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2 years ago

Please Help ! Answer the questions about Figure A and Figure B below.

Mathematics

1 answer:

Flauer [41]2 years ago

8 0

Answer:yes

Step-by-step explanation:

Each of their corners are at a 90* angle

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12 subtracted from a number equals 25 find the number

belka [17]

Answer: 12-n=25

-n=25-12

-n=13

Step-by-step explanation:

6 0

3 years ago

Which is the best estimate for the mass of a mouse?

Simora [160]

A.

Mice are small and kilograms are for much larger objects. The other two measurements are for liquids.

7 0

3 years ago

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I NEED HELP!! please show all work

PtichkaEL [24]

Take the logarithm of both sides. The base of the logarithm doesn't matter.

$4^{5x} = 3^{x-2}$

$\implies \log 4^{5x} = \log 3^{x-2}$

Drop the exponents:

$\implies 5x \log 4 = (x-2) \log 3$

Expand the right side:

$\implies 5x \log 4 = x \log 3 - 2 \log 3$

Move the terms containing x to the left side and factor out x :

$\implies 5x \log 4 - x \log 3 = - 2 \log 3$

$\implies x (5 \log 4 - \log 3) = - 2 \log 3$

Solve for x by dividing boths ides by 5 log(4) - log(3) :

$\implies \boxed{x = -\dfrac{ 2 \log 3 }{ 5 \log 4 - \log 3 }}$

You can stop there, or continue simplifying the solution by using properties of logarithms:

$\implies x = -\dfrac{ \log 3^2 }{ \log 4^5 - \log 3 }$

$\implies x = -\dfrac{ \log 9 }{ \log 1024 - \log 3 }$

$\implies \boxed{x = -\dfrac{ \log 9 }{ \log \frac{1024}3 }}$

You can condense the solution further using the change-of-base identity,

$\implies \boxed{x = -\log_{\frac{1024}3}9}$

5 0

2 years ago

A math class has three girls and 7 boys in the 7th grade and five girls and five boys in the 8th grade the teacher randomly sele

Anuta_ua [19.1K]

Answer:

7/20

Step-by-step explanation:

Seventh grade: Total = 3 + 7 = 10

Number of boys = 7 boys

Probability of a boy being picked = 7/10

Eighth grade: Total 5 + 5 = 10

Number of boys = 5

Probability 5/10 = 1/2

The probability of the correct outcome = 7/10 * 1/2 = 7 / 20

Answer: 7 / 20

7 0

3 years ago

Can a triangle be formed with the side lengths of 8cm 4cm and 12cm?

AVprozaik [17]

use a^2+b^2=c^2

8^2+4^2 12^2

64+8 144

=72

72<144

so no

5 0

3 years ago

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