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3 years ago

Can someone pls help me? whoever answers first and correct, will get brainlist

Mathematics

2 answers:

sineoko [7]3 years ago

8 0

Answer:A Black dogs Step-by-step explanation: First do the ratio for brown dogs to black dogs it is 5:10. Then you look at the question and it asks for every 1 brown dog there are 2____ dogs, so if you look at the first ratio we made; 5:10 the 5 multiplied by 2 equals 10. So if the second ratio has to be 1:2, 5:10 is equal to 1:2 so it is correct. Hope this helps! Sorry if wrong!

Nesterboy [21]3 years ago

3 0

Answer: 2 black dogs

Step-by-step explanation:

Brown dogs = 5

Black dogs= 10

Ratio of brown dogs to black dogs = 5/10/= 1:2

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3 years ago

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An art studio charges a start-up fee to cover art supplies, plus an additional fee per class. The graph shows the total cost for

Studentka2010 [4]

Answer/Step-by-step explanation:

✔️The rate of change can be calculated using the coordinates of any two points on the graph. Let's use (2, 60) and (3, 75):

$rate of change = \frac{y_2 - y_1}{x_2 - x_1} = \frac{75 - 60}{1} = \frac{15}{1} = 15$

Rate of change (m) = 15

✅In the context of this situation, the rate of change can be interpreted to be the additional fee per class. Thus, an additional fee per class cost $15.

✔️Initial value is the same as the y-intercept.

To find the y-intercept (b), substitute m = 15, x = 2, and y = 60 into y = mx + b.

Thus:

60 = 15(2) + b

60 = 30 + b

60 - 30 = b

30 = b

b = 30

The initial value/y-intercept = $30

✅In this context, $30 is the start-up fee to cover art supplies.

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3 years ago

Write the trinomial as a square of a binomial<br> x^2+2xy+y^2

vitfil [10]

Answer:

$\large\boxed{x^2+2xy+y^2=(x+y)^2}$

Step-by-step explanation:

$(x+y)^2=(x+y)(x+y)\\\\\text{Use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(x)(x)+(x)(y)+(y)(x)+(y)(y)=x^2+xy+xy+y^2=x^2+2xy+y^2$

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3 years ago

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777dan777 [17]

Answer:

No, this is because the word obtuse is in the name obtuse triangle as well as it being a whole different angle than an acute angle. Obtuse angles are are greater than 90 degress but less than 180 while the acute angle is less than 90.

Step-by-step explanation:

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3 years ago

The area of the four walls of a room is 156 m2. The breadth and height of the room are 8 m and 6 m

Yakvenalex [24]

Given: Lateral Surface area=156m
Breadth=8m height=6m
⇒ L.S.A=2(bh+lh)=2(l+b)h
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156

=13
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