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vagabundo [1.1K]
3 years ago
11

What is the change in temperature from 15° to -9°? (the choices in the docx)

Mathematics
1 answer:
morpeh [17]3 years ago
4 0
I would say D because 15 to -9 would be going down 24.
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Write an equation that passes through a pair of points
Phoenix [80]

Answer:

C. y = -x + 2

Step-by-step explanation:

First, find the slope, m, of the line that passes through the two given points.

Slope = \frac{rise}{run} = \frac{-2}{2} = -\frac{1}{1} = -1

Next, determine the y-intercept, b.

The y-intercept is where the line intercepts the y-axis. The line intercepts the y-axis at y = 2. Therefore, b = 2.

Now, to get an equation of the line, substitute m = -1, and b = 2 in y = mx + b.

✅The equation would be:

y = -1x + 2

y = -x + 2

3 0
2 years ago
X,28,20,4 find the value of x
Olin [163]

Answer:

I would say 36

Step-by-step explanation:

because 4 ×5 is equals the 20

then 4×7 equals the 28

so 4×9 equals 36

8 0
2 years ago
Please explain how you got the answer.
photoshop1234 [79]

Answer:

Step-by-step explanation:

First, simplify the equation they give you

125x+200≥1200 ---------> 125x≥1000---------->x≥8

So, x has to be greater than or equal to 8 which rules out b or d.

So the answers are narrowed down to a and c, the only difference is that the dot in A is filled in whereas the dot in c is not. In math, having a filled in circle means that value is included (≥ sign), so we will choose the answer a.

8 0
2 years ago
Read 2 more answers
from the top of a building 10m high the angle of depression of a stone lying on the horizontal ground is 60° . calculate the dis
Alja [10]

​Answer:

14.29cm

Step-by-step explanation:

Height of the building=10cm

Angle of depression=60°

We are therefore asked to find the distance from the stone to the

the foot of the building;Therefore we use Tan ratio which is opp/adj;

Let the distance from the stone to the foot of the building be x;

10/x=Tan60°

10/x=1.7/1

We then cross multiply to get 1.7x=10

x=10/1.7

=10*10/1.7*10

=100/17

=14.29cm.

7 0
3 years ago
There are 48 students in a school play. The ratio of boys to girls is 5:7. How many boys are in the school play? Explain how you
mr Goodwill [35]
Boys:  x
gilrs:   y

From the text of the task:

\left \{ {{\frac{x}{y}=\frac{5}{7}} \atop {x+y=48 \rightarrow x=48-y}} \right.

Replacing x:

\frac{48-y}{y}=\frac{5}{7}\\
\\
7(48-y)=5y\\
\\
336-7y=5y\\
\\
12y=336\\
\\
y=\frac{336}{12}=28

So there are 28 girs and 20 boys
7 0
3 years ago
Read 2 more answers
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