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luda_lava [24]
3 years ago
5

George took a test with a certain number of questions. Each question had the same value. He answered 10 questions incorrectly, w

hich resulted in an accuracy score of 60%. How many questions were on the test
Mathematics
1 answer:
stepan [7]3 years ago
3 0

10 questions = 40%

X question = 100%

40x = 1000

X = 25 questions

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Let u = <-4, 1>, v = <-1, 6>. Find -2u + 4v
Maksim231197 [3]

Answer:

<4,22>.

Step-by-step explanation:

This question involves the concepts of addition and scalar multiplication of vectors. It is given that the vector u = <-4, 1> and v = <-1, 6>. To find -2u, simply multiply -2 with the elements of u. This will give:

-2u = <-4*-2, 1*-2> = <8, -2>.

Similarly:

4v = <-1*4, 6*4> = <-4, 24>.

Hence,

-2u + 4v = <8, -2> + <-4, 24> = <8-4, -2+24> = <4,22>.

So the correct answer is <4,22>!!!

6 0
3 years ago
Perimeter of a square or a rectangle
Ira Lisetskai [31]

Answer:

perimeter of square = s+s+s+s

= 15+15+15+15

= 60 ft

4 0
3 years ago
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A stairway rises 6 feet 4 inches over a horizontal distance of 8 feet 6 inches. What is the diagonal length of the stairway
natali 33 [55]

Answer:

10.6 ft

Step-by-step explanation:

to find the diagonal length of the stairway we can use the pythagorean theorem or a^2 + b^2 = c^2

6'4" is also 6 1/3' or 19/3'

8'6" is also 8 1/2' or 17/2'

now square them both

361/9 + 289/4

make them have the same denominator

1444/36 + 2601/36

add them

4045/36

take the square root

10.6000524 is your answer

10.6 ft

7 0
1 year ago
WILL GIVE YOU BRAINLYEST!!!!
Kazeer [188]

Greetings I am BrotherEye

Answer: How find the volume of a triangular pyramid?

Triangular pyramid volume formula

In words: the volume of a triangular pyramid is one-third of the product of the base area and the pyramid's height

Step-by-step explanation:

Now in mathematical terms Use the formula for the volume of a triangular pyramid: V=13Ah , where A = area of the triangular base, and H = height of the pyramid.

Best of Luck!

8 0
3 years ago
At a basketball game, a team made 53 successful shots. They were a combination of 1- and 2-point
forsale [732]

Answer:

35 two pointers, 18 one pointers

Step-by-step explanation:

equations:

x + y = 53

x + 2y = 88

solving them:

y = 35

x = 18

8 0
2 years ago
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