Ask question

Ask question

All categories

2 years ago

15

What is not true about unit rates?

1 answer:

nydimaria [60]2 years ago

6 0

Answer:

One thing that is not true would be:

There isn't a 1 in a unit rate

Step-by-step explanation:

There is actually a 1 (specifically in the denominator) because the word unit means 1

Hope this helps :)

You might be interested in

WILL GIVE YOU BRAINLIEST

S_A_V [24]

Answer:

AB = 20 tan55°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan55° = $\frac{opposite}{adjacent}$ = $\frac{AB}{BC}$ = $\frac{AB}{20}$ ( multiply both sides by 20 )

20 tan55° = AB

8 0

2 years ago

A carpenter wants to build a rectangular box with square sides in which to put round things. the material for the bottom costs $

alexira [117]

Answer: $1.627\times 1.627\times 1.88\ ft^3$

Step-by-step explanation:

Given

Suppose side face have a dimension of l\times l

and width of h

volume $V=l^2\cdot h$

$h=\frac{V}{l^2}$

volume $V=5 ft^3$

Area of side wall is $A_s=l^2$

Area of top Wall $A_t=l\times h$

Area of bottom $A_b=l\times h$

Cost of bottom wall $c_b=20\times l\times h=20lh$

Cost of top wall $c_t=50\times l\times h=50lh$

Cost of side walls $c_s=4\times l^2\times 10=40l^2$

total cost $C=c_s+c_t+c_b=20lh+50lh+40l^2$

$C=70lh+40l^2$

$C=70\times l\times \frac{5}{l^2}+40l^2$

differentiate C w.r.t l to get minima or maxima

$\frac{\mathrm{d} C}{\mathrm{d} l}=0$

$-\frac{350}{l}+80l^2=0$

$l^3=\frac{350}{80}$

$l=1.627 ft$

$h=\frac{5}{2.648}$

$h=1.88 ft$

Dimension of Box is $1.627\times 1.627\times 1.88\ ft^3$

5 0

3 years ago

I have two proof questions and I don't really know how to do them.

goldfiish [28.3K]

$\angle1\cong\angle2$ corresponding angles, therefore

m∠1 = m∠2 → m∠2 = 130°

$\angle2\cong\angle3$ vertical angles, therefore

m∠2 = m∠3 → m∠3 = 130°

If ∠1 and ∠2 are complementary, then m∠1 + m∠2 = 90°.

If ∠2 and ∠3 are complementary, then m∠2 + m∠3 = 90°

Therfore

$m\angle1 + m\angle2 = m\angle2 + m\angle3\qquad|\text{subtract}\ m\angle2\ \text{ from both sides}\\\\m\angle1 = m\angle3\to\angle1\cong\angle3$

5 0

2 years ago

The prism below is made of cubes which measure 1/3 of an inch on one side. What is the volume?

Leto [7]

Answer:

the answer is A. 10/8 cubic in.

Step-by-step explanation:

V = LWH

length is 2 (1/3 in)

width is 3 (1/3 in)

height is 5 (1/3 in)

V = 2/3 in * 3/3 in * 5/3 in.

V = 10/9 cubic in.

3 0

3 years ago

Read 2 more answers

If 2 sides of a triangle measure 6 and 16 find the range for the 3rd side

tangare [24]

Step-by-step explanation:

Range if third side is in between 10-22

Reason:

<em>For </em><em>the </em><em>lowest </em><em>value </em><em>of </em><em>third </em><em>side </em><em>1</em><em>6</em><em>-</em><em>6</em><em>=</em><em> </em><em>1</em><em>0</em><em> </em>

<em>For </em><em>the </em><em>highest</em><em> </em><em>value</em><em> </em><em>if </em><em>third</em><em> </em><em>side </em><em>1</em><em>6</em><em>+</em><em>6</em><em>=</em><em> </em><em>2</em><em>2</em>

<em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em><em>⚡</em>

8 0

2 years ago