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2 years ago

X, Y and Z form the vertices of an isosceles triangle.

Mathematics

1 answer:

liq [111]2 years ago

4 0

Answer:

∠XYZ = 37.5

Step-by-step explanation:

IN THE IMAGE ABOVE

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What is the solution to the system of equations?

tekilochka [14]

<span>simplify third eqn -2x+5y+2x=4
5y=4
y=4/5

substitute back to 1st n 2nd eqn n solve for x n z
-4x-4-z=18 and -2x-4-2z=12
simplify -4x-z=22 and -2x-2z=16
-4x-(-x-8)=22
-3x+8=22
x=-14/3
z=-10/3
y=4/5

</span>

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3 years ago

Find the sum.

stiv31 [10]

Answer:

ssss

Step-by-step explanation:

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3 years ago

Does x/x+6 simplfiy to 1/6?

OleMash [197]

<span>x/x+6 simplfiy to 1/6 = 0, So your answer is 0</span>

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3 years ago

Brady said that the expression 2.6 - (1.3 - 4.5) is equivalent to 1.3 - 4.5. Work out the problem and explain in writing Brady’s

Sergeu [11.5K]

Answer:

Brady did not distribute the -1 correctly.

Step-by-step explanation:

The given expresion is

$2.6 - (1.3 - 4.5)$

Recall that for all real numbers a, b, and c, the distributive property says that:

$a(b + c) = ab + ac$

We apply this property to get:

$2.6 - (1 .3 - 4.5) = 2.6 - 1.3 + 4.5$

$2.6 - (1 .3 - 4.5) = 1.3 + 4.5$

But Brady said it is equivalent to 1.3-4.5

Hence Brady did not apply the distributive property correctly.

4 0

3 years ago

What is the arithmetic mean of the integers from 16 to 20, inclusive?

DIA [1.3K]

The mean of sequential integers is the middle number, namely 18.

Alternatively, we can calculate the mean
(16+17+18+19+20)/5=90/5=18.

We can also think of the mean as
(18-2+18-1+18+18+1+18+2)/5=5*18/5=18

5 0

3 years ago