All categories

3 years ago

LAST OF MY GEOMETRY PLZ HELP

Mathematics

1 answer:

makvit [3.9K]3 years ago

4 0

Answer:

Step-by-step explanation:

14) 2x - 10 = 80 {alternate interior angles are equal}

2x = 80 + 10

2x = 90

x = 90/2

x = 45°

15) 3x + 120 = 180 { co interior angles are supplementary}

3x = 180 - 120

3x = 60

x = 60/3

x = 20°

16) 3x + 15 = 135 {corresponding angles are equal}

3x = 165 - 15

3x = 150

x = 150/3

x = 50°

You might be interested in

$239.16 with a 5% sales tax

deff fn [24]

Price would be 251.12 tax is 11.96

8 0

3 years ago

Activity Question 1 When designing a truss, a truss builder might know the base angle measurement and the length of the tie beam

laiz [17]

Answer:

36.87°

Step-by-step explanation:

Assume the triangles are as in the diagram below.

∠BAC includes ∠DAE.

The measure of ∠BAE is 36.87°.

7 0

3 years ago

Find the number that belongs in the green box. Round your answer to the nearest tenth

Umnica [9.8K]

Answer:

134.5 degree

Step-by-step explanation:

first find the remaining side of a triangle

BY using cosine rule

C^2=A^2+B^2-2ABcosx

apply square root both sides

√c^2 =√[4^2+10^2-2(4)(10)cos29]

C=√(116-69.96958)

C=√46.03

C=6.8

Now find angle using cosine rule

C^2=A^2+B^2-2ABcosx

10^2=4^2+6.78^2-2(4)(6.78)cosx

100=16+45.9684-54.24cosx

100=61.9684-54.24cosx

100-61.9684=-54.24cosx

(38.0316)/-54.24=(-54.4cosx)/-54.24

-0.70117=cosx

X= cos inverse of -0.70117

x=134.5 degree

5 0

3 years ago

Read 2 more answers

A supermarket offers a delivery service. If a customer pays $9 per month, each delivery costs just $2. Write an equation that sh

Rzqust [24]

The linear function that models the total cost for x deliveries is:

$y(x) = 2x + 9$

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

A linear function has the following format:

$y = mx + b$

In which

m is the slope, that is, the rate of change.
b is the y-intercept, that is, the value of y when x = 0.

In this problem:

Fixed cost of $9 per month, $b = 9$ .
Cost of $2 for each delivery, thus $m = 2$ .

The function for the total cost for x deliveries is:

$y(x) = 2x + 9$

A similar problem is given at brainly.com/question/16270359

4 0

3 years ago

5^x + 5^x+1= 150 Find x Help me pls i need soon Tksss

raketka [301]

Answer:

$x=2$

Step-by-step explanation:

So we have the equation:

$5^x+5^{x+1}=150$

First, separate the second term:

$5^x+(5\cdot5^x)=150$

Let u equal 5ˣ. So:

$u+5u=150$

Combine like terms:

$6u=150$

Divide both sides by 6:

$u=25$

Substitute back u:

$5^x=25$

Take the base 5 logarithm of both sides:

$\log_5(5^x)=\log_5(25)$

The left cancels:

$x=\log_5(25)$

Evaluate the right:

$x=2$

So, our answer is 2.

And we're done!

5 0

3 years ago