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3 years ago

Pls help me with this

Mathematics

2 answers:

Alexxx [7]3 years ago

4 0

Answer:22. Plug in all the options and see if they are equal

Step-by-step explanation:

nekit [7.7K]3 years ago

4 0

Step-by-step explanation:

Numeber 22 is D or -10

Explication

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What is the answer 3 3/10- 2 23/100

guapka [62]

Answer:

1 7/100

Step-by-step explanation:

8 0

3 years ago

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Translate the sentence into an inequality The product of b and 3 is at least -22

Sedaia [141]

Answer:

$3b \geq -22$

Step-by-step explanation:

Product of of 3 and b is 3b

At least means greater than or equal too.

$3b \geq -22$

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3 years ago

A parabola can be drawn given a focus of

Volgvan

Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

Directrix of the parabola is $y=10$ .

Let $(x,y)$ be any point on the parabola. Then, from the definition of a parabola,

Distance of $(x,y)$ from focus = Distance of $(x,y)$ from directrix.

Therefore,

$\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|$

Squaring both sides, we get

$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$

Hence, the equation of the parabola is $y=-\frac{1}{4}(x-2)^{2}+9$ .

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3 years ago

Write the decimal number that has the specified place values.

Delicious77 [7]

Answer:

253.90

Step-by-step explanation:

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3 years ago

If points A, B, and Clie on a line, then AB + BC = AC. always sometimes never

nadya68 [22]

Answer:

Always

Step-by-step explanation:

we know that

If points A, B, and C lie on a line, the the sum of the length of segment AB plus the length of the segment BC is always the length of segment AC

AC=AB+BC

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3 years ago