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777dan777 [17]
3 years ago
15

What is the simplified expression for the expression below?

Mathematics
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

Step-by-step explanation:

7(x-4)-3(x+5)

7x-28-3x-15

4x-43

qwelly [4]3 years ago
6 0

Answer:

4x-13

Step-by-step explanation:

7x-28-3x+15

7x-3x-28+15

4x-13

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What is the value of y?<br><br> Enter your answer, as an exact value, in the box.<br> y =
bekas [8.4K]

Answer:

y=2\sqrt{3}\ units

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

<em>In the right triangle ABC</em>

AC=BC -----> by a 45°-90°-45° triangle

so

cos(45\°)=\frac{BC}{AB}

BC=ABcos(45\°)

substitute the values

BC=(2\sqrt{2})(\frac{\sqrt{2}}{2})=2\ units

<em>In the right triangle BCD</em>

tan(60\°)=\frac{BD}{BC}

substitute the values

\sqrt{3} =\frac{y}{2}\\ \\ y=2\sqrt{3}\ units

4 0
4 years ago
What is the 23rd term of 0.1,0.15,0.2,0.25
Harrizon [31]

Answer:1.2

Step-by-step explanation:each term goes up by .05

8 0
3 years ago
Need the answer please and with work.
Allisa [31]
2a + 69 = the correct answer your welcome
7 0
3 years ago
A second-order linear differential equation for y(t) is said to be homogeneous if... every term involve either y or its derivati
swat32

Answer: Hello!

A second order differential equation has the next shape:

y''(t) + p(t)y'(t) + q(t)y(t) = g(t)

where p(t), q(t) and g(t) are functions of t, that can be constant numbers for example.

And is called homogeneus when g(t) = 0, so you have:

y''(t) + p(t)y'(t) + q(t)y(t) = 0

Then a second order differential equation is homogeneus ef every term involve either y or the derivatives of y.

4 0
3 years ago
I really need help will you please help me?
Marrrta [24]

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Step-by-step explanation:

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+12. +12

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-1/4y -1/4y

2y/2=8/2

y=4

5 0
3 years ago
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