MATHEMATICS HIGH SCHOOL

Solve this inequality.-5x + 7 42
x > 245
x < -175
x > 7
x < -7

Answers

Answer 1
Answer: Hello,

Hard to devine the non marked sign!

Let' s go without than.


-5x+7 ? 42
==>-5x? 42-7
==>-5x ? 35
==>x not ? 35/(-5)
==>x not ? -7

Answer D and the missing signe is

not ? is <
==> ? is >

Very hard to make math !!!

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What are the x-intercepts of the function f(x) = –2x2 – 3x + 20?(–4, 0) and and (4, 0) (–5, 0) and (2, 0) (–2, 0) and (5, 0)

What is the formula for the volume of a cylinder?

Answers

V=πr2hWhen r=radius and h=height

The probability that a given urine sample analyzed in a pathology lab contains protein is 0.73 (event A). The probability that the urine sample contains the protein albumin is 0.58 (event B). The probability that a sample contains protein, given that albumin is detected, is 1. Which statement is true?
a. Events A and B are dependent because P(A|B) =P(A).
b. Events A and B are dependent because P(A| B) ≠ P(B).
c. Events A and B are dependent because P(A|B) = P(A) + P(B).
d. Events A and B are dependent because P(A| B)≠ P(A).
e.Events A and B are dependent because P(A|B) = P(A).

Answers

The right answer for the question that is being asked and shown above is that: "e.Events A and B are dependent because P(A|B) = P(A)." The probability that a sample contains protein, given that albumin is detected, is 1. The statement that is true is this events A and B are dependent because P(A|B) = P(A).

Simplify the product using the distributive property. (-4h +2)(3h +7)

Answers

Answer: -12h^2-22h+14

Step-by-step explanation:

According to distributive property under multiplication over addition

We can write a.(b+c)=a.b+a.c

Since, The given expression, (-4h+2)(3h+7)

By applying distribution in first bracket.

we can write, (-4h+2)(3h+7)= -4h(3h+7)+2(3h+7)

Again on applying distribution property,

we get, (-4h+2)(3h+7)= -4h×3h+(-4h)×7+2×3h+2×7

⇒ (-4h+2)(3h+7)= -12h^2-28h+6h+14 = -12h^2-22h+14
-2(2h - 1)(3h + 7)
(-2(2h) - 2(-1))(3h + 7)
(-4h + 2)(3h + 7)
-4h(3h + 7) + 2(3h + 7)
-4h(3h) - 4h(7) + 2(3h) + 2(7)
-12h² - 28h + 6h + 14
-12h² - 22h + 14

What is the midpoint between (4,12) and (8,2)

Answers

the distance between the x values is 4 and the distance between the y values is 10...

divide the distance between the x values and the y values
add 2 to the 4 on x
add 5 to the 2 on y

gives us the midway point of (4, 7)

Choose all the fractions that are in simplest form.4/26
8/21
6/19
9/10
10/22

Answers

4/26 can be simplified by 2. So, this is not the answer.
8/21 cannot be simplified. So, it is one of the answers.
6/19 cannot be simplified. So, it is one of the answers.
9/10 cannot be simplified. So, it is one of the answers.
10/22 can be simplified by 2. So, this is not the answer.

So, the fractions in simplest forms are 8/21, 6/19, and 9/10.

A quadrilateral has angles that measure 56°, 97°, and 136°.What is the measure of the fourth angle?

Answers

Angles of a quadrilateral add up to 360 degrees. Thus;
360-(56+97+136)
=71°
The sum of the interior angles can be represented by:
180(n-2)
180 x 2 = 360
Therefore, the sum of the angles must be 360.

56 + 97 + 136 = 289
360 - 289 = 71°

Hope I helped!
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