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torisob [31]
3 years ago
10

X2 + 16x – 2 = 11

Mathematics
1 answer:
lord [1]3 years ago
6 0

Answer:

(x+8)^2=77    and   x=negative 8±√77

Step-by-step explanation:

After watching a video, I got it right on Khan

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Roberto wants to reduce a drawing that is 12 inches long by 9 inches wide. If his new drawing is 8 inches long, how wide will it
Bess [88]

Answer: It would be 6 inches wide.


Step-by-step explanation: Well two thirds of 12 in. is 8in. So  two thirds of 9in. would be 6 inches.


6 0
3 years ago
Read 2 more answers
5u − –20u − u − 18u + –11u = 10<br> HURRRY PLEEEEESEEEE I ONLY HAVE 4 minutes left
drek231 [11]
5u - (-20u) - u - 18u + (-11u) = 10
5u + 20u - u - 18u - 11u = 10
-5u = 10
-5(-2) = 10

So, in conclusion, X, is equal to -2.
8 0
2 years ago
The first 4 terms of a geometric sequence are 2, 6, 18, 54. Part A: Find the common ratio. Remember the common ratio is the numb
ra1l [238]

Answer:

Common ratio is 3

The three terms are 162, 486, 1458

Step-by-step explanation:

Given: The first 4 terms of a sequence are 2,6,18,54

To find:

A. the common ratio

B. the next 3 values in the geometric sequence

Solution:

Geometric sequence is a sequence in which each of the terms is obtained by multiplying the previous term by a fixed number.

A.

\frac{6}{2}=3\\\\\frac{18}{6}=3\\\\\frac{54}{18}=3

So, the common ratio is 3

B.

The next three values are as follows:

54(3)=162\\162(3)=486\\486(3)=1458

8 0
2 years ago
Use the numbers below to simplify the expression. Numbers may be used once or not at all. 34671011 3y + 7 + 4y + 3 = y +
Svetllana [295]

Answer:

3y + 7 + 4y + 3 = 7y + 10

Step-by-step explanation:

Given

3y + 7 + 4y + 3 = [\ ]y + [\ ]

Required

Simplify

We have:

3y + 7 + 4y + 3

Collect like terms

3y + 7 + 4y + 3 = 3y + 4y + 7 + 3

Evaluate like terms

3y + 7 + 4y + 3 = 7y + 10

8 0
2 years ago
What is the value of z in the equation 2(4z − 6 − 6) = 170 − 46? 12.5 15.5 16.5 18.5
vivado [14]
2(4z - 6 - 6) = 170 - 46

2(4z - 12) = 124    |use distributive property: a(b - c) = ab - ac

8z - 24 = 124      |add 24 to both sides

8z = 148      |divide both sides by 8

z = 18.5
4 0
3 years ago
Read 2 more answers
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