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sveta [45]
3 years ago
11

Solve for X: x + 17 = 2(5x - 23)

Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0

Answer:

7; brainliest please!

Step-by-step explanation:

dsp733 years ago
5 0

Answer:

x=+7

Step-by-step explanation:

We move all terms to the left:

x+17-(2(5x-23))=0

We calculate terms in parentheses: -(2(5x-23)), so:

2(5x-23)

We multiply parentheses

10x-46

Back to the equation:

-(10x-46)

We get rid of parentheses

x-10x+46+17=0

We add all the numbers together, and all the variables

-9x+63=0

We move all terms containing x to the left, all other terms to the right

-9x=-63

x=-63/-9

x=+7

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Find the area of the composite figure in terms of the figure (use 3.14 for pi)​
svp [43]

Answer:

105.12 ft²

Step-by-step explanation:

Let's first find the area of the rectangle.

10\cdot8=80 ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is \pi r^2. The radius is 4, as the diameter is 8.

3.14\cdot4^2

3.14\cdot16

50.24\div2=25.12

Add 80 and 25.12:

80+25.12=105.12

Hope this helped!

5 0
3 years ago
Help!<br><br> Please look at the pic and help me!
inna [77]

Answer:

36

Step-by-step explanation:

equilateral triangle has all sides So,

perimeter = a+b+c= 12+12+12=36

5 0
2 years ago
Read 2 more answers
Given: AB = DC, AC = DB
oee [108]

Answer:

SSS Postulate

Step-by-step explanation:

AB=CD (Given)

AC=BD (Given)

BC=BC (Given)

So SSS Postulate

Side Side Side postulate

6 0
1 year ago
Solve 4 cos2x-3 = 0 for all real values of x.
vichka [17]

4 cos² x - 3 = 0

4 cos² x = 3

cos² x = 3/4

cos x = ±(√3)/2

Fixing the squared cosine doesn't discriminate among quadrants.  There's one in every quadrant

cos x = ± cos(π/6)

Let's do plus first.  In general, cos x = cos a has solutions x = ±a + 2πk integer k

cos x = cos(π/6)

x = ±π/6 + 2πk

Minus next.

cos x = -cos(π/6)

cos x = cos(π - π/6)

cos x = cos(5π/6)

x = ±5π/6 + 2πk

We'll write all our solutions as

x = { -5π/6, -π/6, π/6, 5π/6 } + 2πk integer k

3 0
2 years ago
Use synthetic division to find the remainder. When 3x^ 2 - 2x - 4 is divided by x - 3.
OlgaM077 [116]
ANSWER

a.)17

EXPLANATION

The given function is

3 {x}^{2} - 2x - 4

We want to find the remainnder when this function is divided by x-3 using synthetic division.

We write the coefficients of the given function and carry out the synthetic division as shown in the attachment.

The remainnder is 17.


The correct answer is A.

7 0
3 years ago
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