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3 years ago

Solve 55/z + 1/5 = 7/z

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

3 0

Answer:HEY THERE

Step-by-step explanation:

<h3>55/z + 1/5 = 7/z</h3><h3>>1/5=7/z -55/z</h3><h3>>1/5= -48/z[do cross multiplication]</h3><h3>>1*z=5*-48</h3><h3>>z=-240</h3><h3>this is ur answerr..hope it helped u^_^</h3>

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Vsevolod [243]

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3 years ago

Read 2 more answers

Determine coefficients a and b such that p(x)=x2 ax b satisfies p(1)=5 and p′(1)=11.

Murrr4er [49]

$p(x)=x^2+ax+b$
$p'(x)=2x+a$

Given that $p'(1)=11$ , you have

$p'(1)=2+a=11\implies a=9$

and given that $p(1)=5$ , you have

$p(1)=1+9+b=5\implies b=-5$

So you get

$p(x)=x^2+9x-5$

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3 years ago

The area of the United States is 3,794,100 square miles. Which is the best estimation of this area?

olga55 [171]

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4 years ago

A theme park has a ride that is located in a sphere. The ride goes around the widest circle of the sphere which has a circumfere

DENIUS [597]

Answer:

The surface area of the sphere is = $99426.41 yd^2$

Step-by-step explanation:

The area of a sphere can be calculated using this formula:

$A=4\pi r^2$

However, we have a little problem: we do not have our radius yet to utilize in the formula above.

We can get our radius from the circumference of the circle which has been given to us.

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3 years ago

A girl bought 3 and 3/4 pounds of spinach for $6.88 using the unit rate how much would 1 and 1/2 pounds of spinach cost?

chubhunter [2.5K]

To solve that question you need to figure out how much 1 and 1/2 pounds is compared to 3 and 3/4 pound, and then use that ratio to get the price.

1 and 1/2 pound = 1.5 pound
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1.5/3.75 = 0.4

That means she needs to pay 0,4 of the price of 3 and 3/4 pound

0.4 * 6.88 = 2.75

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4 years ago