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3 years ago

Turn the sentence into an expression please

Mathematics

1 answer:

sveticcg [70]3 years ago

3 0

Answer:

(x+20) + (x-9)

Step-by-step explanation:

You might be interested in

If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p

artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0

3 years ago

Chi chi can hit The golf ball 72 yards. Rory Can hit a golf ball 24 yards. How many times further can Chi chi hit a golf ball th

ivanzaharov [21]

Answer:

Chi chi canhit a golf ball three times further than Rory.

Step-by-step explanation:

To compare the distance between the two golfers, we can set up a ratio:

$\frac{Chi chi Distance}{Rory Distance} = \frac{72}{24} =\frac{3}{1}$

Since the distance that Chi chi can hit the ball is 3:1 the distance that Rory can hit the ball, than Chi chi can hit the golf ball three times further. When reducing a ratio or fraction to lowest terms, you need to divide the numerator and the denominator by the same factor. Since 72 can be evenly divided by 24, we can divide both the numerator and the denominator by 24 to get 3:1.

6 0

4 years ago

5,000+300+8 in standard form

lilavasa [31]

Answer:

5,308

Step-by-step explanation:

3 0

3 years ago

4) Number of rational numbers between – 3 and – 4 are _______ *

wlad13 [49]

Answer:

uncountable

Step-by-step explanation:

----------------uncountable-----------------

8 0

3 years ago

Name four angles whose tangent equals 0. a. 45°, 135°, 405°, 495° c. 0°, 180°, 360°, 540° b. 90°, 270°, 450°, 630° d. 90°, 450°,

Tresset [83]

Answer:

C. SEE ATTACHED PICTURE

Step-by-step explanation:

Tangent = 0 at 0° and 180°

0° = 360° and. 180° = 540°

5 0

3 years ago