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3 years ago

HELP ASAP ASAP!! NO LINKS PLEASEEEE OR U WILL BE REPORTED, I NEED AN ANSWER, WILL GIVE BRAINIEST!!

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

Answer:55555555

Step-by-step explanation: 555555555555

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Which way shows how to make a ten to solve 13-7

DedPeter [7]

If you want to make 10, you can take 3 from the 13 and add it to the 7. You will then have 10+10 which equals 20.

8 0

3 years ago

Question 3 Unsaved

bazaltina [42]

Answer:

Step-by-step explanation:

DE given is

y''+8y'+15y=0, y(0)=0, y'(0)=1

Take Laplace on the DE

We get

$s^2 Y(s) -sY(0) -y'(0)+8(sY(s)-y(0))+15Y(s) =0\\s^2 Y(s) -s(0) -1+8(sY(s)-0)+15Y(s) =0\\Y(s)(s^2+8s+15)-1=0\\Y(s) = \frac{1}{s^2+8s+15}$

Simplify to get

Y(s) = $\frac{1}{2}[ {\frac{1}{s+3} -\frac{1}{s+5} }]$

Take inverse

$y(t) = \frac{e^{-3t} -e^{-5t}}{2}$

8 0

3 years ago

HURRYYYYY

Troyanec [42]

Answer:

B is correct.

Step-by-step explanation:

Quadratic Expression (Standard Form) is:

$\displaystyle \large{a {x}^{2} + bx + c}$

To say it simply, the expression must have 2 as the highest degree.

This means that if there are any higher or lower degrees than 2 then they are not quadratic expression.

A choice is not quadratic expression because it has 1 as the highest degree.

B choice is correct because 2 is the highest degree.

C choice is wrong because 3 is the highest degree.

D choice is wrong because it is not a polynomial.

Therefore, B is correct.

7 0

3 years ago

3. Identify a ray in the following figure.

shutvik [7]

Answer:

D- HM

Step-by-step explanation:

A ray has one point and one side that goes on forever. We see this expressed with HM

HK is a line

HM is a ray

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3 years ago

Side :44 mm,28 mm,24 mm what is the triangle

bagirrra123 [75]

This is an scalene triangle because a scalene triangle has no equal size

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3 years ago