
um c is maybe 3 - 5 to the third power =3 - 125 = -122 + 7 = -115
maybe you have to add the positive 15n to -115 = -100n
um d is maybe 3b + 2c - 10c = 3b + -8c = -5 <span />
7 0
3 years ago
Anthony wants to buy CD for $400 that earns 2.5% APR and is compound quarterly. The CD matures in 3 years. Hi interest earned wi
lukranit [14]

Answer:

<em>The correct option is:   B.  $30.00</em>

Step-by-step explanation:

<u>The formula for compound interest</u> is.......

A=P(1+\frac{r}{n})^n^t , where A= Final amount, P= Initial amount, r= rate of interest in decimal form, n= number of compounding in a year and t= time duration in years.

Anthony wants to buy CD for $400 that earns 2.5% APR and is compound quarterly and the CD matures in 3 years.

So here,  P= 400, r=2.5\%=0.025, t= 3

As the CD is compounded quarterly, so here  n= 4

Plugging these values into the above formula......

A= 400(1+\frac{0.025}{4})^(^4^*^3^)\\ \\ A= 400(1+0.00625)^1^2\\ \\ A=400(1.00625)^1^2\\ \\ A= 431.053...

So, the amount of total interest earned = (\$431.053...-\$400)=\$31.053... \approx \$30.00(Approximately)

5 0
3 years ago
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