All categories

3 years ago

What is the value of 7.6a + 16.2c, when a = -6 and c = -4?

Mathematics

2 answers:

aleksley [76]3 years ago

8 0

Answer:

-110.4

Step-by-step explanation:

First, substitute the numbers in for the variables. So the equation is -45.6 + (-64.8) which also equals -45.6 - 64.8. This equals -110.4. I hope this helps! Please put me as brainliest. I really need 1 more. Please!

defon3 years ago

7 0

Step-by-step explanation:

Putting values

7.6(-6) + 16.2 (-4)

-45.6 + -64.8

-110.4

You might be interested in

Which is the equation in slope-intercept form for the line that passes through (3, 7)

quester [9]

Answer:

$y = - \frac{5}{3} x + 12$

Step-by-step explanation:

First, rewrite the given equation in the form of y=mx+c.

m is the gradient while c is the y-intercept.

3x-5y=8

5y= 3x -8

$y = \frac{3}{5} x - \frac{8}{5}$

Thus, the gradient of the given equation is ⅗.

The product of the gradients of perpendicular lines is -1.

(gradient of line)(⅗) = -1

gradient of line= -1 ÷⅗

gradient of line= $- \frac{5}{3}$

$y = - \frac{5}{3} x + c$

To find the value of c, substitute a coordinate.

When x=3, y=7,

$7 = - \frac{5}{3} (3) + c$

7= -5 +c

c= 7+5

c= 12

Hence, the equation of the line is $y = - \frac{5}{3} x + 12$ .

6 0

3 years ago

How many squares are in the 20th case

pentagon [3]

Answer:

total 20 squares in matrix of size 4×3

Step-by-step explanation:

in square of size 1×1

six squares of size 2×2

2 squares of size 3×3

3 0

3 years ago

Could someone please help me solve this?

Ber [7]

the answer to your equation is

n=40

3 0

3 years ago

Line PQ in line RS intersect to form four right angles which statement that would it be

Sholpan [36]

Answer:

PQ is perpendicular to RS

that is to mean:

PQ⊥RS

Step-by-step explanation:

3 0

3 years ago

Hey, I really need some help figuring out this question.

Alexandra [31]

Answer:

it's d

Step-by-step explanation:

because the answer would be the same on both sides

6 0

2 years ago