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
lara [203]
3 years ago
12

A 28 B42 C47 D 33 Please help

Mathematics
1 answer:
netineya [11]3 years ago
5 0
D.) There are always 180 degrees in triangles. 147 is already shown, so subtract that from 180. That gives you 33.
You might be interested in
Choose all of the equations of vertical lines.
tester [92]

Answer:

a is the answer cd

7 0
3 years ago
Simplify the expression. Select the best answer from the choices below.<br> 2 - 8 + 3x + 8
skad [1K]

Answer:

3x + 2

Step-by-step explanation:

7 0
3 years ago
Math!!!! Fined the area of the triangle
Yanka [14]

Answer:

Area = 40 cm²

Step-by-step explanation:

Area of triangle is derived by the formula,

Area = \frac{1}{2}(\text{Base})(\text{Height})

Length of Base = 8 cm

Height of the triangle = 10 cm

Therefore, area of the given triangle = \frac{1}{2}(8)(10)

                                                             = 40 cm²

3 0
3 years ago
As the limit of x goes to 3 from the left find the limit of (x/ sqrt x^2 -9)
Dimas [21]
\displaystyle\lim_{x\to3^-}\frac x{\sqrt{x^2-9}}=\lim_{x\to3^-}\frac x{\sqrt{x^2}\sqrt{1-\frac9{x^2}}}=\lim_{x\to3^-}\frac x{|x|\sqrt{1-\frac9{x^2}}}

Since x>0, you have |x|=x and the limand reduces to

\displaystyle\lim_{x\to3^-}\frac1{\sqrt{1-\frac9{x^2}}}

For x>3, you have \sqrt{1-\frac9{x^2}}>0 since \dfrac9{x^2} will always be smaller than 1, which means \dfrac1{\sqrt{1-\frac9{x^2}}}\to+\infty
8 0
4 years ago
In a manufacturing process, a machine produces bolts that have an average length of 3 inches with a variance of .03. If we rando
mars1129 [50]

Answer: 0.8413

Step-by-step explanation:

population mean = 3

population variance = 0.03

sd (standard deviation) = √0.03

Let x = sample mean

x has a mean of 3 and sd of √0.03/√3 = √0.01 = 0.1

And we can aprox the sample mean distribution using a normal distribution

Note: this approximation maybe is not so good (n = 3)

with mean = 3 and sd = 0.1

z = (x-3)/0.1 has a standard normal distribution

P(x<3.1) = P(z<(3.1-3)/0.1) = P(z<1) =0.8413

8 0
3 years ago
Other questions:
  • AC= 7•sin(40 degrees) ≈ 4.5
    10·1 answer
  • Two consecutive even integers have a sum of 74. What are the integers?
    6·2 answers
  • Name a pair of alternate interior angles in the picture below.
    5·2 answers
  • What is the probability that two people chosen at random were born on the same day of the week? b)What is the probability that i
    8·1 answer
  • The perimeter of a rectangular rug is 24 feet. The length of the rug is 1 2/5 its width. What is the area of the rug?
    12·2 answers
  • T= 2pi times the sqrt of l/g (l=2.0m; g= 10m/s^2
    15·1 answer
  • What is the relationship between multiplying and factoring?
    14·2 answers
  • Using the picture below, which of the following algebraic expressions could be shown by the picture?
    11·1 answer
  • A rectangular prism has a length of 16in, a height of 15in, and a width of bin. What is
    13·1 answer
  • Need help ASAP before 3:30......
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!