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3 years ago

Please help me with this 100 points

Mathematics

2 answers:

Serjik [45]3 years ago

5 0

Answer:

2m + 153.5

Step-by-step explanation:

Hey there

2m = The word times means multiplication. So, multiply 2 and m.

153.5 = The phrase more than means addition. So, add 2m and 153.5.

hope it helped

tekilochka [14]3 years ago

4 0

Answer:

why would you lie about giving the points-

Step-by-step explanation:

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What is the product of 2r^2-5 and 3r

bagirrra123 [75]

Two solutions were found :

r = -5/2 = -2.500

r = 1

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

2*r^2-(5-3*r)=0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

2r2 - (5 - 3r) = 0

Step 2 :

Trying to factor by splitting the middle term

2.1 Factoring 2r2+3r-5

The first term is, 2r2 its coefficient is 2 .

The middle term is, +3r its coefficient is 3 .

The last term, "the constant", is -5

Step-1 : Multiply the coefficient of the first term by the constant 2 • -5 = -10

Step-2 : Find two factors of -10 whose sum equals the coefficient of the middle term, which is 3 .

-10 + 1 = -9

-5 + 2 = -3

-2 + 5 = 3 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and 5

2r2 - 2r + 5r - 5

Step-4 : Add up the first 2 terms, pulling out like factors :

2r • (r-1)

Add up the last 2 terms, pulling out common factors :

5 • (r-1)

Step-5 : Add up the four terms of step 4 :

(2r+5) • (r-1)

Which is the desired factorization

3 0

3 years ago

Read 2 more answers

If the radius is 18 cm and the angle at centre of circle is 120° then the

PolarNik [594]

The area of a sector is 339.336 cm²

The area of a sector is defined to be as the region of space bounded by a boundary from the center of the circle.

It can be determined by using the formula:

$\mathbf{A = \dfrac{\theta }{360}\times \pi r^2 }$

Given that;

Radius r = 18 cm
Angle θ = 120°

Then. the area of the sector can be calculated as:

$\mathbf{A = \dfrac{120}{360}\times \pi (18)^2 }$

$\mathbf{A = \dfrac{1}{3}\times 3.142 \times 324 }$

A = 339.336 cm²

Learn more about the area of a sector here:

brainly.com/question/7512468?referrer=searchResults

4 0

2 years ago

a 14 ounce energy drink contains 10 1/2 teaspoons of sugar. How much sugar is in one ounce of the drink?

Y_Kistochka [10]

In this case u need to divide 10 1/2 by 14 coz theres 14 ones in 14
so 10 1/2 divided by 14 = 0.75
<em>so theres 0.75 sugar in one ounce of drink ;)</em>

5 0

4 years ago

Evaluate d – 6.3 when d = 4.26.

ki77a [65]

D - 6.3

Plug in 4.26 for 'd':

4.26 - 6.3 = -2.04

8 0

4 years ago

Find the distance between two points ( -1,1) and (2,-4)

sladkih [1.3K]

Answer:

The distance between two points ( -1,1) and (2,-4) is:

$d=\sqrt{34}$ or d = 5.8 units.

Step-by-step explanation:

Given the points

(-1, 1)

(2, -4)

Finding the distance between (-1, 1) and (2, -4) using the formula

$d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

substitute (x₁, y₁) = (-1, 1) and (x₂, y₂) = (2, -4)

$=\sqrt{\left(2-\left(-1\right)\right)^2+\left(-4-1\right)^2}$

$=\sqrt{\left(2+1\right)^2+\left(-4-1\right)^2}$

$=\sqrt{3^2+5^2}$

$=\sqrt{9+25}$

$=\sqrt{34}$ units

$d = 5.8$ units

Therefore, the distance between two points ( -1,1) and (2,-4) is:

$d=\sqrt{34}$ or d = 5.8 units.

3 0

3 years ago