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3 years ago

What addition double fact can help you find 4+3? Explain how you know

Mathematics

1 answer:

cestrela7 [59]3 years ago

6 0

3+4 because they are both the same answer

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Help me please 15 points answer

professor190 [17]

Part A is 6 and the bottom one is "Take a line and connect it from point C to the middle of A and B then put another line connecting to D to the middle of A and B"

4 0

3 years ago

Melodys family wants to go to Hawaii, which is a 3,700 mile airplane ride. Write the number of miles in scientific notation

jenyasd209 [6]

Answer:

$3.7*10^3$

Step-by-step explanation:

Step one:

given data

3,700 mile

In scienctific notation or in standard form 3,700 mile is expressed as

$3.7*10^3$

7 0

3 years ago

Determine the unknown side of the similar triangle.<br> A) 8 <br> B) 12 <br> C) 18 <br> D) 24

blsea [12.9K]

Answer:

B-12

Step-by-step explanation:

Since 24÷12=2 you have to do 6×2 to find the ? and 6×2=12

8 0

3 years ago

9/20

NISA [10]

For this case we must find the solution of the following quadratic equation:

$x ^ 2 + 5x + 7 = 0$

Where:

$a = 1\\b = 5\\c = 7$

Then, the solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}$

By definition we have: $i ^ 2 = -1$

$x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}$

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0

3 years ago

The point (3,2) reflected in the x-axis is (

ioda

Answer:

reflected across the x-axis is 3,-2 and the y axis is -3,2

Step-by-step explanation:

When you reflect over the X axis it will stay the same numbers but change the Y axis sign. the same thing happens to the y -axis but the x changes siogns instead

8 0

3 years ago