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3 years ago

Write an equation for the problem, then solve it.

Mathematics

1 answer:

Mamont248 [21]3 years ago

6 0

So first Pedro gets $42

then Tessa gets x dollars mowing.

And it says Pedro gets 3 times as much as Tessa

therefore the equation shall be>>>>>> x∙3=$42

Now we do: 42 / 3 = 14

X= 14

Hope u understand. Stay safe QT! (Also sorry it took me a while i put effort in trying to explain It, in the best way possible)

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F(x) = x + 3 g(x) = 2x2 - 4 Find (f ·g)(x).

umka21 [38]

Answer:

2x^3+6x^2-4x-12

Step-by-step explanation:

3 0

3 years ago

If an object is propelled upward from a height of 72 feet at an initial velocity of 90 feet per second, then its height h after

kifflom [539]

Answer:

6.34 seconds.

Step-by-step explanation:

The object will hit the ground when h = 0.

-16t^2 + 90t + 72 = 0

8t^2 - 45t - 36 = 0

We can then use the quadratic formula to solve.

[please ignore the A-hat; that is a bug]

$\frac{45±\sqrt{45^2 - 4 * 8 * -36} }{2 * 8}$

= $\frac{45±\sqrt{2025 + 1152} }{16}$

= $\frac{45±\sqrt{3177} }{16}$

= $\frac{45±56.36488268}{16}$

(45 - 56.36488268) / 16 = -0.7103051678

(45 + 56.36488268) / 16 = 6.335305168

Since the time cannot be negative, the object will hit the ground after about 6.34 seconds.

Hope this helps!

4 0

3 years ago

the base of a right prism is an equilateral triangle each of whose sides measures 4cm.the altitude of the prism measures 5cm.Fin

o-na [289]

Answer:

$V=34.64\ cm^3$

Step-by-step explanation:

Given that,

The side of an equilateral prism = 4 cm

The altitude of the prism = 5 cm

We need to find the volume of the prism. The formula for the volume of a prism is as follows :

$V=A\times h$

Where

A is the area of equilateral triangle, $A=\dfrac{\sqrt3}{4}a^2$

So,

$V=\dfrac{\sqrt3}{4}a^2\times h\\\\V=\dfrac{\sqrt3}{4}\times 4^2\times 5\\\\V=34.64\ cm^3$

So, the volume of the prism is equal to $34.64\ cm^3$ .

6 0

3 years ago

Los Angeles is about 385 miles from San Francisco. How far apart would the cities be on a map with a scale of 1 in. = 15 mi? If

Lisa [10]

Distance between Los Angeles and San Francisco = 385 miles

So , if we have to locate 385 miles on the map taking the scale

1 inches = 15 miles

1 miles = $\frac{1 }{15}$ inches

so, 385 miles = $\frac{1}{15}\times 385=25.666....$

→→385 miles = 25.67 (approx)

Option (B) is correct.

4 0

4 years ago

Read 2 more answers

A new one-year membership at RecPlex costs $160. a registration fee of $28 is paid front, and the rest is paid monthly. How much

stealth61 [152]

Answer:

$3480

Step-by-step explanation:

Multiply $160 and $28 Hope it helps!!! Have a nice day or night!!!

4 0

3 years ago