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
wlad13 [49]
3 years ago
12

Anna,Vickie, and Luanna are sisters. Anna is 3 years older thank Vickie, and Luanna is 2 years younger than Vickie. Use v for Vi

ckie's age. Write expressions to show the ages of the other two sisters.
Anna's age:_____
Luanna's age:_____
Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0
Anna= a
Vickie= v
Luanna= l

a is 3 years older that v
l is 2 years younger than v

Anna's age; 3+v
Luanna's age; v-2
You might be interested in
What is cos theta when sin theta = sqrt 2/3
Fittoniya [83]

<u>Answer:</u>

Value of cosθ is ±√7/3 .

<u>Step-by-step explanation:</u>

According to the Question , value of :

\red{\implies sin\theta = \dfrac{\sqrt2}{3}}

And , we know the identity of sine and cosine as ,

\boxed{\pink{\sf\implies sin^2\theta + cos^2\theta = 1} }

<u>Using</u><u> </u><u>,</u><u> </u><u>this</u><u> </u><u>ident</u><u>ity</u><u> </u><u>we</u><u> </u><u>have</u><u> </u><u>;</u><u> </u>

\implies sin^2\theta + cos^2\theta = 1 \\\\\implies \bigg( \dfrac{\sqrt2}{3}\bigg)^2 + cos^2\theta = 1 \\\\\implies \dfrac{2}{9} + cos^2\theta = 1 \\\\\implies cos^2\theta = 1 - \dfrac{2}{9} \\\\\implies cos^2\theta = \dfrac{9-2}{9} \\\\\implies cos\theta = \sqrt{\dfrac{7}{9}} \\\\\underline{\boxed{\blue{\bf \implies cos\theta = \pm \dfrac{\sqrt 7 }{3}}}}

Now , here since θ is in 2nd quadrant and in 2nd quadrant cos is negative . Hence ,the value of cos will be :

\boxed{\orange{\bf \implies cos\theta =-\dfrac{\sqrt7}{3}}}

3 0
2 years ago
The segment GH and GI are tangent
vodka [1.7K]

Answer:

  OG = 8.7

Step-by-step explanation:

The angle a tangent makes with a radius at the point of tangency is a right angle. That means ΔOGH is a right triangle.

The tangents to a circle from an external point are congruent, so GH = GI = 6.3. Now we know the sides of the right triangle are of lengths 6 and 6.3. The hypotenuse, OG is found using the Pythagorean theorem.

  OG² = OH² +GH²

  OG² = 6² +6.3² = 75.69

  OG = √75.69 = 8.7

The length of OG is 8.7 units.

______

<em>Additional comment</em>

You might recognize this triangle as a 0.3 multiple of the Pythagorean triple (20, 21, 29).

8 0
2 years ago
Who tryna do my edualastic test for math
lianna [129]

Answer:

umm i can try to help you with the test

Step-by-step explanation:

3 0
3 years ago
A bouncy ball is dropped from a height of 16ft and always rebounds of the distance of the previous fall.
nika2105 [10]
16x5=80 cause if it bounces 16 times 5 times then
4 0
2 years ago
Read 2 more answers
Do you think x and x by the power of 2 are like terms? Explain using words, diagrams, tables etc.
natali 33 [55]

Answer:

No

Step-by-step explanation:

No, because x + x^2 cannot be grouped together.

8 0
3 years ago
Other questions:
  • Need help on 41-44 please
    6·1 answer
  • The ages of dogs at an animal shelter are normally distributed with a mean of 3.9 years and a standard deviation of 1.2 years.
    12·1 answer
  • What is the scientific notation for 92100<br>​
    9·1 answer
  • Arrie is planning her birthday party at a restaurant. She cannot spend more than $75 on the party. The cost per person for the m
    9·1 answer
  • Which expression is equivalent to
    14·2 answers
  • Write the equation, in general form, of a line with a slope of 1 and a y-intercept of -1.
    10·1 answer
  • Lets find the sizes of unknown angles​
    9·1 answer
  • The price of gasoline drops from $1.00 per
    10·1 answer
  • The length of a swimming poollane
    8·1 answer
  • In a bike shop there is a total of 120 bikes. If mountain bikes make up 10% of the total bikes in the shop how many mountain bik
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!