All categories

2 years ago

NEED HELP FAST ON THIS EQUATION!!!! I HAVE 10 MINUTES LEFT!!!

Mathematics

2 answers:

densk [106]2 years ago

7 0

Answer:

n= 250

Step-by-step explanation:

simplify both sides of the equation then isolate the variable

Darina [25.2K]2 years ago

3 0

Answer:

n=250

Step-by-step explanation:

You might be interested in

Let r3 have the euclidean inner product. let u = (-1, 1, 1) and v = (-7, 6, 15). if ||ku + v||= 7, what is k? give the exact ans

amm1812

Ma $k\mathbf u+\mathbf v=k(-1,1,1)+(-7,6,15)=(-k-7,k+6,k+15)$

Recall that for a vector $\mathbf x\in\mathbb R^n$ , we have $\|\mathbf x\|=\sqrt{\mathbf x\cdot\mathbf x}$ . So we have

$\|k\mathbf u+\mathbf v\|=\sqrt{(k\mathbf u+\mathbf v)(k\mathbf u+\mathbf v)}=7$
$\implies k^2\mathbf u\cdot\mathbf u+2k\mathbf u\cdot\mathbf v+\mathbf v\cdot\mathbf v=49$
$\implies3k^2+56k+261=0$
$\implies k=-9,-\dfrac{29}3$

3 0

2 years ago

Use the perfect square method <br> (3x + 3)^2 = 36

kkurt [141]

Factor out the common term; 3

(3(x + 1))^2 = 36

Use the Multiplication Distributive Property; (xy)^a = x^ay^a

3^2(x + 1)^2 = 36

Simplify 3^2 to 9

9(x + 1)^2 = 36

Divide both sides by 9

(x + 1)^2 = 36/9

Simplify 36/9 to 4

(x + 1)^2 = 4

Take the square root of both sides

x + 1 = √4

Since 2 * 2 = 4, the square root of 2 is 2

x + 1 = 2

Break down the problem into these 2 equations

x + 1 = 2

x + 1 = -2

Solve the first equation; x + 1 = 2

x = 1

Solve the second equation; x + 1 = -2

x = -3

Collect all solutions;

8 0

3 years ago

Can someone help me with this question please and thank you.

Ainat [17]

Where’s the question at?

3 0

3 years ago

Just a question from a written Unit Test.

Rama09 [41]

Answer:

Step-by-step explanation:

mark me brilliant

plzzz

5 0

3 years ago

When 300 apple trees are planted per acre, the annual yield is 1.6 bushels of apples per tree. For every 10 additional apple tre

AVprozaik [17]

I just had this problem at rsm

the answer is 950 trees

5 0

3 years ago