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Serhud [2]
3 years ago
7

Evaluate the expression. 7⋅4+6−12÷4

Mathematics
1 answer:
STALIN [3.7K]3 years ago
8 0

Answer:

27+6-2=31

Step-by-step explanation:

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A triangle has sides with lengths of 5 meters, 6 meters, and 8 meters. Is it a right triangle?
Sever21 [200]

Answer:

No, it is not a right triangle

Step-by-step explanation:

A scalene right triangle comprised of integers must have the same ration as 5:4:3, and 5:6:8 is not it.

8 0
2 years ago
*PLEASE ANSWER DIFFICULT QUESTION* What is the area of the polygon?
LenaWriter [7]

Answer:

Option 4, 64 cm^2

Step-by-step explanation:

The polygon in the shape of a star can be made to be easier to find the area of by cutting it into triangle. For all the "point edges" of the star, we can cut them in half from the vertex to create two right-angled triangles at each edge.

The formula of the area of a triangle is bh/2: the height is given as 6cm, the base is 4cm /2 (after you cut it in half) and so is 2 cm. Since the edges can be cut into two, there are 8 right angled triangles at the edges in total.

To find the area of them:

A=8(bh/2)=8(2*6/2)=48 cm^2

However, we are still missing the part at the centre we haven't found the area of, the square. The area of a square is given by the square of the side length(4cm). Thus, A=4*4=16cm^2

Adding the areas of all the edges and the square:

48 + 16 = 64cm^2

Hence, the area of the polygon is 64cm^2

5 0
3 years ago
Read 2 more answers
I need help with some grade 10 math something to do with graphing
Vilka [71]
Vertex: (2,1)
axis of symmetry: (0,2)
direction of opening: up
not sure what optimal value is.
y-intercept: (0,5)
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3 0
3 years ago
a soccar team spent $55 dollars on supplies for a car wash then earned $275 whats their total after paying for supplies
IrinaK [193]
To find what profit they made, subtract what they earned from what they spent money on. 275-55=220. They made a total of $220 after paying for supplies. I hope this helps! :)
8 0
3 years ago
Write equivalent fractions for 3/5 and 1/4 using 20 as a common denominator
frez [133]

Answer:

12/20 and 5/20

Step-by-step explanation:

for 3/5is multiplied with 4 both numerator and denominator

as known as 1/4 will multiplied by 5/5

4 0
3 years ago
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