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3 years ago

(I’ll give Brainliest)

Mathematics

1 answer:

Mamont248 [21]3 years ago

8 0

10 is 5 times as many as 2
or you could have
10 is 2 times as many as 5
hope this helps!

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If you had a 15 foot ladder, how far away from the base of a wall would you have to put it to reach a window 12 feet up?

Kruka [31]

Answer:

9.000000001

Step-by-step explanation:

If the hypotenuse is 15, the ladder, facing the right angle, and the opposite is 12 we need to use SOH to find the angle.

sin of angle is opposite / hypotenuse

sin of angle is 12 / 15

12/15 = 0.8

sin^-1 of 0.8 = 53.13010235

Angle is that

Then we do this again but a different equation

cos of angle is adjacent (x which we are looking for) / hypotenuse

cos of 53.13... is x / 15

(15 x cos of 53.13... )is x

So 15 x cos of 53.13... is 9.000000001 feet away.

5 0

3 years ago

Evaluate 5x-[21-(3-11)x] when x=-2

mart [117]

Answer:

-15

Step-by-step explanation:

(5)(−2)−(21−(3−11)(−2))

=−15

HAve a wonderful day Brainliest Please.

3 0

3 years ago

Rewrite the proportion 7:21 = 3:9 as a proportion using fractions.

Inessa [10]

Answer:

1/3 ig

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Kyle has a container of flour in the shape of a cylinder. The container has a diameter of 10 inches and a height of 8 inches. If

Anna [14]

81.7 ounces or 5.11 pounds, work is shown above if you need to show your work.

8 0

3 years ago

Heart beats 2,320 times during 20 minutes of rowing. While resting the heart is beating 16 times in 15 seconds. What is the diff

Mrac [35]

Answer: 0.87 times per second (Or 52.2 times per minute)

Step-by-step explanation:

You need to make the conversion from minutes to seconds.

Remember that 1 minute has 60 seconds. Then 20 minutes to seconds is:

$(20minutes)(\frac{60seconds}{1minute})=1,200seconds$

Find the number of times the heart beats in 1 second when it is rowing:

$x_1=\frac{(2,320times)}{1,200seconds}=1.93\ times\ per\ second$

Find the number of times the heart beats in 1 second when it is resting:

$x_2=\frac{(16times)}{15seconds}=1.06\ times\ per\ second$

Then the difference is:

$difference=(1.93-1.06)\ times\ per\ second\\difference=0.87\ times\ per\ second$

(Or 52.2 times per minute)

6 0

3 years ago

Read 2 more answers