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Minchanka [31]
3 years ago
13

PLEASE HELP!!!!!!!! FIRST TO ANSWER WILL GET BRAINLIEST!!!

Mathematics
1 answer:
liraira [26]3 years ago
3 0

Answer:

Step-by-step explanation:

A2+B2=C2

2(2)+2(2)=C2

4+4=C2

8=C2

C= About 2.8

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Households without a vehicle were not surveyed. D

Step-by-step explanation:

I just finished with Maps testing like 10 minutes ago XD good luck!!

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What is (9j+3)-(2j+6)
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Hope this helps!!!!.....

3 0
3 years ago
1) What is the area of square of length 5cm?
ASHA 777 [7]

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20 is my answer and the question is somehow confusing

7 0
2 years ago
Write your answer as a product with a whole number <br><br> 45z + 72
notka56 [123]

Answer:

9

Step-by-step explanation:

Rewrite the whole numbers as multiplication.

=9\cdot \:5z+9\cdot \:8\\=9\left(5z+8\right)\\= 9(*excluding parentheses)

6 0
2 years ago
On a cold day, hailstones fall with a velocity of 2i − 6k m s−1 . If a cyclist travels through the hail at 10i m s−1 , what is t
Paraphin [41]

Answer:

The velocity of the hail relative to the cyclist is V_{hc}=-8\hat{i}-6\hat{k}

The angle at which hailstones falling relative to the cyclist is \theta = 36.86^\circ

Step-by-step explanation:

Given : On a cold day, hailstones fall with a velocity of 2\hat{i}-6\hat{k}\text{ m/s} . If a cyclist travels through the hail at 10\hat{i} \text{ m/s}.

To find : What is the velocity of the hail relative to the cyclist and At what angle are the hailstones falling relative to the cyclist?

Solution :

The velocity of the hailstone falls is V_h=2\hat{i}-6\hat{k}\text{ m/s}

The velocity of the cyclist travels through the hail is V_c=10\hat{i} \text{ m/s}

The velocity of the hail relative to the cyclist is given by,

V_{hc}=V_h-V_c

Substitute the value in the formula,

V_{hc}=2\hat{i}-6\hat{k}-10\hat{i}

V_{hc}=-8\hat{i}-6\hat{k}

So, The velocity of the hail relative to the cyclist is V_{hc}=-8\hat{i}-6\hat{k}

Now, The angle of hails falling relative to the cyclist is given by

\theta = \tan^{-1}(\frac{-6}{-8})

\theta = \tan^{-1}(\frac{3}{4})

\theta = 36.86^\circ

So, The angle at which hailstones falling relative to the cyclist is  \theta = 36.86^\circ

4 0
3 years ago
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