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poizon [28]
3 years ago
13

What is the value of z in the equation 2(4z − 9 − 7) = 166 − 46?

Mathematics
2 answers:
kumpel [21]3 years ago
8 0
Hi there!

2(4z - 9 - 7) = 166 - 46
let's make this a little more simpler...

2(4z - 16) = 120

use distributive property.
multiply 2 and 4z , 2 and -16.
8z - 32 = 120

add 32 on both sides to isolate the variable

8z = 152

divide both sides by 8...

z = 19

So your answer is A. 19

Hope this helped!! :)
Brums [2.3K]3 years ago
6 0

Answer: your answer is 19, A

Step-by-step explanation:

2(4z - 9 - 7) = 166 - 46

2(4z - 16) = 120

8z - 32 = 120

8z = 152

z = 19

So your answer is A. 19

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If you if you traveled 52 ft to -43 feet how far is that
Hitman42 [59]

The answer is 95ft

1. Set up an equation 52-x=-43

2. Subtract 52 from both sides -x=43-52

3. Simplify -x=-95

4. x=95

All the best (if you don't understand the equation let me know if you want help)



8 0
3 years ago
Let T: Mmxn(R)Mmxn(R) be the function defined
alexandr402 [8]

Answer:

True. See the explanation and proof below.

Step-by-step explanation:

For this case we need to remeber the definition of linear transformation.

Let A and B be vector spaces with same scalars. A map defined as T: A >B is called a linear transformation from A to B if satisfy these two conditions:

1) T(x+y) = T(x) + T(y)

2) T(cv) = cT(v)

For all vectors x,y \in V and for all scalars c \in R. And A is called the domain and B the codomain of T.

Proof

For this case the tranformation proposed is t: M_{mxn} (R) > M_{nxm} (R)

Where T(A) = A^T

For this case we have the following assumption:

1) The transpose of an nxm matrix is an nxm matrix

And the following conditions:

2) T(A+B) = (A+B)^T = A^T + B^T = T(A) + T(B)

And we can express like this T(A+B) =T(A) + T(B)

3) If A \in M_{mxn}(R) and c \in R then we have this:

T(cA) = (cA)^T = cA^T = cT(A)

And since we have all the conditions satisfied, we can conclude that T is a linear transformation on this case.

5 0
3 years ago
At barlow school 4/9 of the 873 students are boys at willow school 2/3 of the 630 students are girls which school has the greate
marishachu [46]

Answer:

There are 178 more boys in Barlow school as compared to Willow school.

Step-by-step explanation:

We are given the following in the question:

Barlow school:

Total number of students = 873

Number of boys =

=\dfrac{4}{9}\times 873 = 388

Willow school:

Total number of students = 630

Number of girls =

=\dfrac{2}{3}\times 630 = 420

Number of boys =

Total number of students - total number of girls

=630-420 = 210

Thus, Barlow school has greater number of boys than Willow school.

Difference between the number of boys =

=388-210\\=178

Thus, there are 178 more boys in Barlow school as compared to Willow school.

7 0
3 years ago
Write an equivalent expression by simplifying the expression using combining like terms.
Scrat [10]
Answer: 10x + 4y + 2

The terms with an x are considered like terms so they could be subtracted.

6 0
2 years ago
Need help with this problem please !!
Harrizon [31]

Answer:

2

Step-by-step explanation:

30y x 2 = 60y

3 0
3 years ago
Read 2 more answers
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