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3 years ago

Find the value of x.

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

9514 1404 393

Answer:

103

Step-by-step explanation:

The sum of angles in a quadrilateral is 360°, so the measure of x° is ...

x° = 360° -127° -90° -40° = 103°

x = 103

jenyasd209 [6]3 years ago

4 0

Answer:

The measure of x is 103 °.

Step-by-step explanation:

Concept :- As we know that sum angles of quadrilateral is 360 ° so, to find the measure of x.

Firstly add all the angles that we have given and subtract from 360 ° and we get the vue of x.

<h3>Solution :- </h3>

We know that The sum angles of quadrilateral is 360 ° , Hence, value of x =

x + 127 ° + 90 ° + 40 ° = 360 °

x + 257 ° = 360 °

Subtract 257 ° from 360 °

x = 360 ° - 257 °

x = 103 °

Therefore, The measure of x is 103 °.

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How would I find the difference of 7/8 - 1/3 ?

Lemur [1.5K]

Answer:

$\frac{13}{24}$

Step-by-step explanation:

We have two fractions and are being asked to subtract them.

7/8 and 1/3 don't have the same denominator, so to do as so, we need to find the LCM of both denominators, multiply them to that, and do the same for the numerators.

So what is the LCM (Least Common Multiple) of 8 and 3?

24.

Therefore :

$\frac{7 * 3}{8 * 3} - \frac{1*8}{3*8}$

$\frac{21}{24} - \frac{8}{24}$

$\frac{13}{24}$

5 0

3 years ago

Read 2 more answers

Ahmad has a bag of 120 marbles. The red marbles, yellow marbles, and green marbles are in the ratio 2:3:7. How many red, yellow,

Bumek [7]

Answer:

Step-by-step explanation:

Total marbles=120

sum of ratio=2+3+7=12

Red=2/12 ×120=20

yellow=3/12×120=30

Green =7/12×120=70

4 0

3 years ago

1. Find the vertex of the following: y = (x - 4)(x - 10) *

horsena [70]

Answer:

1. (7,-9)

2. (4,0) and (10,0)

3. (3,0) and (-3,0)

4. (0,-9)

5. (-1,-32)

Step-by-step explanation:

To find the vertex use the formula

$\frac{-b}{2a}$

First make the equation into a quadratic equation.

$(x-4)(x-10)\\x^{2} -10x-4x+40\\x^{2} -14x+40$

Now it is in the form

$ax^{2} +bx+c=0$

Now we can substitute the values

$\frac{-(-14)}{2(1)} \\\frac{14}{2} \\7$

Now we have 7 as our x value for the vertex we can substitute for y,

$x^{2} -14x+40=y\\(7)^{2} -14(7)+40=y\\49-98+4=y\\y=-9$

So the vertex for 1 is (7,-9)

To find the intercepts for 2 & 3, they basically already give it to you. You just need to find a value for x for x-4 that will equal it to 0 and another for x for x-10 that will equal it to 0.

$x-4=0\\x=4\\\\x-10=0\\x=10$

4 is slightly different but start the same,

$(x-3)(x+3)\\x^{2}+3x-3x-9\\x^{2}-9$

Here, c (9) just shows the graph move down 9, so the y intercept = 9.

5 is the same process as 1,

$2(x-3)(x+5)\\2(x^{2}+5x-3x-15)\\2(x^{2}+2x-15)\\2x^{2}+4x-30$

Vertex,

$\frac{-(4)}{2(2)} \\\frac{-4}{4} \\-1$

Substitute,

$2x^{2}+4x-30\\2(-1)^{2}+4(-1)-30\\2-4-30\\-32$

So the vertex is (-1,-32)

8 0

3 years ago

A small class has 10 students, 4 of whom are girls and 6 of whom are boys. The teacher is going to choose two of the students at

Vinil7 [7]

Answer:

1/3

Step-by-step explanation:

Dividing the amount of boys (6) by the amount of students (10), and then reiterating that, subtracting 1 from both, you get:
(6/10) x (5/9) which equals a third.

7 0

2 years ago

Jackson earned $57,869.00 of taxable income last year. If the federal income tax rate was 25%, then how much federal income tax

STatiana [176]

Answer:

$14,467.25 i hope this helps :)

Step-by-step explanation:

25% of 57,869.00 = $14,467.25

6 0

3 years ago