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2 years ago

12

a dvd player remote control costs 266 a college student has 813 in her savings account how much will she have left in her saving

s accounts after she buys the dvd player

1 answer:

defon2 years ago

5 0

Answer:

547

Step-by-step explanation:

Just subtract 813 - 266.

pls mark me as brainiest

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Please Help!!!!!<br><br> Which method can you use to prove these triangles congruent?

Trava [24]

Answer: The HL Theorem.

Step-by-step explanation: We are given that the triangles have a congruent 90 degree angle and two congruent sides. This would indicate towards SAS but in this case, that doesn't work because the angle is not in between the two congruent sides. We know that the triangles are right, and that their hypotenuses are congruent and that one leg is congruent. Thus, the answer must be HL (hypotenuse & leg).

6 0

2 years ago

Which is the measure of XBA if ray BA bisects XBY, which measures 86 grades?

Gwar [14]

Answer:

∠XBA=43°

Step-by-step explanation:

we know that

If ray BA bisect angle ∠XBY

then

∠XBA=∠XBY/2

we have

∠XBY=86°

substitute

∠XBA=86°/2=43°

6 0

3 years ago

Suppose that the area between a pair of concentric circles is 49pi. Find the length of a chord in the larger circle that is tang

Lapatulllka [165]

Answer:

14 units

Step-by-step explanation:

We are given that the area between two concentric circles is $49\pi$

We have to find the length of chord in the larger circle that is tangent to the smaller circle.

Let $r_1,r_2$ be the radius of two circles.

$r_1$ be the radius of small circle and $r_2$ be the radius of large circle

We know that area pf circle= $\pi r^2$

Area of large circle = $\pi r^2_2$

Area of small circle = $\pi r^2_1$

Area between two circles = $49\pi$

Area of large circle -Area of small circle= $49\pi$

$\pi r^2_2-\pi r^2_1=49\pi$

$\pi(r^2_2-r^2_1)=49$

By pythagorus theorem

$AD^2=OA^2-OD^2$

$AD^2=r^2_2-r^2_1$

$AD=49$

$AD=\sqrt{49}=7$

Length of chord= $2\cdot AD$

Hence, the length of chord of the larger circle = $2\cdot7=14$ units

7 0

2 years ago

Read 2 more answers

The area of a rectangle is 4y + 10.

galben [10]

By definition, the area of a rectangle is given by:
$A = (w) * (l)
$
Where,
w: width
l: long
We then have the following area:
$A = 4y + 10
$
Factoring the area we have:
$A = 2 (2y + 5)
$
Therefore, according to the definition, two possible dimensions of the rectangle are:
$w = 2

l = 2y + 5$
Answer:
The area of the rectangle in factored form is:
$A = 2 (2y + 5)
$
One possible set of dimensions for this rectangle is:
$w = 2

l = 2y + 5$

6 0

3 years ago

Lola needs to sign 96 invitations. Using a stopwatch that measures time to tenths of a second, it takes Lola 5.3 seconds to sign

andrew11 [14]

Answer:

$8.48\ minutes$

Step-by-step explanation:

we know that

it takes Lola $5.3$ seconds to sign her full name

so by proportion

Find how many seconds take Lola to sign $96$ invitations

$\frac{5.3}{1}\frac{seconds}{invitation}=\frac{x}{96}\frac{seconds}{invitations} \\ \\ x=96*5.3\\ \\x= 508.8\ seconds$

Convert seconds to minutes

Remember that

$1\ minute=60\ seconds$

so

$508.8\ seconds=508.8/60=8.48\ minutes$

5 0

3 years ago

Read 2 more answers