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irga5000 [103]
2 years ago
14

PLS HELP ASAP DUE IN 40 MINUTES

Mathematics
2 answers:
Art [367]2 years ago
8 0
The pyramid has 2 pairs of congruent faces. the opposite faces will be congruent as their base length will be the same. this can be proven using SSS congruence. if the base is a square, only then can we say that all 4 faces are congruent.
Hope this helps :)
Dmitriy789 [7]2 years ago
3 0

Answer:

It is  (A)  4 congruent faces

Step-by-step explanation:

Easy to see how its the Base sides

-Hope it helped

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2. 3х - бу = 18<br> 4.<br> How do you solve for y
Gnoma [55]

Answer:

y =  - 3 +  \frac{1}{2} xxer

Step-by-step explanation:

move variable to the right-hand side and change its sign

- 6y = 18 - 3x

divide both sides of the equation

y = 3 +  \frac{1}{2} x

8 0
2 years ago
Geraldo has 3 fewer marbles than Yan. Together, they have 21 marbles. Which equation
EleoNora [17]

Answer:

geraldo has 9 marbles and yan has 12

Step-by-step explanation:

x + (x-3) = 21

x + x - 3 = 21

2 x - 3 = 21

Explanation:

In this problem, let us first analyze the situation. It says here that Geraldo and Yan both had marbles of their own. The problem states that together, they have a total of 21 marbles. However, we know here from the problem that they have different number of marbles each. Geraldo seems to have lesser number of marbles than Yan. Yan have three marbles more than Geraldo.

We can write the equation starting from assigning the unknown.

We'll use x.

x is the number of marbles that Yan have.

if x is Yan's, then, we can say that x-3 is Geraldo's.

Put them together into the equation.

Yan's plus Geraldo's is equal to 21.

Substitute using the represented unknowns.

x + (x-3) = 21.

In solving, we can also rule out that:

x + x - 3 = 21

2 x - 3 = 21

2 x = 21 + 3

2 x = 24

x = 12

x - 3 = 9

Yan has 12 marbles

and Geraldo has 9 marbles.

3 0
3 years ago
In a 30-60-90 triangle, the hypotenuse is the shorter leg times the square root of two.
olga55 [171]
The correct answer is C "never."

The hypotenuse in a 30-60-90 triangle is the shorter leg doubled. So, it's 2x where x is the shorter leg.

In fact, the square root of two is not used to calculate any other sides in a 30-60-90 triangle. The shorter leg is x, the medium leg is x√3, and the hypotenuse is 2x.
7 0
3 years ago
Hi! Can someone help me? i been on this one for a bit and need some help :) Thanks so much! The full picture is there just click
Aleks04 [339]
I’m pretty sure it’s D!! :)
8 0
3 years ago
Read 2 more answers
The Texas rangers team manager receives a delivery of 4 boxes of baseballs each box contains 50 basesballs the texas rangers tea
vekshin1

Answer:

B

Step-by-step explanation:

For each box, there is 1 defective lightbulb. Therefore, a delivery of 4 boxes will have 4 defective lightbulbs. A delivery of 2 boxes has 2 defective lightbulbs. 4 defective lightbulbs subtracted by 2 defective lightbulbs equals 2 more defective lightbulbs in 4 boxes than 2. Therefore, it is B.

3 0
3 years ago
Read 2 more answers
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