1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elina [12.6K]
3 years ago
5

HELP PLEASE!! THANK YOU!

Mathematics
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer: choice B, 40.5 degrees

The triangle is isosceles based on the fact that AC = BC (the tick marks are the same). The angles opposite the congruent sides are also congruent

angle A = angle B = x for some unknown number x

The three angles A,B,C add to 180, so,

A+B+C = 180

x+x+99 = 180

2x+99 = 180

2x = 180-99

2x = 81

x = 81/2

x = 40.5

So angle A and angle B are both 40.5 degrees

Check:

A+B+C = 180

40.5+40.5+99 = 180

180 = 180 answer is confirmed

==============================

Edit

The sides with the two tick marks are the same length, so 7x-4 is the same as length as 31

7x-4 = 31

7x = 31+4

7x = 35

x = 35/7

x = 5

Answer is choice B) 5

You might be interested in
A rectangular prism has a length of 5/2 ft, width of 9/6 ft, and height of 2/3 ft. what is its volume?
ivanzaharov [21]
The formula of the volume of the rectangular prism:

V = length × width × height

We have:
l=\dfrac{5}{2}ft\\\\w=\dfrac{9}{6}ft\\\\h=\dfrac{2}{3}ft\\\\V=l\cdot w\cdot h=\dfrac{5}{2}\cdot\dfrac{9}{6}\cdot\dfrac{2}{3}\\\\=\dfrac{5}{2}\cdot\dfrac{1}{1}\cdot\dfrac{1}{1}=\dfrac{5}{2}=2.5ft.^3
6 0
2 years ago
I am very confused and so are my classmates.
Nadya [2.5K]

Answer:

I used A and got 0.4 and she needs 52200

Step-by-step explanation:

8 0
1 year ago
The sum of two numbers is -47 the difference is -39 find the numbers
mash [69]

Answer:

x = -43

y = -4

Step-by-step explanation:

In this question, you will have to find the value of x in terms of y using one of the equations and substituting the value in the other equation or vice versa.

Let's assume the numbers x and y, now we write the expressions.

x + y = -47

x - y = -39

Take the second equation and find x.

<u>Calculations:</u>

x - y = -39 (Add y on both sides)

x = -39 + y

Now that you got the value of x in terms of y, we can substitute.

<u>Calculations:</u>

(-39 + y ) + y = -47

2y - 39 = -47

2y = -8

y = -8/2 = -4

y = -4

Now that we got y, we can substitute that value in any of the equations to find x.

x - 4 = -47 or x + 4 = -39

x = -43

4 0
2 years ago
Read 2 more answers
Divide using synthetic division: (2x^4+2x^3+-12x^2+x+6)/(x+3)​
kap26 [50]

Synthetic division yields

..... ||   2    2   -12    1      6  

-3  ||        -6    12    0    -3

= = = = = = = = = = = = = =

..... ||   2   -4     0    1      3

which translates to

\dfrac{2x^4+2x^3-12x^2+x+6}{x+3}=2x^3-4x^2+1+\dfrac3{x+3}

5 0
3 years ago
What is the graph of y &gt; x2-9.​
Yakvenalex [24]

Answer:

The 1st graph

Step-by-step explanation:

When you graph the equation in a graphing calc, you should be able to see that the graph most similar would be the 1st one.

8 0
3 years ago
Other questions:
  • Find the solutions to the equation by completing the square.
    15·1 answer
  • If f(x)=|x|+9 and g(x)=-6, which describes the value of (f+g)(x)
    7·2 answers
  • This is due by today, someone help me please!
    12·1 answer
  • Fill in the missing values in the table and answer the question. Scale Distance on map Distance in miles 1/4 inch = 1 mile 2.5 i
    7·1 answer
  • PLEASE HELP
    13·1 answer
  • Use the spinner to identify the probability to the nearest hundredth of the pointer
    11·1 answer
  • In Δ ABC, the sum of the measures of ∠A and ∠B is 47°. what is the measure of ∠C?
    11·1 answer
  • The data set represents the total number of people who bought bananas each hour at a grocery store 1,1,5,5,7,8,8,10,12
    7·1 answer
  • HELPPPPPPPP MEEEEE PLEASEEEE
    14·1 answer
  • 3 ounces of perfume for $99, 8 ounces for x
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!