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3 years ago

Anybody know this struggling all day with these math questions

Mathematics

1 answer:

Inga [223]3 years ago

5 0

Answer:

its (-1/2,-5/2),(2,5)

Step-by-step explanation:

Substitute 2x2−3 for y into y=3x−1then solve for x.

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! What is [100(−4)^n-1} equal to?

nikklg [1K]

Answer: -5100

Step-by-step explanation:

$\sum^4_1[100(-4)^{n-1}]\qquad \rightarrow \qquad a_1=100\ \text{and r = -4}\\\\\\S_n=\dfrac{a_1(1-r^n)}{1-r}\\\\\\\\S_4=\dfrac{100(1-(-4)^4)}{1-(-4)}\\\\\\.\quad=\dfrac{100(1-256)}{1+4}\\\\\\.\quad=\dfrac{100(-255)}{5}\\\\.\quad=20(-255)\\\\.\quad=-5100\\$

3 0

3 years ago

How should the decimal point in 83.74 be moved to determine the product 83.74×107

monitta

Decimal point should be moved places to the right.

5 0

3 years ago

Read 2 more answers

Question 29 of 40 Find f(-2) for f(x) = 5.3*.

blsea [12.9K]

Answer:

A. $\frac{5}{9}$

Step-by-step explanation:

To find f(-2) in f(x)=5*3^x, plug in -2 into all the x values.

f(-2)=5*3^-2, you can use calculator to calculate 3^-2 which equals 0.1, forever 1's.

f(-2)=5*0.1=0.5 Forever 5's.

f(-2)=0.5 or $\frac{5}{9}$

Hope this helps!

If not, I am sorry.

4 0

2 years ago

Rewrite the following equation in logarithmic form.

zloy xaker [14]

Answer:

log2(0.25) = -2

512 = 8^3

Step-by-step explanation:

Use of formula: loga (b) = c ⇔ b = a^c

Rewrite the following equation in logarithmic form. 0.25 = 2^-2

log2(0.25) = -2

Rewrite the following equation in exponential form. log8 (512) = 3

512 = 8^3

3 0

3 years ago

If using the method of completing the square to solve the quadratic equation

goblinko [34]

Answer:

Step-by-step explanation:

3 0

3 years ago