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
geniusboy [140]
2 years ago
10

Help plz ASAP

Mathematics
1 answer:
Drupady [299]2 years ago
7 0

Answer:B

Step-by-step explanation:

You might be interested in
Can a triangle have angle measures as 140,43, and 7
Mariulka [41]

The angles in a triangle always add up to exactly 180 degrees.  To see if this can be a triangle, add up the given angle measures.  If the sum is not 180, then it cannot be a triangle.

140+43+7=190

A triangle CANNOT have the angles measures as 140, 43, and 7.

Hope this helps!!

3 0
3 years ago
The measure of one of the acute angles in a right triangle is 59°.
Over [174]

Answer:

31*

Step-by-step explanation:

right triangle means 90* so 90*-59* = 31*

6 0
2 years ago
Read 2 more answers
Please help me answer this question
sveta [45]

Answer:

its an isosceles triangle

Step-by-step explanation:

4 0
3 years ago
Find the standard equation of the parabola that satisfies the given conditions. Also, find the length of the latus rectum of eac
lakkis [162]

Answer:

The standard parabola

                                y² = -18 x +27

Length of Latus rectum = 4 a = 18

                         

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given focus : (-3 ,0) ,directrix  : x=6

Let P(x₁ , y₁) be the point on parabola

PM perpendicular to the the directrix L

                          SP² = PM²

                (x₁ +3)²+(y₁-0)²  = (\frac{x_{1}-6 }{\sqrt{1} } )^{2}

              x₁²+6 x₁ +9 + y₁² = x₁²-12 x₁ +36

                          y₁² = -18 x₁ +36 -9

                           y₁² = -18 x₁ +27

The standard parabola

                                y² = -18 x +27

    Length of Latus rectum = 4 a = 4 (18/4) = 18

                         

5 0
3 years ago
According to the latest survey the mean world lifespan is 68.8 years the university of Oregon wants to see if the average life s
pishuonlain [190]

Answer:

Step-by-step explanation:

We would set up the hypothesis test.

For the null hypothesis,

µ = 68.8

For the alternative hypothesis,

µ ≠ 68.8

This is a two tailed test.

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 26,

Degrees of freedom, df = n - 1 = 26 - 1 = 25

t = (x - µ)/(s/√n)

Where

x = sample mean = 72.8

µ = population mean = 68.8

s = samples standard deviation = 2.5

t = (72.8 - 68.8)/(2.5/√26) = 8.16

We would determine the p value using the t test calculator. It becomes

p < 0.00001

Assuming a significance level of 0.05, then

Since alpha, 0.05 > than the p value, then we would reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the average life span of the residence of Oregon differs from the world average.

4 0
3 years ago
Other questions:
  • Jerome bought 8 packs of baseball cards at a garage sale each pack had 10 cards he gave his younger sister 3 cards from each pac
    6·2 answers
  • What are like terms? How do you combine them? Can you give an example?
    5·2 answers
  • Write an expression for the calculation 4 times the difference of 10 and 8 minus 3
    7·1 answer
  • 6x^2-x&lt;2 solve, show your answer on a number line. State your answer in interval notation
    5·1 answer
  • What is 4y-x+7+5y+3x-9
    9·1 answer
  • 1. Complete this statement: A polygon with all sides the same length is said to be ______. (1 point)
    14·2 answers
  • The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribut
    9·1 answer
  • PLEASE HELP!!!!!!
    7·1 answer
  • A right triangular prism and its net are shown below.<br> (All lengths are in centimeters.)
    5·1 answer
  • [48 (72-12) -225] ÷ 9<br><br>someone pls help​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!