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uranmaximum [27]
3 years ago
9

Multiply. (5x + 3z) (7x-z) Simplify your answer.

Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0

Answer:

105x^{2}z-15xz^{2}

I might be wrong though

Step-by-step explanation:

You might be interested in
A calculator was purchased for $29. The wholesale cost was $20. What was the percent markup?
Oxana [17]
If you would like to find the percent markup, you can calculate this using the following steps:

x% of $20 is $29
x% * 20 = 29
x/100 * 20 = 29
x = 29 * 100 / 20
x = 145%

145% - 100% = 45%

The correct result would be 45%.
5 0
3 years ago
What is the length of an arc cut off by an angle of 1.5 radians on a circle of radius 8 inches?
Natali [406]

To solve this problem, we should first recall that the circumference is the measure of the total arc enclosing the circle. The formula for circumference is:

Circumference = 2 π r

where r is the radius of the circle

 

Now since we are only looking for a fraction of the arc, not the total arc, therefore this simply means we are finding for a portion of the circumference. Now we use the formula:

Arc length = (θ / 360) * 2 π r

Where θ/360 represents how much of the fraction is the arc

 

Convert angle to degrees: θ = 1.5 rad (180° / π rad) = (270/π)°

 

Therefore the arc length is:

Arc length = (270/π / 360) * 2 π (8 inches)

Arc length = 12 inches

5 0
3 years ago
(X^2 +4) +32=12x^2+48
s2008m [1.1K]
Let's solve your equation step-by-step.

<span><span><span><span>x2</span>+4</span>+32</span>=<span><span>12<span>x2</span></span>+48

</span></span>Step 1: Simplify both sides of the equation.


<span><span><span>x2</span>+36</span>=<span><span>12<span>x2</span></span>+48

</span></span>Step 2: Subtract 12x^2+48 from both sides.

<span><span><span><span>x2</span>+36</span>−<span>(<span><span>12<span>x2</span></span>+48</span>)</span></span>=<span><span><span>12<span>x2</span></span>+48</span>−<span>(<span><span>12<span>x2</span></span>+48</span>)

</span></span></span><span><span><span>−<span>11<span>x2</span></span></span>−12</span>=0

</span>Step 3: Use quadratic formula with a=-11, b=0, c=-12.

<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a

</span></span></span><span>x=<span><span><span>−<span>(0)</span></span>±<span>√<span><span><span>(0)</span>2</span>−<span><span>4<span>(<span>−11</span>)</span></span><span>(<span>−12</span>)</span></span></span></span></span><span>2<span>(<span>−11</span>)

</span></span></span></span><span>x=<span><span>0±<span>√<span>−528</span></span></span><span>−<span>22

Hopefully this helps!
</span></span></span></span>
4 0
3 years ago
I’m not sure what the answer is
lys-0071 [83]
Set up a pair of fractions:
\frac{500}{1} =  \frac{828}{x}
500x = 828 (cross multiply)
x = 1.656 meters high should be the model (1.7 rounded)
8 0
4 years ago
Find the length of side s. Round to the nearest tenth if needed.
Ilya [14]

Answer:

dunno

Step-by-step explanation:

4 0
3 years ago
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