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2 years ago

It's due in one minute, but I have time :)

Mathematics

2 answers:

galben [10]2 years ago

7 0

Answer: 13

Step-by-step explanation:

1: perform the operation in parentheses

2: divide 8 by 2

3: evaluate 3^2

4: add 4+9

nata0808 [166]2 years ago

6 0

First: perform the operation in the parentheses
Second: evaluate 3 (2)
Third: divide 8 by 2
Fourth: Add 4 and 9

Not sure if that’s right or not since i havent done this in 2 years but i tried <3 good luck

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Can somebody please help m eits 9th grade math im so confused !

prisoha [69]

Answer:

Option 3: (5, 1)

Step-by-step explanation:

There are several ways of solving for systems of linear equations, either through graphing, substitution, or elimination.

The graphing method is the easiest, as you only need to plot points on the graph using the y-intercepts and the slopes.

I will be demonstrating the graphing method.

Given the systems of linear equations:

Equation 1: y = x - 4

where the slope, m = 1, and y-intercept (0, -4).

Equation2: y = -x + 6

where the slope, m = -1, and y-intercept (0, 6).

The y-intercept is the point on the graph where it crosses the y-axis, and has coordinates of (0, b).

<h3>Graphing Instructions:</h3>

For Equation 1, plot the y-intercept, (0, -4) on the graph. Then use the slope, m = 1 (rise 1 unit, run 1 unit) to plot other points on the graph. Repeat this process until you have enough points to connect a line with.

Repeat these same procedures for graphing Equation 2, start by plotting its y-intercept at (0, 6), and its slope, m = -1 (down 1 unit, run 1 unit).

<h3>Solution: </h3>

The intersection of both lines occurs at point, (5, 1), which is solution to the given systems of linear equations. Therefore, the correct answer is the third option, (5, 1).

Attached is the screenshot of the graphed systems of linear equations, where it shows the point of intersection at (5, 1).

5 0

3 years ago

Maria sets a goal of jogging 17.5 miles this week she plans on running 2.75 miles each day for seven days if she follows her pla

Anit [1.1K]

Answer:

Step-by-step explanation:

So, to figure this out, we must find the total miles Maria ran in a week.

We know that she ran 2.75 miles each day.

She did this for 7 days.

Her goal was 17.5 miles.

So first, multiply the amount of days by the amount of miles per day:

7*2.75

19.25

So now we know that she ran a total of 19.25 miles in a week.

Since she onlu needed to run 17.5 miles, we can instantly rule out:

A - Runs less 17.5 miles

C - Runs exactly 17.5 miles

This leaves:

B - She runs 1.75 miles more than 17.5 miles

D - She runs 2.75 miles more than 17.5 miles

To figure out which on is correct, subtract her total miles by her goal:

19.25-17.5

1.75

So we know it must be:

B - She runs 1.75 miles more than 17.5 miles

This is because we figured out she ran an extra 1.75 miles.

Hope this helps! :)

6 0

3 years ago

If 1 is the zero of polynomial p(x) x2a- 3xa+3x2-1 find the value of a

bonufazy [111]

The value of a can be obtained by substituting 1 to the equation and equating p(1) = 0.

p(x) = x2a - 3xa + 3x2 -1

p(1) = a - 3a +3 -1 = 0

therefore a =1

the equation now becomes p(x) = x2 - 3x + 3x2 -1

3 0

3 years ago

Write the number as tenths in fraction form and decimal form 10/100

ANTONII [103]

ANSWER

Fraction:

$\frac{1}{10}$

Decimals:

$0.1$

EXPLANATION

To write a number as tenth means we should express it as a fraction with a denominator of 10.

This implies that;

$\frac{10}{100} = \frac{1}{10}$

The decimal form of

$\frac{1}{10}$

$0.1$

5 0

3 years ago

1. A coat is selling for 1/6 of the original price. The sale price is $80. Write an equation to find the

weqwewe [10]

original price:480

how:

x=80×6 or x=80/(1/6)

=480

check: 480/6 or 480×(1/6)

=80

:) hope this helped!

5 0

3 years ago