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
faust18 [17]
3 years ago
13

Evaluate piecewise functions Pls answer

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0

Step-by-step explanation:

<u>Step 1:  Find which piece-wise function it is in</u>

<em>Equation 1</em> → x < -7

Let x = -5 → (-5) < -7 ← False

<em>Equation 2 </em>→ -7 ≤ x < -5

Let x = -5 → -7 ≤ (-5) < -5 ← False

<em>Equation 3 </em>→ x ≥ -5

Let x = -5 → (-5) ≥ -5 ← True

<u>Step 2:  Find the value of h(-5)</u>

h(-5) = 4x - 3

h(-5) = 4(-5) - 3

h(-5) = -20 - 3

h(-5) = -23

Answer:  h(-5) = -23

Andrew [12]3 years ago
5 0

Answer:

-23

Step-by-step explanation:

x = -5 lies in the last piece

h(-5) = 4(-5) - 3

= -20 - 3

= -23

You might be interested in
Write the equation of the line that passes through (0,-6) and (4,10)
LenaWriter [7]

Answer:

y=4x-6

Step-by-step explanation:

to find the slope it's ((y1-y2)/(x1-x2) which in this case is (10-(-6))/(4-0) which is 16/4 aka 4

the y intercept is already given at point (0,-6)

so to write the equation is y intercept form: its y =4x-6

3 0
3 years ago
What is the area of a rectangle with a perimeter of 250 ft. when the width of the rectangle is 75
zaharov [31]

Answer: look up triangle perimeter calculator

Step-by-step explanation:

4 0
3 years ago
A random sample of 700 home owners in a particular city found 112 home owners who had a swimming pool in their backyard. Find a
vekshin1

Answer: (13.28\%,\ 18.72\%)

Step-by-step explanation:

Given : A random sample of 700 home owners in a particular city found 112 home owners who had a swimming pool in their backyard.

i.e. n= 700 and x= 112

Sample proportion : \hat{p}=\dfrac{x}{n}=\dfrac{112}{700}=0.16

z-value for 95% confidence interval : z_c=1.960

Now, the 95% confidence interval for the true percent of home owners in this city who have a swimming pool in their backyard will be :-

\hat{p}\pm z_c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

=0.16\pm (1.96)\sqrt{\dfrac{0.16(1-0.16)}{700}}

=0.16\pm (1.96)(0.013856)\\\\\approx 0.16\pm0.0272\\\\ =(0.16-0.0272,\ 0.16+0.0272)=(0.1328,\ 0.1872)=(13.28\%,\ 18.72\%)

Hence, 95% confidence interval for the true percent of home owners in this city who have a swimming pool in their backyard : (13.28\%,\ 18.72\%)

6 0
3 years ago
Explain why it’s a. Thanks
11Alexandr11 [23.1K]
The answer is A. because the side lengths of the shape doesn't change. The side lengths are still 3 and 5.
Hope this helps!
-Raiden
3 0
4 years ago
A sector with a radius 7 cm has an area of 49/3 pi cm2. What is the central angle measure of the sector in degrees?
Alekssandra [29.7K]

Answer:

120°

Step-by-step explanation:

Area of a sector is:

A = πr² (θ/360°)

Plugging in values and solving:

49/3 π = π (7)² (θ/360°)

49/3 π = 49π (θ/360°)

1/3 = θ/360°

θ = 120°

7 0
4 years ago
Read 2 more answers
Other questions:
  • Find the value of x, y, and z
    8·1 answer
  • (3x5 y2)(6x3y7) simplify
    9·2 answers
  • Find 5% of $43.79. $218.95 $2.19 $21.90 $2,189.50
    15·1 answer
  • Select the point that is a solution to the system of inequalities. y ≤ -x + 3 y ≤ x2 - 3x
    15·1 answer
  • Help asap plz i only got 10 mins per question
    11·1 answer
  • Two small circles lie on the diameter of a larger circle as shown. If AB=24cm, what is the approximate area of the shaded region
    6·1 answer
  • The scatter plot and trend line show the relationship between the number of rainy days in a month and the number of umbrellas so
    9·1 answer
  • Which represents of side that is perpendicular to side of k
    15·2 answers
  • What binomial would you multiply by itself to get a²+2a+1?
    6·1 answer
  • Which of the following represents the translation of M(8,−2) along vector &lt;−5, 1&gt; and its reflection across the y-axis?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!