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
svetoff [14.1K]
3 years ago
5

The temperature decreased from 71.5*F to 56.8*F overnight. How much did the temperature drop?

Mathematics
2 answers:
Alina [70]3 years ago
8 0
The word decreased shows that you need to use subtraction for this problem.

Take 71.5*F - 56.8*F = 14.7*F that the temperature dropped
NeTakaya3 years ago
6 0
You use subtraction:
71.5*F- 56.8*F= 14.7*F
Hope this helps~
You might be interested in
A smaller square garden has an area of 400 square meters . What is the length of one side of the garden?
crimeas [40]

Answer:

20m

Step-by-step explanation:

Area of garden = 400m²

Area = L² = 400m²

L = √400m²

L = 20m

3 0
3 years ago
Read 2 more answers
0.0007 in standard form
zhannawk [14.2K]
—————>>>>>>>. 7x10^-4
5 0
3 years ago
Read 2 more answers
Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)
Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

8 0
2 years ago
What is the value of X ?
myrzilka [38]

Answer:

=14

Step-by-step explanation:

In a rhombus, opposite angles are equal.

In the one provided in the question, 5x° is opposite the angle 70°

Let us equate the two.

5x=70

x=70/5

=14°

The value of x in the figure is 14°

4 0
3 years ago
Simplify: –4(x – 5) + 3(a – 7)
Serga [27]
-4 (x - 5) + 3 (a - 7)

First, expand your problem. / Your problem should look like: -4x + 20 + 3a - 21
Second, simplify. / Your problem should look like: -4x + 3a - 1

Answer: -4x + 3a - 1 (C)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Domain Range
    13·1 answer
  • Non-intersecting lines that are separated by equal distances at every point can best be described as _____.
    12·2 answers
  • Which statement is true about the ranges for the box plots?A number line goes from 0 to 16. Morning's whiskers range from 3 to 1
    12·2 answers
  • Simplify rational expression X^2+3/x-9
    5·1 answer
  • What is <br> 2x-3y=-19<br> 4x+3y=7<br> URGENT
    13·1 answer
  • Aaron's home, the grocery store, and the library are all on the same road. The total distance from Aaron's home to the library c
    6·1 answer
  • Find the area of the trapezoid. Leave your answer in simplest radical form.
    11·1 answer
  • In right triangle ABC shown below, what is the<br> length of BC?
    12·1 answer
  • What are the factors of 64.
    15·2 answers
  • 1. Adelle solved the equation ½ (x + 8) = - 30 as shown.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!