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2 years ago

Using the matrix solver on your calculator, find the solution to the system of

Mathematics

1 answer:

OleMash [197]2 years ago

7 0

The answer is answer choice D)

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Plz help me asap. Plz help help help

Leya [2.2K]

The answer is 10 because 9x5=45 then you do 45-15=30 then you divide by 3 which is 10.
Your welcome

5 0

2 years ago

lauren is driving to the grocey store.Tye average distance is d,in miles,she travels over t minutes is giving is givin bu the fu

yulyashka [42]

Answer:

Average distance traveled in 15 minutes = 7.5 miles

Step-by-step explanation:

Given function:

$d(t)=0.5t$

where $d$ represents average distance traveled in miles and $t$ represents time in minutes traveled.

To find the average distance traveled in $t=15$ minutes.

Solution:

In order to find the distance traveled in 15 minutes, we will input $t=15$ in the given function.

$d(15)=0.5(15)$

$d(15)=0.5\times 15$

$d(15)=7.5$ miles

Average distance traveled in 15 minutes = 7.5 miles

4 0

3 years ago

A bottle of perfume is spherical with a diameter of 36 mm.

Dafna11 [192]

24.4 mL

By converting mm to cm, we get

1 mm = 1/10 cm

18 mm = 18/10 cm

radius (r) = 1.8 cm

To find the volume,

Volume of sphere = 4/3πr3

= 4/3π(1.8)3

Volume = 24.4 cm3

To find the capacity,

1 cm3 = 1 mL

Capacity = 24.4 mL

7 0

1 year ago

Can someone please help me workout this problem? If the quotient obtained by dividing 8x^4 - 2x^2 + 6x - 7 by 2x+1 is equal to 4

Angelina_Jolie [31]

Answer:

The answer to your question is p = -2 q = -6 remainder = -10

Step-by-step explanation:

Data

Dividend = 8x⁴ - 2x² + 6x - 7

Divisor = 2x + 1

Quotient = 4x³ + px² - qx + 3

Process

1.- Divide using long division

4x³ - 2x² + 3

2x + 1 8x⁴ + 0x³ - 2x² + 6x - 7

- 8x⁴ - 4x³

0 - 4x³ - 2x²

+ 4x³ +2x²

0 0 + 6x - 7

-6x - 3

0 - 10 Remainder

px² = -2x² then p = -2

-qx = 6x then q = -6

5 0

2 years ago

A tower casts a shadow that is 60 feet long when the angle of elevation of the sun is 65˚. How tall is the tower? Round answer t

r-ruslan [8.4K]

Answer: Tthe tower is 129 feet tall.

Step-by-step explanation:

According to trigonometry in a right triangle:

$\tan\theta =\dfrac{\text{Side opposite to }\theta}{\text{Side adjacent to }\theta}$

Let x be the height of the tower.

Given , $\theta=65^{\circ}$

Since tower stands vertical to the ground, that means it is making a right triangle with the shadow.

$\tan 65^{\circ}=\dfrac{x}{60}\\\\\Rightarrow\ 2.1445=\dfrac{x}{60}\ \ \text{[Using calculator]}\\\\\Rightarrow x= 2.1445\times60=128.67\approx129\text{ feet}$

Hence, the tower is 129 feet tall.

3 0

2 years ago