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3 years ago

Alyssa spent $15 at the mall yesterday. She now has $30 left in her purse.

Mathematics

1 answer:

Umnica [9.8K]3 years ago

4 0

She had 45$ before she spent it. 30+15

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Please Help Me I Will Give You The Brain Thing And Extra Points.

Marta_Voda [28]

Y = mx + b
4 = (2)(-3) + b
4 = -6 + b
10 = b

Answer is choice D

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2 years ago

Find the perimeter of a regular heptagon with consecutive vertices at "A" (-2,-5) and "B" (1,-9)

weqwewe [10]

Answer:

Perimeter is 35 units.

Step-by-step explanation:

A heptagon has 7 equal sides.

Given the length of two consecutive vertices, A(-2-5) and B(1,-9).

We can find the length of AB and multiply by 7.

Recall the distance formula;

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of AB is

$|AB|=\sqrt{(-2-1)^2+(-5--9)^2}$

$|AB|=\sqrt{(-3)^2+(4)^2}$

$\Rightarrow |AB|=\sqrt{9+16}$

$\Rightarrow |AB|=\sqrt{25}$

$\Rightarrow |AB|=5\:units$

Therefore the perimeter is $7\times 5=35\:units$ .

7 0

4 years ago

Please answer this in two minutes

inysia [295]

Answer:

x = 5.7 units

Step-by-step explanation:

By applying Sine rule is the triangle XYZ,

$\frac{\text{SinX}}{\text{WY}}=\frac{\text{SinY}}{\text{WX}}=\frac{\text{SinW}}{\text{XY}}$

$\frac{\text{SinX}}{\text{x}}=\frac{\text{SinY}}{\text{y}}=\frac{\text{SinW}}{\text{10}}$

$\frac{\text{Sin33}}{\text{x}}=\frac{\text{SinY}}{\text{y}}=\frac{\text{Sin107}}{\text{10}}$

$\frac{\text{Sin33}}{\text{x}}=\frac{\text{Sin107}}{\text{10}}$

$x=\frac{10\times(\text{Sin33})}{\text{(Sin107)}}$

x = 5.69

x ≈ 5.7 units

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4 years ago

Evaluate 12.3p+11.5r when p=6 and r=7. 12.3(___)+11.5(___) = ___+80.5 = __

Ronch [10]

Answer:

I don't get it

Step-by-step explanation:

you need to clarify so that i can searched it

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3 years ago

"Eighty and fifteen hundredths" in numbers<br>(decimals)

Black_prince [1.1K]

Answer:

80.15

Step-by-step explanation:

Eighty and fifteen hundredths = 80.15

4 0

4 years ago