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2 years ago

X/4<20.5 Solve for x example of type of answer: 12≥x

Mathematics

2 answers:

Musya8 [376]2 years ago

6 0

Solve for x by simplifying both sides of the inequality, then isolating the variable.
Inequality Form:

x<82

Katen [24]2 years ago

5 0

Answer: x<82

Step-by-step explanation:

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you are taking a math course in which there will be four tests, each worth 100 points. you have scores of 89, 93, and 98 on

sergij07 [2.7K]

89+93+98 = 280

360 - 280 = 80 marks is needed for the last test

8 0

2 years ago

Which one is it????<br> Will mark brainleist

katrin [286]

Answer:

15-3r

Step-by-step explanation:

A expression cannot have a equal sign only = + or -

If you have questions feel free to ask me! :)

7 0

2 years ago

If (x − 2)^2=49, then x could be ?

Ket [755]

$(x - 2)^2=49\\ \\ x^2-4x +4 -49=0\\ \\x^2-4x -45 = 0\\ \\\Delta = b^{2}-4ac = (-4)^{2}-4*1* (-45)= 16+180=196 \\ \\x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{4-\sqrt{196}}{2}=\frac{4-14}{2}=\frac{-10}{2}=-5 \\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{4+\sqrt{196}}{2}=\frac{4+14}{2}=\frac{18}{2}=9 \\ \\Answer : \ x=-5 \ or \ x= 9$

8 0

3 years ago

Read 2 more answers

3. Consider the function y = x^2 + 4x – 4.

jeka57 [31]

Answer:

a) (-2,-8)

b) not sure :(

c) (0,-4)

Step-by-step explanation:

To find the vertex rewrite in vertex form and use this form to find the vertex (h,k). To find the y-intercept, substitute in 0 for x and solve for y.

6 0

2 years ago

A circle is centered at 7,8 and has a radius of 11 what is the equation?

denis-greek [22]

SchwarzschildRadius here:

So,

The equation for a circle is:

$(x-h)^2+(y-k)^2=r^2$

Where the center of the circle is (h,k), and the radius of the circle is r.

Substituting 7,8 for (h,k) and 11 for r in the equation gives us:

$(x-7)^2+(y-8)^2=11^2$

That would be standard form.

Hope this helps!

7 0

2 years ago

Read 2 more answers