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3 years ago

The Question Is In The Image.

Mathematics

1 answer:

Klio2033 [76]3 years ago

7 0

Answer:

its 2 circles

Step-by-step explanation:

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When full, the gas tank of a car holds 15 gallons. It now contains 12 gallons. What percent represenrs how full the tank is?

andrew-mc [135]

$15 \div 100 = 12 = x \\ step \: 1) \\ multiply \: the \: central \: numbers \\ 100 \times 12 = 1200 \\ step \: 2) \\ divide \: by \: 15 \\ 1200 \div 15 = 80 \\ 80\%$

8 0

3 years ago

find the area of the isocele triangle formed by the points of intersection of parabolas y=-x^2+9 and y=2x^2-3 and the origin

leonid [27]

Answer:

$10\ \text{sq. units}$

Step-by-step explanation:

The parabola's are

$y=-x^2+9$

$y=2x^2-3$

$-x^2+9=2x^2-3\\\Rightarrow 12=3x^2\\\Rightarrow \\\Rightarrow x=\sqrt{\dfrac{12}{3}}\\\Rightarrow x=\pm 2$

$y=-x^2+9=-(2)^2+9\\\Rightarrow y=5$

$y=-(-2)^2+9=5$

So, the points at which the parabola's intersect each other is $(2,5)$ and $(-2,5)$

The three points of the triangle are $(2,5)$ , $(-2,5)$ and $(0,0)$

Area of a triangle is given by

$A=\dfrac{1}{2}[x_1(y_2-y_3) + x_2(y_3-y_1) + x_3(y_1-y_2)]\\\Rightarrow A=\dfrac{1}{2}[2(5-0)+(-2)(0-5)+0(5-5)]\\\Rightarrow A=10\ \text{sq. units}$

Area of the triangle formed is $10\ \text{sq. units}$ .

3 0

3 years ago

If D is the midpoint of EG, find the length of EG

Brrunno [24]

ED = x - 5 given

DG = 4x - 38 given

ED = DG definition of midpoint

x - 5 = 4x - 38 substitution

-5 = 3x - 38 subtraction property of equality (subtracted x from both sides)

33 = 3x addition property of equality (added 38 to both sides)

11 = x division property of equality (divided 3 from both sides)

ED = x - 5 → ED = 11 - 5 → ED = 6 substitution

since ED = DG, then DG = 6 transitive property

ED + DG = EG segment addition property

6 + 6 = EG substitution

12 = EG simplified like terms

Answer: 12

7 0

4 years ago

During one week, Josh ran 36 miles, Corey ran 26 miles, Rhona ran 30 miles, and Lyndsay ran 28 miles. What is the mean distance

wolverine [178]

B.) 30 miles

You needed to add all the numbers together then divide by the amount of numbers there which is 4. (ex: 36 + 26 + 30 + 28 = 120 120÷4= 30)

hope that helps!

6 0

3 years ago

Can someone pls help?

True [87]

Answer: Mark me brainliest..

Step-by-step explanation: and imma put the answer in the comments if you do so. youve got nothing to lose! :D

7 0

3 years ago