All categories

3 years ago

Find m A. 40° B. 80° C. 130° D. 260°

Mathematics

2 answers:

Studentka2010 [4]3 years ago

7 0

Answer:

Answer is 130 degrees

Step-by-step explanation:

The given two angles are = 55 degrees and 45 degrees.

Sum of these two angles are = 55+45 = 100 degrees

Given that angles Q and S are equal. We know that the sum of a angles of closed quadrilateral is 360 degrees. Therefore the angles Q and S are = $\frac{360-100}{2}$ = 130 degrees.

alekssr [168]3 years ago

3 0

The answer to this is A. 40

You might be interested in

PLEASE HELP ME WITH ALL ITS DUE TODAY!!

Vadim26 [7]

Answer:

Line 1 Slope: - 4/3

Line 2 Slope: 3/4

Line 3 Slope: 3/4

---------------------------------------------------------------------------------------------------------------

Line 1 and Line 2: Perpendicular

Line 1 and Line 3: Perpendicular

Line 2 and Line 3: Parallel

Step-by-step explanation:

Line 1: Passes through (6, -4) and (0, 4).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -

(4 - (-4)) / (0 - 6)

(4 + 4) / (-6)

8 / -6

-4 / 3

Slope = - 4/3

___________________________________________________________

Line 2: Passes through (-4, -2) and (8, 7).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -

(7 - (-2)) / (8 - (-4))

(7 + 2) / (12)

9 / 12

3 / 4

Slope = 3/4

___________________________________________________________

Line 3: Passes through (-4, -5) and (4, 1).

We first find the slope by using this equation (y2 - y1) / (x2 - x1) -

(1 - (-5)) / (4 - (-4))

(1 + 5) / (4 + 4)

6 / 8

3 / 4

Slope = 3/4

___________________________________________________________

Line 1 and Line 2: Perpendicular

Line 1 and Line 3: Perpendicular

Line 2 and Line 3: Parallel

5 0

2 years ago

Solve this system of linear equations. Separatethe x- and y-values with a comma.13x = -21 - 6y- 8x = 36 + 6yEnter the correct an

Ivenika [448]

Solution:

Let:

$\begin{gathered} 3x=-21-6y\text{ (Equation 1)} \\ -8x=36+6y\text{ (Equation 2)} \end{gathered}$

To get the value of x, we add the Equation 1 and 2.

13x = -21 - 6y

+ - 8x = 36 + 6y

We will get:

5x=15

Calculate:

x= 3

Since x= 3, we plug in what we know:

13x = -21 - 6y

13(3) = -21 - 6y

39 = -21 - 6y

Simplify and rearrange:

-6y = 39 + 21

-6y= 60

Calculate:

y= -10

Therefore, the values are x= 3, y= -10 or (3,-10).

7 0

1 year ago

Two students went to the schools clinic with fevers Isabell had a temperature of 103.78 and Bryan had a temperature that was 2.3

jeyben [28]

Answer:

1) The temperature of Bryan is 101.39°

Step-by-step explanation:

Here, the Temperature of Isabell is given = 103.78 degrees

Now, the temperature of Bryan = Iaabell's Tempt. - 2.36

So, temperature of Bryan = (103.78 - 2.36) degrees

= 101.4 degree

Hence, the temperature of Bryan = 101.4 degree

So, the most appropriate option is 101.39°

4 0

2 years ago

What is -3\4 + (-3\8)

Alexus [3.1K]

The answer is -9/8, hope this helps!

3 0

2 years ago

Check that 2b+b and 3b have the same value when b is 1,2, and 3. Do 2b+b and 3b have the same value for all values of b? Explain

Inessa [10]

Answer:

Expression 2b+b and 3b have same values for all values of b.

Step-by-step explanation:

Given the two expression $2b+b$ and $3b$ and values of b as 1, 2 and 3.

Consider first expression that is, $2b+b$ .

Substituting the value of $b=1$ ,

$2\left(1\right)+\left(1\right)=2+1=3$ ....1

Substituting the value of $b=2$ ,

$2\left(2\right)+\left(2\right)=4+2=6$ ....2

Substituting the value of $b=3$ ,

$2\left(3\right)+\left(3\right)=6+3=9$ ....3

Consider second expression that is, $3b$ .

Substituting the value of $b=1$ ,

$3\left(1\right)=3$ ....4

Substituting the value of $b=2$ ,

$3\left(2\right)=6$ ....5

Substituting the value of $b=3$ ,

$3\left(3\right)=9$ ....6

For value of b=1, equation 1 and equation 4 are same, for value of b=2, equation 2 and equation 5 are same and for value of b=3 equation 3 and equation 6 are same.

Therefore both expression are same for all values of b.

3 0

3 years ago