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
mihalych1998 [28]
3 years ago
10

Find the difference in the weights of the largest land mammal, the male African elephant (1.4×104) and the largest sea mammal th

e blue whale (4.0×105).
Mathematics
1 answer:
Ivanshal [37]3 years ago
5 0
(4*105)-(1.4*105)
420-145.6
The answer is 274.4
You might be interested in
The coordinate plane below represents a city. Points A through F are schools in the city.
Usimov [2.4K]
Part A. The technique on how to find the equation that only applies to point D and E, is to create a line or curve that only includes two of these points. In this case, I created a random parabola that isolates points C and F from the rest of the points. First, we have to find the equation of the parabola through its general forms:

(x - h)² = +/-4a(y-k)      or    (y - k)² = +/-4a(x - h)

For parabolas drawn like that in the picture, the general form is (x - h)² = +4a(y-k), where the vertex is (h,k) and a is the distance from the vertex to the focus. From the picture, the vertex is at (0,3). Then, we use point D(-2,4) to determine a:

(-2 - 0)² = +4a(4 - 3)
4a = 4

So, the equation of the parabola is:

x² = 4(y - 3)
x² = 4y - 12

Part B. Point D was already verified above. Now for point E(2,4)
x² = 4y - 12
2² ? 4(4) - 12
4 ? 4
4 = 4

Part C. For y < 7x − 4, ignore the equality symbol first and graph the line. Assign random values of x, then you get corresponding values of y. Plot them as shown in the second picture. The line is shown in red. Next, test the equation by choosing a random point. Let's choose the purple point at (4,3).

3 ? 7(4) − 4
3 ? 24
3 < 24

Thus, it applies to the purple point, and all the other areas to that area. The shaded region are all solutions of the inequality. So, Erica is only interested in points E, C and F. 

5 0
3 years ago
Which number sentences show how to solve the problem?
exis [7]

72 ÷ 6 = 12 and 12 × 36 = 432 and 72 × 36 = 2,592 and 2,592 ÷ 6 = 432

8 0
3 years ago
Read 2 more answers
a rectangular garden is 47 ft longer than it is wide. its perimeter is 314 ft. what is the equation to describe the width and le
Ronch [10]
The perimeter = 2 length + 2 width 

the length = the width +47

314 = 2*(w+47) +2w

314 = 2w +94 +2w

220 =4w

w= 220/4 = 55

l = 55+47 = 102

the length = 102 ft

the width = 55 ft 

hope helped 

3 0
3 years ago
Find all values of a that make the |a|=0. enter the values of a as a comma-separated list
nikdorinn [45]
The only number equal to zero is zero.

Answer: a = 0
7 0
3 years ago
For what values of (m) does the graph of y=mx²-5x-2 have no x-intercepts?
Natali5045456 [20]
You need to find where the discriminant is less than zero
Remember the discriminant is b^2 - 4ac
a = m
b = -5
c = -2
Set up the inequality like this
(-5)^2 - 4m(-2) < 0
25 + 8m < 0
8m < -25
m < -25/8 < -3.125

So any number less than -3.125 will make this graph have no x-intercepts (or real roots)
5 0
3 years ago
Other questions:
  • Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = -5 - 5 cos θ
    10·1 answer
  • Which set of numbers is in the solution set for this inequality? 3x &gt; 15
    12·2 answers
  • !!!!!!!!15 POINTS FOR ANSWERING THIS CORRECTLY!!!!!!!!
    12·1 answer
  • What is a slope of (4,2) (-1,2)
    8·1 answer
  • 24^2= 20^2+34^2-2(20)(34)cos(Q)
    12·1 answer
  • You start at (-1, 2). You move right 5 units and down 6 units. Where do you end?
    8·1 answer
  • What is the circumference of a circle with a diameter of 8 feet? Use 3.14 for<br> TT.<br> d = 8 ft
    7·2 answers
  • What is the value of x in the figure? Enter your answer in the box.<br> 145°<br> (2x + 15)°<br> x=
    7·2 answers
  • ||17 ONLY|| I don’t ✨understand✨ this so ya
    5·2 answers
  • 1. the sum of five times a number and -2, added to seven times the number
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!