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3 years ago

Question 1(Multiple Choice Worth 5 points)

2 answers:

6 0

Well, to cover the whole bridge, is 6/6, or 1 whole

so hmmm $\bf \begin{array}{ccllll}
concrete&bridge\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
\frac{4}{5}&\frac{5}{6}\\\\
x&\frac{6}{6}
\end{array}\implies \cfrac{\frac{4}{5}}{x}=\cfrac{\frac{5}{6}}{\frac{6}{6}}\implies \cfrac{\frac{4}{5}}{\frac{x}{1}}=\cfrac{\frac{5}{6}}{\frac{6}{6}}$

$\bf \cfrac{4}{5}\cdot \cfrac{1}{x}=\cfrac{5}{6}\cdot \cfrac{6}{6}\implies \cfrac{4}{5x}=\cfrac{5}{6}\implies 4\cdot 6=5\cdot 5x\implies 24=25x
\\\\\\
\boxed{\cfrac{24}{25}}=x$

shtirl [24]3 years ago

3 0

Answer:

dasfasdfadf

Step-by-step explanation:

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A supplier sells 2 and 1/4 pounds of mulch for every 1 and 1/3 pounds of gravel. The supplier sells 172 pounds of mulch and grav

polet [3.4K]

Because ratios can be written as fractions
$\frac{mulch}{2.25}=\frac{gravel}{1.33}$

172 = $\frac{mulch}{2.25}+ \frac{gravel}{1.33}$
172 - $\frac{mulch}{2.25}$ = $\frac{gravel}{1.33}$
76.44 mulch = x amount of gravel = 172
Gravel = 172 - 76.44
= 95.56

4 0

3 years ago

Solve for [x]. The polygons in each 2x-20 16 16 8

Nataly_w [17]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:x = 16$

____________________________________

$\large \tt Solution \: :$

If two polygons are similar, their corresponding sides ratios will be equal to each other.

$\qquad \tt \rightarrow \: \cfrac{8}{16} = \cfrac{2x - 20}{24}$

$\qquad \tt \rightarrow \: \cfrac{1}{2} = \cfrac{2x - 20}{24}$

$\qquad \tt \rightarrow \: 2x - 20 = \cfrac{24}{2}$

$\qquad \tt \rightarrow \: 2x = 12 + 20$

$\qquad \tt \rightarrow \: 2x = 32$

$\qquad \tt \rightarrow \: x = 16$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

7 0

2 years ago

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

sp2606 [1]

Answer:

Step-by-step explanation:

A discriminate of -8 is never going to give you a real root. D is wrong

You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.

So the answer is B. You have 2 complex roots.

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3 years ago

Can you tell me the ones I got wrong and which are the correct ones. Might need to zoom in. Will give brainly

Mama L [17]

Answer:

I think

Step-by-step explanation:

y might be 50 degrees

z might be 40 degrees

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3 years ago

Which expression gives the distance between the points (-3, 4) and (6,-2)?

stepan [7]

Answer:43

Step-by-step explanation:

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3 years ago