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3 years ago

10

Need help with the 3 questions! Plz

1 answer:

fredd [130]3 years ago

3 0

Answer:

5) 2.5

7) 7.2

9) 649.44

Hope this helped

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Finding radius of a circle.

zysi [14]

The radius of a circle is half of the diameter
10.) (6/5)= 1.2
1.2/2=.6
The radius of the circle in question 10 is .6 or 1/2 inch

11.) because x (diameter) is not defined in this problem. We can't solve directly for x, but we know the radius is half of the diameter
so we can say
r= 1/2x

5 0

4 years ago

What two nonnegative real numbers with a sum of 60 have the largest possible product?

kogti [31]

The biggest possible real number = 60 ÷ 2 = 30

30 + 30 = 60

Largest Product = 30 x 30 = 900

Answer: The two numbers are 30 and 30.

6 0

3 years ago

What polynomial should be subtracted from 7x2−6x+5 to get the difference equal to x2−x.

Aliun [14]

Answer:

6x^2-5x+5

Step-by-step explanation:

4 0

3 years ago

Find the distance, c, between (0,0) and (-4,-3) on the coordinate plane. Round to the nearest tenth if necessary.

taurus [48]

Answer:

5

Step-by-step explanation:

To solve the equation you'll use the distance formula:

$\sqrt{\left(x_{2}-x_{1}\right)^{2}+\left(y_{2}-y_{1}\right)^{2}}$

Substitute the equation with (0,0) being $x_{1}$ , $y_{1}$ and (-4,-3) $x_{2},y_{2}$

$\sqrt{\left(0+4\right)^{2}+\left(-3+0\right)^{2}}$

if you solve this you'll get 5

7 0

2 years ago

A jeweler is dividing

tatuchka [14]

<em><u>Question:</u></em>

A jeweler is dividing 3/8 of a pound of rubies among 4 lots. What part of a pound will each lot weigh? A.1/4 B.1/8 C.1/16 D.3/32

<em><u>Answer:</u></em>

Option D

Each lot weight $\frac{3}{32}$ part of pound

<em><u>Solution:</u></em>

Given that,

A jeweler is dividing 3/8 of a pound of rubies among 4 lots

To find: part of a pound each lot weigh

From given,

$\frac{3}{8} \text{ of a pound } = 4 lots$

Let "x" be the part of a pound each lot weigh

Therefore,

$\frac{3}{8} \text{ of a pound } = 4 lots\\\\"x" part = 1\ lots$

This forms a proportion and solve by cross multiplying

$\frac{3}{8} \times 1 = 4 \times x\\\\x = \frac{3}{32}$

Thus, each lot weight $\frac{3}{32}$ part of pound

6 0

3 years ago