1 year ago

Solve the quadratic equation 2x^2 + 6 = 8x by graphing.

Mathematics

1 answer:

Semmy [17]1 year ago

3 0

Answer:

D is the right ans after solving eqn we get two value of x and they are 1 and 3

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Sarah is 25 years older than her son gavin in 10 years sarah will be twice gavin's age how old was sarah and gavin now

Alla [95]

Sarah is 40 and gavin is 15

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2 years ago

Given the function rule f(x) = x^2 - 5x + 1, what is the output of f(-3)?

mojhsa [17]

f(x) = x² - 5x + 1

f(-3) = (-3)² - 5(-3) + 1

f(-3) = 25

--------------------------------------------------
Answer: f(-3) = 25 (Answer C)
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3 years ago

Find the lateral area of the regular prism with height h, if the base of the prism is: Equilateral triangle with the side 4 cm a

Shtirlitz [24]

Equilateral triangle with the side 4 cm and h=2.5 cm

In equilateral triangle all sides are equal

so all sides are equal in the base of the prism

lateral area of the prism = Perimeter of the base * height

Perimeter of the base equilateral triangle = side + side + side

lateral area of the prism =(side + side + side) * height

= (4+4+4) * 2.5

= $30 cm^2$

lateral area of the prism = $30 cm^2$

6 0

2 years ago

Read 2 more answers

Simplify: -3 1/2(-12 1/4)

pshichka [43]

Answer:

$26 \frac{1}{4}$

Step-by-step explanation:

First we turn them into improper fractions

$-\frac{7}{2}(-\frac{45}{4})$

then we multiply it

$-\frac{7}{2}*-\frac{45}{4}=\frac{315}{12}=26\frac{1}{4}$

6 0

3 years ago

Show what i% 18 out of 25

boyakko [2]

i 18
---- = ----
100 25

25i 1800
----- = -------
25 25

i = 72

72%

6 0

3 years ago