All categories

2 years ago

PLEASE HELP ME REALLY QUICK

Mathematics

2 answers:

bulgar [2K]2 years ago

8 0

Answer:

Step-by-step explanation:

BDA = DBC+CBA

84=5x+3 + 6x-7

Combine like terms

84 = 11x-4

Add 4 to each side

84+4= 11x -4+4

88 =11x

Divide each side by 11

88/11 = 11x/11

8 = x

We want angle ABC

ABC = 6x-7

=6*8 -7

=48-7

=41

katovenus [111]2 years ago

5 0

Answer:

∠ABC = 41°

∠ DBC = 43°

Step-by-step explanation:

6x-7 + 5x+3 = 84

6x + 5x = 84 - 3 + 7

11x = 88

x = 8

∠ABC = 6x-7

= 6*8 - 7

= 48 - 7

= 41°

∠ DBC = 5x + 3

= 5*8 + 3

= 40 + 3

= 43°

You might be interested in

Caitlin has cut out a square piece of graph paper that contains a total of 81 blocks.How many blocks are there along one side of

FinnZ [79.3K]

Answer:

9 squares on each side of the square.

Step-by-step explanation:

$\sqrt{81}=\sqrt{9\times 9}=\sqrt{9^2}=9$

There are 9 equally sized blocks on one side of square piece of graph paper.

Best Regards!

5 0

2 years ago

WHAT ARE THE PRINCIPALS PLEASE HELP ME!

Viktor [21]

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal or initial amount of money invested.

R represents interest rate

T represents time

Considering the investment on account A,

I = $6.94

R = 3.7%

T = 9 months = 9/12 = 0.75 years

6.94 = (P × 3.7 × 0.75)/100 = 0.02775P

P = 6.94/0.02775 = $250

Considering the investment on account B,

I = $13.80

R = 2.3%

T = 18 months = 18/12 = 1.5 years

13.8 = (P × 2.3 × 1.5)/100 = 0.0345P

P = 13.8/0.0345 = $400

To determine the account that earned more interest in the first month,

250/9 = $27.8

400/18 = $22.2

Account A earned you the most interest the first month because $27.8 is higher than $22.2

8 0

3 years ago

Need help asap I’m stuck

tiny-mole [99]

The product of the algebraic expressions $3a^{2}b^7$ and $5a^3b^8$ is $15a^5b^{15}$ . Hence, <u>3rd option</u> is the right choice.

<h3>How do we multiply two algebraic expressions?</h3>

When two algebraic expressions are multiplied, the like terms are to be combined and multiplied, and then they should be written as a single algebraic expression.

<h3>How do we solve the given question?</h3>

In the question, we are asked to find the product of the algebraic expressions $3a^{2}b^7$ and $5a^3b^8$ , that is:

( $3a^{2}b^7$ )( $5a^3b^8$ ).

To find the product of the two expressions, we combine the like terms:

$(3*5)(a^2*a^3)(b^7*b^8)$

= $(15)(a^5)(b^{15})$ (Using the law of exponents: $x^a*x^b = x^{a+b}$ )

Now we write them as a single expression: $15a^5b^{15}$ .

∴ The product of the algebraic expressions $3a^{2}b^7$ and $5a^3b^8$ is $15a^5b^{15}$ . Hence, <u>3rd option</u> is the right choice.

Learn more about the product of algebraic expressions at

brainly.com/question/4344214

#SPJ2

6 0

1 year ago

Read 2 more answers

Show me where the number line shows the location of -1.5

Leto [7]

Answer:

what the number line looks like but it would be on the left of 0

6 0

2 years ago

Given a polynomial function f(x) = 2x2 – 3x + 5 and an exponential function g(x) = 2% – 5, what key features do f(x) and g(x) ha

prohojiy [21]

A. Both $f(x)$ and $g(x)$ have the <em>same</em> domain of $(9, +\infty)$ .

<h3>How to analyze similarities in two functions</h3>

In this question we must analyze the domain, range, x-intercepts and <em>increase</em> intervals:

<h3>Domain</h3>

$Dom \{f(x)\} = \mathbb{R}$

$Dom \{g(x)\} = \mathbb{R}$

Both functions are <em>continuous</em>.

<h3>Range</h3>

$Ran \left\{f(x)\right\} = (3.875, +\infty)$

$Ran \{g(x)\} = (-5, +\infty)$

<h3>x-Intercepts</h3>

$f(x):$ $(x,y) = \emptyset$

$g(x):$ $(x,y) = (2.322, 0)$

<h3>Increase intervals</h3>

$f(x):$ According to the graph, $f(x)$ increase over the interval of $(3.875, + \infty)$ .

$g(x) :$ According to the graph, $g(x)$ increase over the interval of $\mathbb{R}$

After a quick analysis, we conclude that option A offer the best approximation to characteristics of both functions. $\blacksquare$

<h3>Remark</h3>

The statement presents mistakes and is poorly formatted. Correct form is:

<em>Given a polynomial function </em> $f(x) = 2\cdot x^{2}-3\cdot x + 5$ <em> and an exponential function </em> $g(x) = 2^{x}-5$ <em>. What key features do </em> $f(x)$ <em> and </em> $g(x)$ <em> have in common? </em>

<em />

<em>A.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same domain of </em> $(9, +\infty)$ <em>.</em>

<em>B.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same range of </em> $(-\infty, 0]$ <em>.</em>

<em>C.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> have the same x-intercept of </em> $(2,0)$ <em>.</em>

<em>D.</em><em> Both </em> $f(x)$ <em> and </em> $g(x)$ <em> increase over the interval of </em> $(-4, +\infty)$ <em>.</em>

<em />

To learn more on functions, we kindly invite to check this verified question: brainly.com/question/5245372

4 0

2 years ago