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Scrat [10]
2 years ago
11

Can someone help i don't understand this

Mathematics
1 answer:
Fantom [35]2 years ago
8 0
A) h = 2sqrt2 because for a 45-45-90 triangle both legs have the same measurement and to find the hypotenuse, you would multiply the leg by square root of 2.

b) d = sqrt3 because in order to find the short leg for a 30-60-90 triangle, you would need to divide your long leg by a square root of 3 (if you have the hypotenuse and wanted to find the short leg, divide the hypotenuse by 2).
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6th grade, the problem solving is on the image, Thank you
DedPeter [7]

Answer:

y=x+3

Step-by-step explanation:

when you connect all the dots it makes a straight linear line. then you can use the format y=mx+b

y is the y value

m is the slope (change in y divided by change in x or, rise over run)

x is the x value

b is the y intercept (the y value where the line will touch the y axis/vertical line)

to make the equation

y=mx+b

y and x are variables so you dont need to write them

the slope is rise/run just pick two points such as the first point (0,3) and the second point (1,4)

between these points it changes one unit to the right (1) and one unit up vertically meaning 1/1

=1

when the slope is 1 you get

y=1x+b which is just y=x+b

then the y intercept

the first dot is touching the y axis line and it's y value is 3

y=x+3

hope this helps

7 0
3 years ago
A party cap is in the form of a frustum. The radii of its ends are 10cm and 30 cm. The volume of the cap is 9100. What is the he
Vsevolod [243]

Answer:

4.46cm

Step-by-step explanation:

Volume of a frustum is expressed as;

V = (1/3) * π * h * (r₁² + r₂² + (r₁* r₂))

h is the height of the frustum

r₁ and r₂ are the radii of its ends

V is the volume

Given

V = 9100cm₃

r₁ = 10cm

r₂ = 30cm

Substitute

9100 = (1/3) * (3.14) * h * (10² + 30² + (10* 30))

9100 = 1/2(3.14)*h*(100+900+300)

9100 = 1.57*h*(1300)

9100 = 2,041h

h = 9100/2,041

h = 4.46cm

Hence the height of the cap is 4.46cm

3 0
3 years ago
Brandon has lunch at a cafe and te her cost of his meal Is $25.00.Because of the service, he wants to leave a 5% too. What is hi
Alenkasestr [34]
So we leave all of $25.00 and 5% of it. 

The total percentage would be 105% of 25.00 then, correct?

105% as a fraction is 1.05,

Multiply 1.05 to 25

Your final answer should be $26.25 :)
6 0
4 years ago
What is the sale price if an item selling for $10 id discounted 20%
lana [24]

Answer:

$8

Step-by-step explanation:

20% of 10 is 2 so 10-2=8

3 0
3 years ago
Solve each equation by graphing the related function. If the equation has no real-number solution,write no solution .
3241004551 [841]
See each answer below.

1) If we subtract 7 from both sides and try to take the square root, we are taking the square root of -7. Therefore, there are no solutions.

2) Dividing by 3 and taking the square root gives an answer of 0.

3) Add 4, multiply by 4 and finally take the square root of each side.You will get positive or negative four.

4)  Divide by 4 and then take the square root. You have positive or negative 5/2.
3 0
3 years ago
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