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2 years ago

Please help i don't have much time and nobody is answering!

Mathematics

2 answers:

aleksandrvk [35]2 years ago

5 0

Answer:

x = 45

A triangle has to equal 180 degrees.

Brrunno [24]2 years ago

5 0

Answer:

Step-by-step explanation:

All three angles of any type of triangle should add up to 180 degrees

So if x (the degree of one angle)plus x+65(the degree of the other angle) plus 25(the degree for the third angle) equals 180, the equation should look like this

x+(x+65)+25=180

2x+65+25=180

2x+90=180

2x=90

x=45

So x equals 45, but we are not done yet

The question says to define x+65, so

x+65

45+65

110

110 is the answer

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Supposed the population of deer in a region was 3,500 in the year 2000.since then population has grown by 3.5% annually. What wi

sergejj [24]

Y = a (b^x)

1) x = 0, y = 3500

=> 3500 = a (b^0)

=> 3500 = a (1)

=> a = 3500

2) growth percent = 3.5% => growth rate = 1.035 = b

=> y = 3500 (1.035)^ x

3) year 2020 => x = 2020 - 2000 = 20

4) y = 3500 (1.035)^ 20 = 6964

Answer: 6964.

3 0

3 years ago

Why is it incorrect to say that 5o percent heritability of intelligence means that the cause of your intelligence is 50 percent

pentagon [3]

Answer with explanation:

It is incorrect to say that 50% heritability of intelligence means that the cause of the intelligence is 50% genetic and 50% environmental.

<em><u>Because heritability accounts for variations among people, not in specific individuals which means that the cause is not 50% environmental or 50% genetic but rather based on variations among individuals</u></em>

8 0

3 years ago

How did the temperature change if: at first it decreased by 60% and then increased by 80%. PLEASE NEED HELP!

Sergio039 [100]

The temperature decreased by 28%

Step-by-step explanation:

How did the temperature change if :

At first it decreased by 60%
Then increased by 80%

Assume that the temperature before decreasing is 100%

∵ The temperature before decreasing = 100%

∵ It decreased by 60%

→ Before decreasing : decreasing : after decreasing

→ 100% : 60% : 100% - 60% = 40%

∴ The temperature after decreasing = 40%

Assume that the temperature after decreasing is 100%

∵ The temperature after decreasing = 100%

∵ It increased by 80%

By using the ratio method

→ After decreasing : increasing : after increasing

→ 100% : 80% : 100% + 80% = 180%

→ 40% : : x%

By using cross multiplication

∴ 100% × x% = 40% × 180%

- Divide both sides by 100%

∴ x% = $\frac{(40)(180)}{100}$

∴ x% = 72%

∵ At first the temperature = 100%

∵ At last the temperature = 72%

∵ The first the temperature > the last the temperature

∴ The decreasing in temperature = 100% - 72% = 28%

The temperature decreased by 28%

Learn more:

You can learn more about ratio in brainly.com/question/2707032

#LearnwithBrainly

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3 years ago

The football team is selling autographed school jerseys for a fund raiser. The tea buys 100 jerseys for $1400. Each autographed

nekit [7.7K]

Answer:

100

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

How many real number solutions does the equation have

Ksju [112]

You have to find the discriminat b^2 -4ac

If it is > 0, the function has two real solutions
if it is = 0, the function has one real solution
if it is <0, the function has no real solution

6^2 - 4(7)(3) = 36 - 84 = - 48

Answer c. no solution

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3 years ago