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3 years ago

I miiiiighhhhtttt need more helpppp

Mathematics

1 answer:

Julli [10]3 years ago

8 0

Answer: 5
Explanation: 16 divided by 2 equals 8 and 10 divided by 2 is 5, just trust me

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3 less than a number is 17

navik [9.2K]

Answer:

$let \: unknown = x \\ then \\ x - 3 = 17 \\ x = 17 + 3 \\ x = 20 \\ thank \: you$

6 0

3 years ago

Solve equation by factoring<br>X^+2x+1=0

Soloha48 [4]

Answer:

x=-1

Step-by-step explanation:

Step 1: Factor left side of equation.

(x+1)(x+1)=0

Step 2: Set factors equal to 0.

x+1=0 or x+1=0

x=−1

6 0

3 years ago

Suppose that D(r) is a function which gives the population density, in hundreds of people per square mile, within r miles of the

borishaifa [10]

Answer:

a) T(r) = r.D(r)

b) 975 people per square mile.

Step-by-step explanation:

(a)

The units of D(r) are

$\frac{hundreds\;of\;people}{mile^2}$

when multiplying the density by the area we get the amount of people in that area, so

$T(r)=rmile^2D(r)\frac{hundreds\;of\;people}{mile^2}=rD(r)\;hundreds\;of\;people$

(b)

The average rate of change of T(r) over the interval [5,7] is

$\frac{T(7)-T(5)}{7-5}=\frac{7D(7)-5D(5)}{2}$

but D(7) = 350 and D(5) = 100, so

$\frac{7D(7)-5D(5)}{2}=\frac{7*350-5*100}{2}=975$

and the average rate of change of T(r) over the interval [5,7] is 975 people per square mile.

5 0

4 years ago

A jar contains black beads and green beads. Forty percent of the beads in the jar are green. A number generator simulates random

eduard

Answer:

The number generator is not fair. In most of the experiments, considerably less than 40% of the selected are green

Step-by-step explanation:

Given

$Pr(Green) = 40\%$

See attachment for plots

Required

Is the number generator fair or not

From the number line, we have the following outcomes:

$0 \to 1$

$1 \to 1$

$2 \to 7$

$3 \to 2$

$8 \to 1$

Divide each outcome by 12, to get the proportion of green in each trial

$0 \to 1$ $\to 8.33\%$

$1 \to 1$ $\to 8.33\%$

$2 \to 7$ $\to 58.33\%$

$3 \to 2$ $\to 16.33\%$

$8 \to 1$ $\to 8.33\%$

The above shows that the proportion of green in most of the trial is less than 40%

<em>Hence, the number generator is not fair.</em>

3 0

3 years ago

Read 2 more answers

A paper is 0.55 mm thick. How high pile of 274 sheets? The paper is 24.5 long and 18.5 cm wide. Calculate volume of the pile of

strojnjashka [21]

The height of the pile is 150.7 mm, and the volume is V = 6,830,477.5 mm³.

<h3>How high will be the pile of papers?</h3>

We know that each paper is 0.55mm thick, then if we pile 274 of these, the height of the pile will be:

H = 0.55mm*274 = 150.7mm

Now we want to get the volume of the pile of paper. Remember that for a rectangular prism of height H, width W, and length L, the volume is:

V = H*W*L

In this case, we have:

H = 150.7mm
W = 18.5 cm = 185 mm
L = 24.5 cm = 245 mm

Then the volume is:

V = (150.7mm)*(185 mm)*(245 mm) = 6,830,477.5 mm³

If you want to learn more about volumes:

brainly.com/question/1972490

#SPJ1

5 0

2 years ago