3 years ago

How do I solve problems like this?

Mathematics

1 answer:

iris [78.8K]3 years ago

4 0

I think u have to add the fractions or multiply them

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Two numbers add to 140. If you double the smaller number and halve the larger number, then the two resulting numbers are equal.

iren2701 [21]

Answer:112

Step-by-step explanation:

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3 years ago

A. 20 mph B. 35 mph C. 70 mph D. 100 mph

jeka94

Girl it’s D, i’m kidding i don’t know but what grade are you in this looks easy

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3 years ago

Read 2 more answers

Please help me with this I'll give brainliest

valina [46]

Answer:

24. x = 8.

25. x = -9, 10.

Step-by-step explanation:

The zeros of the functions are the solutions to the equation when y=0. To find the solution, factor each equation.

24. Look for two factors that multiply to 64 and add to -16. The factors are -8 and -8. Write them in binomial forms.

(x-8)(x-8)

So x = 8.

25. Look for two factors that multiply to -90 and add to -1. The factors are 9 and -10. Write them in binomial forms.

(x+9)(x-10)

So x = -9, 10.

3 0

3 years ago

Cotpheta•sin2pheta= 1+cos2pheta 1+cospheta 1+sin2pheta

3241004551 [841]

Answer:

Step-by-step explanation:

Did you mean.

$= \cot( \theta) . \sin(2 \theta)$

$= \frac{ \cos( \theta) }{ \sin( \theta) } .(2 \sin( \theta) \cos( \theta) )$

$= \frac{2 \sin( \theta) \cos {}^{2} ( \theta) }{ \sin( \theta) }$

$= 2 \cos {}^{2} ( \theta)$

$= 2.(1 - \sin {}^{2} ( \theta) )$

$= 2 - 2 \sin {}^{2} ( \theta)$

No option Solution.

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2 years ago

A population of 450 bacteria is introduced into a culture and grows in number according to the equation below, where t is measur

EleoNora [17]

Answer:

growing at a rate of 200% an hour

Step-by-step explanation:

I am going to assume that binary fission occurs 4 times an hour.

I need the equation first. 4 hours, 1 time an hour per bacteria.

I'm confused a bit, you were kinda vague. Contact me if you can give me more info, and I will be happy to help.

4 0

4 years ago