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
devlian [24]
3 years ago
15

Please help!!!!!>>>>>>

Mathematics
1 answer:
12345 [234]3 years ago
3 0

Answer:

-3.3

Step-by-step explanation:

-2.3-(4.5-3 1/2)=-2.3-(4.5-3.5)=-2.3-(1)=-3.3

You might be interested in
Please Hurry ...Which expression is equivalent to
swat32

Answer:

\huge\boxed{\sf \frac{160rs^5}{t^6}}

Step-by-step explanation:

\sf 5r^6t^4 ( \frac{4r^3s^tt^4}{2r^4st^6} ) ^5

Using rule of exponents \sf a^m/a^n = a^{m-n}

\sf 5r^6t^4 ( 2 r^{3-4} s^{2-1}t^{4-6})^5\\5r^6t^4(2r^{-1}st^{-2})^5\\5r^6t^4 * 32 r^{-5}s^5t^{-10}

Using rule of exponents \sf a^m*a^n = a^{m+n}

\sf 160 r^{6-5}s^5t^{4-10}

\sf 160 rs^5 t^{-6}

To equalize the negative sign, we'll move t to the denominator

\sf \frac{160rs^5}{t^6}

8 0
3 years ago
The display gives the result of performing a quadratic regression on a data set where the inputs are speeds in miles per hour an
alina1380 [7]
Y = a x² + b x + c
y = 0.0473809524 · 20² + 2.221428571 · 20 - 0.005952381 = 
= 18.95236 + 44.42875 - 0.05952381 = 63.374978 ≈ 63.4
Answer: C ) 63.4 ft.
7 0
3 years ago
5. Solve the equation z^2 + 4z - 9 = 0 by completing the square.
Luba_88 [7]

Answer:

A. Z = 2 + N13

Step-by-step explanation:

Let's solve your equation step-by-step.

0=z2+4z−9

Step 1: Subtract z^2+4z-9 from both sides.

0−(z2+4z−9)=z2+4z−9−(z2+4z−9)

−z2−4z+9=0

For this equation: a=-1, b=-4, c=9

−1z2+−4z+9=0

Step 2: Use quadratic formula with a=-1, b=-4, c=9.

z=

−b±√b2−4ac

2a

z=

−(−4)±√(−4)2−4(−1)(9)

2(−1)

z=

4±√52

−2

z=−2−√13 or z=−2+√13

8 0
3 years ago
→ PLEASE HELP ME !!! [99 POINTS] ←
Veronika [31]
The answer is D. The number of AP tests increases as GPA increases.
3 0
3 years ago
Read 2 more answers
Father cn go in 8 1/2 an hour.if he travel an average speed of 15 kilometer an hour?
Eva8 [605]
What I'm sorry can you time it better

6 0
3 years ago
Other questions:
  • Can someone solve this?
    8·1 answer
  • How to solve 17 = x/2 + 1​
    13·2 answers
  • What is the perimeter of this triangle?
    5·1 answer
  • .What is four fiths as a decimal?
    14·2 answers
  • I need help with this problem please
    9·1 answer
  • Solve the following equation. Then place the correct number in the box provided.
    11·1 answer
  • H(x) = x^2 + 2 - x <br> g(x) = 4x + 5 <br> find (h - g) (x/3)
    11·1 answer
  • The box plots represent the birth weights, in pounds, of babies born full term at a hospital during one week.
    6·1 answer
  • The price of a camera including taxes is 17.5% is 94 dollars. what was its price before the taxes?
    10·1 answer
  • Factor the greatest common factor: −5k2 20k − 30. −1(5k2 − 20k 30) −5(k2 − 4k 6) −5k(k2 − 4k 6) −5(k2 4k − 6)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!