All categories

3 years ago

I really need help with the question someone give me the answer please

Mathematics

2 answers:

aksik [14]3 years ago

6 0

Answer:

x = -3

Step-by-step explanation:

i used a calculator but if u really need an explanation then let me know

Anettt [7]3 years ago

4 0

Answer:

A) x= -3

Step-by-step explanation:

5+6x=2x-7

add 7 to both sides

12+6x=2x

subtract 6x from both sides

12=-4x

divide 4x from both sides

-3=x

You might be interested in

Why would a bank want to loan someone money?

AVprozaik [17]

Answer: So they can help someone with good credit score

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A plot of land in the shape of a vertical ellipse has a pole at each focus. The foci are 8 feet from the center. If the plot of

PtichkaEL [24]

Answer:

1. B

2.C

Step-by-step explanation:

A plot of land in the shape of a vertical ellipse. The equation of the ellipse is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1.$

If the foci are 8 feet from the center, then $c=8.$

If the plot of land is 34 feet across the vertical axis, then $2b=34\Rightarrow b=17.$

Use formula $c=\sqrt{b^2-a^2}$ (because ellipse is vertical, then b>a) to find a:

$8=\sqrt{17^2-a^2}\Rightarrow a^2=289-64=225,\ a=15.$

Then the plot of land is 2a=30 ft across the other axis.

If b>a, the eccentricity of the ellipse is

$e=\dfrac{c}{b}=\dfrac{8}{17}\approx 0.471.$

3 0

4 years ago

I need help answering this question, thank you

LUCKY_DIMON [66]

i believe the answer is 19

5 0

4 years ago

Ted is making trail mix for a party .He mixes 1/1/2cups of nuts,1/4 cup of raisins,and 1/4 cup of pretzels.How many cups of pret

balandron [24]

Answer:

1.875 or $1\frac{7}{8}$ cups of pretzel

Step-by-step explanation:

The number of cups needed is equivalent to the probability of pretzel in the mix times the number of cups in the mix.

-The probability of pretzel is :

$P(pretzel)=\frac{0.2}{0.25+0.25+1.5}\\\\=0.125$

We multiply this probability by the number of cups of the mix:

$=P(pretzel)\times (mix \ cups)\\\\=0.125\times 15\\\\=1.875 \ or \ 1\frac{7}{8}$

Hence, 1.875 or 1/7/8 cups of pretzel is needed.

6 0

4 years ago

Read 2 more answers

Como resolver (+7).(-5)?<br><br> E favor responder com a expressao montada?<br> Obrigado!!!

Contact [7]

Tu tá no brainly americano, irmão.

$7 \times - 5 = - 7 - 7 - 7 - 7 - 7 = - 35$

7 0

4 years ago