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3 years ago

Solve using subsititution. -9x-10y=-10 y=10

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

ok its (-10,10)

Step-by-step explanation:

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Please help me. I want to get a on this assignment.

Alona [7]

The following that will have no solution is B. It’s B because the final equation is 0 = -5. Which is no solution.

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3 years ago

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The length of a rectangle is 7 meters more than four times its width if the area of the rectangle is 650 square meters, find the

mrs_skeptik [129]

Let the width be x.
Width = x
Length = 4x + 7

The area is 650 m²

x(4x + 7) = 650
4x² + 7x - 650 = 0

Using quadratic formula:
$x = \dfrac{-b \pm \sqrt{b^2 - 4ac} }{2a}$

a = 4, b = 7, c = -650

$x = \dfrac{-7 \pm \sqrt{7^2 - 4(4)(-650} }{2(4)}$

$x = 11.9 \ or\ x = -13.7 \text {(rejected, length cannot be negative)}$

Width = 11.9m
Length = 4(11.9) + 7 = 54.6m

Answer: Length = 54.6m and width = 11.9m

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3 years ago

M^5-m^7. probably easier for most but having a brain fart<br><br>

Dennis_Churaev [7]

$\bf m^5-m^7\implies \begin{array}{llll} m^5&(1-m^2)\\\\ &(1^2-m^2)\\\\ &(1-m)(1+m) \end{array} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill m^5(1-m)(1+m)~\hfill$

recall that

1² = 1

1⁴ = 1

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3 years ago

A triangle has angle measurements of 61°, 84°, and 35°. is this triangle isosceles?

ch4aika [34]

Answer: No

Step-by-step explanation:

This is not an isosceles triangle because there are different angle measurements. The rule of an isosceles triangle is that it must always have two equal sides and angles.

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2 years ago

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mario62 [17]

Answer:

5+3(4-2)

5+3x2

5+6

the answer is 11

Step-by-step explanation:

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4 years ago

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