2 years ago

I need answer as fast as possible please.

Mathematics

1 answer:

earnstyle [38]2 years ago

6 0

Step-by-step explanation:

a=110. x,55

y=180-(x+75)=50

w,75

b,110

x,40

y,30

You might be interested in

Please teach me on how to answer this question. (addmath question)

arsen [322]

We know that $\overline{x}=8$ so:

$\overline{x}=8\\\\\\\dfrac{\sum\limits_{k=1}^7\,x_k}{7}=8\qquad|\cdot7\\\\\\ \boxed{\sum\limits_{k=1}^7\,x_k=56}$

We want to calculate:

$\sum\limits_{k=1}^7\,\big(2x_k-3\big)^2=\sum\limits_{k=1}^7\,\big(4x_k^2-12x_k+9\big)=\\\\\\=\sum\limits_{k=1}^7\,4x_k^2-\sum\limits_{k=1}^7\,\big12x_k+\sum\limits_{k=1}^7\,9=4\sum\limits_{k=1}^7\,x_k^2-12\sum\limits_{k=1}^7\,x_k+\sum\limits_{k=1}^7\,9=\\\\\\=4\cdot672-12\cdot56+7\cdot9=2688-672+63=\boxed{2079}$

5 0

3 years ago

What is the answer for this question-7x-2y=-13

Gala2k [10]

What are you trying to find? y?x?..???

5 0

3 years ago

I would appreciate some help on this if anyone could answer it

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

yea

7 0

3 years ago

Solve the equation x to the power of 2 = 10

Nadusha1986 [10]

Answer:

The answer is √10,−√10 (award brainliest)

Step-by-step explanation:

Take the root of both sides and solve.

Exact Form: x = √10,−√10

Decimal Form: x = 3.16227766...,−3.16227766...

for more detailed explanation comment down below this post and ask

8 0

3 years ago

How to model using base 10 blocks to multiply 4x16

uysha [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

I need answer as fast as possible please.​

I need answer as fast as possible please.