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
Natali [406]
2 years ago
5

Tan^2 70° -sec^2 70°​

Mathematics
1 answer:
kipiarov [429]2 years ago
4 0

Answer:

-1

Step-by-step explanation:

We need to find the value of tan² 70° -sec² 70°​.

We know that,

\sec^2\theta-\tan^2\theta=1 ...(1)

We can write the given expression as :

tan² 70° -sec² 70° = -(-tan² 70° +sec² 70°)

=-(sec² 70°-tan² 70°)

Using identity (1)

=-(1)

= -1

Hence, the value of the given expression is -1.

You might be interested in
The Patels took out a 15-year mortgage. How many monthly payments will they have to make on this mortgage?
VikaD [51]
There are 12 months in a year, and 15 years to pay the mortgage.

Therefore you are simply doing 12 multiplied by 15.

12 × 15
= 180

So your answer is C. 180
4 0
3 years ago
1. Cindy did an experiment. She started out with 700 bacteria cells. She found that the growth rate of the bacteria cells was 4.
Brums [2.3K]

Answer:

  • This is an exponential function of the form y=a(b^x)
  • We will use the following
  • y for the number of bacteria at a given time
  • x for the time
  • a for the starting number of bacteria, which is 700
  • b for the base of the exponent
  • so lets find b, we need the following:
  • r, which will be our rate, which is 4.3% or 0.043, so
  • b=1+r\\b=1+0.043\\b=1.043
  • With this info, let's substitute, and get the equation as the answer: y=700(1.043^x)
  • Put that into desmos, (I attached a screenshot for you)

8 0
2 years ago
How many times does 0.4 fl oz go into 60 ml
Anna71 [15]
1 oz= 29.5735296 ml

Convert ounces to milliliters by multiplying milliliters in 1 ounce by 0.4 ounces.

=0.4 oz * 29.5735296 ml/oz
=11.829 ml

Divide 60 ml by the portion size (11.829 ml)

=60 ÷ 11.829
= 5.07 times

ANSWER: 5.07 times

Hope this helps! :)
6 0
3 years ago
Question 3
insens350 [35]
I think it is the 3 one
6 0
3 years ago
Liam and his sister watched a cartoon movie that was 2 hours and 50 minutes long. After the movie, they played a card game for 1
IceJOKER [234]
2:50  
1:14   
0:14
--------
4:18 hours

They came back at 2:45

So, the movie started at 11:27 AM
7 0
3 years ago
Other questions:
  • -14xxxx42xx5yy8 simplify
    5·1 answer
  • Help meh pls
    10·1 answer
  • Find the x- and y- intercepts of the line with the equation 3x+4y=-12
    12·1 answer
  • What is the solution to f(x) = g(x)
    9·1 answer
  • A baseball is thrown into the air from a height of 5 feet. The ball reaches a maximum height of 43.5 feet and spends a total of
    7·2 answers
  • Which statement about the graph is true?
    12·1 answer
  • 8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a month. If
    14·1 answer
  • Which additional fact is needed to prove
    6·1 answer
  • Please help asap im confused
    9·2 answers
  • What two numbers have a product of -15 and a sum of -2?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!