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4 years ago

True or false

Mathematics

1 answer:

Ann [662]4 years ago

3 0

the imposter the answer is true

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A group of 40 students from your school is part of the audience for a tv game show. The total number of people in the audience i

jenyasd209 [6]

18.75% chance they will be picked

3 0

4 years ago

Read 2 more answers

After filling a gas tank the odometer read 82,803.6 After the next filling it read 83,034.6 it took 16.5 gallons to fill the tan

ELEN [110]

83,034.6 - 82,803.6 = 231 miles

231/16.5 = 14 miles per gallon

8 0

3 years ago

Explain how you will find the sum of 4.2 and 2.14

serg [7]

Answer:

you find the sum by adding a "0" at the end of "4.2" and the stack add them (or however you can add them).

Step-by-step explanation:

4.20

+ 2.14

= 6.34

3 0

3 years ago

PLEASE HELP!!!!! A satellite telescope has a parabolic dish. Satellite signals are collected at the focal point (focus) of the

-BARSIC- [3]

The dish illustrates operations on a parabola.

The depth of the parabolish dish is 160 feet.

The bowl is said to be a parabola.

So, we have:

$\mathbf{(x -h)^2 = 4p(y - k)}$

Where:

$\mathbf{Focus: p = 40}$

$\mathbf{Vertex:(h,k) = (0,0)}$

From the question, the diameter is 160 feet.

So, the radius (r) is:

$\mathbf{r = \frac{160}{2} = 80}$

So, the coordinate of the depth of the parabola would be:

$\mathbf{(x,y) = (60 + 100,y)}$

$\mathbf{(x,y) = (160,y)}$

Substitute these values in $\mathbf{(x -h)^2 = 4p(y - k)}$

So, we have:

$\mathbf{(160 - 0)^2 = 4 \times 40 \times (y -0)}$

$\mathbf{160^2 = 160y}$

Divide both sides by 160

$\mathbf{160 = y}$

Rewrite as:

$\mathbf{y = 160 }$

Hence, the depth of the parabolish dish is 160 feet.

Read more about parabolas at:

brainly.com/question/4074088

3 0

3 years ago

Given: circle k(O), ED diameter, m∠OEF=32°, m EF=(2x+10)°. Find: x

Snezhnost [94]

Answer:

The value of x is $53\°$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of arc DF

we know that

The inscribed angle measures half that of the arc comprising

$m$

we have

$m$

substitute

$32\°=\frac{1}{2}(arc\ DF)\\ arc\ DF=64\°$

step 2

Find the measure of x

we know that

$arc\ DF+arc\ EF=180\°$ ---> is a semi circle

we have

$arc\ DF=64\°\\ arc\ EF=(2x+10)\°$

substitute

$64\°+(2x+10)\°=180\°\\ 2x\°=180\°-74\°\\ 2x\°=106\°\\ x=53\°$

4 0

4 years ago