All categories

3 years ago

Please help ASAP 40 PTS

Mathematics

2 answers:

Shkiper50 [21]3 years ago

4 0

Answer:

B) 70°

Step-by-step explanation:

The triangle with x is an isosceles triangle, with base angles = 40

40 is the the angle of the triangle with angle y too (vertically opposite angles)

180 - 40 = 140 is the sum of the two base angles

y = 140/2 = 70

umka21 [38]3 years ago

3 0

Answer:

Step-by-step explanation:

The angle not marked in the top triangle is 40 degrees since it is an isosceles triangle. That makes the angle opposite it in the other triangle 40 degrees since they are vertical angles and vertical angles are equal.

The bottom triangle has 3 angles that sum to 180 degrees, The other angle not marked is also y since it is an isosceles triangle.

40 + y +y = 180

Subtract 40 from each side and combine like terms

40-40 +2y = 180-40

2y = 140

Divide by 2

2y/2 = 140/2

y = 70

You might be interested in

If this figure is a regular figure? How many degrees does each angle measure?

bearhunter [10]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$\frac{(5 - 2) \times 180}{5} = \\$

$\frac{3 \times 18 \times 10}{5} = 3 \times 18 \times 2 = \\$

$54 \times 2 = 108$

Thus each angle has a measure of 108° degrees.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

5 0

2 years ago

Use quadratic formula solve .7x^2 - 28x - 7

beks73 [17]

Answer:

x = 2 + sqrt(5) or x = 2 - sqrt(5)

Step-by-step explanation using the quadratic formula:

Solve for x over the real numbers:

7 (x^2 - 4 x - 1) = 0

Divide both sides by 7:

x^2 - 4 x - 1 = 0

Add 1 to both sides:

x^2 - 4 x = 1

Add 4 to both sides:

x^2 - 4 x + 4 = 5

Write the left hand side as a square:

(x - 2)^2 = 5

Take the square root of both sides:

x - 2 = sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

x = 2 + sqrt(5) or x - 2 = -sqrt(5)

Add 2 to both sides:

Answer: x = 2 + sqrt(5) or x = 2 - sqrt(5)

6 0

3 years ago

the senior class has 350 students. How much is the total bill if the student government wants to buy each senior a T-shirt costi

lorasvet [3.4K]

7.20+24.75=31.95
so 31.95 per student

31.95*350=11,182.50

This will cost the student body $11,182.50

7 0

3 years ago

Kelly had some rope in her closet. She cut the rope into 7 equal pieces. Each piece was ft long.

rewona [7]

the correct answer is c 7 feet i hope this helps you out

3 0

3 years ago

Read 2 more answers

What is the slope of the line shown in the graph?<br> A 3/2<br> B 2/3<br> C -3/4<br> D - 2/3

goldenfox [79]

Answer:

D. -2/3

Step-by-step explanation:

Since it is going down, it is negative

Think of this: Rise/Run

In this case, rise is when you are going up or down the graph

Run is when you are going to the right of the graph

Let's use 2 points (0,3) and (3,1)

Since you are going three points to the right we are going to put 3 in for run

You are going 2 places down, so we are going put -2 in for rise

This gives us -2/3

Another way to do this is (1-3)/(3-0) = -2/3

6 0

3 years ago