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2 years ago

Please help me this is urgent

Mathematics

2 answers:

zmey [24]2 years ago

4 0

Answer:

Area is 23 cm²

Step-by-step explanation:

Data:

a = 6 cm

. b = 8 cm

h = 4 cm

Formula for area

A = 1/2 (a+b)h

= 1/2 (6+8)4

= 1/2 (14)4

= 1/2×56 = 23 cm

never [62]2 years ago

3 0

Answer:

28 sq. cm.

Step-by-step explanation:

A = 1/2 (a + b) (h)

A = 1/2 x 14 x 4

A = 28 sq. cm.

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Step-by-step explanation:12 is divided by 2

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3 years ago

A mysterious metal medallion has a mass of 3,088 grams. Water is poured into a graduated glass container with a 10-by-10 cm squa

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3 years ago

Function is a transformation of the parent exponential function

Zina [86]

Answer: B. function h is a reflection and a dilation of function f

Step-by-step explanation:

A reflection gives the mirror image of function.
A function can be reflected about an axis by multiplying by -1.
To reflect function about the x-axis, multiply f(x) by -1 to get -f(x).

Also, dilation provides either vertical or horizontal stretch or compression.

It uses a scale factor k to multiply the function such that new function will be kf(x).

Here, $f(x)=2^x$ and $h(x)= -3\times 2^x$

We can write h(x) as

$h(x)=(-1) \times (3) \times (2^x)=(-1) \times (3) \times f(x)$

So here scale factor =3 and -1 gives it a reflection.

So, the correct statement would be B. function h is a reflection and a dilation of function f.

7 0

4 years ago

Show all work to write the equations of the lines, representing the following conditions, in the form y = mx + b, where m is the

Kobotan [32]

Answer:

Part A) $y=\frac{4}{3}x+\frac{14}{3}$

Part B) $y=-\frac{3}{4}x+\frac{1}{2}$

Step-by-step explanation:

Part A) Passes through (−2, 2) and parallel to 4x − 3y − 7 = 0

we have

$4x-3y-7=0$

Isolate he variable y

$3y=4x-7$

$y=\frac{4}{3}x-\frac{7}{3}$

The slope of the given line is

$m=\frac{4}{3}$

Remember that

If two lines are parallel then their slopes are the same

therefore

The slope of the line parallel to the given line is also

$m=\frac{4}{3}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=\frac{4}{3}$

$point\ (-2,2)$

substitute

$2=\frac{4}{3}(-2)+b$

solve for b

$b=2+\frac{8}{3}$

$b=\frac{14}{3}$

therefore

$y=\frac{4}{3}x+\frac{14}{3}$

Part B) Passes through (−2, 2) and perpendicular to 4x − 3y − 7 = 0

we have

$4x-3y-7=0$

Isolate he variable y

$3y=4x-7$

$y=\frac{4}{3}x-\frac{7}{3}$

The slope of the given line is

$m=\frac{4}{3}$

Remember that

If two lines are perpendicular, then their slopes are opposite reciprocal

therefore

The slope of the line perpendicular to the given line is

$m=-\frac{3}{4}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=-\frac{3}{4}$

$point\ (-2,2)$

substitute

$2=-\frac{3}{4}(-2)+b$

solve for b

$b=2-\frac{3}{2}$

$b=\frac{1}{2}$

therefore

$y=-\frac{3}{4}x+\frac{1}{2}$

3 0

4 years ago

I need help, I don't just need to answer I need to know the steps on how to solve it asap

Likurg_2 [28]

Your goal when solving problems like these are to get V by itself. Meaning, on one side of the equal sign. So first you are to add -2 over to the side with the 4. Then multiple that by 11. To undo the division

3 0

3 years ago