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dimulka [17.4K]

2 years ago

8

The tens digit of a certain number is five more than the units digit. The sum of the digits is 9. Find the number. Help! I need

to turn this in in 20 minutes

1 answer:

JulsSmile [24]2 years ago

7 0

The Answer is 27 because 2+7=9 and 7-2=5

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Please help due in 5 minutes !

SpyIntel [72]

The first option is correct

4 0

2 years ago

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A parallelogram cannot be a cross section of a triangular prism

abruzzese [7]

The question presented is not answerable because it just presented a mere statement.

7 0

3 years ago

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On a coordinate plane, two parabolas open up. The solid-line parabola, labeled f of x, goes through (negative 2, 4), has a verte

statuscvo [17]

Answer:

Option 4.

Step-by-step explanation:

The vertex form of a parabola is

$g(x)=a(x-h)^2+k$ ... (1)

where, a is a constant (h,k) is vertex.

The given function is

$f(x)=x^2$

The vertex of the function is (0,0) and it goes through (-2, 4) and (2, 4).

It is given that the vertex of function g(x) is at (5,2).

Substitute h=5 and k=2 in equation.

$g(x)=a(x-5)^2+2$

g(x) is passes through (3, 6).

$6=a(3-5)^2+2$ .... (2)

$6-2=4a$

$4=4a$

Divide both sides by 4.

$a=1$

Substitute a=1 in equation (2).

$g(x)=1(x-5)^2+2$

$g(x)=(x-5)^2+2$

The function g(x) is $g(x)=(x-5)^2+2$ .

Therefor, the correct option is 4.

3 0

2 years ago

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Given f(x) = 3 and g(x) = cos(x). What is lim [F(x) - g(x)]?

Flura [38]

Answer:

4

Step-by-step explanation:

$\lim_{n \to \ -\pi } (f(x) - g(x))\\\\ = \lim_{n \to \ -\pi } (3 - cos x)\\\\ = 3 - cos( - \pi) = 3 - cos(\pi)\\\\ = 3 - (-1) = 3 + 1 = 4$

6 0

2 years ago

3 = -2x + 1 what is the value of x

DerKrebs [107]

Subtract 1 from both sides

3 - 1 = -2x

Simplify 3 -1 to 2

2 = -2x

Divide both sides by -2

-1 = x

Switch sides

<u>x = -1</u>

4 0

3 years ago

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