MATHEMATICS HIGH SCHOOL

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Answer 1

Answer:

Answer:

-4 points

Step-by-step explanation:

Since each incorrect answer is worth the same amount of negative points, use the equation below.

3x = -12 DIvide both sides by 3

x = -4 points

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Which is bigger: 3/8 or 0.38. Can you tell me how to work it out?please!
16000 blood donors were registered with a charitable hospital . The number of donors increased at the rate p% every year. If the total number of blood donors becomes 17640 after 2 yearsWhat's the value of p
30,45,x,100; The median is 51
Two of the three sides of a triangle are 20 and 15. Which of the following numbers is not a possible perimeter of the triangle?a. 52b. 57c. 62d. 67 e.72
A function f is depicted in the graph. Find any input values that produce the indicated output. f(x) = -1

Does anyone know the pattern to this? Does anyone also know the slope to it and where the line intersects at the y-axis and the equation of the line?

Answers

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $(y_(2)-y_(1) )/(x_(2)-x_(1) )$

with (x₁, y₁ ) = (1, 3) and (x₂, y₂ ) = (3, 7) ← 2 ordered pairs from the table

m = $(7-3)/(3-1)$ = $(4)/(2)$ = 2

The line crosses the y- axis at (0, 1 ) ← from table

Then c = 1

y = 2x + 1 ← equation of line

sixty people will be attending and needs 60% of the memos to be blue 20% to be red 15% to be green and 5% to be yellow how many green memos do you need to print

Answers

15% as a decimal can be written as 0.15

60 x 0.15 = 9

Therefore 9 green memos must be printed.

The height of a box is 7 inches. Its length is 6 inches more than its width. Find the length if the volume is 280cubic inches.

Answers

h = 7
l = w + 6
V = 280

V = lwh

Plug in what we know:

280 = (w + 6)(w)(7)

Distribute W into the first parenthesis:

280 = (w^2 + 6w)(7)

Distribute 7:

280 = 7w^2 + 42w

Divide 7 to both sides:

40 = w^2 + 6w

Subtract 40 to both sides:

w^2 + 6w - 40 = 0

Factor:

(w - 4)(w + 10) = 0

Therefore, w = 4.

Plug this back into the equation for the length:

l = w + 6

l = 4 + 6

l = 10

$Volume=Length*Width*Height \n 280=(x+6)*x*7 \n 280=7x(x+6) \n 280=7x^(2)+42x \n 0=7x^(2)+42x-280 \n 0=7(x^(2)+6x-40) \n 0=7(x+10)(x-4) \n Since\ we\ can't\ have\ negative\ values,\ x=4 \n Width=4 \n Length=Width+6 \n Length=4+6 \n \boxed{Length=10}$

In rhombus ABCD, AB = 13 and AC = 25. Find the area of the rhombus to the nearest tenth.

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$the\ area\ of\ the\ rhombus=\n=half\ the\ product\ of\ the\ diagonals\ of\ a\ rhombus\n\nA= (1)/(2)\cdot |AB|\cdot |AC|=(1)/(2)\cdot 13\cdot 25= 162.5\ [u^2]$

What two numbers multiply to __ and add up to __?1. Multiply -15 add -2
2. Multiply -32 add -4
3.multiply -14 add -5
4. Multiply -24 add 5

Answers

Arrange the factors of the product so that when added you get the sum:
1. The factors of 15 are 3 and 5 or 1 and 15. You are looking for the pair that is two apart, which are 3 and 5. Because they add up to be negative 2, 5 must be negative, so the two numbers you get are 3 and -5. The rest can be solved similarly:
2. (Out of 1 and 32, 2 and 16, and 4 and 8, only 4 and 8 works) -8+4=-4, -8*4=-32
3. (Out of 1 and 14, and 2 and 7, only 2 and 7 works) -7+2=-5, -7*2=-14
4. (Out of 1 and 24, 2 and 12, 3 and 8, and 4 and 6, only 3 and 8 works) -3+8=5, -3*8=-24.

Answer:

-3 + 8 = 5, -3 · 8 = -24

Hope this helps!!!

Step-by-step explanation:

Which function is NOT linear? ☆y=x²+2 ☆y=3x ☆ y = 3x/4 ☆ x - y = 1

Answers

Answer:

y = x^2 +2

Step-by-step explanation:

x^2 is parabolic not linear

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