2 years ago

Look at the photo I’m about to have to math class i need help! I’ve got 15 mins!

Mathematics

1 answer:

ira [324]2 years ago

5 0

See attached pictures

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Please help. Write as a single logarithm, a) log(13)+log(4) b) log(small 5)(14)-log(small 5)(2)

dsp73

Answer:

a) $\log 52$

b) $\log_57$

Step-by-step explanation:

Use logarithm properties:

$\log_ab+\log_ac=\log_a(b\cdot c)\\ \\\log_ab-\log_ac=\log_a\dfrac{b}{c}$

Then

a) $\log 13+\log 4=\log 13\cdot 4=\log 52$

b) $\log_514-\log _52=\log _5\dfrac{14}{2}=\log _57$

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3 years ago

Write the product using exponents. (very easy)

exis [7]

Answer:

-12^5

Step-by-step explanation:

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3 years ago

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∆ABC is a right angled at B and D is a point on BC if AD = 18cm BD = 9cm and CD =4cm Find AC

Gemiola [76]

In triangle, ABD,

AD²= AB²+BD²

AB² = AD²-BD²

AB² = 18²-9² = 324-81 = 243

AB = √243

In triangle, ABC,

AC² = AB²+BC²

AC² = (√243)²+(13)²

AC² = 243+169

AC = √412

AC = 20.29

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3 years ago

Andre cycled a distance 25km in 150 minutes. What was his average speed (km/h)?

FrozenT [24]

Answer:

10 km/h

Step-by-step explanation:

First, convert 150 minutes to hours:

150/60

= 2.5 hours

Then, to find his speed, divide the km by the number of hours:

25/2.5

= 10 km/h

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3 years ago

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Draw and label the figure describe line JG intersecting to line ta

8090 [49]

Answer:

Draw two criss cross. Then label line JG and line TA

Step-by-step explanation:

Hope this picture will help :)

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2 years ago