I NEED HELP PLESE I BEG YOUUUU

Help!? Helping my son with geometry ... I have no clue what I’m doing here

Tatiana [17]

We are Given:

∠1 = 65°

<h3>Finding the measure of all other angles with proof:</h3>

∠2:

∠1 + ∠2 = 180° (angle 1 and 2 form a Linear Pair)

65 + ∠2 = 180 (Angle 1 = 65°)

∠2 = 180 - 65

∠2 = 115°

∠3:

∠1 = ∠3 (Angle 1 and 3 are vertically opposite)

65 = ∠3 (Angle 1 = 65°)

∠3 = 65°

∠4:

∠4 = ∠2 (Vertically opposite angles)

∠4 = 115° (∠2 = 115°)

∠5:

∠5 = ∠1 (Corresponding angles)

∠5 = 65° (∠1 = 65°)

∠6:

∠6 = ∠2 (Corresponding angles)

∠6 = 115° (∠2 = 115°)

∠7:

∠7 = ∠3 (Corresponding Angles)

∠7 = 65° (∠3 = 65°)

∠8:

∠8 = ∠4 (Corresponding angles)

∠8 = 115° (∠4 = 115°)

4 0

3 years ago

Write an equation of the line

aleksandrvk [35]

Y=1/2x+1.5
hope that helps!

7 0

3 years ago

Sergio is working on a research project involving the ages of students at Brooklyn College. After interviewing 500 students, he

Zinaida [17]

Answer:

The probability of of a randomly chosen student being exactly 21 years old.

= 1.293

Step-by-step explanation:

Step(i):-

Given Population size n = 500

Mean of the Population = 20 years and 6 months

= $20 + \frac{6}{12} = 20 +0.5 = 20.5 years$

Standard deviation of the Population = 2 years

Let 'X' be the range of ages of the students on campus follows a normal distribution

Let x =21

$Z = \frac{x-mean}{S.D}$

$Z = \frac{x-mean}{S.D} = \frac{21-20.6}{2} =0.2$

The probability of a randomly chosen student being exactly 21 years old.

P( Z≤21) = 0.5 + A( 0.2)

= 0.5 +0.793

= 1.293

6 0

3 years ago

Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’

lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

$x-0.1x+2.70=56.70$

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the original price of the jeans.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans after the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is not a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

$(70)-0.1(70)+2.7\stackrel{?}{=}56.70$

Multiply:

$70-7+2.7\stackrel{?}{=}56.7$

Subtract:

$63+2.7\stackrel{?}{=}56.7$

Add:

$65.7\neq56.7$

However, we can verify that 60 is the solution by substituting. So, substitute 60 for every x:

$(60)-0.1(60)+2.7\stackrel{?}{=}5.7$

Multiply:

$60-6+2.7\stackrel{?}{=}56.7$

Subtract:

$54+2.7\stackrel{?}{=}56.7$

Add:

$56.7\stackrel{\checkmark}{=}56.7$

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0

4 years ago

Read 2 more answers

What times what equals 59

Elden [556K]

59 is a prime number, so no two intergers can multiply together to make it.

5 0

3 years ago