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SashulF [63]
3 years ago
13

The figure shows the dimensions of a metal sign. The shaded part of the sign is painted blue.

Mathematics
1 answer:
Sonja [21]3 years ago
4 0

Step-by-step explanation:

the area of a triangle is

baseline × height / 2

we have here 2 triangles : the larger, outer shaded one, and the smaller, inner white one.

to get the area of the shaded part, we need to calculate the area of the large triangle and subtract the area of the smaller triangle.

large area :

12 × 15 / 2 = 6 × 15 = 90 ft²

small area :

8 × 10 / 2 = 4 × 10 = 40 ft²

the shaded area is

90 - 40 = 50 ft²

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Predict what the graph of the following quadratic function will look like. (If you have a graphing calculator, you can use it to
Alex17521 [72]

Answer:

u-shaped; y-intercept (0,6); symmetrical with respect to the y-axis

Step-by-step explanation:

Given that y = 2x² + 6

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For this question, since a > 0 it would be u shaped and the intercept can be gotten by putting x = 0.

Therefore y = 0² + 6 = 0

The intercept is at (0,6) and is symmetrical with respect to the y-axis

3 0
3 years ago
The key for a stem-and-leaf plot is 12|5 = 125.
muminat

Answer: Option C. 55

Solution:

The key for a stem-and-leaf plot is:

   12   |    5   =   12      5

Stem | Leaf = Stem Leaf

   55   |   6   =   55     6

Stem: 55

Leaf: 6                                                  

5 0
3 years ago
Read 2 more answers
Bagels: six in a bag Apples: eight in a bag Cookies: twelve in a box Juice Boxes: nine in a box Find the least number of package
morpeh [17]
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3 years ago
When solving a system by substitution, one should
neonofarm [45]
B, because to substitute for a variable you have to have an equation to substitute first.
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Which graph represents a proportional relationship?
dalvyx [7]

Answer:

Step-by-step explanation:

The first one as it is a sloping straight  passing through the origin.

3 0
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