1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natalka [10]
2 years ago
11

My last points to ask a question pls show work

Mathematics
2 answers:
BartSMP [9]2 years ago
6 0

Answer:

-9.5

Step-by-step explanation:

8.4×3=25.2

negative25.2- 5.7 equals negative 19.5 - 10. hey hi if my answer doesn't match with the answer in your book could you please tell me right away so that I can try another method or ask for help I would really like to help you bye.

const2013 [10]2 years ago
5 0

Answer:

14.  27

16.  170

Step-by-step explanation:

We must follow Order of Operations rules here.  Work inside parentheses must be done first, then exponentiation, then multiplication and division, and finally addition and subtraction.

((5·7) - (8·4))³ becomes (35 - 32)³, or 3³, or 27.

16.  7² + ((46 - 7·2) + 2³)² becomes 7² + ((46 - 49) + 8)²

Again, do the work inside parentheses first:

7² + (3 + 8)² becomes 49 + 11², or 49 + 121, or, finally, 170

You might be interested in
One exterior angle of a regular polygon measures 97°. What is the measure of one interior angle?
3241004551 [841]

Hello :) = Merhaba :)

Answer:

<h3><u><em>83°</em></u></h3>

Step-by-step explanation:

The total angle of a polygon and its external angle must be 180°.

So the inner angle of this polygon:

180 - 97 = 83° would.

NOTE: I'm not American. I'm just a Turk who wants to help you. So if my sentences are wrong, please forgive me.

<em><u>#Cevapistevereyim</u></em>

Başarılar :) = Achievements :)

4 0
3 years ago
The sum of the diagonals of a rhombus is 5√2.
Alex
Greetings!
Let ABCD be a rhombus
AC + BD = 5√2 cm

Area of ABCD = Ar△ABD + Ar △BCD
= \frac{1}{2} \times BD \times AO + \frac{1}{2} \times BD \times OC
= \frac{1}{2} BD (AO + OC)
\frac{1}{2} BD \times AC

So, \frac{ BD \times AC}{2} = 4 \: cm {}^{2}
BD \times AC = 8
Now, AC + \: BD = 5 \sqrt{2}

Squaring both sides, we get
AC {}^{2} + BD {}^{2} + 2 AC.BD =50
AC {}^{2} + BD {}^{2} + 2 \times 8 = 50
AC {}^{2} + BD {}^{2} = 50 - 16
AC {}^{2} + BD {}^{2} = 34

In △AOB, we have
OA {}^{2} + OB {}^{2} =AB {}^{2}
( \frac{ AC }{2} ) {}^{2} + ( \frac{ BD}{2} ) {}^{2} = AB {}^{2}
\frac{ AC {}^{2} } {4} + \frac{ BD {}^{2} }{4} = AB {}^{2}
AC {}^{2} + BD {}^{2} = 4 AB {}^{2}
34 = 4 AB {}^{2}

Square rooting both sides
\sqrt{34} = 2 AB
Perimeter = 4 \: AB \\ = 2 \times 2 \: AB \\ = 2 \: \times \sqrt{34 } \\ = 2 \sqrt{34 \: } units.

Hope it helps!

7 0
3 years ago
What does 2+2 equal to<br>​
Mazyrski [523]

Answer:

Step-by-step explanation:

1

5 0
3 years ago
Read 2 more answers
On a maps coordinate grid, Walt City is located at (-1,-3) and Koshville is located at (4,9). How long is a trains route as the
Valentin [98]
5 blocks away from W to K.
3 0
3 years ago
The sum of 5xy and (2xy + xy) is
AleksAgata [21]
8xy that is the answer
4 0
3 years ago
Other questions:
  • Which of the following statements about 42xy – 49x + 30y – 35 are true? Check all of the boxes that apply.
    13·2 answers
  • What does d=1/2gt^2 solve?
    7·1 answer
  • What is the value of -d when d=-2?
    15·2 answers
  • Find the coordinates of the midpoint of the segment given its endpoints. <br> P(-3,-7) and Q(3,-5)
    8·1 answer
  • Mrs tuyen uses 5/8 of a tank of gas each week to drive to and from his job how many tanks of gas does Mr. too can use in five we
    10·1 answer
  • The temperature increased from (-3) degrees to (+12) degrees on Friday what was the temperature change over the course of the da
    7·1 answer
  • Hisako sells dolls at her doll store. If she sells a doll for $35, and there is 6% sales tax, what is the tax amount a customer
    12·1 answer
  • What type of number is 15.3012?
    12·2 answers
  • Please i need this fast and a explanation
    13·1 answer
  • Help i will mark Brainliest PLZZ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!