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PolarNik [594]
2 years ago
13

Select the expression that has a value of 4

Mathematics
1 answer:
Harrizon [31]2 years ago
4 0

Answer:

The answer is letter D.

Step-by-step explanation:

320/80

=4

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The line passing through (-2,5) and (2,p) has a gradient of -1/2. <br><br> Fnd the value of p
makkiz [27]

Given:

The line passing through (-2,5) and (2,p) has a gradient of -\dfrac{1}{2}.

To find:

The value of p.

Solution:

If a line passes through two points, then the slope of the line is:

m=\dfrac{y_2-y_1}{x_2-x_1}

The line passing through (-2,5) and (2,p). So, the slope of the line is:

m=\dfrac{p-5}{2-(-2)}

m=\dfrac{p-5}{2+2}

m=\dfrac{p-5}{4}

It is given that the gradient or slope of the line is -\dfrac{1}{2}.

\dfrac{p-5}{4}=-\dfrac{1}{2}

On cross multiplication, we get

2(p-5)=-4(1)

2p-10=-4

2p=-4+10

2p=6

Divide both sides by 2.

p=3

Therefore, the value of p is 3.

4 0
3 years ago
The function f(x) = 6x + 5 is one-to-one.<br> Find an equation for f '(x), the inverse function.
Hatshy [7]
Switch the x and y values and isolate y, then simplify.
x=6y+5
6y=x-5
y=1/6x-5/6
4 0
3 years ago
-4(2x + 12) in distributive property​
nikitadnepr [17]

Answer:

−8x − 48

Step-by-step explanation:

5 0
3 years ago
Plz help me. I'm confused on hw​
r-ruslan [8.4K]
Answer: Yes by SAS

Why: they have two equal sides makes by the dashes and two 90 degree angles in the same places on both triangles meaning that the other side next to the 90 degree angle had to be equal as will

Hope this helps :D
4 0
3 years ago
The length of six pipes were measured and recorded as follows 2.5m, 6.25m, 4.Om, 2.5m, 3.75m and 6.5m. What is the median length
yaroslaw [1]

Answer:

3.875

Step-by-step explanation:

5 0
2 years ago
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