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3 years ago

Please Help!

Mathematics

2 answers:

Ann [662]3 years ago

6 0

There are thirty different express meals possible

vfiekz [6]3 years ago

3 0

The answer is 30 hope i helped :)

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ABC is an isosceles triangle with AB=BC ACD is a straight line work out the size of BCD

rusak2 [61]

Answer:

Triangle ABC is isosceles, with AC = BC. Angle ACD= 620 BCD is a straight line. 180-118=62 62:2-31 x= 31.

Step-by-step explanation:

plz mark as brainiest

hope it helps

5 0

3 years ago

Which of the following is an extraneous solution of (45-3x)^1/2=x-9?

Iteru [2.4K]

Answer:

C. x =3

Step-by-step explanation:

Extraneous solution is that root of a transformed equation that doesn't satisfy the equation in it's original form because it was excluded from the domain of the original equation.

Let's solve the equation first

$\sqrt{45-3x} = x-9\\Taking\ square\ on\ both\ sides\\{(\sqrt{45-3x})}^2 = {(x-9)}^2\\45-3x = x^2-18x+81\\0 = x^2-18x+81-45+3x\\x^2-15x+36 = 0\\x^2-12x-3x+36 = 0\\x(x-12)-3(x-12) = 0\\(x-3)(x-12)\\x-3 = 0\\=> x =3\\x-12 = 0\\x = 12\\We\ will\ check\ the\ solutions\ one\ by\ one\\So,\\for\ x=3\\\sqrt{45-3(3)} = 3-9\\\sqrt{45-9} = -6\\\sqrt{36}= -6\\6\neq -6\\For x=12\\\sqrt{45-3(12)} = 12-9\\\sqrt{45-36} = 6\\\sqrt{36}= 6\\6=6$

Hence, we can conclude that x=3 is an extraneous solution of the equation ..

3 0

3 years ago

NEED HELP ESTIMATING!!

storchak [24]

kale= 1 oz

carrots=4 oz

potatoes= 4 oz

beets=2 oz

4 0

3 years ago

gde Sta manut Stree and Lincoln Set orm a right triangle with a trafic light at each intersection. The distance between the traf

earnstyle [38]

The diagram is of a right triangle with

Hypotenuse = 233

One leg of the triangle = 105

Another Leg = <em>we have to find</em>

<em />

Pythagorean Theorem can be written as:

$\text{Leg}^2+\text{AnotherLeg}^2=\text{Hypotenuse}^2$

Thus, we can write:

$\begin{gathered} 105^2+\text{AnotherLeg}^2=233^2 \\ \text{AnotherLeg}^2=233^2-105^2 \\ \text{AnotherLeg}^2=43264 \\ \text{AnotherLeg}=\sqrt[]{43264} \\ \text{AnotherLeg}=208\text{ ft} \end{gathered}$

Thus,

The distance between the traffic lights on Walnut Street is:

208 feet

4 0

1 year ago

Maye is ⅔ of Laurel's age plus 12 years. Maye is 28 years old. Which equation can be used to find Laurel's age, a?

nexus9112 [7]

Answer:

your answer is b 2/3a +12=28

8 0

3 years ago