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
Marianna [84]
3 years ago
11

State the place value of:. (i) 8 in 287​

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Answer:

80

Step-by-step explanation:

because 8 is in tens place

so it´s value is 8*10=80

You might be interested in
What dose this = to? triangles = to 180 buts all i know
lara31 [8.8K]

7. Straight lines are also = to 180°


If you look at the diagram, when you add the two angles together, they form a straight line.

Since the angles add up to 180°, you can do:

(x + 25)° + (4x + 5)° = 180°

x + 25 + 4x + 5 = 180        Combine like terms

5x + 30 = 180         Subtract 30 on both sides

5x = 150       Divide 5 on both sides

x = 30

3 0
3 years ago
A veterinarian does research on the causes of enteroliths, stones that develop in the colon of horses. She suspects that feeding
dsp73

Answer:

On average, horses with and without enteroliths are fed the same amount of alfalfa per month

Step-by-step explanation:

Hello!

The veterinarian wants to research if eating alfalfa causes horses to have enteroliths.

The study variables are:

X₁: number of alfalfa flakes eaten over a month by a horse with enteroliths.

X₂: number of alfalfa flakes eaten over a month by a horse free of enteroliths.

She calculated a CI interval, with level 1 - α and the interval contained the cero.

With a significance level α, the hypotheses are:

H₀: μ₁ - μ₂ = 0

H₁: μ₁ - μ₂ ≠ 0

To decide whether you should reject or not the null hypothesis using a Confidence Interval is the following:

If the CI contains the number stated in the null hypothesis, the decision is to not reject the null hypothesis.

If the CI doesn't contain the number stated in the null hypothesis, then the decision is to reject the null hypothesis.

Since the interval contains the cero, if 1 - α and α are complementary, the decision is to reject the null hypothesis.

This means that at a level of significance of α, you can conclude that there is no difference between the population means of the numbers of alfalfa flakes eaten by horses with or without enteroliths.

I hope it helps!

7 0
3 years ago
6x(0,5x+3)+3x(1-x)-(1-10x)=7
Eddi Din [679]

Answer:

answer<em> </em><em>is</em><em> </em>

Step-by-step explanation:

ok ok ok ok ok ok ok ok ok ok ok ok

7 0
3 years ago
Use the discriminant to determine how many real number solutions exist for the quadratic equations -4j+3j-28=0
aleksandr82 [10.1K]
<span>the correct equation is
- 4j² + 3j - 28 =0

 ax² + bx + c,
 a = -4, b=3  c =- 28.
The discriminent D = b² - 4.a.cD = 3² - 4(-4)(-28)D = -439 
If D ≥ 0 there are either 2 roots or one double if = 0)if D< 0, there are no real roots (but 2 imaginary roots)Since D < 0, then there is no real roots
 The answer there is no real roots</span>
8 0
3 years ago
The Tabletop Games club, a student-led campus group, hosted a virtual concert last week to raise awareness about their club and
yarga [219]

Answer:

um i don't know this (i do im just lazy as heck)

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • A boy weighs 44 pounds. How much does he weigh in kilograms
    11·1 answer
  • Please help, thanks a lot
    8·1 answer
  • An array with m rows and n columns is not: A: An m-by-n array. B: An n-by-m array. C: A two-dimensional array. D: An n times m d
    8·1 answer
  • The weight in pounds of a baby in the first six months of life can be modeled by the
    15·1 answer
  • Who painted the larger fraction of their ceiling?
    5·1 answer
  • What is the value x in the solution to this system equations <br><br> 3x-5y=22<br> Y=-5x+32
    15·1 answer
  • Six grape fruit cost $5.34. How much does one grape fruit cost????
    15·2 answers
  • Factor completely 4xy + 9x + 24y + 54.
    13·2 answers
  • Solve for x or find x​
    7·1 answer
  • Kiara gets to spin the big prize wheel, which has a radius of 2 meters. What is the prize wheel's area? PLZ HELP me
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!