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
icang [17]
3 years ago
8

What the answer now question

Mathematics
1 answer:
sergejj [24]3 years ago
3 0

Answer:

69 is your answer

Step-by-step explanation:

Have a wonderful day and good luck on you're test!

You might be interested in
16. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
il63 [147K]

Answer:

Given equation are:

y = -\frac{1}{4}x+8                  ......[1]

-2x+8y = 4                             .....[2]

  • The two lines are parallel lines then their slopes will be equal.
  • When two lines are perpendicular then, the slope of lines are the negative reciprocals of each other.

Now, Equation of a line is in the form of y =mx+b where m is the slope of the line.

Slope(m_1) of equation of line in [1] is;

y = -\frac{1}{4}x+8  

then;

m_1= -\frac{1}{4}

Slope(m_2) of equation of line in [2];

-2x+8y = 4

Add both sides 2x we get;

-2x + 8y + 2x = 2x + 4

Simplify:

8y = 2x +4

Divide both sides by 8 we get;

y = \frac{1}{4} x + \frac{1}{2}

then;

m_2 = \frac{1}{4}

Therefore, the given two lines are neither parallel nor perpendicular.

4 0
4 years ago
One card is dealt from a 52 card deck. Find the probability that the dealt card is a 4 or a black 7
patriot [66]

Answer: 6/52 (Fraction)


Step-by-step explanation:

We know that there is 26 black cards, therefore 2 black 7's we also know there is four 4's in the pack therefore we add the 2 + 4 = 6 and it has to be in a fraction so it becomes 6/52

5 0
3 years ago
Read 2 more answers
A certain test preparation course is designed to help students improve their scores on the GMAT exam. A mock exam is given at th
Bogdan [553]

Answer:

95% confidence interval for the average net change is between a lower limit of 11.709 and an upper limit of 30.921.

The critical value that should be used in constructing the confidence interval is 4.303.

Step-by-step explanation:

Confidence interval is given as mean +/- margin of error (E)

mean = (17+20+26)/3 = 63/3 = 21

sd = sqrt[((17-21)^2 + (20-21)^2 + (26-21)^2) ÷ 3] = sqrt(42÷3) = sqrt(14) = 3.74

n = 3

degree of freedom = n-1 = 3-1 = 2

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (t) corresponding to 2 degrees of freedom and 5% significance level is 4.303.

The critical value is 4.303

E = t×sd/√n = 4.303×3.74/√3 = 9.291

Lower limit of mean = mean - E = 21 - 9.291 = 11.709

Upper limit of mean = mean + E = 21 + 9.291 = 30.291

95% confidence interval is (11.709, 30.391)

8 0
3 years ago
Please help me with my homework this is 5th grade work btw
oksano4ka [1.4K]

Answer:

21

Step-by-step explanation:

Can I have brainliest:)

3 0
3 years ago
Read 2 more answers
3b^2-4b+1=0 solve each equation with the quadratic formula
hjlf
First multiply 3 and the 1
Then simplify b^2-4b+3=0
Then divide both numbers by 3 (b-3/3)(b-1/3)=0
If it doesn’t go in even like the second term then bring it before the B
Then equal both terms to 0 and solve

7 0
4 years ago
Other questions:
  • Which of the following numbers belong to the set of complex numbers AND The set of imaginary numbers? Select all that apply.
    8·1 answer
  • Acceleration of 10kg Maas's pushed by a 5n force
    12·1 answer
  • Can someone help me on Domain and Range.
    9·2 answers
  • So the equation h/9=7
    11·2 answers
  • Pani Natalia kupiła 30 kg jabłek za 75 zł i 16 kg ogórków za 104 zł. Oddała sąsiadce 2/5 (dwie piąte) jabłek i 2/5 ogórków. Jaka
    14·1 answer
  • 83 is 100% of what number​
    5·2 answers
  • Please show work pls!!!
    8·1 answer
  • 10/14 divided by 4/7 is what number?<br><br><br> Answers should be written in simplest form.!!!!
    6·2 answers
  • Help me i need help!!!!!!!!!
    5·2 answers
  • Hey you can help me out with this
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!