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4 years ago

In the figure, angle D measures 31° and angle A measures 27°.

1 answer:

8 0

If we assume that the figure is a triangle with a supplementary angle outside the triangle ABD, ∠F. Given that angle D is 31 and angle A is 27. Therefore, angle B is 122. Then, angle F is supplementary to angle D, meaning angle F will have a measurement of 180 - 31 = 149.

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What is the answer 4d+12e=

Phantasy [73]

Answer:

d = -3e

Step-by-step explanation:

hope this helps

8 0

3 years ago

in a school containing 360 children, 198 are girls. What percent of the school are girls? What percent of the school are boys? H

almond37 [142]

Answer:

What percent of the school are girls? 55%

What percent of the school are boys? 45%

How many boys are there? 162

How many girls are there? 198

Step-by-step explanation:

The number of girls = 198

The percent of girls = 198/360 x 100% = 55%

The number of boys = 360-198 = 162.

The percent of boys = 162/360 x 100% = 45%.

5 0

3 years ago

Read 2 more answers

How can I show her numbers are related to each other

schepotkina [342]

<span>You can show the relation of both number by simply identifying th place value of each digits.
For example, the number is 555.55
=> First 5 in the left has a hundreds value, followed by tens and ones.
=> then the number next to decimal point has a value of tenths and the next is hundredths.

Now, how the find the relationship of the given number
=> Each number has 10 times difference with each other.
=> 0.05 x 10 = 0.5
=> 0.5 x 10 = 5
=> 5 x 10 = 50
=> 50 x 10 = 500
=> 555.55</span>

7 0

3 years ago

What tool can you use to measure a ropes length plz answer I need it now plz!!

xxTIMURxx [149]

Answer:

measuring tape, ruler, yard stick

Step-by-step explanation:

it depends on how long the rope is

8 0

4 years ago

Need help with math homework

Pavel [41]

Hello!

The answer for A is:

$X1=-1\\X2=5$

The answer for B is: The rocket will hit the lake surface in 5 seconds.

Defining the terms:

$a=-16\\b=64\\c=80\\$

So, replacing it in the quadratic equation (it's given to you in the exercise)\\

$x=\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}$

$x=\frac{-64+-\sqrt{64^{2}-4*-16*80 } }{2*-16}$

$x=\frac{-64+-\sqrt{64^{2}+5120} }{-32}=\frac{-64+-\sqrt{4096+5120} }{-32}\\x=\frac{-64+-\sqrt{9216} }{-32}=\frac{-64+-\ 96 }{-32}\\x=\frac{-64+-\ 96 }{-32}\\x1=\frac{-64+\ 96 }{-32}=\frac{32}{-32} =-1\\\\x1=\frac{-64-\ 96 }{-32}=\frac{-160}{-32} =5\\$

We are working with a quadratic equation, so we will have two possible results,

$X1=-1\\X2=5\\$

Now, we are asked to find the time, time can not be a negative value, we have to discard X1 (-1) since it's a negative value, knowing that, the rocket will hit the lake after 5 seconds.

Have a nice day!

5 0

4 years ago