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liubo4ka [24]
3 years ago
5

Can anyone help me answer this?!?!

Mathematics
1 answer:
Rainbow [258]3 years ago
5 0

angle BCA should be the same as angle CAD -> 20°

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Which quadratic function has a y-intercept of 4?
8090 [49]

Answer:

This tells us that the vertex is at (−2, 9) and the equation of the axis of symmetry is x = −2. To find the x-intercepts, we put y = 0 to obtain

(x + 2)2 − 9 = 0

(x + 2)2 = 9

x + 2 = 3  or  x + 2 = −3

 x = 1   or   x = −5.

Step-by-step explanation:

Image result for Which quadratic function has a y-intercept of 4? y=x2−2x+4 y=x2+2x+9 y=−x2+3x y=x2+13x+12

The standard form of a quadratic equation is written as y=ax2+bx+c, where x and y are variables and a, b, and c are known constants. To find the y-intercept from a quadratic equation, substitute 0 as the value for x and solve. The y-intercept is always equal to the value of c in the equation.

3 0
2 years ago
Read 2 more answers
a submarine travels at an elevation of -75 3/4 ft relative to sea level then its elevation changes by - 16 3/8 what is the new e
slamgirl [31]

Answer:

New = -92\frac{1}{8}

Step-by-step explanation:

Given:

x = -75\frac{3}{4} --- Position

\triangle x = -16\frac{3}{8} --- Change

Required

Find the new position

The new position is calculated as:

New = x + \triangle x

New = -75\frac{3}{4} - 16\frac{3}{8}

New = -75.75 - 16.375

New = -92.125

New = -92\frac{125}{1000}

New = -92\frac{1}{8}

3 0
3 years ago
Use a ratio to compare the values. Simplify the ratio. 5 m to 100 cm
SSSSS [86.1K]
The answer is 
c - 5 : 1
5m = 500 cm
6 0
3 years ago
Brian invests £1800 into his bank account.
Andrej [43]

Answer:

<u>≈£2412</u>

Step-by-step explanation:

1800(0.05)^6

≈£2412

4 0
3 years ago
Explain the different ways it is possible to add two rational numbers and get a negative number.
Eduardwww [97]

<u>Answer:</u>

both numbers are negative

negative number is greater than the positive number

<u>Step-by-step explanation:</u>

In order to add two rational numbers and get a negative value, one of two scenarios should occur:

<u>1- both numbers are negative.</u>

2- negative number is greater than the positive number

3 0
3 years ago
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