Find the errors and correct the following mathematical sentences.​

Answer:

1)b 0.48

2) c 0.35

3) a 0.092

4) d 51.2

5) a 4

6) b0.6

7) d 3

8) a 3.33

9) a 37.125

10) c 9.1

Answer:

8 HOURS EXTRA JUST DO P.E.M.D.A.S ;]

Step-by-step explanation:

Answer:

the answer is :

25-30=-10

Answer:

Step-by-step explanation:

Triangle 1   given:  100° , 17 yds,  30 yds

Triangle 2 given: 30 ,17,18

law of cosines: c^2 = a^2 + b^2 − 2ab cos(C)

we'll also  need the formula for a SSS triangle

Cos(C) = a^2 + b^2 - c^2 / 2ab

keeping the above in mind we can now solve both triangles

c = AC for the first triangle

solve law of cosines for what we know

c^2= 17^2 + 30^2 - 2*17*30*Cos(100)

c = 36.96

now use SSS triangle  formula to find the angle C, but c = 17 now , not 36.96, that's b

C = arcCos(17^2+36.96^2-30^2/ 2*17*36.96)

C = 42.24°

now use 180 = 100 +42.24 +A   to solve the last angle

A= 37.75°

Triangle 1 solved

A= 37.75°

B= 100

C = 42.24°

a= 17

b=30

c=36.96

Triangle 2  

given a=17 , b= 18 , c =30

use SSS formula to find one angle, which ever one you want in this case

Cos(C) = a^2 + b^2 - c^2 / 2ab

C = arcCos(17^2+18^2-30^2 / 2*17*18

C= 117.966°

solve for A now

Cos(A) =b^2+c^2-a^2 / 2bc

A = arcCos(18^2+30^2-17^2/2*18*30)

A = 30.03

use 180 again to solve for last angle

180 = 117.966+30.03+B

32.001 = B

Triangle 2 solved

A = 30.03°

B= 32.001°

C= 117.966°

a=17

b=18

c=30

:P  whew  

Answer:

Length of parallel side 2 = 2.91 km

Step-by-step explanation:

Given figure is a trapezoid

Given:

Area of trapezoid = 16.3 km²

Length of parallel side 1 = 5.9 km

Height of trapezoid = 3.7 km

Find:

Length of parallel side 2

Computation:

Area of trapezoid = [Sum of parallel side/2]Height

Area of trapezoid = [(a+b)/2]h

[(5.9 + b)/2]3.7 = 16.3

Length of parallel side 2 = 2.91 km

9514 1404 393

Answer:

  240 ft by 480 ft

Step-by-step explanation:

Area is maximized when the long side is half the total length of the fence. That makes the short side (out from the river) be half the length of the long side.

The fenced field dimensions are 240 feet by 480 feet.

__

You can let x represent the length of the long side. Then the length of the short side is half the remaining fence: (960 -x)/2.

The total area is the product of these dimensions:

  A = x(960 -x)/2

We note that this is the equation of a parabola with zeros at x=0 and x=960. The maximum will be found on the line of symmetry, halfway between the zeros. That is at x = (0 +960)/2 = 480.

The area is maximized for a long-side dimension of 480 feet. The short sides are 240 feet.

Answer:

B

x + y = 712

8x + 4y = 4,256

Step-by-step explanation:

If x=the amount of adult tickets, and y=the amount of children's tickets, then the total amount of tickets (712) should be x+y. Our first equation: x+y=712

The total made from adult tickets is found by multiplying the amount of tickets by the price per ticket: 8x. The total made from children's tickets is found by multiplying the amount of tickets by the price per ticket: 4y.The total amount of money made (4256) is the sum of the amount made by adult tickets (8x) and the amount made by children's tickets (4y). Our second equation: 8x+4y=4256

Answer:

hmmmm im thinking

Step-by-step explanation:

Answer:

s= -2

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Perpendicular lines have slopes that are negative reciprocals. For example. if the slope of a line is 2, the slope of a line perpendicular to it would be [tex]-\frac{1}{2}[/tex]. If the slope of a line [tex]-\frac{1}{3}[/tex], the slope of a line perpendicular to it would be 3.

Negative reciprocals always have a product of -1, since the numerators cancel out and one of the values is negative.

I hope this helps!

Answer:

51ft, 17ft, 39ft

Step-by-step explanation:

longest = x

2nd = [tex]\frac{1}{3}[/tex]x

3rd = x - 12

P = 107

a + b + c = Perimeter

x + [tex]\frac{1}{3}[/tex]x + x - 12 = 107

[tex]\frac{7}{3}[/tex]x -12 = 107

[tex]\frac{7}{3}[/tex]x = 119

x = 51

[tex]\frac{1}{3}[/tex]x = 17

x - 12 = 39

Answer:

56

Step-by-step explanation:

The ratio is 1:4

14 * 4 = 56

Answer: 56

Step-by-step explanation:

8 ÷ 2 = 4 (cans) - it is 1 cup.

14 × 4 = 56 (cans) - it is 14 cups.

Answer:

N=433.31

Step-by-step explanation:

720(cos(53))=(n/720)720

n=720cos(53)

n=433.306

n=433.31

Hope this helps i aced this unit

Answer:

i dont know yet, ill try to figure it out        

Answer:

square root function is the correct answer

The solution is,  y = 2 ^ (x + 2) +3, is the function is shown in the graph below.

In mathematics, the graph of a function f is the set of ordered pairs, where {\displaystyle f(x)=y.} In the common case where x and f(x) are real numbers, these pairs are Cartesian coordinates of points in two-dimensional space and thus form a subset of this plane.

here, we have,

For this case we observe the cut point with the y axis in:

(0, 7)

The function that complies with this is:

y = 2 ^ (x + 2) +3

We have then:

y = 2 ^ (0 + 2) +3

y = 2 ^ (2) +3

y = 4 + 3

y = 7

Answer:

The answer for this case is given by:

y = 2 ^ (x + 2) +3

option 2

Hence, The solution is,  y = 2 ^ (x + 2) +3, is the function is shown in the graph below.

To learn more on graph click:

brainly.com/question/17267403

#SPJ7

Answer:

Step-by-step explanation:

sin 45 = x/12

x = 12 sin 45

x = 6√(2)

answer is D

Answer:

8

Step-by-step explanation:

8*8 = 64

b*h = a

Answer: 0.075

Step-by-step explanation: when you are working with percentages to decimals you want to move the decimal two places to the left. If you are working with decimals and you want to make it a percentage you would move the decimal two places to the right.

Answer:

7.5% = 0.075

Step-by-step explanation:

Whenever you're converting a percentage into a decimal, you multiply the percentage by 100, or move the decimal point two points to the left. So, 7.5% as a decimal is 0.075.

Answer: c

Step-by-step explanation:

Answer:

First, we should know what the slope-intercept formula is.

Y = MX + B

Where M is your slope, and B is your y intercept.

Let's do the easiest part first, finding our y-intercept. The y-intercept is where the the line intersects the y-axis. In this case, y = 1, because it intersects at (0, 1).

Now we have:

y = mx + 1

Next, we need to calculate the slope, or rise over run. M is presented as a fraction. The numerator is your rise (how high or low it goes), and the denomenator is your run (how far to the right or left it goes).

If it goes LEFT, the number is negative, if it goes RIGHT it is positive.

Also, pretty points are areas in which the line hits an exact coordinate. Using these points is easiest if you want to find the slope of the line.

We can see that the line hits a pretty point every time it goes one coordinate (box) to the right, and up three boxes. What this means it is rises three 3 points, and runs to the right, 1. This is shown as [tex]\frac{3}{1}[/tex]

So let's add that to the equation!

Answer:

It's approximately normal, because both sample sizes are at least 303030.

Step-by-step explanation:

Khan Academy

Answer:

-7 is bigger

-9 is bigger

-6 is bigger

7 is bigger

I think.....

-9,-8,-7,-6,-4

-9,-7,-6,4,7

-2-1,0,4,9

-8,-2,3,5,8 ?

I guess I didn't understand the question

Answer:

p->q .......................

Answer:24

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

12+12=24