All categories

3 years ago

Identify the exponent that would follow (3 • 4) to make the equation true. (3^2)(4^2) = (3 • 4)

Mathematics

1 answer:

Ann [662]3 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

The price of a computer was decreased by 10% to £504. What was the price before the decrease

katovenus [111]

Answer:

Step-by-step explanation:

100-10 : 100

90 : 100

504 : x

x=540x100/90

x=50400/90

x=560

7 0

3 years ago

From a point A that is 8.20 m above level ground, the angle of elevation of the top of a building s 31 deg 20 min and the angle

Mariulka [41]

Answer:

30.11 meters ( approx )

Step-by-step explanation:

Let x be the distance of a point P ( lies on the building ) from the top of the building such that AP is perpendicular to the building and y be the distance of the building from point A, ( shown in the below diagram )

Given,

Point A is 8.20 m above level ground,

So, the height of the building = ( x + 8.20 ) meters,

Now, 1 degree = 60 minutes,

⇒ $1\text{ minute } =\frac{1}{60}\text{ degree }$

$20\text{ minutes }=\frac{20}{60}=\frac{1}{3}\text{ degree}$

$50\text{ minutes }=\frac{50}{60}=\frac{5}{6}\text{ degree}$

By the below diagram,

$tan ( 12^{\circ} 50') = \frac{8.20}{y}$

$tan(12+\frac{5}{6})^{\circ}=\frac{8.20}{y}$

$tan (\frac{77}{6})^{\circ}=\frac{8.20}{y}$

$\implies y=\frac{8.20}{tan (\frac{77}{6})^{\circ}}$

Now, again by the below diagram,

$tan (31^{\circ}20')=\frac{x}{y}$

$tan(31+\frac{1}{3})=\frac{x}{y}$

$\implies x=y\times tan(\frac{94}{3})=\frac{8.20}{tan (\frac{77}{6})^{\circ}}\times tan(\frac{94}{3})^{\circ}=21.9142943216\approx 21.91$

Hence, the height of the building = x + 8.20 = 30.11 meters (approx)

8 0

3 years ago

Question 1 (10 points)

Irina18 [472]

Answer:

Q1 d, Q2 c, Q3 d

Step-by-step explanation:

g(x)=-3x+1

g(x)=16 means that

-3x+1=16 subtract 1 from both sides

-3x=16-1 combine like terms and divide both sides by -3

x=-15/3=-5

g(x)=3x²+4x-1

g(2) means that x=2 so substitute

g(2)=3*2²+4*2-1=12+8-1=19

domain are the x values

range are the y values

8 0

3 years ago

Mary can make a quilt in 3 days and Eva can make

Rina8888 [55]

Answer: in explanation

Step-by-step explanation

Sandi can perform 1/9 of the task in a day

Eva can perform 1/5 of the task in a day

Working together, they can perform

1/9 + 1/5 of the task per day

= 5/45 + 9/45 = 14/45 of the task in a day

or 45/14 days in the task = 3.2 days

It would take about 3.2 days to complete the task working togethe

7 0

3 years ago

Which expression is equivalent to 5x+10y-15

deff fn [24]

Answer: 5x+25y-50

Step-by-step explanation: Hope this help :D

5(x+5y-10)

=(5)(x+5y-10)

=(5)(x)+(5)(5y)+(5)(-10)

=5x+25y-50

4 0

3 years ago

Read 2 more answers