A test has 40 questions. The test awards 2 points if the answer is correct and takes away 1 point if the answer is incorrect. A student answered 5 questions incorrectly. And got 35 questions correct. What was his score?

Answer:

is there any question?

so I can answer

Answer:

See below

Step-by-step explanation:

7)  a rectangle   12 x 8 = 96

     plus semi-circle   1/2  pi r^2 = 1/2 pi 4^2 = 25.132

          total = 121.132 m^2

8)  Circle area = pi r^2

       large circle   pi * 2^2  = 4pi

            MINUS the smaller one   pi 1.5^2 = 2.25 pi

                    total = 1.75 pi = 5.498 in^2

9) Square area = 10 x 10 = 100

      minus circle  pi r^2 = 25pi      total = 21.46  ft^2

Answer:

V= AOB × H

Step-by-step explanation:

The volume (V) of a prism is the area of the base (B) times the height (H).

Answer:

x=12

Step-by-step explanation:

[tex]4x=48\\\\\displaystyle \frac{4x}{4}=\frac{48}{4}\\ \\ x=12[/tex]

[tex]4x=48\\4(12)=48\\48=48[/tex]

26cm           10cm       11cm    

Step-by-step explanation:

Answer: I would say A because it makes the most sense

Step-by-step explanation:

Answer:

I believe it's [tex](-8)-0=-8[/tex]

Step-by-step explanation:

Just add the lines on the side and it is on the line and x and d are the same number. If it's wrong I'm so sorry!!

Answer:

642.96

Step-by-step explanation:

To find the surface area"

[tex]SA=2lw+2lh+2wh[/tex]

Insert measurements into the equation:

[tex]SA=2*17\frac{2}{5}*3+2*17\frac{2}{5}*13.2+2*3*13.2[/tex]

Now to go through the very tedious steps of actually solving the equation (we got this!)

Next: Addition

And we have our answer!

I hope this helps and please feel free to comment, give feedback, ask questions, and correct me if I am wrong!

Have a great day

:)

Answer:

d

                          Im pretty sure its d

Answer:

B.

Step-by-step explanation:

To dilate is to make something bigger. It says in the question that you dilate by a factor of 2, so multiply the length of the side by 2. This will get you 68.

As far as angles are concerned, angles do not change when the object is scaled bigger. So for the angle of A, the answer is still 28 degrees.

This leaves us with our final answer, which is B.

Answer:   4,-2

-2,-2

-3,-5

Step-by-step explanation:

Answer: 41 degrees

Step-by-step explanation:

Given Values : 90 degrees & 49 degrees

Solve : 90 + 49 = 139

Since the sum of all sides of a triangle is supposed to add up to 180 degrees, subtract 180 - 139, and you will end up with 41 degrees.

Calories increase by 25 each.
25, 50, ?, ? = 25, 50, 75, 100

Servings increase by 1/3 each. (1 = 3/3)

1/3, 2/3, 1, 4/3

Answer:

n = 32

Step-by-step explanation:

Given:

[tex]\frac{8}{12}=\frac{n}{48}[/tex]

Solve:

[tex]\mathrm{Cross\; Multiply:}[/tex]

[tex]\frac{8}{12}=\frac{n}{48}[/tex]

[tex]\mathrm{48\times8=384}[/tex]

[tex]\mathrm{384\div12=32}[/tex]

[tex]\mathrm{Hence,n=32}[/tex]

~[tex]\mathrm{[Kavinsky]}[/tex]

1. SA = P*L/2. As it's a square pyramid, P = 7*4 = 28 yd and SA = 28*4/2 = 28*2 = 56 sq yd.

2. SA = 2B+ph

B = area of the base (3*7 = 21), p = perimeter of the base (6+14=20), h = height (2)

==> 2B+ph = 42+22 = 64 sq. ft

3. SA = (Perimeter of the base × Length of the prism) + (2 × Base Area) = 32+10 * 16 + 2 * 80 = 32 + 160 + 160 = 320 + 32 = 352 sq. cm

4. SA = 6l^2 = 6*64 = 384 sq. in

5. Analogue to 1, SA = (7*4*5)/2 = (28*5)/2 = 14*5 = 70

Answer:

35

Step-by-step explanation:

see image

Answer:

34.september has the most adults

35. 30 was the least number of students to visit.

36. the children showed the largest drop between months.

37. 15 more children than adults in may

Step-by-step explanation: if you look at the chart key and the numbers put on the side you will be able to see the differences in the adults and children's information

Answer:

13.3, but you can't sell 0.3 so round to the nearest whole number, which is 13.

Step-by-step explanation:

Find the volume of the cone package.

[tex]V = \frac{\pi r^{2}h }{3} \\V=\frac{3.14(3^{2})(8) }{3} \\V= \frac{25.12(9)}{3} \\V = \frac{226.08}{3} \\V=75.36[/tex]

Now divide the total cubic inches, 1000, by the volume of one cone package.

1000/75.36 = 13.3

Answer:

5446 cm²

Explanation:

Area of triangular prism = Base × Height + Length × (perimeter of base)

Here given:

==========================================

Solve for Surface Area = 24 × 35 + 47 × (98) = 5446 cm²

Answer:

8/13

Step-by-step explanation:

There are total 26 red cards in the deck of 52 cards.

There are also 12 face cards in the deck ( which is 6 of them are red, while 6 of them are black)

Since we only need either one of them, 26 + 6 = 32

The probability of drawn a card that either red or a face card is 32/52

The simplest form of this fraction is 8/13.

Answer:

Here you go :)

Step-by-step explanation:

This is on Desmos

Answer:

1.5

Step-by-step explanation:

r=2Rcosθ

(x-1.5）² y²=2.25

The centre of the circle is (1.5 , 0) The radius is 1.5

Answer:

5.5

Step-by-step explanation:

2,3,3,4,5,7,8,8,8,10,10,12

The mean of this data is 7.5.  So what you are trying to figure out is the mean between 2 and 7.  Since that is 3 and 4 it would be 3.5.  So 3.5 is the Q1.  Now you have to figure out the mean between 8 and 12.  That is 9.  This is Q3.  You have to subtract 9-3.5 and that is the interquartile range. So 5.5 is the answer.  I hope that made sense.

Answer:

$15

Step-by-step explanation:

Since mark borrowed $2 he know has $2 debt so he gave sally 17$ which means he already paid 15$ extra in order to cover is debt

Answer:

Median cause there are no outliers

Step-by-step explanation:

its hard To explaIN but U should Ask Ur parents but basicaly what i did was find the mean and the medium and the range and i divide by 2 and see which one fitted in and it was median soo.

Answer:

18

Step-by-step explanation:

9 x 2 = 18

radius x 2 = diameter

Answer:

2. leopards and pirates

3. 25

Step-by-step explanation:

2.

leopards

15:10 is 3:2 when dividing by 5

pirates

12:8 is 3:2 when dividing by 4

3.

27+24=51

51÷2= 25.5