MATHEMATICS MIDDLE SCHOOL

Enter the value of arccos(−0.32) as a decimal to the nearest hundredth of a degree in the box.

Answers

Answer 1

Answer:

arccos(−0.32)

108.66 degrees

Answer 2

Answer:

Answer:

$\theta=108.66\°$

Step-by-step explanation:

Let

$\theta$ -------> the angle

we know that

$cos(\theta)=-0.32$

using a calculator

$arccos(-0.32)=cos^(-1)(-0.32)= 108.66\°$

Related Questions

Elsie bought a video game for $85.00. If the store charges 170% of its cost for the game, how much is the store’s profit?
A small, test batch of lemonade used 1/4 cups of sugar added to 1 cup of water and 1/4 cup of lemon juice. After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water. How much sugar should be added so that the large batch tastes the same as the test batch?
What is the volume of a cuboid measuring 5cm by 6cm by 7cm
Freddy is helping buy ingredients for salads for the school spaghetti dinner. He bought 10 pounds of onions at $0.69 per pound, 100 pounds of tomateos at $0.99 pounds, 1,000 pounds of bread crumbs at $0.09 per pound, and 100 pounds of lettuce at $0.69 per pound. Which of the things he bought cost the most?
26 points of the second floor of 5236 is how many more ?

A pillow that usually costs $18 is marked down 25%. Which expressions can be used to find the new price of the pillow?

Answers

Answer:

x = 18-(0.25×18)

Step-by-step explanation:

The price of the pillow = $18.00

cost is marked down = 25% = $(25)/(100)$ = 0.25

Let the new price be x

The expression that can be used to find the new price of the pillow will be

x = 18-(0.25×18)

n= new price

n=18-(18*0.25)

Help please! I have choral practice...

Answers

This polygon is composed of a right triangle and a parallelogram.

The area of right angle :
$A_\Delta=(1)/(2)\cdot15\cdot8=(1)/(2)\cdot120=\boxed{60\ (cm^2)}$

The area of the parallelogram:
$A_P=15\cdot(13-8)=15\cdot5=\boxed{75\ (cm^2)}$

The area of the polygon is equal: $A=A_\Delta+A_P$

Therefore, the answer is:
$\boxed{\boxed{A=60\ cm^2+75\ cm^2=135\ cm^2}}$

Slice the picture in half, across the middle dotted line.

The top half is a triangle. Its base is 15cm and its height is 8cm .
Area of a triangle is (1/2) (base x height) = (1/2) (120cm²) = 60 cm².

The bottom half is a parallelogram. Its base is 15cm and its height is 5cm.
Area of a parallelogram is (base x height) = (15cm x 5cm) = 75 cm².

Add the two pieces together. (60cm²) + (75 cm²) = 135 cm²

Breathe from the diaphragm, enunciate, and watch the conductor.

the number of red beads sheila has is four times as many as the number of green beads she has.there are 75 red and green beads.how many red beads does sheila have

Answers

75 divided by 5 = 15 so 15+15+15+15=60 she has 60 red beads and 15 green hope this helps

x - green beads
4x - red beads

$x+4x=75\n5x=75\nx=15\n\boxed{4x=60}$

Solve the problem explain your answer 6/7m = 5/6

Answers

$(6)/(7)m = (5)/(6) \ \ / \cdot 42\n \n6 \cdot 6m =7*5\n \n36m=35\ \ /:36 \n \nm =(35)/(36)$

A cone has a diameter of 12 in. and a height of 16 in.What is the volume of the cone?

Use 3.14 as an approximation for pi and express your final answer in hundredths.

Answers

V=πr² $(h)/(3)$

Radius = 12/2 = 6 in
Height = 16 in

V = 3.14*6²*16/3
V = 602.88

The volume would be: Volume = 602.88 in^3

The formula for the Volume of a Cone is $(1)/(3)$ $\pi$ r²h
Let us substitute:
V= $(1)/(3)$ ×3.14×6²×16
=602.88 in³
The radius is half the diameter.(12in=d,r= $(d)/(2)$ = $(12)/(2)$ = 6 in)
pi was taken as 3.14

Emma drank 1/4 of a milk shake in 1/12 of a minute. How many minutes will it take to drink the full shake?Mike plays 1/2 of a song in 1/8 of a minute. How many minutes will he need to a full song?

Answers

a) The time for Emma to drink one full shake of milk is given by the equation E = 1/3 of a minute = 20 seconds

b) The time for Mike to play a full song is given by the equation M = 1/4 of a minute = 15 seconds

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the time for Emma to drink one full shake of milk be E

Now , the equation will be

The time for Emma to drink 1/4 of a milk = 1/12 of a minute

So , the time for Emma to drink one full shake E = 4 x time for Emma to drink 1/4 of a milk

Substituting the values in the equation , we get

The time for Emma to drink one full shake E = 4 x ( 1/12 )

On simplifying the equation , we get

The time for Emma to drink one full shake E = 4/12

The time for Emma to drink one full shake E = 1/3 of a minute

The time for Emma to drink one full shake E = 20 seconds

Let the time for Mike to play a full song be M

Now , the equation will be

The time for Mike to play 1/2 of a song = 1/8 of a minute

So , the time for Mike to play a full song M = 2 x time for Mike to play 1/2 of a song

Substituting the values in the equation , we get

The time for Mike to play a full song M = 2 x ( 1/8 )

On simplifying the equation , we get

The time for Mike to play a full song M = 2/8

The time for Mike to play a full song M = 1/4 of a minute

The time for Mike to play a full song M = 15 seconds

Hence , the equations are solved

To learn more about equations click :

brainly.com/question/19297665

#SPJ2

1/4*4=1 (The entire shake)

1/12*4=1/3 of a minute

Thee answer to the 1st question is 1/3 of a minute

1/2*2=1 (The entire song)

1/8*2=1/4 of a minute

The answer to the 2nd question is 1/4 of a minute

Other Questions

20. AB is 25 mm, AC is 45 mm. Find BC.(6)- ده

A badminton court has an area of 880 square feet. The width of the court is 20 feet. What is the length of the badminton court?

Solve 5x - 3y = 9 for y.

Write a decimal that is equivalent to three and ten hundredths