What is the measure of angle abc if arc ac is 130 and arc de is 40

Mathematics

1 answer:

kvv77 [185]3 years ago

3 0

$\left \{ {{y=2} \atop {x=2}} \right. x^{2} x^{2} x^{2} x^{2} x^{2} x^{2}$ Answer:

Step-by-step explanation:

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(HELP ASAP PLEASE!!)

olasank [31]

Answer:

Shirts = $7

Shorts $17

Step-by-step explanation:

Let:

T - shirts

S - shorts

We can make two equations out of this problem:

4T + 3S = $79

7T + 8S = $185

Through substitution we can solve for one of the unknowns. We make one equation to solve for an unknown

$4T+3S=\$79\\\\3S = \$79-4T\\\\S=\dfrac{\$79-4T}{3}$

We use the formula of S and insert it into the other equation:

$7T+8(\dfrac{\$79-4T}{3}) = \$185\\\\7T + \dfrac{\$632-32T}{3}=\$185\\\\\dfrac{\$632-32T}{3}=\$185-7T\\\\\$632-32T=3(\$185-7T)\\\\$632-32T=\$555 - 21T\\\\-32T+21T=\$555-\$632\\\\-11T=-\$77\\\\\dfrac{-11T}{11}=\dfrac{-\$77}{11}\\\\T = \$7$

Thus T-shirts are $7 each.

Now that we know T, we can use it to solve for the other unknown. You can use it on any of the formulas.

$4T+3S=\$79\\\\4(\$7) + 3S = \$79\\\\\$28+3S =\$79\\\\3S=\$79-\$28\\\\3S=\$51\\\\S=\dfrac{\$51}{3}\\\\S = \$17$

We know then that Shorts are $17 each.

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3 years ago

Are similar polygons congruent?

Vilka [71]

Polygons are similar when they have the same number of sides,
their corresponding angles are equal, and their corresponding
sides are all in the same ratio.

When that ratio is ' 1 ', they are also congruent.

That can happen sometimes, but it doesn't always have to happen.

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3 years ago

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A science teacher showed an image of a carpenter bee on a wall. The image is 10 times as large as the actual bee.

Fudgin [204]

PLease state ure question if the bee is on a wall.Whaat size is the bee?

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The measures of three parts of ABC are given in the diagram. What is AC, correct to two decimal places?

miskamm [114]

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