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Finger [1]
2 years ago
5

Factor the expression 45b+40​

Mathematics
2 answers:
natali 33 [55]2 years ago
6 0

Answer:

5(9b + 8)

Step-by-step explanation:

Rewrite 45 as 5 * 9

Rewrite 40 as 5 * 8

= 5 * 9b + 5 * 8

Factor out common term 5

=5 (9b + 8)

Zina [86]2 years ago
3 0

Answer:

5(9b+8)

Step-by-step explanation:

You have to see what numbers equally go into 45 and that would be 9 and 5, and then you see what numbers will go into 40 and that is 8 and 5.

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Find the equation of a line, in slope intercept form of a line that passes through the point (-5,-1) and is parallel to the line
Ludmilka [50]

Answer:

y = 1/2x + 3/2

Step-by-step explanation:

Using the equation of the line

y - y_1 = m ( x - x_1)

First find the slope of the line

-2x + 4y = 8

It must be in this form

y = mx + C

4y = 8 + 2x

divide through by 4

4y/4 = 8 + 2x / 4

y = 8 + 2x/4

Let's separate

y = 8/4 + 2x/4

y = 2 + 1/2x

y = 1/2x + 2

Therefore, our slope or m is 1/2

Using the equation of the line

y - y_1 = m ( x - x_1)

With point (-5, -1)

x_1 = -5

y_1 = -1

y - (-1) = 1/2(x - (-5)

y + 1 = 1/2( x + 5)

Opening the brackets

y + 1 = x + 5 / 2

y = x + 5/2 - 1

Lcm is 2

y = x + 5 / 2 - 1/1

y = x + 5 -2/2

y = x +3/2

We can still separate it

y = x /2 + 3/2

y = 1/2x + 3/2

The equation of the line is

y = 1/2x + 3/2

The correct answer is A

3 0
3 years ago
Circle A has a radius of 9 centimeters and Circle B has a diameter of 19 centimeters. What is the relationship between the circu
IRISSAK [1]

Answer:

18:19

Step-by-step explanation:

Given that,

The radius of circle A = 9 cm

The diameter of circle B = 19 cm

We know that,

Radius = diameter/2

The radius of circle B = 19/2 cm

The circumference of circle A is :

C_A=2\pi r_A ....(1)

And that of circle B is :

C_B=2\pi r_B ....(2)

Dividing equation (1) and (2) :

\dfrac{C_A}{C_B}=\dfrac{2\pi r_A}{2\pi r_B}\\\\=\dfrac{r_A}{r_B}\\\\=\dfrac{9}{\dfrac{19}{2}}\\\\\dfrac{C_A}{C_B}=\dfrac{18}{19}

Hence, the ratio of circumferences of Circle A and Circle B is 18:19.

7 0
3 years ago
Can someone please help me with this problem?
Likurg_2 [28]
It is a function so u dont have to solve the equation u just have to make a graphic on it...i have learned in school that first u should do the line of x^3 then u should move the line -2 on the graphic( vertically) and then +8 horizontally
3 0
3 years ago
Vance ate a salad and of a turkey burger for dinner. The salad contained 80 calories and his entire meal contained 440 calories.
Andreas93 [3]

80x-440

Step-by-step explanation:

5 0
4 years ago
Find the unit rate: $9.60 for 4 pounds. and how whould you solve it
ad-work [718]
To find the unit rate of any two numbers you divide:
9.60 divided by 4 = 2.4

Unit rate = $2.40

Hope I helped! :)
6 0
3 years ago
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