All categories

3 years ago

Select the phrase that best completes the sentence.

Mathematics

1 answer:

muminat3 years ago

3 0

Answer:

No solution

Step-by-step explanation:

You might be interested in

Find an equation of the line that goes through the points (-9,-20) and (-8,-17). Write your answer in the form y = m x + b .

Oliga [24]

Answer:

y = 3x + 7

Step-by-step explanation:

First, we will solve for the slope (m).

The formula for slope is: m = $\frac{y2 - y1}{x2 - x1}$

m = $\frac{-17 - -20}{-8 - -9}$ --- enter the points into the formula

m = $\frac{3}{1}$ --- simplify

m = 3 --- simplify

Now we will solve for the y-intercept (b).

y = mx + b

y = 3x + b --- substitute the slope into the equation

-20 = 3(-9) + b --- substitute the x and y of either point into the equation

-20 = -27 + b --- simplify

7 = b --- add 27 to both sides

b = 7

Done.

y = 3x + 7

4 0

3 years ago

What are the solution of x^2-2x+17=0

ddd [48]

Answer:

Step-by-step explanation:

$x^2-2x+17=0\qquad\text{subtract 17 from both sides}\\\\x^2-2x=-17\\\\x^2-2(x)(1)=-17\qquad\text{add}\ 1^2\ \text{to both sides}\\\\x^2-2(x)(1)+1^2=-17+1^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-1)^2=-17+1\\\\(x-1)^2=-16$

$x-1=-4i\ \vee\ x-1=4i\qquad\text{add 1 to both sides}\\\\x=1-4i\ \vee\ x=1+4i$

4 0

3 years ago

On a platter of chicken wings, there are mild wings and hot wings. In a representative sample of 15 chicken wings, there are 8

natulia [17]

Answer:

Step-by-step explanation

15x2=30 so 30=16

30x2=60 so 60=32

60+30=90 so 90=48

4 0

3 years ago

Read 2 more answers

The ratio of the number of boys to that of girls in a school is 4:3. If the number of girls in the school is 162, find the numbe

timofeeve [1]

Answer:

total number of boys in skool is 216

And

ratio of girls to boys is a 3:4

Step-by-step explanation:

let total no. of boys be X

ACCORDING TO QUESTION

ratio of boys to girls = 4:3

total number of girls = 162

now

4/3=X/162

or, 4×162= 3x

or, 4×162/3= X

hence

X = 216

therefore total number of boys is 216

and

ratio of girls to boys is =162/216

=3/4

=3:4

4 0

3 years ago

What is the equation of a line with a slope of 7 and a point (1, 8) on the line? Express the equation in the form of â€‹ y=mx b

stepan [7]

The equation of a line is $y = 7x+1$ .

Given that,

The slope of the line is 7 and a point (1, 8) on the line.

We have to find,

The equation of the line is in the form of $\rm y = mx +c$ .

According to the question,

The standard form of the equation having slope m and y in the intercept can be written as,

$\rm y = mx +b$

The slope of the line is 7 and point (1, 8),

Then,

The value of c is,

$\rm y = mx + c\\\\8 = 7(1) +c\\\\c = 8-7 \\\\c = 1$

Therefore,

The equation of the line is,

$\rm y = mx +b\\\\y = 7x+ 1$

Hence, The required equation of a line is $y = 7x+1$ .

For more details refer to the link given below.

brainly.com/question/2564656

4 0

3 years ago

Read 2 more answers