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nata0808 [166]
3 years ago
14

Need help asap will mark brainliest!!!!!

Mathematics
1 answer:
arlik [135]3 years ago
4 0

Answer:

number 4

Step-by-step explanation:

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Find the value of the variable and yz if y is between x and z Xy=6b yz=8b Xz=175
Anika [276]

The value of b is 12.5 and the value of YZ is 100

<h3>How to determine the variable and yz?</h3>

The given parameters are:

XY = 6b

YZ = 8b

XZ = 175

This means that

XZ = XY + YZ

So, we have:

6b + 8b = 175

Evaluate the sum

14b = 175

Divide by 14

b = 12.5

Substitute b = 12.5 in YZ = 8b

YZ = 8 * 12.5

Evaluate

YZ = 100

Hence, the value of b is 12.5 and the value of YZ is 100

Read more about lengths at:

brainly.com/question/24571594

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7 0
2 years ago
Answer below........
olganol [36]

ans: 70 ...( it is by ; 180-110) because of straight angle= 180...........

5 0
3 years ago
Determine an expression for dy<br> dx given that x = sin3<br> (t)andy = cos3<br> (t)
shtirl [24]

Answer:

\frac{dy}{dx} =-\sqrt[3]{\frac{y}{x} }

Step-by-step explanation:

Recall that using the chain rule we can state:

\frac{dy}{dt} =\frac{dy}{dx}*\frac{dx}{dt}

and therefore solve for dy/dx as long as dx/dt is different from zero.

Then we find dy/dt  and dx/dt,

Given that

x=sin^3(t)\\dx/dt = 3 sin^2(t)* cos(t)

And similarly:

y=cos^3(t)\\dy/dt=-3\,cos^2(t)*sin(t)

Therefore, dy/dx can be determined by the quotient of the expressions we just found:

\frac{dy}{dx} =\frac{dy/dt}{dx/dt} =\frac{-3\,cos^2(t)*sin(t)}{3\,sin^2(t)*cos(t)} =-\frac{cos(t)}{sin(t)}

now notice that we can find   cos(t) = \sqrt[3]{y}  from the expression for y,

and   sin(t) = \sqrt[3]{x}  from its expression for x.

Therefore dy/dx can be written in terms of x and y as:

\frac{dy}{dx} =-\frac{cos(t)}{sin(t)}=-\sqrt[3]{\frac{y}{x} }

4 0
3 years ago
2. Celesta used to spend 90 minutes a day on the phone. Now she spends
algol13

Answer:

33%

Step-by-step explanation:

sorry my bad i did percentage increase.

7 0
3 years ago
Which expression does not factor? m3 + 1 m3 – 1 m2 + 1 m2 – 1
lara [203]
I think the answer is m2+1. Hope this helps. :)
4 0
3 years ago
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