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4 years ago

Can you please help please and i will give you a Brainiest please

Mathematics

2 answers:

ella [17]4 years ago

8 0

Answer:

5 grams

Step-by-step explanation:

5*9=45

kakasveta [241]4 years ago

8 0

Answer:

I think the answer is 5 grams

Sorry if it is not correct

Step-by-step explanation:

I think that it is 5 grams because 45 ÷ 9= 5

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Honolulu, hawaii, received 9.14 inches of precipitation fir all if 2001. In one day 3.67 inches of rain fell. How maby inches if

Molodets [167]

5.47 inches of rain

Hope this helps!

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3 years ago

1 exponent 3 (5 Exponent2-7) divided by 3

STALIN [3.7K]

1 over nine thousand three hundred seventy five

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4 years ago

Which equation can be used to solve for b? Triangle A B C is shown. Angle A C B is 90 degrees and angle C B A is 30 degrees. The

STALIN [3.7K]

Answer:

$b=(8)tan(30\°)$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC, the tangent of angle of 30 degrees is equal to divide the opposite side to the angle of 30 degrees (AC) by the adjacent side to the angle of 30 degrees (BC)

$tan(30\°)=AC/BC$

substitute the given values

$tan(30\°)=b/8$

Solve for b

$b=(8)tan(30\°)$

8 0

3 years ago

Read 2 more answers

A polygon has vertices A(3, 3), B(3, 6), and C(9, 3). Find the area of the polygon. NEED IT ASAP

avanturin [10]

<h3>Answer: 9 square units</h3>

Explanation:

The diagram is shown below.

Side AC is the base which is 6 units long (since 9-3 = 6)

Side AB is the height which is 3 units

area = base*height/2 = 6*3/2 = 18/2 = 9

3 0

2 years ago

On a windy day William found that he could travel 10 mi downstream and then 2 mi back

tatiyna

Answer:

The top speed of William's boat was 45 mph

Step-by-step explanation:

Let

x -----> represent the rate of the boat in still water in mph

we know that

The speed or rate is equal to divide the distance by the time

speed=distance /time

time=distance/speed

<em>Downstream</em>

speed=(30+x) mph

distance=10 mi

time1=10/(30+x)

<em>Upstream</em>

speed=(x-30) mph

distance=2 mi

time2=2/(x-30)

The sum of the time downstream plus the time upstream must be equal to 16 minutes

Convert minutes to hours

$16\ min=16/60\ h$

$\frac{10}{x+30} +\frac{2}{x-30}=\frac{16}{60}$

Multiply by (x+30)(x-30) both sides

$10(x-30)+2(x+30)=\frac{16}{60}(x^2-900)\\10x-300+2x+60=\frac{16}{60}x^2-240\\12x-240=\frac{16}{60}x^2-240\\\frac{16}{60}x^2-12x=0$

Multiply by 60 both sides

$16x^2-720x=0$

Divide by 16 both sides

$x^2-45x=0\\x(x-45)=0$

The solution is x=45\ mph

3 0

3 years ago