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MakcuM [25]
3 years ago
10

Can someone please help me I don’t understand what to do

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0
So angle 4 and angle 2 are gonna equal 180

So your equation should say

3x - 10 + 70 = 180
3x + 60 = 180
-60 -60
3x = 120
— —
3 3
X = 40

And your answers x = 40
Hope you understood
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Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4. (Input decimals only, such as 12.71, as the answer.)
34kurt
3.14(a2+ab)
3.14(3(2)+3(4)
3.14 +6+12
3.14+18
21.14 I think that's it sorry if it's not.
6 0
4 years ago
Read 2 more answers
A piecewise function g(x) is represented by the graph.
alexira [117]

The piecewise functions that are represented by the graph are; g(x) = −2, x < −2; g(x) = −2x + 6, x ≥ 1; g(x) = x/2 + 1, –2 ≤ x < 1

<h3>How to Interpret a Piecewise Function graph?</h3>

From the attached graph of the piecewise function, we can access each option as follows;

A) g(x) = −2x, −2 < x < 0

This is not represented by the graph because g(x) = −2x has negative slope which means it goes downward. There's also no y-intercept in g(x) = −2x.

B)  g(x) = −2, x < −2;

This is represented by the graph because g(x) = −2 is a horizontal line which is only on the left side of x = -2.

C) g(x) = x − 2, −2 < x < 1;

This is not represented by the graph because g(x) = x − 2 has y-intercept at y = -2 and slope of 1 which means that graph of g(x)= x - 2 must be going upward and crossing at y = -2.

D) g(x) = −2x + 6, x ≥ 1

This is represented by the graph because g(x) = −2x+6 satisfies the graph which is going downward.

E) g(x) = x/2 + 1, –2 ≤ x < 1

This is represented by the graph because g(x) = (x/2) + 1 satisfies the graph which is going downward.

The options are;

g(x) = −2x, −2 < x < 0

g(x) = −2, x < −2

g(x) = x − 2, −2 < x < 1

g(x) = −2x + 6, x ≥ 1

g(x) = x/2+ 1, –2 ≤ x < 1

Read more about Piecewise Function at; brainly.com/question/3628123

#SPJ1

5 0
2 years ago
6) Manert's grandfather put $8000 in the bank for him when he was 5. The account has been
Firdavs [7]
He earned $199,423 in interest.

His total would be $207,423.
4 0
3 years ago
Solve 3/3x + 1/x+4 = 10/7x solve for x
wariber [46]

Answer:

x = 14/3 + sqrt(217)/3 or x = 14/3 - sqrt(217)/3

Step-by-step explanation:

Solve for x:

x + 4 + 1/x = (10 x)/7

Bring x + 4 + 1/x together using the common denominator x:

(x^2 + 4 x + 1)/x = (10 x)/7

Cross multiply:

7 (x^2 + 4 x + 1) = 10 x^2

Expand out terms of the left hand side:

7 x^2 + 28 x + 7 = 10 x^2

Subtract 10 x^2 from both sides:

-3 x^2 + 28 x + 7 = 0

Divide both sides by -3:

x^2 - (28 x)/3 - 7/3 = 0

Add 7/3 to both sides:

x^2 - (28 x)/3 = 7/3

Add 196/9 to both sides:

x^2 - (28 x)/3 + 196/9 = 217/9

Write the left hand side as a square:

(x - 14/3)^2 = 217/9

Take the square root of both sides:

x - 14/3 = sqrt(217)/3 or x - 14/3 = -sqrt(217)/3

Add 14/3 to both sides:

x = 14/3 + sqrt(217)/3 or x - 14/3 = -sqrt(217)/3

Add 14/3 to both sides:

Answer:  x = 14/3 + sqrt(217)/3 or x = 14/3 - sqrt(217)/3

8 0
3 years ago
Note: You may use a calculator to solve the following problems.
Verizon [17]
Use a calculator it will help.
4 0
4 years ago
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