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2 years ago

Solve for x. See the image below!

Mathematics

1 answer:

Nataly [62]2 years ago

4 0

Answer:

x = 17

Step-by-step explanation:

in such a constellation (two beams from the same point of origin cut through the same circle) the relative relation between the segments of these beams to the overall length of the beam have to be the same :

7 × (7+x) = 8 × (8+13)

49 + 7x = 8 × 21 = 168

7x = 119

x = 17

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State whether the data described below are discrete or continuous, and explain why. The exact mass (in grams )of food eaten by

NARA [144]

Answer:

A. The data are continuous because the data can take on any value in an interval.

Step-by-step explanation:

The data surveyed is the exact mass, in grams, of food eaten by each person each day.

This type of data is continous, not discrete. The mass can take any value within the domain of positive real numbers. It represents a physic variable, and they are always continous.

5 0

3 years ago

James knows that when he walks, he takes about 120

Tpy6a [65]

Answer:

speed of James is: 3.75 miles/hour.

Step-by-step explanation:

We need to find the speed of James in miles per hour(mi/hr)

we know that 1 mile=5280 feet

James takes 120 steps in 1 minute so he will cover 120×60 steps in 1 hour.

i.e. he takes 7200 steps in 1 hour.

also each step of James=2.75 feet

total distance covered by James in 1 hour=2.75×7200 feet=19800 feet

$19800feet=\frac{19800}{5280} miles=3.65miles$

hence speed of James= (distance covered by james in 1 hour)/1 hour

speed of James=3.75 miles/hour.

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7 0

2 years ago

Read 2 more answers

Given teo circles whose radii are 9" and 24", the ratio of thuer circumfrence is?

saul85 [17]

Answer:

The ratio is 3:8

Step-by-step explanation:

The circumference of a circle can be calculated using the formula;

C = 2 * pi * r

for 9 inches;

C = 2 * pi * 9 = 18 pi inches

For 24 inches;

C = 2 * pi * 24 = 24 pi inches

The ratio is thus;

18 pi : 48 pi

divide through by 6 pi

= 3: 8

5 0

3 years ago

Find the exact value of sin15

Alja [10]

Answer:

0.65028784015...

Step-by-step explanation:

3 0

3 years ago

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Find the digit that makes _ 3520 by 9

olga nikolaevna [1]

Remember the divisibility rule for 9. The sum of the digits of the number must be divisible by nine.
Let the digit be $x$ . Then $x+3+5+2+0=x+10$ has to be divisible by nine. Recalling that $18=9*2$ , we note that $x=8$ .

7 0

3 years ago