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3 years ago

What is the value of x?

Mathematics

1 answer:

Bogdan [553]3 years ago

6 0

Answer:

Step-by-step explanation:

90+15=105

105÷5=21

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WILL GIVE BRANLIEST HELP PLEASE!

allochka39001 [22]

I believe since you are looking for the angle of M<ABC, you just add both 120 and 25 together, since they practically share a point.

So 120 + 25 = 145

So I guess 145 would be your answer.

I remembered this type of problem from Geometry.

3 0

3 years ago

Please help with 15, 17 and 19

Irina-Kira [14]

Given:

15. $\log_{\frac{1}{2}}\left(\dfrac{1}{2}\right)$

17. $\log_{\frac{3}{4}}\left(\dfrac{4}{3}\right)$

19. $2^{\log_2100}$

To find:

The values of the given logarithms by using the properties of logarithms.

Solution:

15. We have,

$\log_{\frac{1}{2}}\left(\dfrac{1}{2}\right)$

Using property of logarithms, we get

$\log_{\frac{1}{2}}\left(\dfrac{1}{2}\right)=1$ $[\because \log_aa=1]$

Therefore, the value of $\log_{\frac{1}{2}}\left(\dfrac{1}{2}\right)$ is 1.

17. We have,

$\log_{\frac{3}{4}}\left(\dfrac{4}{3}\right)$

Using properties of logarithms, we get

$\log_{\frac{3}{4}}\left(\dfrac{4}{3}\right)=-\log_{\frac{3}{4}}\left(\dfrac{3}{4}\right)$ $[\because \log_a\dfrac{m}{n}=-\log_a\dfrac{n}{m}]$

$\log_{\frac{3}{4}}\left(\dfrac{4}{3}\right)=-1$ $[\because \log_aa=1]$

Therefore, the value of $\log_{\frac{3}{4}}\left(\dfrac{4}{3}\right)$ is -1.

19. We have,

$2^{\log_2100}$

Using property of logarithms, we get

$2^{\log_2100}=100$ $[\because a^{\log_ax}=x]$

Therefore, the value of $2^{\log_2100}$ is 100.

6 0

3 years ago

A fish is 4 feet under water and swims up 1 foot towards the surface. What is its position

vampirchik [111]

Answer: $\Large\boxed{-3~\text{feet under water}}$

Step-by-step explanation:

Given information

$\text{Fish is 4 feet under water (-4)}$

$\text{Swims up by 1 foot (+1)}$

Derived expression from the given information

$\text{Position = Initial + Change}$

Substitute values into the given expression

$\text{Position = }(-4)+(1)$

Simplify the position

$\text{Position = }-3$

Therefore, the current position of the fish is:

$\Large\boxed{-3~\text{feet under water}}$

Hope this helps!! :)

Please let me know if you have any questions

7 0

2 years ago

HELP!!! CORRECT ANSWER NEEDED OR ELSE I FAIL ;-; STUDY ISLAND !!

Ket [755]

Answer:

B. Step 2 uses the associative property, and step 3 uses the commutative property.

Step-by-step explanation:

The associative property lets you group terms for addition any way you like. It appears that in Step 2, the grouping is ...

4 + (1/6 + 3) + 5/6

The commutative property lets you change the order of any pair of terms involved in addition. It appears that in Step 3, the order of the terms within the group has been swapped.

4 + (3 + 1/6) + 5/6

_____

Comment on associative and commutative properties

What applies to terms in addition applies to factors in multiplication.

5 0

3 years ago

Which function is the inverse of f(x) = 2x + 3 ?

siniylev [52]

I think it might be f^-1 (x) = x/2 - 3/2
I hope this helps!

6 0

3 years ago