All categories

3 years ago

CAN SOMEONE HELP ME PLSSS-

Mathematics

1 answer:

Lina20 [59]3 years ago

3 0

He will need to save for 40 weeks

You might be interested in

Find the values of the variables

Umnica [9.8K]

Looks like you're given an equality between two matrices,

$\begin{bmatrix}-12&-w^2\\2f&3\end{bmatrix}=\begin{bmatrix}2k&-81\\-14&3\end{bmatrix}$

Two matrices are equal if the entries in the same positions (row and column) are equal. This means

$\begin{cases}-12=2k\\-w^2=-81\\2f=-14\\3=3\end{cases}$

We can ignore the last one, since it's clearly true. For the remaining, we get

$-12=2k\implies k=-\dfrac{12}2=-6$

$-w^2=-81\implies w^2=81\implies w=\pm9$

$2f=-14\implies f=-\dfrac{14}2=-7$

7 0

3 years ago

Help please what is the answer?

kipiarov [429]

Answer:

What is the question

Step-by-step explanation:

I want to help you love, I just don't know how to without the question

5 0

3 years ago

How do I divide .74 divided by .004

LenaWriter [7]

Answer:

185

Step-by-step explanation:

using calculator

8 0

3 years ago

Solve for x.<br> Put your answer in decimal form.

liberstina [14]

Answer:

i don't know

Step-by-step explanation:

7 0

3 years ago

A property owner wants to build a cyclone fence around their property. The lot is rectangular, 110 feet by 270 feet. The fence i

dimulka [17.4K]

Answer:

total cost= $5,814

Step-by-step explanation:

Total linear feet measured: (110 x 2) + (270 x 2) = 760 linear ft

total sq ft= 760 x (7) = 5320 sq ft

total linear ft x labor= 760 x 1.70 = 1292 labor

Total sq ft x Cyclone fencing cost= 5320 x .85 = 4522

the total cost is 1292 + 4522 = $5,814

8 0

3 years ago