MATHEMATICS HIGH SCHOOL

After making a deposit,puja had $264 in her savings account.She noticed that if she noticed that if she added $26 to the amount originally in the account and doubled the sum,she would get the new amount.How much did she originally have in the account.

Answers

Answer 1

Answer:

Answer:

Let the original deposit be

Add $26 to original deposit

→

And doubled the sum

→

(

)

You get the new amount

→

(

)

264

Multiplying out the bracket

264

Subtract 52 from both sides

264

−

212

Divide throughout by 2

106

So the original amount was $106.00

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Write the equation of the line with a slope of 3 passing through the point (4,10)

7) 2.1x + 45.2 = 3.2 -8.4x

Answers

Answer:

x=-4

Step-by-step explanation:

brainliest please

Answer:

x=-4, Give brainliest please

Step-by-step explanation:

Step 1: Add 8.4x to both sides.

2.1x+45.2 = -8.4x +3.2

+8.4x +8.4x

10.5x+45.2=3.2

Step 2: Subtract 45.2 from both sides.

10.5x + 45.2 = 3.2

-45.2 -45.2

10.5x=−42

Step 3: Divide both sides by 10.5.

$(10.5x)/(10\n)$ = $(-42)/(10)$

x=−4

Calculate the area of a circle with radius of 2cm (1dp)

Answers

pi r^2 = area of a circle so therefore answer is 12.6cm^2

Which answer is equal to ( sqrt 7)^3?
A.7 3/2
B.7 2/3
C.7 1/6
D.7 1/3

Answers

$(√(7))^(3)$
$√(7)√(7)√(7)$
$√(7 * 7 * 7)$
$√(49 * 7)$
$√(343)$
$√(49 * 7)$
$√(49)√(7)$
$7√(7)$
$(7)^{(3)/(2)}$

The answer is A.

Try D As your Answer.

A cannonball is launched out of a cannon. Its height, in feet, can berepresented as h(t)=-16t^2+373t+5, with t measuring seconds. Find h(3)

Answers

Plug 3 in for every x.
The answer is 980 seconds.

Brendan, Miguel, and Jeron run around the track. They start at the same place and at the same time. They each run at a steady rate. Brendan completes a lap in 4 minutes, Miguel completes a lap in 6 minutes, and Jeron completes a lap in3 minutes. The boys want to know how many minutes it will take after they start running until they complete a lap at the same time. How many minutes will it take Brendan, Miguel, and Jeron first complete a lap at the same time?

Answers

Answer:

It 12 if your using I-ready

Step-by-step explanation:

Identify the number of solutions or zeros

2x^2+5x-9=0

Answers

There are going to be two solutions because the "biggest" x is x^2 but you can factor to find what they actually are.

Final answer:

The quadratic equation 2x^2+5x-9 = 0 has two solutions or zeros, which may be real or complex. They can be found using the quadratic formula: x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Explanation:

The equation given is 2x^2+5x-9=0, which is a quadratic equation. The solutions or zeros of a quadratic equation can be found using the quadratic formula: x = [-b ± sqrt(b^2 - 4ac)]/2a. Here, a=2, b=5, and c=-9.

Let's substitute these values into the formula:

x = [-(5) ± sqrt((5)^2 - 4*2*(-9))]/2*2

x = [-5 ± sqrt(25 + 72)]/4

x = [-5 ± sqrt(97)]/4

Therefore, this equation has "two solutions" or zeros, which are x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Learn more about Quadratic Equations here:

brainly.com/question/30098550

#SPJ2

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