All categories

3 years ago

I need help on Part B

Mathematics

1 answer:

kirill [66]3 years ago

4 0

Since 90 divided by 5 equals 15 and if u multiply 15 by 4 equals 60. So at the rate that she's working it's gonna take her 4 hours to make $60.

You might be interested in

5x-2=3x+8 must find what X is equal to

serious [3.7K]

I had homework on this today lol

First, add 2 to both sides. It would then be 5x = 3x + 10. Then subtract 3x from both sides and you would end up with 2x = 10. Divide 2x by 2 and the 10 by 2. The answer is x = 5.

6 0

3 years ago

Read 2 more answers

Sarawong had some candy to give to his four children. He first took nine pieces for himself and then evenly divided the rest amo

svet-max [94.6K]

9+3+3+3=21 or you could do 4*3+9

5 0

3 years ago

Read 2 more answers

Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from

Lapatulllka [165]

<h2>The area of a triangle is =54 square units</h2><h2>The perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$ </h2>

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

$x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and y_3=8$

The area of a triangle is= $\frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)]$

= $|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|$

= $|-54|$ = 54 square units

The length of AC = $\sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}$

= $\sqrt{(2-12)^{2} +(1-8)^2}$

= $\sqrt{149}$ units

Let the perpendicular distance from B to AC be = x

According To Problem

$\frac{1}{2} \times x \times \sqrt{149} = 54$

⇔ $x =\frac{108}{\sqrt{149} }$ units

Therefore the perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$

5 0

3 years ago

Choose one of the factors of x3 − 1331.

Dmitry [639]

Answer A) x-11
Hope this helps!

3 0

3 years ago

Read 2 more answers

Answer asap please will mark as brainlist

Leona [35]

Answer:

Exact Form:

√ 30

Decimal Form:

5.47722557 …

Step-by-step explanation: i would go with D

6 0

3 years ago