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3 years ago

Solve for X under the assumption that X>0 Enter your answer in interval notation using grouping symbols.

Mathematics

1 answer:

irina1246 [14]3 years ago

5 0

There are two answers I found x=9 and x=-5

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BRAINLIEST TO CORRECT

Dima020 [189]

Answer:

10/9

Step-by-step explanation:

Step-by-step explanation:

5 • 2/9 = 10/9

Multiply 5 and 2

8 0

2 years ago

Read 2 more answers

A school paid $31.25 for each calculator.

Sonja [21]

Answer:

500/31.25=16

Step-by-step explanation:

The school bought 16 calculators

4 0

2 years ago

A sample of a population of 100 students is collected. Five students playing dodge ball at recess are asked if they prefer playi

SOVA2 [1]

Answer:

D. The students are not part of the population

Step-by-step explanation:

The first three options are true of this sample. D is the only option that is not true.

7 0

3 years ago

there are 341 pine trees and spruce trees in woodlot. 122 trees were pine. what fraction of the trees were spruce?

Olenka [21]

Answer:

219 over 1000

Step-by-step explanation:

3 0

3 years ago

If the diameter of circle O is 20 and CE = 4, then determine the length of AB. Show how you arrived at your answer.

Aneli [31]

Answer: Length of AB is 16 cm

Step-by-step explanation:

Given: Diameter of a circle is 20 cm and CE = 4 cm

Now as shown in figure AO, BO, CO are radii

$\text { Radius } =\dfrac{\text {Diameter}}{2} = \dfrac{20}{2} = 10 cm$

Therefore

AO=BO=CO= 10 cm

Now

$OE = CO- CE \Rightarrow OE= 10 -4 = 6 cm$

Now in Δ OEB

∠OEB =90°

Therefore by Pythagoras theorem : In a right angle triangle the square of hypotenuse is equal to the sum of square of other two sides.

So we have

$BO^2=BE^2+EO^2\\\\\Rightarrow 10^2= BE^2 +6^2\\\\\Rightarrow BE^2= 100-36\\\\\Rightarrow BE^2 = 64 \\\\\Rightarrow BE= 8 cm$

Now as we know perpendicular to the chord from the center of a circle bisect the chord.

Therefore

$AB= 2\times BE = 2\times 8=16 cm$

Hence , the length of AB is 16 cm .

8 0

3 years ago