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3 years ago

I need help getting started in return I will help with Spanish

Mathematics

1 answer:

bekas [8.4K]3 years ago

8 0

Answer:

The constant rate of change is 4 inches per day

Step-by-step explanation:

We are finding the slope

That means we need two points

((0,8) and (1,12)

m= (y2-y1)/(x2-x1)

= (12-8)/(1-0)

=4/1

The constant rate of change is 4 inches per day

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PLEASE ANSWER WILL GIVE POINTS!!!!!!!!!!!

iris [78.8K]

Given:

The figure of a right triangle ABC.

To find:

The trigonometric ratios $\sin B, \tan A, \cos B$ .

Solution:

Using Pythagoras theorem,

$Hypotenuse^2=Perpendicular^2+Base^2$

$AB^2=AC^2+BC^2$

$(10)^2=(6)^2+BC^2$

$100-36=BC^2$

$64=BC^2$

Taking square root on both sides.

$\sqrt{64}=BC$

$8=BC$

So, measure of BC is 8 units.

Now,

$\sin \theta=\dfrac{Opposite}{Hypotenuse}$

$\sin B=\dfrac{AC}{AB}$

$\sin B=\dfrac{6}{10}$

$\sin B=\dfrac{3}{5}$

Similarly,

$\tan \theta=\dfrac{Opposite}{Adjacent}$

$\tan A=\dfrac{AC}{BC}$

$\tan A=\dfrac{6}{8}$

$\tan A=\dfrac{3}{4}$

And,

$\cos \theta=\dfrac{Adjacent}{Hypotenuse}$

$\cos B=\dfrac{BC}{AB}$

$\cos B=\dfrac{8}{10}$

$\cos B=\dfrac{4}{5}$

Therefore, the required trigonometric ration are $\sin B=\dfrac{3}{5}, \tan A=\dfrac{3}{4}, \cos B=\dfrac{4}{5}$ .

6 0

3 years ago

Find the area of the rhombus.

masha68 [24]

Answer

Area=20,5yr^2

Step-by-step explanation:

d1=13+13=26yd

d2=7,5+7,5=15yd

P=(d1+d2)/2

P=(26+15)/2

P=41/2

P=20,5yr^2

4 0

3 years ago

Simplify. 7x² - x + 9 + 6x² + 5x - 10 ___________ Will give brainliest.

Ira Lisetskai [31]

Answer:

13²+4−1

Step-by-step explanation:

hope it helps

3 0

3 years ago

Read 2 more answers

A chemist has 100 g of a 15% saline solution that she wants to strengthen to 29%. The percentage P of salt in the solution by ma

Vinil7 [7]

Answer:

D., x= 19.7 or ≈20. g

Step-by-step explanation:

P(x) = [100(15+x)]/(100+x)

When 0 g additional salt is added, x=0. we have

P(0) = [100(15+0)]/(100+0)= 15

x=0, P=15

We can see this point only on the graph D.

P(x) =29 = [100(15+x)]/(100+x)

29 = [100(15+x)]/(100+x)

29(100+x) = 100(15+x)

2900+29x = 1500+100x

2900-1500=100x-29x

1400 = 71x

x ≈ 19.7 g or ≈20. g

From the graph D, we can see that to get 29% we need to add ≈ 20 g of salt.

4 0

3 years ago

Which expression is equal to (5x2)x7

Dima020 [189]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers