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2 years ago

Which equation represents the relationship between the angles in this figure?

Mathematics

2 answers:

Crank2 years ago

4 0

Answer:

2b+148 = 180

Step-by-step explanation:

The three angles form a straight line so they add to 180

b+148+b = 180

Combine like terms

2b+148 = 180

mrs_skeptik [129]2 years ago

3 0

Answer:

Step-by-step explanation:

sum of angles on a straight line = 180

b + b + 148 = 180

2b + 148 = 180

You might be interested in

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

4 0

2 years ago

Pls help me with this question and explain how you got the answer!!!!!

Luba_88 [7]

Answer:

-87

Step-by-step explanation:

So, first to find x you need to subtract 121 from 180. You do this because both the angle which measures 121 degrees and x lie on the same line, and since a line has an angle measure of 180, you do 180-121 to find x. The same thing can be done for y. Since the angle measure of 34 degrees and y lie on the same line you can calculate 180-34 to get y. So, let's do that.

180-121=x

59=x

180-34=y

146=y

Once you've done that you can easily subtract the two and get your answer.

x-y

substitute the answer for the variables and get

59-146

and then your answer is

-87

4 0

2 years ago

You roll a number cube twice. Find the probability of the event. Rolling a 1 then a 2.

kap26 [50]

P( 1) = 1/6
P(2) = 1/6

Probability of 1 then 2 = 1/6 * 1/6 = 1/36

7 0

2 years ago

The midsegment of a trapezoid is always parallel to each base true or false

Deffense [45]

Answer:

True

Step-by-step explanation:

we know that

The Trapezoid Mid-segment Theorem states that : A line connecting the midpoints of the two legs of a trapezoid is parallel to the bases, and its length is equal to half the sum of lengths of the bases

see the attached figure to better understand the problem

EF is the mid-segment of trapezoid

EF is parallel to AB and is parallel to CD

EF=(AB+CD)/2

The mid-segment of a trapezoid is always parallel to each base

therefore

The statement is true

8 0

2 years ago

One tract of land contains 25 acres. An adjoining tract of land is 1 square mile. The owners agreed to sell for $1,500 per acre.

Firdavs [7]

Answer:

$997,500

Step-by-step explanation:

Tract 1 = 25 acres

Tract 2 = 1 square mile

Cost of land per acre = $1500

Number of acres per square mile = 640 acres

Total number fo acres :

(Tract 1 + Tract 2)

(25 + 640) acres

= 665 acres

Total cost :

665 * $1500

= $997,500

8 0

2 years ago