Simplify: 7.2(2.8r – 4.5s) + 9.34r – 1.25s

Step-by-step explanation:

because angle A and C are similar, so

9x-8=28

9x=36

x=4

Answer:9 11/20

Step-by-step explanation:

Answer:

B. 2. Of a pizza

Step-by-step explanation:

Answer:

D A and C

Step-by-step explanation:

Answer:

21/2

Step-by-step explanation:

(x-8)/5=2/4

step 1 you simplify if you can to make it easier

(x-8)/5=1/2

step 2 multiply each side by 5

x-8=5/2

step 3 add each side by 8

x=5/2+8

16/2+5/2=21/2

x=21/2

Answer:

146

Step-by-step explanation:

72+4(33+2)−19

=49+4(33+2)−19

=49+4(27+2)−19

=49+(4)(29)−19

=49+116−19

=165−19

=146

Answer:

B i think

Step-by-step explanation:

Answer:

I think it is 2/5

Step-by-step explanation:

40% as a fraction = 2/5

9514 1404 393

Answer:

  (6, 12)

Step-by-step explanation:

The center of the circle is the midpoint of the diameter, the average of the end point coordinates:

  ((3, 8) +(9, 16))/2 = (3+9, 8+16)/2 = (12, 24)/2 = (6, 12)

The center of the circle is (6, 12).

Answer:

parallel i am pretty surre

Step-by-step explanation:

Answer:

Parallel

Step-by-step explanation:

Rearrange the equations and compare with

y = mx + c

where m is the gradient/ slope of the line.

You should see that the two equations have the same value of m, meaning they're parallel.

==========================================

Explanation:

1/2 = 0.5

Every 60 days, the amount cuts in half.

We start with 904 grams and after 60 days, we have 904*0.5 = 452 grams left over.

After another 60 days, we have 452*0.5 = 226 grams left over.

-------------

Alternative Method:

We can apply the half-life formula.

y = a*(0.5)^(x/H)

where,

In this case,

When x = 120 days go by, we have....

y = a*(0.5)^(x/H)

y = 904*(0.5)^(x/60)

y = 904*(0.5)^(120/60)

y = 904*(0.5)^(2)

y = 904*(0.25)

y = 226 grams of antimony left over.

This method is preferred over the first method if you have x be some non-multiple of 60, or if x is fairly large.

Answer:

545.7 Miles

Step-by-step explanation:

If Javier drave 299.6 miles on 14 gallons of gas then divide 299.6 by 14 to get 21.4. Then multiply 21.4 by 25.5 to get 545.7

Step-by-step explanation:

$1.00 - $0.75 = $0.25

She needs $0.25

Answer:

A is (1,4)

B is (3,4)

C is (5,1)

D is (1,1)

Step-by-step explanation:

Hope this helps please mark brainliest

Answer:

5a^2 + 7a

Step-by-step explanation:

Combine like terms

Answer: 10 hours 5 minutes

Step-by-step explanation:

Convert the PM to 24 hour notation: 1720 hrs

Time taken = 1720 - 715

= 1005

= 10 hours 5 minutes

Answer:

d. -18

Step-by-step explanation:

f(-3) = 10x - 3x + 3

10(-3) - 3(-3) + 3

-30 + 9 + 3

-30 + 12

= -18

Please mark me the Brainliest!?!

No, they're not corresponding angles because they are not on the same side of the transversal.

Step-by-step explanation:

Answer:

Simplifying 6p + 2(4 + -2p) = 3(p + 4) 6p + (4 * 2 + -2p * 2) = 3(p + 4) 6p + (8 + -4p) = 3(p + 4) ... Move all terms containing p to the left, all other terms to the right. ... When you enter an equation into the calculator, the calculator will begin by ... Similarly, 2 * (x + 5) can also be entered as 2(x + 5); 2x * (5) can be entered as 2x(5).

Step-by-step explanation:

Answer: The answer to the question you asked up top would be -27, however the question in the picture doesn't match. As for the question in the picture, the answer is should be choice B or  4 square root 2i

Step-by-step explanation:

The first one: add the number together since they are both negative and just place a negative sign in front.

The second one: break down the square root of -18 into 9*-2. Then add   [tex]\sqrt{-2} + 3 \sqrt{-2}[/tex]  which equals [tex]4\sqrt{2}i[/tex]

Answer:

7 1/2 or 15

Step-by-step explanation:

1/2 time 2 = 1 whole there 15 time 2 equal 30 and halfed is 15

Answer:

15

Step-by-step explanation:

15 times 2 = 30 and divided by 2 equals 15

Answer:

h  n ijnf j n2r4h njiw32

Step-by-step explanation:

Answer:

x = -3: [tex]y = 10[/tex], x = -2: [tex]y = 4[/tex], x = -1: [tex]y = 0[/tex], x = 0: [tex]y = -2[/tex], x = 1: [tex]y = -2[/tex], x = 2: [tex]y = 0[/tex], x = 3: [tex]y = 4[/tex]

Step-by-step explanation:

Let [tex]y = x^{2}-x-2[/tex], where [tex]x[/tex] and [tex]y[/tex] are the independent and dependent variables, respectively. The approach consists in evaluating the function at values presented in statement:

x = -3

[tex]y = (-3)^{2}-(-3)-2[/tex]

[tex]y = 10[/tex]

x = -2

[tex]y = (-2)^{2}-(-2)-2[/tex]

[tex]y = 4[/tex]

x = -1

[tex]y = (-1)^{2}-(-1)-2[/tex]

[tex]y = 0[/tex]

x = 0

[tex]y = (0)^{2}-(0)-2[/tex]

[tex]y = -2[/tex]

x = 1

[tex]y = (1)^{2}-(1)-2[/tex]

[tex]y = -2[/tex]

x = 2

[tex]y = (2)^{2}-(2)-2[/tex]

[tex]y = 0[/tex]

x = 3

[tex]y = (3)^{2}-(3)-2[/tex]

[tex]y = 4[/tex]

5(2+x)=5

or, 10+5x=5

or, 5x= -5

or, x= -1

Hope it helps

Answer: B:

Step-by-step explanation: 7*6/7+4*6=30

42/7|4*6 also=30

Answer:

the first answer

Step-by-step explanation:

Answer:

12meters

Step-by-step explanation:

Step one:

given data

Length= 4 meters

Width= 3 meters

Let us find the diagonal by applying Pythagoras theorem

[tex]z^2= x^2+y^2\\\\z^2= 4^2+3^2\\\\z^2= 16+9\\\\z^2= 25\\\\[/tex]

z=√25

z= 5meters

Step two:

Hence the total distance Victor has covered is

total= 4+3+5

total= 12meters

Answer:

it is not possible you cannot divide by zero

Answer:

Step-by-step explanation:

1 . 22

Multiply - 1 by 22

-22

Round numbers to thousands, hundreds, tens, ones, tenths, hundredths and thousandths. Rounding calculator to round numbers up or down to any decimal place. If the digit in the next smallest place value is less than five (0, 1, 2, 3, or 4),