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givi [52]
3 years ago
7

Will mark as brainliest if correct

Mathematics
2 answers:
bearhunter [10]3 years ago
8 0
Log r+log 4=3
log(4xr)=3
log base 10(4r)=3
4r=10^3
4r=1000
r=1000/4
r=250
Greeley [361]3 years ago
4 0

Answer:

r=250

Step-by-step explanation:

log10(r) + log10(4)=3

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Solve for x. round to nearest hundredth. PLS HELPP. will award brainliest
DENIUS [597]

Answer:

18.03

Step-by-step explanation:

<u>Formula:</u> a^{2}+b^{2}=c^{2}

15^{2}+10^{2}=x^{2}

225+100=x^{2}

x^{2}=325

x = 5\sqrt{13}=18.03

6 0
3 years ago
Can someone help me get the answer to this
Marysya12 [62]

Answer:

6=b

Switch sides

b=6

7 0
3 years ago
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if one angle of a triangle is 100 degrees and the other two angles are equal, what is the measure of each unknown angle
Zielflug [23.3K]

Answer: 40 degrees

Step-by-step explanation:

The 3 angles of a triangle must add up to 180 degrees.

Let's say this is triangle ABC and angle A has a measure of 100 degrees.

That leaves 80 degrees to be split evenly between angles B and C.

80/2 = 40, so angles B and C must each be 40 degrees.

6 0
1 year ago
Which property of addition is shown below? a bi c di = a c bi di identity property associative property commutative property inv
marin [14]

The commutative property of addition is shown here a+bi+c+di = a+c+bi+di which is the correct answer.

<h3 /><h3>What is commutative property?</h3>

The commutative property states that an expression of the form (A + B) can be solved as (B + A) by an addition operation that does not change the result.

This property applies to multiplication also.

We have the given expression:

a+bi+c+di = a+c+bi+di

We have to identify the property of addition in the above expression.

Since we can say here that (bi+c) is expressed as (c+bi).

The commutative property of addition states that the numbers can be added in any order.

Mathematically, it states that a+b = b+a.

Here, (bi+c) can be replaced by (c+bi), whether 'b' is added to 'ci' or 'ci' is added to 'b', the result is always the same.

Therefore, the commutative property of addition is the correct answer

Learn more about the commutative property;

brainly.com/question/27325958

6 0
2 years ago
Write the explicit rule<br> 50, 45, 40, 35, 30
spin [16.1K]

Answer:

a_n = 50 - 5n, for n = 1,2, 3, ...

Step-by-step explanation:

a_1 = 50

a_2 = 50 - 5 = 45

a_3 = 50 - 2 * 5 = 40

a_n = 50 - (n - 1) * 5

a_n = 50 - 5n + 5

a_n = 50 - 5n

5 0
3 years ago
Read 2 more answers
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