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erica [24]
3 years ago
7

The temperature at 5 PM was -4 degrees. By 5 AM the temperature had decreased 8 degrees. What was the temperature at 5 AM?

Mathematics
1 answer:
Julli [10]3 years ago
6 0

Answer:

-12

Step-by-step explanation:

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It a worm can travel 2.5 meters per minute, how far can the worm travel in 12 minutes?
marissa [1.9K]
Hello!

Let's solve this with a proportion.

\frac{meters}{minutes} = \frac{2.5}{1} = \frac{m}{12}

We multiply 2.5 by 12 to find x.

2.5(12)=30

The worm can travel 30 meters in 12 minutes.

I hope this helps!
7 0
4 years ago
Read 2 more answers
Simplify the expression.
Naddika [18.5K]

Answer:

3

Step-by-step explanation:

((7x-4)^2) - (7x-4)(7x-4) + 3

(7x-4)(7x-4) is 7x-4^2

So its (7x-4)^2 - (7x-4)^2 + 3

(7x-4)^2 cancel out.

Answer is 3

6 0
3 years ago
Some isosceles triangles are not equilateral.<br> O A. True<br> O B. False
Sergeu [11.5K]
I looked it up, it says eq triangles have 3 sides. An isos triangle is one with 2 equal sides. Every eq triangle is isos, but not every isos triangle is equilateral. I think the statement in the photo is true.
6 0
3 years ago
Can anyone HELP with my HOMEWORK for GRADE‼️
noname [10]

Answer:

The coordinates of point C are (a,0).

Step-by-step explanation:

Given information: ABC is right isosceles triangle.

From the given figure it is noticed that the side BC is hypotenuse of the triangle ABC.

By pythagoras theorem,

hypotenuse^2=leg^2+leg^2

hypotenuse^2=2leg^2

hypotenuse=leg\sqrt{2}

Therefore hypotenuse cannot be equal to leg. So, we can say that in triangle ABC,

AB=AC

Length of AB is

AB=\sqrt{(a-0)^2+(0-0)^2}=a

From the figure it is noticed that the point C lies on the x-axis, therefore the y-coordinates of C is 0.

Let the coordinates of C be (x,0) and length of AC must be a.

AC=\sqrt{(x-0)^2+(0-0)^2}

a=x

Therefore coordinates of point C are (a,0).

5 0
4 years ago
Graph the following equation using X- and y-intercepts.<br> x + y = -3
Kitty [74]

Answer:

x-intercept: (-3,0)

y-intercept: (0,-3)

Step-by-step explanation:

Looking at the equation, we can see that it is already in standard form, or in a Ax+By=C format. Whenever a line is put into standard form, the x-intercepts are represented by (\frac{C}{A},0) and the y-intercepts are represented by (0, \frac{C}{B} ). So, let's calculate them by doing the following:

1) Find the x-intercept by using the (\frac{C}{A},0) formula. Substitute the number on the right side of the equation for C and the coefficient for the x term for A. So, in this case, C = -3 and A = 1:

(\frac{C}{A},0)\\\\(\frac{-3}{1},0)  \\(-3,0)

Therefore, the x-intercept is (-3,0).

2) Next, find the y-intercept by using the (0,\frac{C}{B} ) formula and substituting the right values. C is still the number on the right side of the equation and B is the coefficient of the y term. So, C = -3 and B = 1.

(0,\frac{C}{B})\\ (0, \frac{-3}{1})\\(0, -3)

Therefore, (0, -3) is the y-intercept.

7 0
3 years ago
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