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quester [9]
3 years ago
13

(√8 + √12)(√48 + √18) simplify the expression show all work

Mathematics
1 answer:
notka56 [123]3 years ago
3 0

First,add the 8 & 12.

(√8 +√12)=(√20)

Secondly, add the

(√48 + √18)=(√66)

Then

(√20)(√66)

When two brackets meet,we multiply.SO

√20×√66

√1320 is the right answer

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The angle measures of a triangle are in the ratio 5:6:7. find the angle measures of the triangle
Mandarinka [93]

Answer:

50°, 60°, 70°

Step-by-step explanation:

Sum the parts of the ratio, 5 + 6 + 7 = 18 parts

The 3 angles in a triangle sum to 180° , then

180° ÷ 18 = 10° ← value of 1 part of the ratio, then

5 parts = 5 × 10° = 50°

6 parts = 6 × 10° = 60°

7 parts = 7 × 10° = 70°

The angle measures of the triangle are 50° , 60° , 70°

4 0
3 years ago
What’s the area of the rectangle in terms of x if the length is (x+8) and the width is (2x-1)?
WARRIOR [948]

Answer:

Step-by-step explanation:

A=LW\\ \\ A=(x+8)(2x-1)\\ \\ A=2x^2-x+16x-8\\ \\ A=2x^2+15x-8

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2 years ago
Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t
Viefleur [7K]

Each term differs by -68 and the first term is -68, we have:

a_{n}=a_1-68(n-1) \implies \\ a_{n}=a_1-68n+68 \implies\\ a_n=-68-68n+68 \implies \\ a_n=-68n

As an expession it's just -68n.

6 0
3 years ago
1. Evaluate the function f(x)=3x-1 using the domain of -2, 0, 3, and 5. Results are to be shown in a table.
IceJOKER [234]

Answer:

See explanation

Step-by-step explanation:

You are given the function f(x)=3x-1

The domain of the function are all possible values of variable x, so you can find f(x) for x=-2, 0, 3, 5:

f(-2)=3\cdot (-2)-1=-6-1=-7\\ \\f(0)=3\cdot 0-1=0-1=-1\\ \\f(3)=3\cdot 3-1=9-1=8\\ \\f(5)=3\cdot 5-1=15-1=14

The table is

\begin{array}{cc}x&f(x)\\-2&-7\\0&-1\\3&8\\5&14\end{array}

The inverse function f^{-1}(x) has the domain which is the range of the function f(x) (all possible values of f(x)), so the domain of inverse function is {-7,-1,8,14}

6 0
3 years ago
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The rate change of (3,0) and (0,9)
ddd [48]

Answer:

rate of change is -3

A = (9 - 0) / (0 - 3) = 9 / -3 = -3

Step-by-step explanation:

8 0
2 years ago
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