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ValentinkaMS [17]
3 years ago
9

CDA=XYZ

Mathematics
2 answers:
Anarel [89]3 years ago
8 0
The triangles are ACD and XYZ

Congruent segments means that they have the same length.

Then CD = XY, AC = ZX and AD = ZY

This is the option B. from the list.

Answer :<span>B.CD=XY,DA=YZ,AC=ZX</span>
viva [34]3 years ago
3 0

Answer:

Option B is correct.

Step-by-step explanation:

Given: CDA \cong XYZ

Since, the given two triangles are congruent.

By congruence statement:

If three sides in one triangle is congruent to three sides of second triangle then these triangles are congruent.

then;

by congruence statement:

CD \cong XY

DA \cong YZ

AC \cong ZX

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the zero of the quadratic polynomial x^2+99x+127 are a both positive b both negative c one +ve one-ve d both equal. please help​
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Step-by-step explanation:

By Descrates' Rule of Signs,

x² + 99x + 127 changes sign 0 times.

Hence it has 0 positive roots.

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2 years ago
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Rewrite the following improper fraction as a mixed number : 19/5
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3 4/5

Step-by-step explanation:

8 0
3 years ago
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Element X is a radioactive isotope such that its mass decreases by 26% every day. If an experiment starts out with 810 grams of
ioda

Answer:

The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.

The function to represent the mass of the sample after t days is A(t) = 810(0.74)^t

Step-by-step explanation:

Exponential equation of decay:

The exponential equation for the amount of a substance is given by:

A(t) = A(0)(1-r)^t

In which A(0) is the initial amount and r is the decay rate, as a decimal.

Hourly rate of change:

Decreases 26% by day. A day has 24 hours. This means that A(24) = (1-0.26)A(0) = 0.74A(0); We use this to find r.

A(t) = A(0)(1-r)^t

0.74A(0) = A(0)(1-r)^{24}

(1-r)^{24} = 0.74

\sqrt[24]{(1-r)^{24}} = \sqrt[24]{0.74}

1 - r = (0.74)^{\frac{1}{24}}

1 - r = 0.9875

r = 1 - 0.9875 = 0.0125

The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.

Starts out with 810 grams of Element X

This means that A(0) = 810

Element X is a radioactive isotope such that its mass decreases by 26% every day.

This means that we use, for this equation, r = 0.26.

The equation is:

A(t) = A(0)(1-r)^t

A(t) = 810(1 - 0.26)^t

A(t) = 810(0.74)^t

The function to represent the mass of the sample after t days is A(t) = 810(0.74)^t

5 0
2 years ago
A contractor is required by a county planning department to submit one, two, three, four, or five forms (depending on the nature
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Answer:

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