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3 years ago

Two angles in a triangle add up to 115° what is the size of the third angle

2 answers:

7 0

If you want to find the last angle, you need to subtract the full degrees of angles by the angles you already have.

So this is what you equation should look like:
180 - 118 =
(180 is the full amount of angles.)

So the answer would be 180 - 118 = 62
So the answer to your question would be that the last angle is 62 degrees.

k0ka [10]3 years ago

3 0

65 degrees that's it man

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Diagram shows two perpendicular straight lines,OB and CBD,drawn on a Cartesian plane.

Tems11 [23]

Answer: (a) y = -3x + 10

$\bold{(b)\x=\bigg(\dfrac{10}{3},0\bigg)}$

Step-by-step explanation:

The slope of line CD is perpendicular to line OB, which means they have opposite and reciprocal slopes.

Step 1: Find the slope of OB using the formula: $m=\dfrac{y_2-y_1}{x_2-x_1}$

(x₁, y₁) = (0, 0) and (x₂, y₂) = (3, 1)

$m=\dfrac{1-0}{3-0} = \dfrac{1}{3}$

Step 2: Find the slope of CD (opposite and reciprocal of OB)

$m = \dfrac{1}{3}\qquad m_\perp=-\bigg(\dfrac{3}{1}\bigg) = -3$

Step 3: Input the perpendicular slope and the slope into the Point-Slope formula: y - y₁ = m(x - x₁)

(x₁, y₁) = (3, 1) because it is the point the line will pass through

y - 1 = -3(x - 3)

y - 1 = -3x + 9 distributed -3 into (x - 3)

y = -3x + 10 added 1 to both sides

***********************************************************************

The x-intercept of DQ is the same x-intercept as CD. The x-intercept is when y = 0

y = -3x + 10

0 = -3x + 10

-10 = -3x subtracted 10 from both sides

$\dfrac{10}{3}=x$ divided both sides by -3

3 0

2 years ago

A rectangular book measures 4 x 7. What is the length of its

Crazy boy [7]

B hope that helps have good one

5 0

3 years ago

The Dragons Soccer Team is having a pizza party and voted on

Korvikt [17]

Answer:

no enough info

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the volume of this rectangular prism?

qwelly [4]

What rectangular prims, what do you mean?!?

7 0

3 years ago

Gavin took a taxi home from the airport. The taxi fare was $7 plus an additional $0.65 per mile.

Alexeev081 [22]

Answer:

We know that:

There is a fixed cost of $7

for each mile, you need to pay $0.65

Then if you take the taxi for "m" miles, the total cost is:

c(m) = $0.65*m + $7

Now we know that Gavin also gives a $3 tip, so we need to add this to the cost:

c(m) = ($0.65*m + $7) + $3 = $0.65*m + $10

c(m) = $0.65*m + $10

Now we know that he paid a total of $62.65

Then:

c(m) = $62.65 = $0.65*m + $10

This is the equation we need to solve in order to find m, the number of miles between Gavin's house and the airport.

$62.65 = $0.65*m + $10

We only need to isolate m, we will get:

$62.65 - $10 = $0.65*m

$52.65/$0.65 = m = 81

This means that there are 81 miles between the airport and Gavin's house.

6 0

3 years ago