MATHEMATICS HIGH SCHOOL

Help plz i will make u a brainllest 24.Can you use the SSS Postulate or the SAS Postulate to prove abd=dca? 26 28

Answers

Answer 1

Answer:

Answer: 24) C. SSS only

26) D. DH = HF

Step-by-step explanation:

24.

Statement Reason

1. BD = CA 1. Given

2. AB = CD 2. Given

3. AD = AD 3. Reflexive Property

4. ΔABD = ΔDCA 4. SSS Congruency Theorem

We have no information about the angles so cannot use SAS Theorem.

26. G H F

E H D

Line up the letters to find the congruent sides:

⇒ GH = EH

HF = HD

GF = ED

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Each side of a regular pentagon is m + 10 inches. The formula for finding the perimeter of the pentagon is shown below. P = 5(m + 10) Which equation shows this formula solved for m? A. m =P − 5 / 10 B. m = 5P − 50 C. m = P − 50 / 5 D. m = P5 − 50

Solve 2x^2 = 72.
Question 1 options:
{±18}
{±36}
{±6}
{±8}

Answers

all you do is have to plug each option in for x
2*18^2=684
2*36^2=2592
2*6^2=72
2*8^2=128
So it's C.6

You divide both sides by 2 to get X^2=36. You then square root both sides to get X=6. The answer is d.6.

Which word describes a triangle with three angles, if each angle measures less than 90°?

Answers

Answer:

acute triangle

Step-by-step explanation:

A triangle with all angles less than 90 degrees has all angles that are acute.

Acute angles are less than 90 degrees

Which value is equivalent to 8.7% written as a decimal? A. 0.087 B. 0.87 C. 8.7 D. 87.0

Answers

To change any percent into a decimal,
move the decimal point two places this way <=== .

8.7 % ==> 0.087

8.7 : 100= 0.087
A is correct

Help me on this question please!An inequality is shown below:

−np − 6 ≤ 3(c − 5)

Which of the following solves for n?

n ≥ − the quantity 3 times c minus 21 all over p
n ≥ − the quantity 3 times c minus 9 all over p
n ≤ − the quantity 3 times c minus 21 all over p
n ≤ − the quantity 3 times c minus 9 all over p

Answers

Answer:

The correct option is B) $n\geq (-3c+9)/(p)$ .

Step-by-step explanation:

Consider the provided inequality:

$-np - 6 \leq 3(c - 5)$

Now distribute 3 inside the parentheses.

$-np - 6\leq 3c - 15$

Add 6 on both the side of the inequality:

$-np-6+6\leq 3c-15+6$

$-np\leq 3c-9$

Now, multiply both the sides by a negative sign and reverse the sign of inequality.

$np\geq -3c+9$

Divide both the sides of the inequality by p.

$n\geq (-3c+9)/(p)$

Now consider the provided options.

By observing the provided option it can be concluded that the correct option is B) $n\geq (-3c+9)/(p)$ .

it is the 2 sentence

Isabel reads 24 chapters of a book in 8 hours. what is the rate in chapters per hour?can someone please show me the steps to help me find the answer

Answers

GiveN:

Isabel reads 24 chapters of a book in 8 hours.

ToFind:

What is the rate in chapters per hour?

Step-wise-StepExplanation:

Considering that Isabel reads the book at a constant rate or we can say that no. of books she read is same for all the 8 hours.

⇒ In 8 hours = 24 chapters

⇒ In 1 hour = 24 / 8 chapters

⇒ In 1 hour = 3 chapters

That means, Isabel reads 3 chapters per hour with the same pace. The Question can be simply solved by using Unitary method $.$

Answer:

the unit rate, in chapters per hour, would be how many chapters in one hour --- but, for 23 chapters/78 hours = this fraction (23/78) is already in simplified (i.e., reduced) form --- i.e., 23 is prime, and 78 = 2(39) = 2(3)13, so 23 and 78 contain no factors in common --- so, the unit rate would be (23/78) chapters per hour --- if the problem had been, for example, 23 chapters in 69 hours, then the unit rate would have been (23/69) chapters per hour = (1/3) chapters per hour, or one chapter every 3 hours (though this is not a unit rate)

Step-by-step explanation:

im wrong but make sure u solve it and see if e

Josiah went to the barber to get his haircut.It cost $18 for the haircut.Josiah tipped the barber 15%.What was the total cost of the haircut including the tip?

Answers

Answer:

Tip -$2.70

Total -$20.70

Step-by-step explanation: