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2 years ago

Write a word problem that can be modeled by the equation x + 5 = 12

Mathematics

2 answers:

Dafna1 [17]2 years ago

8 0

It’s x=7 because you have to do 12-5 and that would equal to 7 so 7+5 would equal to 12

Andru [333]2 years ago

6 0

Answer:

x=7

Step-by-step explanation:

x+5=12

-5 -5

x=7

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Math Please Help Make sure you explain your answer Thanks Have a blessed day!/

Alex73 [517]

B. neither is a solution because 24-7 and 24-3 don’t come out to 20.

3 0

2 years ago

Secants AC and DB intersect at point E inside the circle. Given that the measure of arc CD = 40o, arc AB = 60o, and arc BC = 160

s344n2d4d5 [400]

Answer:

C. $130^{\circ}$

Step-by-step explanation:

Please find the attachment.

We have been given that secants AC and DB intersect at point E inside the circle. Given that the measure of arc $CD = 40^o$ , arc $AB = 60^o$ , and arc $BC = 160^o$ . We are asked to find the measure of angle AED.

We know that the measure of angle formed by two intersecting secants is half the sum of measure of the arcs by intercepted by the angle and its vertical angle.

$\angle AED=\frac{\widehat{BC}+\widehat{AD}}{2}$

Let us find measure of arc AD by subtracting measure of given arcs from 360 degrees as:

$\widehat{AD}=360^{\circ}-(60^{\circ}+40^{\circ}+160^{\circ})$

$\widehat{AD}=360^{\circ}-(260^{\circ})$

$\widehat{AD}=100^{\circ}$

$\angle AED=\frac{160^{\circ}+100^{\circ}}{2}$

$\angle AED=\frac{260^{\circ}}{2}$

$\angle AED=130^{\circ}$

Therefore, measure of angle AED is 130 degrees and option C is the correct choice.

6 0

2 years ago

An artificial lake is in the shape of a rectangle and has an area of 9/20 square mile. The width of the lake is 1/5 the length o

Zina [86]

X=width of the lake
y=length of the lake.
we set out this system of equiations
x*y=9/20
x=y/5
we solve by sustitution method
(y/5)*y=9/20
y²/5=9/20
y²=(5*9)/ 20
y²=2.25
y=√2.25=1.5

x=y/5
x=1.5/5=0.3

Solution:
width of the lake=0.3 miles
lenght of the lake=1.5 miles

6 0

3 years ago

Pleasee mwa mwa mwa help me

sammy [17]

Answer: About (-2.414, 0) and (0.414, 0)

Step-by-step explanation:

Let us graph the equation given and see what the x-intercepts are. These are points where the line intercepts the x-axis. <em>See attached</em>.

This means our x-intercepts are at about (-2.414, 0) and (0.414, 0).

These are also equal to $-1-\sqrt{2}$ and $-1+\sqrt{2}$

8 0

1 year ago

Read 2 more answers

What type of conic section is given by the equation 4x^2+9y^2=36? What are its domain and range?

Damm [24]

$4x^2+9y^2=36\\
\\
\frac{4x^2}{36}+\frac{9y^2}{36}=\frac{36}{36}\\
\\
\boxed{\frac{x^2}{9}+\frac{y^2}{4}=1}$

This is a equation of a ellipse (0,0) centered

Domais: {x∈R/-3≤x≤3}
Range:{y∈R/-2≤y≤2}

4 0

2 years ago

Read 2 more answers