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
MakcuM [25]
3 years ago
13

Two-thirds of Tyrone's books are mystery novels. Tyrone has 42 books How many mystery novels does he have ?

Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0
2/3 times 42 books = 28 books
You might be interested in
A rock is thrown upward from a bridge that is 57 feet above a road. The rock reaches its maximum height above the road 0.76 seco
bekas [8.4K]

answer:

f(t) = -9.9788169(t -0.76)^2 +57

Step-by-step explanation:

On this question we see that we are given two points on a certain graph that has a maximum point at 57 feet and in 0.76 seconds after it is thrown, we know can say this point is a turning point of a graph of the rock that is thrown as we are told that the function f determines the rocks height above the road (in feet) in terms of the  number of seconds t since the rock was thrown therefore this turning point coordinate can be written as (0.76, 57) as we are told the height represents y and x is represented by time in seconds. We are further given another point on the graph where the height is now 0 feet on the road then at this point its after 3.15 seconds in which the rock is thrown in therefore this coordinate is (3.15,0).

now we know if a rock is thrown it moves in a shape of a parabola which we see this equation is quadratic. Now we will use the turning point equation for a quadratic equation to get a equation for the height which the format is f(x)= a(x-p)^2 +q  , where (p,q) is the turning point. now we substitute the turning point

f(t) = a(t-0.76)^2 + 57, now we will substitute the other point on the graph or on the function that we found which is (3.15, 0) then solve for a.

0 = a(3.15 - 0.76)^2 + 57

-57 =a(2.39)^2  

-57 = a(5.7121)

-57/5.7121 =a

-9.9788169 = a      then we substitute a to get the quadratic equation therefore f is

f(t) = -9.9788169(t-0.76)^2 +57

4 0
2 years ago
rectangular prism ,wit measurements of 1.2 ft wide,3 ft long, and 4.5 ft tall.What is the volume of the crate in cubic inches?
Taya2010 [7]
Volume of a rectangular prism is l*h*w
1.2*3*4.5= 16.2
The answer is 16.2 cubic inches
3 0
2 years ago
Help asap pleaseeee (if u do ily)))
n200080 [17]

Answer:

B) 120

Step-by-step explanation:

180 - 60 = 120

Hope that helps!

4 0
2 years ago
Read 2 more answers
A triangle ABC is inscribed in a circle, such that AB is a diameter. What are the measures of angles of this triangle if measure
Katen [24]

Answer:

∠C=90°

∠A=67°

∠B=23°

Step-by-step explanation:

For angle C:

  Thales' Theorem states that an angle inscribed across a circle's diameter is always a right angle.

  Therefore, since AB is the diameter(hypotenuse) then angle C is the right angle. (90°)

For Angle A:

  The measure of arc BC= 134 degrees. We can just use a formula for an inscribed triangle. ∠A = 1/2 (mBC)

  ∠A= (1/2)134

  ∠A= 77°

For angle B:

  All triangle angles all add up to 180. We can just subtract angles A and C from 180°:

  ∠B = 180-(90+67)

  ∠B = 23°

8 0
3 years ago
Can someone please answer A and B please?
marta [7]

2 bags

7 apples


A) Instead of a lets say:

a = 1, 2 , 3

If a =1  then, (you already know there are 2 bags) you have 1 apple in each bag, making total of 2 apples

If a =2 then you are having 2 apples in each bag making total of 4 apples

If a =3, 3 apples in each bag, making total of 6 apples

Conclusion:

2 * 1 = 2

2 * 2 = 4

2 * 3 = 6

See the difference & pattern here

Now lets do with a

2 * a = 2a


B) If a = 6

then,  2*6 = 12

lets continue from a =3

2*4=8

2*5=10

2*6=12

See the pattern again


Tip: Drawing making problem understand better.

6 0
3 years ago
Other questions:
  • Subtract 5m + 2 from 9m
    8·1 answer
  • hector is five years less than double mary's age. Mary is 12 years old. how many years old is Hector?
    7·1 answer
  • Jay bought a cell phone that was originally sold for $126. It was on sale for 33 1/3% off the original price. How much did he pa
    10·2 answers
  • Can y'all help me please because I don't get it
    12·1 answer
  • Can You please help me cause I'm gangsta Simplify (5^-2)^4 ​
    5·1 answer
  • . A right triangle has one leg with a length of two. Give an example of possible lengths for the other leg and the hypotenuse.
    8·1 answer
  • I WILL AWARD BRAINLIEST!!!!!!!!!!! PLEASE HELP!!!!!!!!! SOLVE A, B, C, AND D!!!!
    9·1 answer
  • Andrew and his father are scuba diving at -38 feet and Tackle Box
    10·1 answer
  • How much 9% saline solution should be mixed with 80 Cc of a 17% saline solution to produce a 13% saline solution?
    11·1 answer
  • Graph the linear equation.<br><br><br> y+4=25(x−3)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!