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2 years ago

Just need help with the last one plsss :)))

Mathematics

1 answer:

Rzqust [24]2 years ago

3 0

Triangle QTR=~ triangle SRT

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Since 2005, the amount of money spent at restaurants in a certain country has increased at a rate of 8% each year, In 2005, abou

Kryger [21]

Answer:

This is an exponential growth problem.

The growth rate is 4% (0.04).

The time is 10 years (10 years from 2005 to 2015)

A = P(1+i)t

A = amount spent in 2015

P = amount spent in 2005

i = interest rate expressed as a decimal

t = # years

A = 500(1.04)10

A = 500(1.480244)

A = 740.122 ==> 740 billion

Step-by-step explanation:

3 0

2 years ago

Rectangle with side lengths of 1/2 ft. and 3/4 ft. What is the area and perimeter?

deff fn [24]

Perimeter: all the sides added together, so that would be 1/2+1/2+3/4+3/4, which is 2 and a half feet

Area: the two side lengths multiplied, so 1/2*3/4, which is 3/8 feet squared

4 0

2 years ago

What's (-5y-10x=4) + (-3y+10x=-15) ?

il63 [147K]

Answer:

-15

Step-by-step explanation:

10x-3y= -15

8 0

2 years ago

Read 2 more answers

Find the equation of a line that passes through left parenthesis 1 comma 6 right parenthesis(1,6) and is parallel to the graph o

max2010maxim [7]

Answer:

The equation for the new line in slope-intercept form is:

$y=4x+2$

Step-by-step explanation:

Since they give us an equation in slope-intercept form "y=4x+5", it is easy to extract the slope the new parallel line to this should have : "4" (same slope as the reference line)

We are also given a point the new line should go through : "(1, 6)"

So we can use the "point-slope" form of a line to find the equation of this new line:

$y-y_0=m(x=x_0)\\y=m(x-x_0)+y_0$

which for our case is:

$y=m(x-x_0)+y_0\\y=4\,(x-1)+6\\y=4x-4+6\\y=4x+2$

6 0

2 years ago

ABCD is a trapezoid with AD = 5 ft, DC = 7 ft, and AB = 15 ft. Find the area of the trapezoid. 30 ft2 33 ft2 44 ft2 55 ft2

Nataly_w [17]

Answer: 33 ft².

Step-by-step explanation:

1. As you can see in the figure attached, the trapezoid is formed by a rectangle and two equal right triangles. The base of each triangle is 4 feet and you know the lenght of the hypotenuse AD, therefore, you can calculate the height by applying the Pythagorean Theorem:

$h=\sqrt{(5ft)^{2}-(4ft)^{2}}=3ft$

2. Now, you can calculate the area with the following formula:

$A=(\frac{B+b}{2})h$

Where B is the longer base, b is the shorter base and h is the height.

Then:

$A=(\frac{15ft+7ft}{2})(3ft)=33ft^{2}$

8 0

3 years ago

Read 2 more answers