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ICE Princess25 [194]
3 years ago
13

8 times (4+5+7) evalute

Mathematics
2 answers:
il63 [147K]3 years ago
7 0
8 times (4 + 5 + 7) evaluate.

8 × (4 + 5 + 7)
<span>8 × (16) 
</span>128

 <span>8 times (4+5+7) is 128. </span>
algol [13]3 years ago
5 0
Simple. 128. First,you add 7 5 and 4 together,which is 16. That is how you get your answer.
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What is 26 divided by 130
Elden [556K]
26:130=\frac{26}{130}=\frac{26:13}{130:13}=\frac{2}{10}=\boxed{0.2}=\frac{2:2}{10:2}=\boxed{\frac{1}{5}}
5 0
3 years ago
A triangle is to be dilated with the origin as the center of dilation and with a scale factor of 2. Which answer choice correctl
saveliy_v [14]

Answer:

All the coordinates are changed to

(x, y) ⇒ (2x, 2y)

Step-by-step explanation:

Given - A triangle is to be dilated with the origin as the center of dilation and with a scale factor of 2.

To find -  Which answer choice correctly maps this dilation algebraically?​

Proof -

Let ABC is a triangle where A, B, C are the vertices of the triangle respectively.

Now,

Let the coordinates be (x, y)

If a triangle is to be dilated with the origin as the center of dilation and with a scale factor of a , then the coordinated be changes as

(x, y) ⇒ (ax, ay)

Here given , a = 2

So, all the coordinates are changed to

(x, y) ⇒ (2x, 2y)

3 0
2 years ago
Ultiple Choice
gulaghasi [49]

Answer:

4 12

3 18

5 20

7 42

5 15

Step-by-step explanation:

all of the above form a proportion

8 0
3 years ago
The points A-1,-9) and K(5,1) are endpoints of a diameter of circle 5. Which equation represents circle S?
Lilit [14]

Answer:

A

Step-by-step explanation:

if (x1,y1) and (x2,y2) are the extremities of diameter,then eq. of circle is

(x-x1)(x-x2)+(y-y1)(y-y2)=0

reqd. eq. is (x+1)(x-5)+(y+9)(y-1)=0

x^{2} +x-5x-5+y^2+9y-y-9=0\\x^{2} -4x+y^2+8y-14=0\\compare with x^2+y^2+2gx+2fy+c=0\\center (-g,-f) \\radius r=\sqrt{g^2+f^2-c}

center is (2,-4)

r=√(2²+(-4)²-(-14))

=√(4+16+14)

=√(34)

eq. of circle is (x-2)²+(y+4)²=34

or

(x²-4x)+(y²+8y)=14

(x²-4x+4)+(y²+8y+16)=14+4+16

(x-2)²+(y+4)²=34

4 0
3 years ago
Leroy purchased 6 gallons of gasoline for $19.56. Which describes the constant of proportionality (k)? N A) $2.26 per gallon B)
Lemur [1.5K]

Answer:

3.26

Step-by-step explanation:

4 0
3 years ago
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