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3 years ago

15x^2-4x-4=15x 2 −4x−4=

Mathematics

1 answer:

luda_lava [24]3 years ago

8 0

Answer:

i think the answer u need is -2-4x

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M 30 degrees 9x-10 10x+10

ivann1987 [24]

Answer:

m∠W = 80°

Step-by-step explanation:

To find m∠W, remember that:

One exterior angle of a triangle is equal to the sum of the other two interior angles.

Now apply this information.

Notice that point U has an exterior angle. It will be equivalent to the sum of m∠V and m∠W, or in algebraic from: U = m∠V + m∠W

Substitute the information we know.

U = m∠V + m∠W

10x + 10 = 30 + 9x - 10 Simplify the right side's like terms.

10x + 10 = 20 + 9x Isolate "x"

10x - 9x + 10 = 20 + 9x - 9x Subtract 9x from both sides

10x - 9x + 10 = 20 9x cancels out on the right side

x + 10 = 20 Simplified left side, 10x - 9x = x

x + 10 - 10 = 20 - 10 Subtract 10 from both sides

x = 20 - 10 "x" is isolated. Simplify right side.

x = 10 Solved for "x"

To find m∠W, substitute the value of "x" into the equation of its angle.

m∠W = 9x - 10

m∠W = 9(10) - 10 Multiply 9 and 10, then subtract 10 from the product.

m∠W = 80

Write with the units, degrees symbol °

Therefore the measure of ∠W is 80°.

3 0

4 years ago

Katrina uses 4.125 yards of fabric for each curtain panel she makes how many yards will show me if she makes 14 panels

arlik [135]

Answer:

57.75 yards yard will she makes 14 panels.

Step-by-step explanation:

Proportion states that the two ratios or fractions are equal.

As per the statement: Katrina uses 4.125 yards of fabric for each curtain panel she makes.

To find the how many yard will she makes 14 panels.

By proportion definition,

$\frac{4.125}{1} =\frac{x}{14}$

By cross multiply we have;

$4.125 \times 14 = x$

Simplify:

x = 57.75 yards.

therefore, 57.75 yards yard will she makes 14 panels.

4 0

3 years ago

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Simplify: 3(3a + 4b) can u please give me the answer and tell me how u got it :)

Ilya [14]

Answer:

Answer 21ab

Step-by-step explanation:

First you do 3 times 3a which you get 9a then to 3 times 4b and you get 12b. So 12b plus 9a equals 21ab

3 0

3 years ago

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I need help on this how do i do this

kap26 [50]

Answer: 4311/9900 = 0.4354 4936/990 = 4.985 530/900 = 0.58 674/990 = 0.680 8099/990 = 8.180 explanation: divide the numbers and select the answers.

7 0

3 years ago

Write in slope intercept form: (-5,-11) and (-2,1)

slavikrds [6]

Answer:

Step-by-step explanation:

The equation to find the intercept is m = y2 - y2 / x2 - x1

If we plus in the values the equation would be 1 + 11 / -2 - 5

Solve form there and you get: m = 4

Therefore the answer is 4.

8 0

4 years ago

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