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3 years ago

10

ANSWER ASAP I WILL GIVE BRAINIEST

2 answers:

SashulF [63]3 years ago

6 0

Answer:

150/4^2

Step-by-step explanation:

enyata [817]3 years ago

4 0

Answer:

We need to determine the expression that would represent the area of the scale drawing described in the problem. Two rectangular room which has a scale factor of 4 and this can be written as Area SR (area for small rectangle) / Area LR (area of the large rectangle).

We need also to take note that the actual area of the rectangular room is 150 ft². We have it like this:

Area LR / Area SR = 4:1

Area LR / 150 = 4

Area LR = 150*4

Area LR = 600 ft²

This is the area of the larger rectangular room "600 ft²".

Hope this helped :)

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55. (a) If alpha and beta are the roots of the equation xsquare+ px+q=0 and beta>alpha find the square of the

densk [106]

Answer:

√(p²-4q)

Step-by-step explanation:

Using the Quadratic Formula, we can say that

x = ( -p ± √(p²-4(1)(q))) / 2(1) with the 1 representing the coefficient of x². Simplifying, we get

x = ( -p ± √(p²-4q)) / 2

The roots of the function are therefore at

x = ( -p + √(p²-4q)) / 2 and x = ( -p - √(p²-4q)) / 2. The difference of the roots is thus

( -p + √(p²-4q)) / 2 - ( ( -p - √(p²-4q)) / 2)

= 0 + 2 √(p²-4q)/2

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7 0

2 years ago

Use the distributive property to write the expression as a product<br> 10+70x

grigory [225]

Answer:

$10(1+7x)$

Step-by-step explanation:

Just factored out the 10.

4 0

3 years ago

Kira has $40 to spend and used $20 to buy a new pair of jeans. Which integer best represents the situation of spending $20?

pishuonlain [190]

-20 because 40 is a positive and spent is negative

5 0

2 years ago

The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If

makvit [3.9K]

Answer: speed is 540 km/h

Step-by-step explanation: Lets mark speed as v.

Because distenace is same, you can mark 6 h · 900 km/h = 10 h · v

and v = 5400 km / 10 h = 540 km/h.

Or using inverse proportions : 10 h / 6 h = v / 900 km/h .

Before multiplying you turn lastproportion around :

10 h / 6 h = 600 km/ h / v ,which gives 10 v = 6 · 900 km/h

and result is same

3 0

2 years ago

Question : In the given figure , ∆ APB and ∆ AQC are equilateral triangles. Prove that PC = BQ.

lorasvet [3.4K]

Answer:

See Below.

Step-by-step explanation:

We are given that ΔAPB and ΔAQC are equilateral triangles.

And we want to prove that PC = BQ.

Since ΔAPB and ΔAQC are equilateral triangles, this means that:

$PA\cong AB\cong BP\text{ and } QA\cong AC\cong CQ$

Likewise:

$\angle P\cong \angle PAB\cong \angle ABP\cong Q\cong \angle QAC\cong\angle ACQ$

Since they all measure 60°.

Note that ∠PAC is the addition of the angles ∠PAB and ∠BAC. So:

$m\angle PAC=m\angle PAB+m\angle BAC$

Likewise:

$m\angle QAB=m\angle QAC+m\angle BAC$

Since ∠QAC ≅ ∠PAB:

$m\angle PAC=m\angle QAC+m\angle BAC$

And by substitution:

$m\angle PAC=m\angle QAB$

Thus:

$\angle PAC\cong \angle QAB$

Then by SAS Congruence:

$\Delta PAC\cong \Delta BAQ$

And by CPCTC:

$PC\cong BQ$

5 0

2 years ago

Read 2 more answers