2 years ago

What is 9 time 9? Please help.

Mathematics

2 answers:

Mandarinka [93]2 years ago

7 0

9 times 9 gives you 81

bazaltina [42]2 years ago

5 0

The answer is 81 because multiplication is just adding numbers. Just add 9+9 nine times.

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The components of a vector are Ax = –10 units and Ay = 8 units. What angle does this vector make with the positive x axis? g

Mandarinka [93]

Answer:

This vector make an angle of 141° with the positive x axis

Step-by-step explanation:

Refer the attached figure

Components of vector :

$A_x=-10 \\A_y = 8$

We are supposed to find What angle does this vector make with the positive x axis

$tan \theta =\frac{A_y}{A_x}\\tan \theta =\frac{8}{-10}\\\theta =tan^{-1}(\frac{8}{-10})\\\theta =tan^{-1}(\frac{8}{-10})=-38.65^{\circ}$

Now ,

$\alpha = 180-38.65=141.35^{\circ}$

So, this vector make an angle of 141° with the positive x axis

7 0

2 years ago

What is the third term of the sequence? a1 = k an = 2a n-1?

densk [106]

Answer:

Step-by-step explanation:

the answer is 24 I think

3 0

2 years ago

Read 2 more answers

3x+4/7-5x-4/7=3/7 A- (2) B (-2) C (4/3) D (-4/7)

oksano4ka [1.4K]

That one is realy hard

5 0

3 years ago

Seven times a number is equal to 9 more than 4 times the number. find the number

Yanka [14]

Represent 'a number' by x
7 times x equals 9 more than 4 times x
7 times x=9+4 times x
7x=9+4x
subtract 4x from both sides
3x=9
divide 3
x=3

the number is 3

5 0

2 years ago

16. A chef prepared five chocolate tortes for a dinner party. The guests consumed 2 5/16 tortes. How many tortes are left?

grandymaker [24]

2(5/16)=10/16
2/1=32/16
32/16-10/16=22/16
Answer: 1 6/16 tortes left

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2 years ago