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1 year ago

Evaluate each expression if a = 6 9a – 10

Mathematics

1 answer:

BartSMP [9]1 year ago

7 0

We have to a for its value 6, then multiply by its coefficient to then subtract.

$9a-10\Rightarrow9\cdot6-10\Rightarrow54-10=44$ <h2>Therefore, the expression is equivalent to 44.</h2>

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Find an equivalent ratio in simplest terms: 25:75

Sati [7]

Answer:

1:3

Step-by-step explanation:

Both numbers are divisible by 25:

25 ÷ 25 = 1
75 ÷ 25 = 3

∴ The simplified ratio is 1:3

Hope this helps!

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3 years ago

Use math drawings to make pictures equal

gavmur [86]

Well, what are the pictures??

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4 years ago

Evaluate f(-2) if f(x)=-3x^2-1

Pani-rosa [81]

f(x)=-3x^2-1

f(-2)= -3(-2)²-1=-3·4-1= - 13

4 0

4 years ago

A, B, and C are collinear, and B is between A and C. The ratio of AB to BC is 3 : 1.

S_A_V [24]

Coordinates of point C: (1,-1)

Step-by-step explanation:

In this problem, A, B and C are collinear, and B is between A and C.

The ratio AB : BC is 3 : 1.

This means that we can write the following two equations:

$x_B-x_A = 3(x_C-x_B)\\y_B-y_A=3(y_X-y_B)$

where:

$(x_A,y_A)=(-7,3)$ are the coordinates of point A

$(x_B,y_B)=(-1,0)$ are the coordinates of point B

$(x_C,y_C)$ are the coordinates of point C

Solving the equation for $x_C$ ,

$x_C = x_B + \frac{x_B-x_A}{3}=-1+\frac{-1-(-7)}{3}=1$

Solving the equation for $y_C$ ,

$y_C=y_B + \frac{y_B-y_A}{3}=0+\frac{0-3}{3}=-1$

So, the coordinates of point C are

$C(-1,1)$

Learn more about how to divide segments:

brainly.com/question/3269852

brainly.com/question/11280112

#LearnwithBrainly

4 0

3 years ago

I need HELP ASAP! It’s due today

Vikki [24]

Answer:

28 cubs

Step-by-step explanation:

Since one and a half bear produces one and a half cub, then 6 bears will produce 6 cubs in one and a half days.

We need to find 7 days, though but we have the rate for six bears for 1.5 days which 6 bears one a half day.

What is the rate for a day?

6/1.5 =

6 bears produce 4 cubs a day.

Now just do 4 x 7

4 x 7 = 28

Therefore, 6 bears produce 28 cubs in 7 days.

8 0

3 years ago

Read 2 more answers