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3 years ago

81

Mathematics

1 answer:

Rasek [7]3 years ago

7 0

Answer:

2.6

Step-by-step explanation:

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Trevor spent $27 an now he has no money left.he had what number before his purchase

sdas [7]

Let the money Trevor had before purchase be x.

After his purchase, he has no money left.

So, x - 27 = 0

x = 27.

Hence, Trevor had $27 before his purchase.

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4 years ago

Help rn please!!! Urgent

TEA [102]

Answer:

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3 years ago

Read 2 more answers

What is the value of y? Enter your answer in the box. y = An isosceles triangle with vertices labeled A, B, and C. Side B C is t

masha68 [24]

Answer:

$y = 5$

Step-by-step explanation:

Given:

An isosceles triangle ABC with AB = AC.

∠A = $(4y+10)\°$

∠B = $75\°$

∠C = $(3x)\°$

We know that, for an isosceles triangle, the angles opposite equal sides are also equal to each other.

Therefore, ∠B = ∠C

⇒ $75 = 3x$

⇒ $x=\frac{75}{3}=25$

∴ ∠C = $3\times 25=75$ °

Now, the sum of all the interior angles of a triangle is always 180°.

$\angle A + \angle B + \angle C=180\\(4y+10)+75+75=180\\4y+10+150=180\\4y+160=180\\4y=180-160\\4y=20\\y=\frac{20}{4}=5$

Therefore, the value of 'y' is 5.

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3 years ago

Which of the equations below could be the equation of this parabola?

BARSIC [14]

Parabolas like $y=ax^2$ have the y-axis as their symmetry axis, so options B and D are surely wrong.

Moreover, parabolas like $x=ay^2$ have the x-axis as their symmetry axis. If $a>0$ the parabola is concave rightwards, if $a$ the parabola is concave leftwards.

Since your parabola is concave leftwards, the only feasible option is $x=-2y^2$

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3 years ago

What is 1 3/10 multiplied by 18??

Lelu [443]

I hope this helps you

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3 years ago