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3 years ago

60 POINTS I NEED ANSWER FAST. WILL MARK BRAINLIEST.

Mathematics

2 answers:

Deffense [45]3 years ago

4 0

Answer:

5.2

Step-by-step explanation:

4.3/5.6 = 4/AB

AB = 5.2

Lina20 [59]3 years ago

4 0

Step-by-step explanation:

Here, 

 

Triangle ADC and triangle ABD are similar triangle as they are similar by A.A.A axiom.

now, as they are similar their sides are proportional to eachother, 

CD/BD : AB/AC : AD/AD

4.3/4 : AB/5.6 : AD/AD.

Taking 1st and srcond ratios we get,

4.3/4=AB/5.6

or, 4AB = 5.6×4.3 (cross multiplication)

Therefore, the measure of AB is 6.02 or 6.

Hope it helps...

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Serious answers only I’m giving 20 points away to whoever can help me with real explanation and I will mark you Brainiest

inn [45]

Answer:

1.3

Step-by-step explanation:

BC is the distance between B and C.

BC = x − (-0.4)

BC = x + 0.4

AB is the distance between A and B.

AB = -0.4 − (-1.25)

AB = -0.4 + 1.25

AB = 0.85

Substitute into the equation.

BC = 2AB

x + 0.4 = 2(0.85)

x + 0.4 = 1.7

x = 1.3

8 0

3 years ago

Read 2 more answers

Use separation of variables to solve dy dx − tan x = y2 tan x with y(0) = √3. Find the value of c in radians, not degrees

a_sh-v [17]

Answer:

$y(x)=tan(-log(cos(x))+\frac{\pi }{3} )$

Step-by-step explanation:

Rewrite the equation as:

$\frac{dy(x)}{dx}-tan(x)=y(x)^{2} *tan(x)$

Isolating $\frac{dy}{dx}$

$\frac{dy}{dx} =tan(x)+tan(x)*y^{2}$

Factor:

$\frac{dy}{dx} =tan(x)*(1+y^{2} )$

Dividing both sides by $(1+y^{2} )$ and multiplying them by $dx$

$\frac{dy}{1+y^{2} } =tan(x)dx$

Integrate both sides:

$\int\ \frac{dy}{1+y^{2} } = \int\ tan(x) dx$

Evaluate the integrals:

$arctan(y)=-log(cos(x))+C_1$

Solving for y:

$y(x)=tan(-log(cos(x))+C_1)$

Evaluating the initial condition:

$y(0)=\sqrt{3} =tan(-log(cos(0))+C_1)=tan(-log(1)+C_1)=tan(0+C_1)$

$\sqrt{3} =tan(C_1)\\arctan(\sqrt{3} )=C_1\\60=C_1$

Converting 60 degrees to radians:

$60degrees*\frac{\pi }{180degrees} =\frac{\pi }{3}$

Replacing $C_1$ in the diferential equation solution:

$y(x)=tan(-log(cos(x))+\frac{\pi }{3} )$

3 0

3 years ago

Francis teaches the piano. He charges each student an enrollment fee of $100 plus $15 per hour of piano lessons. The average cos

Sergeeva-Olga [200]

Answer:

The first one should be right. Since the teacher is charging $15 per hour of the piano lesson then it can't be any of the answers of $100h. The answer can't be C, the third one, since you're adding the enrollment fee to the cost of every piano lesson it would be wrong to subtract the $100. Hope that helps!

Step-by-step explanation:

The answer will the answer on the top $25=$100+$15h over h

6 0

4 years ago

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Using the points [164,166]and[173,174] find the slope

Lana71 [14]

Answer:

8/9

Step-by-step explanation:

The equation to find a slope is y2-y1/x2-x1=m. (m is the slope)

174-166/173-164

8/9

So the slope is 8/9.

8 0

3 years ago

Please help me with this Ixl answer.Please answer this correctly I have to show them the

frosja888 [35]

Hello!

Let's put this as a system of equations.

r= 8+g

r+g=14

Let's plug our r value into the second equation and solve for g.

8+g+g=14

8+2g=14

Now we subtract 8 from both sides.

2g=6

We divide both sides by 2.

g=3

Therefore, he has 3 green peppers.

I hope this helps!

5 0

3 years ago

Read 2 more answers