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1 year ago

I badly want the answer to these☠️

Mathematics

1 answer:

Vedmedyk [2.9K]1 year ago

5 0

Step-by-step explanation:

1. 4/10 + 15/10

The two fractions have like denominators so you can add the numerators.

Then:

4+15/10=19/10

This fraction cannot be reduced.

The fraction

19/10

is the same as

19÷10

Convert to a mixed number using

long division for 19 ÷ 10 = 1R9, so

19/10=19/10

Therefore:

4/10+15/10=1 9/10

2. 50/20+60/20=5 1/2

3. $\sf \frac{60}{40} + \frac{80}{40} = 3 \frac{1}{2}$

4. $\sf\frac{90}{60} + \frac{80}{60} = 2 \frac{5}{6}$

5. $\sf \frac{120}{40} + \frac{80}{40} = 5$

6. $\sf \frac{120}{40} + \frac{140}{40} = 6 \frac{1}{2}$

7. $\sf \frac{110}{70} + \frac{40}{70} = 2 \frac{1}{7}$

8. $\sf \frac{45}{5} + \frac{60}{5} = 21$

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Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points)

NemiM [27]

If you would like to solve the equation -5x - 25 = 78, you should do this using the following steps:

-5x - 25 = 78
-5x - 25 + 25 = 78 + 25
-5x + 0 = 103
-5x = 103 /(-5)
x = 103 / (-5)
x = - 103/5 = - 20.6

The error was already made at step 1.

7 0

2 years ago

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brooke found the equation of the line passing through the points (-7,25) and (-4,13) in slope-intercept form as follows

Goryan [66]

Answer:

The equation of the line passing through the points (-7,25) and (-4,13) in slope-intercept form is $\mathbf{y=-4x-3}$

Step-by-step explanation:

Equation of line passing through the points (-7,25) and (-4,13) in slope-intercept form.

The general equation of slope-intercept form is: $y=mx+b$

First we need to find slope

The formula used for finding slope is: $Slope=\frac{y_2-y_1}{x_2-x_1}$

We are given: $x_1=-7, y_1=25, x_2=-4, y_2=13$

Putting values in formula and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{13-25}{-4-(-7)}\\Slope=\frac{13-25}{-4+7}\\Slope=\frac{-12}{3}\\Slope=-4$

So, slope m= -4

Now finding y-intercept

Using slope m=-4 and point (-7,25) we can find y-intercept

$y=mx+b\\25=-4(-7)+b\\25=28+b\\b=25-28\\b=-3$

So, y-intercept b =-3

Now, the equation of required line having slope m=-4 and y-intercept b=-3 is:

$y=mx+b\\y=-4x-3$

So, the equation of the line passing through the points (-7,25) and (-4,13) in slope-intercept form is $\mathbf{y=-4x-3}$

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2 years ago

5 = 5(y - 2) A. -3 B. 3 C. -1 D. 1

Bess [88]

Answer:

Its 3

Step-by-step explanation:

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2 years ago

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Find the area of the triangle. Round the answer to the nearest tenth. Triangle is SSA. a= 3.7 b= 3.7 β= 70° ----- A.4.4 square u

Alexus [3.1K]

Answer:

A. 4.40 square units

Step-by-step explanation:

The triangle is isosceles with base angles of 70°. The a.pex angle will be ...

180° -2(70°) = 40°

The area of a triangle can be computed from two sides and the angle between them as ...

A = (1/2)ab·sin(γ)

A = (1/2)(3.7)(3.7)sin(40°) ≈ 4.40 . . . square units

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2 years ago

60 POINTS! (Reported if incomplete/absent)

GuDViN [60]

Answer:

- The neighbor that has the most amount of fence to put up is: Neighbor A.

- The neighbor that has the least amount of fence to put up is: Neighbor C.

Step-by-step explanation:

To calculate the amount of fence that Neighbor A has to put up, you need to add the following distances:

Convert yards to feet (Remember that :

To calculate the amount of fence that Neighbor B has to put up, you need to use the formula for calculate the circumference of a circle:

Where r is the radius.

In this case, the radius is:

Substituting, you get:

To calculate the amount of fence that Neighbor C has to put up, you need to add the following distances:

Therefore, the neighbor that has the most amount of fence to put up is: Neighbor A.

The neighbor that has the least amount of fence to put up is: Neighbor C.

hope this helps btw i just copy and pasted this so its not my work

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2 years ago

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I badly want the answer to these☠️​

I badly want the answer to these☠️