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3 years ago

How many degree has ABC

Mathematics

1 answer:

SpyIntel [72]3 years ago

3 0

this triangle is obtuse meaning the degree it's currently at is 270°

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Simplify this rational expression. 2x^2+5x+3/2x^2-x-3

Murljashka [212]

Answer:

$2x+3$ / $2x-3$

Step-by-step explanation:

firstly we make two steps to simplify this question.

1st step: simplify $2x^{2} +5x+3$

to simplify this we use factorization

$2x^{2} +2x+3x+3$

$2x(x+1) +3(x+1)$

$(2x+3) (x+1)$ .....(1)

2nd step:simplify $2x^{2} -x-3$

$2x^{2} +2x-3x-3$

$2x(x+1)-3(x+1)$

$(2x-3)(x+1)$ .....(2)

now dividing (1) and (2), we get the answer

$2x+3/2x-3$

5 0

3 years ago

What is 175.42 rounded to the nearest tenth?

weqwewe [10]

175.4 because 4 is the tenth place and 2 would round down

4 0

2 years ago

Given: angle 1 and angle 2 form a linear pair,

iris [78.8K]

Answer:

Look at the proof down

Step-by-step explanation:

The given is;

→ ∠1 and ∠2 form a linear pair

→ ∠1 ≅ ∠3

We want to prove;

→ ∠2 and ∠3 are supplementary

<em>We will write the proof in like a table</em>

1. ∠1 and ∠2 formed a linear pair ⇒ 1. Given

2. m∠1 + m∠2 = 180° ⇒ 2. Sum of angles on a straight line

3. ∠1 and ∠2 are supplementary angles ⇒ 3. Supplementary angles add up to 180°

4. ∠1 ≅ ∠3 ⇒ 4. Given

5. m∠2 + m∠3 = 180° ⇒ 5. Substitution method

6. ∠3 is a supplement of ∠2 ⇒ 6. Supplement of equal angles

7. ∠2 and ∠3 are supplementary ⇒ 7. Proved

8 0

3 years ago

If inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year, what would you expect to pa

tamaranim1 [39]

Answer:

$76.5

Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

$\text{Price of pair of jeans this year}=\$75+\$75\times\frac{2}{100}$

$\text{Price of pair of jeans this year}=\$75+\$75\times0.02$

$\text{Price of pair of jeans this year}=\$75+\$1.5$

$\text{Price of pair of jeans this year}=\$76.5$

Therefore, the price of pair of jeans would be $76.5 this year.

7 0

2 years ago

Mr. Barnett’s test is normally distributed with a mean of 65 with a standard deviation of five points what is the probability th

uranmaximum [27]

Answer: 2.5%

Step-by-step explanation:

Mean score = 65

Standard deviation = 5

Score (x) = >75

Z-score = [(score - mean) ÷ standard deviation]

Z - score = [(75 - 65) ÷ 5]

Z - score = 10 ÷ 5 = 2

P(score higher than 75) = 100 - 95 = 5/2 = 2.5%

4 0

2 years ago