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3 years ago

A store pays $10.56 fora map of Africa and marks the price up by

Mathematics

1 answer:

nignag [31]3 years ago

6 0

Essentially, 50% of $10.56 is $5.28.

This means that all we have to do is add $10.56 to $5.28, making $15.84

Side note: Another way that you can do this is by simply doing 1.5(10.56).

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"-8 is 12 less than a number."

stiks02 [169]

Answer:

The answer would be x<4

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3 years ago

Simplify.

alexgriva [62]

Answer:

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3 years ago

What are the coordinates of the orthocenter of △JKL with vertices at J(−4, −1) , K(−4, 8) , and L(2, 8) ?

kompoz [17]

Answer:

K(-4,8) is the ortho center.

Step-by-step explanation:

In a right angled triangle, The vertex of the right angle is the ortho center.

Here we are given

J(-4,-1), K(-4,8) & L(2,8)

Using distance formula we get

$JK^{2}= (-4+4)^{2}+ (8+1)^{2}=0+81=81$

$KL^{2}= (-4-2)^{2}+ (8+-8)^{2}=36+0=36$

$JL^{2}= (-4-2)^{2}+ (8+1)^{2}=36+81=117$

So we can say that

$JK^2 + KL^2=JL^2$

By converse of pythagorean theorem we get

Hence the Vertex of the right angle is K(-4,8)

K(-4,8) is the ortho center.

7 0

3 years ago

What is an inequality for this graph?

shtirl [24]

Answer:

B. y ≤ |x – 2| + 4

Step-by-step explanation:

Shading is below the solid line, so the appropriate relation symbol is "less than or equal to" (≤).

Shading is below when y values less than those on the line are part of the solution set.

The line is solid when it is part of the solution set (dashed, otherwise). It is part of the solution set when y-values equal to those on the line are solutions to the inequality.

4 0

3 years ago

Find the area of a triangle help

erastova [34]

Hi there!

• Base, b = 8 units
• Altitude, a = 10 units

Area of Triangle = $\dfrac{1}{2}$ × b × a = $\dfrac{1}{2}$ × 8 × 10 = 40 units.

Hence,
Th' required area of triangle is 40 units

~ Hope it helps!

5 0

3 years ago

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