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2 years ago

This math is so hard. Please help!

Mathematics

1 answer:

lord [1]2 years ago

3 0

Answer:

f(x)= -(x+1)^2 -2

Step-by-step explanation:

f(x)=(x-h)^2 +k; (h,k)

Then you would substitute the x and y of the coordinate and solve.

-6= -(1+1)^2 -2

-6= -(4) -2

-6 = -6

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Multiply. ·−4/8*5*1/7

marysya [2.9K]

20/56 or.. 5/14........

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3 years ago

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Richard goes electronics store. He buys 2 memory cards that cost 8.99 each and 3 packages of batteries that are on sales for 7.4

Licemer1 [7]

His total is (73.37) hope it helps and have a great day!

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2 years ago

URGENT! 40 POINTS! PLEASE HELP!

umka2103 [35]

Answer:

(a) $8 x(5 x-6)=40 x^{2}-48 x$

Step-by-step explanation:

(a) To find verify the answer we need to multiplying the equation $8 x(5 x-6)$

$8 x(5 x-6)=40 x^{2}-48 x$

Thus, this statement is true.

(b) To find verify the answer we need to multiplying the equation $-4 x\left(2 x^{2}+1\right)$

$-4 x\left(2 x^{2}+1\right)=-8 x^{3}-4 x$

Hence, the given statement is false.

$\begin{aligned}(x-3)(5 x-6) &=5 x^{2}-6 x-15 x+18 \\&=5 x^{2}-21 x+18\end{aligned}$

Hence, the given statement is true.

(d) To find verify the answer we need to multiplying the equation $(2 x+3)\left(x^{2}+3 x-5\right)$

$\begin{aligned}=(2 x+3)\left(x^{2}+3 x-5\right) &=2 x^{3}+6 x^{2}-10 x+3 x^{2}+9 x-15 \\&=2 x^{3}+9 x^{2}-x-15\end{aligned}$

Hence, the given statement is false.

4 0

2 years ago

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If the diameter is 15.5 cm what is the circumference

tresset_1 [31]

Answer:

see below

Step-by-step explanation:

The circumference is given by

C = pi *d

C = 15.5 pi

If we approximate pi by 3.14

C = 15.5 * 3.14

C =48.67

If we use the pi button

C =48.69486813

8 0

3 years ago

I see the amount was $90.00 then reduced to $<br>75.00 , what is the percent ?

VashaNatasha [74]

Answer:

16 2/3 %

Step-by-step explanation:

Since the price went down, we are find the percent decrease.

Percent decrease = (original price - new price)/ original price

= (90 - 75)/90

=15/90

.1666666666666

Changing to percent form

16.6666666666666666666666%

16 2/3 %

5 0

2 years ago