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2 years ago

What is the coefficient in the expression below? 7b + 10

Mathematics

2 answers:

Dima020 [189]2 years ago

8 0

Answer:

Step-by-step explanation:

a coefficient is is the number being multiplied by the variable, and in this case 7 is being mulitiplied by b, making it the coefficient.

mylen [45]2 years ago

5 0

Answer:

Equation : 7b+10

Therefore, cofficient of b is 7

<h2>7 is the right answer.</h2>

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A zoo randomly sampled three groups of 100 people on what their favorite type of bear is. The data shows the results of the thre

maxonik [38]

Answer:

1555 people

Step-by-step explanation:

First, average the votes for polar bears.

(46 + 43 + 49)/3 = 46

Next, make the variable x equal to the estimate of the number of people who will prefer polar bear out of the 3380 people and set up your proportion equation.

x/3380 = 46/100

x = 1554.8

Round to the nearest whole number to get 1555.

3 0

2 years ago

It's emergency pls.

Varvara68 [4.7K]

Answer:

see above there is the answer sorry for rough

7 0

3 years ago

Work out the area of the rectangle

Anna007 [38]

Answer:

48 cm²

Step-by-step explanation:

Let's call the width and height of the rectangle w and h.

w / h = 3 / 4

2w + 2h = 28

Solve the system of equations with substitution.

w = 3/4 h

2 (3/4 h) + 2h = 28

3/2 h + 2h = 28

7/2 h = 28

h = 8 cm

So the width is:

w = 3/4 (8)

w = 6 cm

So the area is:

A = wh

A = 48 cm²

8 0

2 years ago

Identify the relation that is also a function. A. {(-1, 1) (0, 0) (1, 1) (2, 4)} B. {(3, 4) (2, 3) (3, 6) (2, 0)} C. {(1, 0) (2,

madreJ [45]

Answer:

Step-by-step explanation:

We are given four sets of relations as

$A. {(-1, 1) (0, 0) (1, 1) (2, 4)} \\B. {(3, 4) (2, 3) (3, 6) (2, 0)} \\C. {(1, 0) (2, 3) (3, -2) (1, 6)} \\D. {(3, 2) (3, -2) (3, 6) (3, 8)}$

A function is a relation in which every element in the first set has a unique image in the second set.

Let us check this aspect to A.

This is a function

Now come to B. 3 has two images 4 and 6. so not a function

Next is C. in C 1 has two images 0 and 6. So not a function

For D, 3 has 4 images so not a function.

3 0

2 years ago

What is the slope of the line that passes through (3, −7) and (−1, 1)? (1 point)

ELEN [110]

Answer:

The slope of the line is -2

Step-by-step explanation:

<em>The rule of the slope of a line is</em>:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ , where

$(x_{1},y_{1})$ and $(x_{2},y_{2})$ are two points on the line

<em>Let us find the slope using the rule above</em>

∵ The line passes through points (3, -7) and (-1 , 1)

∴ $x_{1}$ = 3 and $x_{2}$ = -1

∴ $y_{1}$ = -7 and $y_{2}$ = 1

<em>Substitute these values in the rule above to find m</em>

∴ $m=\frac{1--7}{-1-3}=\frac{1+7}{-4}=\frac{8}{-4}=-2$

∴ The slope of the line that passes through the given points is -2

8 0

3 years ago