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4 years ago

Branliest and Extra Points will be given!!! No explanation needed just the answer plz.

Mathematics

1 answer:

Hitman42 [59]4 years ago

3 0

Right triangle, Pythagorean Theorem:

c² = a² + b²

a=8, b=9

c² = 8² + 9² = 64 + 81 = 145

c = √145 inches

That's the exact answer but they want us to ruin it with an approximation.

c ≈ 12.041594578792296 inches

Answer: 12

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Please help me anyone i need this in 10 minutes

Radda [10]

Given:

The rate of interest on three accounts are 7%, 8%, 9%.

She has twice as much money invested at 8% as she does in 7%.

She has three times as much at 9% as she has at 7%.

Total interest for the year is $150.

To find:

Amount invested on each rate.

Solution:

Let x be the amount invested at 7%. Then,

The amount invested at 8% = 2x

The amount invested at 9% = 3x

Total interest for the year is $150.

$x\times \dfrac{7}{100}+2x\times \dfrac{8}{100}+3x\times \dfrac{9}{100}=150$

Multiply both sides by 100.

$7x+16x+27x=15000$

$50x=15000$

Divide both sides by 50.

$x=\dfrac{15000}{50}$

$x=300$

The amount invested at 7% is $300$ .

The amount invested at 8% is

$2(300)=600$

The amount invested at 9% is

$3(300)=900$

Therefore, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.

6 0

3 years ago

I need to know the answer step by step.

allochka39001 [22]

Answer:

108

Step-by-step explanation:

Since B=3, you need to do 4(3)^2*3

Do 3^2, which is 9,

4*9=36,

36*3=108

7 0

3 years ago

Add. Express your answer in simplest form. 225+445 = $$

Scrat [10]

The simplest form of this sum is 670.

4 0

3 years ago

Clive and Erica both have part-time jobs where they get paid by the hour. Erica makes more than Clive. The number of dollars, dd

SIZIF [17.4K]

Missing Options:

A. Erica's graph is incorrect, because the slope should be greater than 9.5.

B. Erica's graph is incorrect, because the y-intercept should be greater than 9.5.

C. Erica's graph is correct, because the slope should be less than 9.5.

D. Erica's graph is correct, because the y–intercept should be less than 9.5.

Answer:

A. Erica's graph is incorrect, because the slope should be greater than 9.5.

Step-by-step explanation:

Given

Clive:

$d = 9.5h$

Erica:

$m = 9$ --- slope

$b =0$ --- y intercept

First, we need to determine the equation of Erica's earnings using

$d = mh + b$

Where

m = slope = 9

b = y intercept = 0

So, the equation becomes

$d = 9 * h + 0$

$d = 9h + 0$

$d = 9h$

This implies that Erica earns 9 dollars per hour

For Clive:

$d = 9.5h$

This means that Clive earns 9.5 dollars per hour

From the question, we understand that Erica earns more than Clive.

So, we can conclude that Erica's graph is incorrect because the slope must be greater than 9.5.

When the slope is greater than 9.5, then she earns more than Clive.

6 0

3 years ago

Ana planted a garden with equal of roses daffodils and tulips. if she randomly selects a flower what is the probability that it

harkovskaia [24]

Answer:

33.3%

Step-by-step explanation:

If all of them are equal out of 100%

that means Roses are 33.3 daffodils are 33.3 and lilly's are 33.3

8 0

3 years ago