Simplify the expression by combining like terms. Then,
evaluate the expression by substituting the given values
for the variables.
x=5 and y=2
y^2 + xy – 7y^2

Answer:

EASY IT'S 48

Step-by-step explanation:

24x2

is the same as

24 + 24

which is 48

Answer:

48

Step-by-step explanation:

         24

      x    2

     ----------

          48

Answer:

2

Step-by-step explanation:

(7^1/2)^2=7^(1/2*2)=7

Answer: C

Step-by-step explanation: I hope its right mark me brainliest plss

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The Correct choice is :

Answer:

For linear function, top to bottom, it's:

f(x)

b

a

x

For mathematical meaning, top to bottom, it's:

output value of an equation

y-intercept

slope or common difference

input value of an equation

Step-by-step explanation:

Answer:

x=94/5

Step-by-step explanation:

10x-8=180

10x=188

x=188/180

x=94/5

Answer:

4 times

Step-by-step explanation:

Area of circle A

[tex]\pi \times {r}^{2} = area \: of \: a \: circle \\ \pi = 3.14 \\ 3.14 \times {8}^{2} \\ 3.14 \times 64 = 200.96 \: {cm}^{2} [/tex]

Area of circle B

[tex]\pi\times 4 (because \: radius \: is \: the \: half \: of \: diameter) \\ 3.14 \times 4 square = 50.24\: {cm}^{2} [/tex]

How many times larger is the area of circle A than circle B

[tex]200.96 \div 50.24 = 4[/tex]

therefore circle A is 4 times larger than circle B in accordance with its area

Answer:

a= 49/5 or 9.8

Step-by-step explanation:

Answer:

49 / 5 ( or ) 9.8

Step-by-step explanation:

( 5a + 3 ) = 52

 5a + 3 = 52

 5a = 52 - 3

 5a = 49

   a = 49 / 5

       ( or )

   a = 9.8

Answer:

15,000 m²= 1.5 hectares

2.5 hectares= 25, 000 m²

Step-by-step explanation:

Sana makatulong

2,889 mi

Distance from South Atlantic Ocean to Gulf of Guinea

Answer:

[tex]6^{2}[/tex]

Step-by-step explanation:

Use power rules.

[tex]\frac{6^{7} }{6^{5} }[/tex]

[tex]6^{7-5}[/tex]

[tex]6^{2}[/tex]

Another way of solving in which the 6s on the numerator cancel with the 6s on the denominator:

[tex]\frac{6*6*6*6*6*6*6}{6*6*6*6*6}[/tex]

[tex]\frac{6*6}{1}[/tex]

6*6

[tex]6^{2}[/tex]

Answer:

y = - [tex]\frac{3}{5}[/tex] x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

[tex]\frac{5}{3}[/tex] y = - (x - 5) ← distribute parenthesis

[tex]\frac{5}{3}[/tex] y = - x + 5 ( multiply through by 3 to clear the fraction )

5y = - 3x + 15 ( divide terms by 5 )

y = - [tex]\frac{3}{5}[/tex] x + 3 ← in slope- intercept form

Answer:

yes n is -6

Step-by-step explanation:

b/c 5(-6)-42=12(-6)

-30-42=-72

-72=-72

Answer:

x = 3

Step-by-step explanation:

40+ 46x + 2 = 180 degrees

46x = 180 - 42

x = 3

Answer:

46x+2°+40°=180° (adj angles on a str line)

46x+42°=180°

46x=180°-42°

=138°

x=138÷46

=3

Answer:

17x−5 =85       3x+5 =15      8x-3= -24 here you can use this to find your awnser

Step-by-step explanation:

Answer:

This includes numbers that are not whole numbers (+ or -). For example, 6.79, 20,193.917017, 4/25, etc.

Answer:

it is the frst tow numbrs 41

Step-by-step explanation:

2 CUPS OF WATER FOR 3 CUPS OF FLOUR

SO 1 CUP = 1.5 water

SO MULTIPLY AND FIND THE ANSWER

Answer:

just translate

Step-by-step explanation:

thats bot much, ñ

Answer:

[tex]y + \frac{1}{2} = \frac{3}{4} \\ y + \frac{2}{2 \times 2} = \frac{3}{4} \\ y + \frac{2}{4} = \frac{3}{4} \\ y = \frac{3}{4} - \frac{2}{4} \\ y = \frac{1}{4} \\ thank \: you[/tex]

Answer: 90

Step-by-step explanation:

Answer:

Angle D is the largest angle on this triangle! (74.261°) I hope you pass your class! : )

D= 74.261°

E= 42.184°

F= 63.554°

Largest to smallest - D, F, E

145 miles. lets see how i got this.

so first i took the 2.5 hour trip and the average speed, which was 58 mph (or 93.3 kph), and multiplied them together, because of the rule of d=rt.

sidenote: also if you want to find the speed, use r=d/t. also, for finding the time, use the t=d/r rule.

side-sidenote: i hope this answers your question and helps you in the future.

key: r= rate (mph or kph), d=distance, and t=time.

Answer:

......the right answer is 12

Answer:

x>14

Step-by-step explanation:

Answer:

[tex] \frac{1}{2} x > 7[/tex]

[tex]x > 7 \div \frac{1}{2} [/tex]

[tex]x > 7 \times 2[/tex]

[tex]x > 14[/tex]

Answer:

Two other points: (2, 4) (6, 4)

Step-by-step explanation:

A line with a slope = 0 is a horizontal line [with a y-intercept of (0, b)], given by the linear equation, y = 4.  This means that the y-coordinate will always equal to 4, regardless of its corresponding x-coordinate. Basically, we could choose any x-coordinate to pair with the y-coordinate of 4.

I chose the ordered pairs, (2, 4) and (6, 4).

Attached is a screenshot of the graphed linear equation, y = 4.        

Answer:

17. first box- 88

second box- 176

18. first box- 9

second box- 5 5/8

Step-by-step explanation:

See photo.

Answer:

For this problem, multiply these fractions.

First, make each one an improper fraction: 2 4/5 is the same as 14/5 and 2 3/7 is the same as 17/7.

Now, 14/5 times 17/7 yields 238/35 which reduces to 34/5. This may be expressed also as the mixed fraction 6 4/5.

So, the shipment contains 6 4/5 tons of sugar. (This is also equal to 13,600 pounds of sugar.)

Answer:

2.11764705

Step-by-step explanation:

Brainliest?