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timurjin [86]
3 years ago
14

The measure of angle is _________ degrees.

Mathematics
1 answer:
Gnesinka [82]3 years ago
7 0

Answer:

65 degrees

Step-by-step explanation:

Triangle = 180 degrees

Straight line = 180 degrees

180 - 145 = 35

35 + 80 = 115

180 - 115 = 65 degrees

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Y=2X-1 5x-4y=1 is (1,1) a solution of the system
Natasha2012 [34]

You are given the system of equations

\left\{\begin{array}{l}y=2x-1\\5x-4y=1.\end{array}\right.

If you want simply to know whether (1,1) is a solution of this system, then substitute x=1 and y=1 into both equations:

\left\{\begin{array}{l}1=2\cdot 1-1\\5\cdot 1-4\cdot 1=1\end{array}\Rightarrow \begin{array}{l}1=1\\1=1\end{array}\right.

This means that (1,1) is a solution, because both iqualities hold.

6 0
3 years ago
Does anyone have the answers for the rest of this or know the answers ?
irga5000 [103]

Answer:

4.

a)  4x^4-4x^3-16x^2+16x

b)  4x^4-4x^3-16x^2+16x

5. Yes

Step-by-step explanation:

The distributive property is:

(a+b)(c+d)=ac+ad+bc+bd

It can be extended to a lot of terms as well.

We will use this to multiply both of the probelms shown.

4 a)

(4x^2-4x)(x^2-4)=(4x^2)(x^2)-(4)(4x^2)-(4x)(x^2)+(4x)(4)=4x^4-16x^2-4x^3+16x=4x^4-4x^3-16x^2+16x

The answer is 4x^4-4x^3-16x^2+16x

4 b)

(x^2+x-2)(4x^2-8x)=(x^2)(4x^2)-(8x)(x^2)+(x)(4x^2)-(8x)(x)-(2)(4x^2)+(2)(8x)=4x^4-8x^3+4x^3-8x^2-8x^2+16x=4x^4-4x^3-16x^2+16x

The answer is  4x^4-4x^3-16x^2+16x

5. Yes

4 0
3 years ago
A delivery truck driver charges a fixed base price of $6 for 2 miles.
stiv31 [10]

Answer:

Option B.

Step-by-step explanation:

It is given that a delivery truck driver charges a fixed base price of $6 for 2 miles.

After 2 miles, he charges an additional $2 for every mile and after 6 miles, he charges an additional $4 for every mile.

We need to describe the cost of the delivery truck between 1 mile and 2 miles.

In the given graph x-axis represents the distance in miles and y-axis represents the cost in dollars.

From the given graph it is clear that the value of function is constant between x=1 and x=2.

It means the cost of the delivery truck between 1 mile and 2 miles is constant.

Therefore, the correct option is B.

5 0
3 years ago
Find f\left(x+3\right)f(x+3) given the function: f\left(x\right)=-5x+3f(x)=−5x+3
Serjik [45]

Answer:

-5x-12

Step-by-step explanation:

Given f(x) = -5x+3, to get f(x+3), we are going to replace x in f(x) with x+3 as shown;

f(x) = -5x+3

f(x+3) = -5(x+3)+3

f(x+3) = -5x-15+3

f(x+3) = -5x-12

Hence the function f(x+3) is -5x-12

7 0
3 years ago
What are the steps to this equation. 7 3/7 - 2 5/7
nignag [31]
Here is your answer:

7. 3×1=3
7×1=7


2. 5×1=5
7×1=7

=5 -2/7

Step one: write the equation

Step two: find the common denommarator (which is 7)

Step three: subtract 3-5= which equals to negative 2

Step four: subtract the whole numbers ( 7 and 2) which gives you five

Your answer is...

5 -2/7
3 0
4 years ago
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