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Grace [21]
3 years ago
9

Mario claims that a Rhombus is sometimes a square, but a square is always a rhombus. Is he correct? Explain your answer

Mathematics
1 answer:
KIM [24]3 years ago
8 0
No, I know this because a square is not ever a rhombus, a rhombus has acute angels and squares don't.
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Math <br><br><br> help pls!!<br><br> solve for x and y
Elan Coil [88]

Answer:

x = 7 ,  y= - 6

Step-by-step explanation:

4x = -2 - 5y ___(1)

4x= 10 - 3y ___(2)

so, now by simultaneous equations,

10 - 3y = - 2 - 5y

2y = -12

y = -6

if y = -6

then, 4x= 10 -3(-6)

4x =28

x = 7

8 0
3 years ago
White - 20 marbles
DochEvi [55]

Answer: d

Step-by-step explanation:

The probability of not being purple is the probability of the three other colors. Suppose the number of purple marbles is x. Then we have 20+30+40+x = 90 + x marbles. Then the probability of not being purple is 90/(90+x). If this fraction can have a lowest term for some value of x, then the numerator of this lowest term must be a factor of 90.

Checking through the options, only option D has a non-factor of 90 as its numerator.

8 0
3 years ago
A 12-foot ladder rests against the side of a house. The base of the ladder is 3 feet away from the side of the house. How high a
allochka39001 [22]
This is a problem for the Pythagorean Theorem: a² + b² = c², where a, b, and c are the three sides of the triangle, and c is the hypotenuse. The hypotenuse of a triangle is the side across from the 90 degree angle.

In this case, the hypotenuse, c, is 12, because the ladder is 12 feet long (and is the side across from the 90 degree angle created by the ground and the side of the house). You have one of the other sides (3 feet), so you can find the last side by plugging in the numbers:

a^2+b^2=c^2\\3^2+b^2=12^2\\9+b^2=144\\b^2=135\\\sqrt{b^2}=\sqrt{135}\\b\approx11.6 ft
7 0
4 years ago
Need help asap<br> will give brainly
padilas [110]

Answer:

The answer is A✔✔✔✔ hope that helps !!!!!!!!!!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
NEED HELP DUE IN 6 MINUTES!!!!
lesantik [10]

Answer:

120

Step-by-step explanation:

volume of triangular prism = area of base times length

the base is a triangle and the area of a triangle can be calculated by using this formula

a=\frac{bh}{2}

where b = base length and h = height

Dimensions of base

base length = 8cm and height = 3cm

Thus,

A=\frac{3*8}{2} \\3*8=24\\\frac{24}{2} =12\\

The length of the triangular prism is 10cm

Thus volume = 10 * 12 = 120

3 0
3 years ago
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