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3 years ago

This is and URGENT QUESTION!!

Mathematics

2 answers:

BigorU [14]3 years ago

8 0

B

I do hope this is right please forgive me if this is wrong.

zepelin [54]3 years ago

3 0

Ironically, the correct answer doesn't have a correlated analysis.

D is correct.

22 of 40 is 55%

14 of 50 is 28%.

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7/8 as a decimal rounded to the nearest tenth. Write 3x+4y=19 in intercept form Solve 3X +7=35. What is a transformation that t

MissTica

Answer:

7/8 ≈ .9

y = -3x/4 + 4.75

x = 9 ⅓

Rotation

Step-by-step explanation:

1.) 7/8 = 0.875 The hundredths place is 7, which means we round up to 0.9

2.) Isolate the y on the left. Then divide both sides by 4

3.) Subtract 7 from both sides, then divide both sides by 3

Rotation turns around a point Reflection flips across a line.

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3 years ago

The area of a rectangular picture frame is 93.5 square inches. The area formula for a rectangle is A=l⋅w. Write and solve an equ

Nikolay [14]

Answer:

W=A/L

Step-by-step explanation:

If the area of the rectangle is L*W, you can just rearrange the equation A=L*W to get W=A/L, an equivalent equation.

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3 years ago

Heather is solving an equation by graphing the expressions on either side of the equal sign. If the graph intersects at an infin

Jlenok [28]

Answer:

one side of the equation is a quadratic equation, and the other side of the equation is a quadratic expression

Step-by-step explanation:

the description needs to be the same for each equation. For example linear and linear would work as well.

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3 years ago

Read 2 more answers

Plz help me solve this question ASAP without using algebra, Thank u‼️

VashaNatasha [74]

Let cost of 1 box of red pen = x

Let cost of 1 box of black pen = y

Gaga bought 5 red box and her sister 4 black box then total cost is given by

5x+4y

Given that total cost was $44

so equation will be 5x+4y=44...(i)

After exchange

Gaga= 4 red box + 1 Black box

Sister = 1 red box + 3 Black box

then cost for Gaga = 4x+1y

cost for sister = 1x+3y

Given that cost for both after exchange is same so we get

4x+1y = 1x+3y

or 4x-1x = 3y-1y

or 3x = 2y

or 3x/2=y ...(ii)

plug (ii) into (i)

5x+4y=44

5x+4(3x/2)=44

5x+12x/2=44

5x+6x=44

11x=44

x=4

Now plug value of x into (ii)

y=3x/2=3*4/2=12/2=6

Hence cost of 1 box of red pen = $4

And cost of 1 box of black pen = $6

---

If you want to get solution without solving both equations then just graph both equations and find the intersection point.

You will see that graph intersect at (4,6) which gives x=4, y=6

6 0

3 years ago

Find the exponential function P(t)=P0a^t where P(2)=5 and P(4)=10

asambeis [7]

Answer:

$P(t)=\frac{5}{2} \cdot (\sqrt{2})^t$

Step-by-step explanation:

$P(2)=5$ meants when $t=2$ , that the value for $P(t)$ is 5.

So this gives us this equation:

$5=P_0 \cdot a^2$

$P(4)=10$ meants when $t=4$ , that the value for $P(t)$ is 10.

So this gives us this equation:

$10=P_0 \cdot a^4$

So I take equation 2 and divide it be equation 1 I get:

$\frac{10}{5}=\frac{P_0 \cdot a_4}{P_0 \cdot a_2}$

Simplifying:

$2=a^2$

Since the base for an exponential function can't be negative then $a=\sqrt{2}$ .

So plugging into one of my equations I began with gives me an equation to solve for the initial value, $P_0$ :

$5=P_0 \cdot (\sqrt{2})^2$

$5=P_0 \cdot 2$

Divide both sides by 2:

$\frac{5}{2}=P_0$

The function is:

$P(t)=\frac{5}{2} \cdot (\sqrt{2})^t$

7 0

3 years ago