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3 years ago

(x+7)(2x+1)=7 solve by using quadratic formula

Mathematics

1 answer:

Olenka [21]3 years ago

8 0

I believe it is x= 7, -2

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Write the number of lines of symmetry in each letter of the word MATHEMATICS

11111nata11111 [884]

Answer:

Letter 'S'

Step-by-step explanation:

in the word 'MATHEATICS' has no line symmetry.

8 0

2 years ago

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Can someone answer this please

Ira Lisetskai [31]

I got 75 and I’m pretty sure that right?

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3 years ago

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Use the graph to determine the correct relationship between the mean and median. A) mean < median B) median < mean C) medi

ioda

Answer:

B) median < mean

Step-by-step explanation:

To find the median, take away one of the frequencies until you have only one left. The median is 6.

To find the mean add up all of the numbers and divide by how many numbers are used. 3 + 4(3) + 6(8) + 8(3) + 10(2) + 11 = 118/17 = 6.94

This means that the mean is greater than the median.

If this answer is correct, please make me Brainliest!

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3 years ago

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You need to buy a car to help you get to school and work. You take out a $8,000 loan with a 9.25% annual simple interest rate to

vovikov84 [41]

Answer:

A) Interest that will be charged = $4070

B) The total amount to be paid = $12070

Step-by-step explanation:

Given:

Initial amount paid = $8,000

Rate of the interest = 9.25%

Time period = 66 months

A) AMOUNT OF INTEREST CHARGED

Let the interest charge be x

$\text{Simple interest, x} =\frac{\text { principal amount } \times \text {rate of interest } \times \text { number of years }}{100}$

here we are given with number of months i.e., 66 months

converting 66 months into years

=> $\frac{66}{12}$

=>5.5

so 66 months = 5.5 years

Now substituting the vales in the formula we get,

simple interest, x = $\frac { 8000\times 9.25 \times5.5}{100}$

simple interest, x = $\frac {74000 \times5.5}{100}$

simple interest, x = $\frac {407000}{100}$

simple interest, x = 4070

B) TOTAL AMOUNT TO BE PAID:

Let the total amount paid after 66 months be Y

Then ,

Y = Principal amount + interest for 66 months

Y = 8000+ 4070

Y =12070

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4 years ago

Write the equation for the circle with center at (0,0) and radius of 4.

Gennadij [26K]

Answer:

$x^2 + y^2 = 16$

Step-by-step explanation:

The center of a circle can be used to write the equation $(x-h)^2 + (y-k)^2 = r^2$ . Notice h and k are the opposite value as in the equation.

Since the center is (0,0), substitute h=0 and k=0. Then substitute r = 4.

$(x-0)^2+(y-0)^2 = 4^2\\x^2 + y^2 = 16$

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3 years ago