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2 years ago

Please help pls help mEE THIS IS REALLY CONFUSING MARKING BRAINlIST AND GIvinG 50 POINTS IF CORRECT!!

Mathematics

2 answers:

Flura [38]2 years ago

6 0

As it's 7:2

The variation is direct

Difference between x and y must increase in big number as x and y increases

Option D is correct in that manner

Let's double check

7:2
14:4
28:8
56:16

Ann [662]2 years ago

4 0

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<h2>If you found this useful, please mark it as the BRAINLIEST.</h2><h2>XD</h2><h2 /><h2>Have a nice day ツ</h2><h2 />

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Calculate the area and volume of 3.3 m and 6.2 m

Andre45 [30]

Answer:

Area is 20.46

Step-by-step explanation:

Area is length × breadth

6.2 × 3.3 = 20.46

The volume can't be found since there is no height

PLEASE MARK BRAINLIEST

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2 years ago

List the opposite of the following numbers:<br> -4, 1, -2.5, 101, 1/2

maksim [4K]

Answer:

Step-by-step explanation:

The opposite of :-

-4=4

1= -1

-2.5= 2.5

101 = -101

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3 years ago

A point H is 20m away from the foot of a tower on the same horizontal ground. From the point H, the angle of elevation of the po

astra-53 [7]

Answer:

a. See Attachment 1

b. $PT = 12.3\ m$

c. $HT = 31.1\ m$

d. $OH = 28.4\ m$

Step-by-step explanation:

Calculating PT

To calculate PT, we need to get distance OT and OP

Calculating OT;

We have to consider angle 50, distance OH and distance OT

The relationship between these parameters is;

$tan50 = \frac{OT}{20}$

Multiply both sides by 20

$20 * tan50 = \frac{OT}{20} * 20$

$20 * tan50 = OT$

$20 * 1.1918 = OT$

$23.836 = OT$

$OT = 23.836$

Calculating OP;

We have to consider angle 30, distance OH and distance OP

The relationship between these parameters is;

$tan30 = \frac{OP}{20}$

Multiply both sides by 20

$20 * tan30 = \frac{OP}{20} * 20$

$20 * tan30 = OP$

$20 * 0.5774= OP$

$11.548 = OP$

$OP = 11.548$

$PT = OT - OP$

$PT = 23.836 - 11.548$

$PT = 12.288$

$PT = 12.3\ m$ (Approximated)

--------------------------------------------------------

Calculating the distance between H and the top of the tower

This is represented by HT

HT can be calculated using Pythagoras theorem

$HT^2 = OT^2 + OH^2$

Substitute 20 for OH and $OT = 23.836$

$HT^2 = 20^2 + 23.836^2$

$HT^2 = 400 + 568.154896$

$HT^2 = 968.154896$

Take Square Root of both sides

$HT = \sqrt{968.154896}$

$HT = 31.1\ m$ <em>(Approximated)</em>

--------------------------------------------------------

Calculating the position of H

This is represented by OH

See Attachment 2

We have to consider angle 50, distance OH and distance OT

The relationship between these parameters is;

$tan50 = \frac{OH}{OT}$

Multiply both sides by OT

$OT * tan50 = \frac{OH}{OT} * OT$

$OT * tan50 = {OH$

$OT * 1.1918 = OH$

Substitute $OT = 23.836$

$23.836 * 1.1918 = OH$

$28.4= OH$

$OH = 28.4\ m$ <em> (Approximated)</em>

5 0

3 years ago

How to multiply decimals when not using models

sukhopar [10]

Answer:

You multiply it like normal numbers. But when you do, count how many numbers are behind the decimal, say there are 2 numbers behind the decimal, once you finished multiplying the numbers you would add up all the products you got and then put the first 4 numbers you wrote behind the decimal to get the final product.

Step-by-step explanation:

Say you were multiplying 14.63 and 7.74

14.63

<u> x 7.74 </u><em>Always starting from the right side of the equation</em>

.5852 <em>go to the left </em> <em>four digits and put a decimal then </em>

<em> ↑←←←← just carry the decimal down and you'll end up with </em>

10.2410 <em>the final product</em>

113.2362

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3 years ago

Estimate.<br> 4,754 dived by 1.9 =

irinina [24]

Answer:

2502.1

Step-by-step explanation:

4754/1.9

= 2,502.1

Hence the andwer is 2502.1

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3 years ago